Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859046
Fei Li, G. Zhang, Ge Lei, Xi Wang
Aiming at the differences in the data frame format, transmission rate and medium access mechanism of the bus protocol used in the interaction between the Rotary Steering System (RSS) tool and the Measurement While Drilling (MWD) tool in the downhole petroleum instrument, as well as many challenges faced by traditional embedded software development question. In this paper, the test-driven development method is used to develop the inter-instrument communication protocol conversion software, which improves the robustness and stability of the code, and effectively solves the problems faced by the traditional embedded development mode. The software is based on TI's cross compiler CCS as a development tool. Firstly, through analyzing the overall scheme of the system design, the software functions during software development are analyzed in detail. The software is divided into three modules: command receiving, conversion, and transmission module. Secondly, according to the test-driven development mode, write a list of test cases and design test cases for each functional module in sequence. Then write the product code to make the test case pass. After the test is passed, refactor the code to eliminate duplication. After confirming the correctness of the product code and optimizing the code, write the following test case and the corresponding function code in the list until the code design of the entire module is completed.
{"title":"Software Design of Protocol Conversion between Instruments Based on Test-Driven Development","authors":"Fei Li, G. Zhang, Ge Lei, Xi Wang","doi":"10.1109/ICMSP55950.2022.9859046","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859046","url":null,"abstract":"Aiming at the differences in the data frame format, transmission rate and medium access mechanism of the bus protocol used in the interaction between the Rotary Steering System (RSS) tool and the Measurement While Drilling (MWD) tool in the downhole petroleum instrument, as well as many challenges faced by traditional embedded software development question. In this paper, the test-driven development method is used to develop the inter-instrument communication protocol conversion software, which improves the robustness and stability of the code, and effectively solves the problems faced by the traditional embedded development mode. The software is based on TI's cross compiler CCS as a development tool. Firstly, through analyzing the overall scheme of the system design, the software functions during software development are analyzed in detail. The software is divided into three modules: command receiving, conversion, and transmission module. Secondly, according to the test-driven development mode, write a list of test cases and design test cases for each functional module in sequence. Then write the product code to make the test case pass. After the test is passed, refactor the code to eliminate duplication. After confirming the correctness of the product code and optimizing the code, write the following test case and the corresponding function code in the list until the code design of the entire module is completed.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131179920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859100
Fei Li, Jialong Yue, Xueying Ma, Lihao Cheng
Rotary steerable system in directional drilling is considered the development trend of modern technology. A permanent magnet synchronous motor is used as an activation module in the rotary steerable system. However, the downhole environment is complex, and there are unknown disturbances, which puts higher requirements accurate motor control in directional drilling. Thus, it is essential to acquire precise measurements of motor parameters. This paper proposes a parameter identification method for a permanent magnet synchronous motor. Firstly, the resistance, DQ axis inductance, and flux linkage identification of permanent magnet synchronous motor are theoretically analyzed, and formulas are derived. Then the resistance, inductance, and flux linkage of the motor are simulated and analyzed by Simulink. The simulation results show that the maximum error of the parameter identification method is 2.25%; Finally, the parameter identification experiment is carried out on the actual motor with known parameters. The test data show that the maximum error of motor parameter identification is 2.5%. The experimental results show that the preliminary simulation and experimental results verify the feasibility and accuracy of the proposed identification method. This indicates that this paper's permanent magnet synchronous motor parameter identification method has a certain practical value.
{"title":"Research on parameter Identification method of permanent magnet synchronous motor","authors":"Fei Li, Jialong Yue, Xueying Ma, Lihao Cheng","doi":"10.1109/ICMSP55950.2022.9859100","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859100","url":null,"abstract":"Rotary steerable system in directional drilling is considered the development trend of modern technology. A permanent magnet synchronous motor is used as an activation module in the rotary steerable system. However, the downhole environment is complex, and there are unknown disturbances, which puts higher requirements accurate motor control in directional drilling. Thus, it is essential to acquire precise measurements of motor parameters. This paper proposes a parameter identification method for a permanent magnet synchronous motor. Firstly, the resistance, DQ axis inductance, and flux linkage identification of permanent magnet synchronous motor are theoretically analyzed, and formulas are derived. Then the resistance, inductance, and flux linkage of the motor are simulated and analyzed by Simulink. The simulation results show that the maximum error of the parameter identification method is 2.25%; Finally, the parameter identification experiment is carried out on the actual motor with known parameters. The test data show that the maximum error of motor parameter identification is 2.5%. The experimental results show that the preliminary simulation and experimental results verify the feasibility and accuracy of the proposed identification method. This indicates that this paper's permanent magnet synchronous motor parameter identification method has a certain practical value.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"98 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133007901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859172
Jianbo Jia, Lingzhi Li, Fei Li
The traditional attitude measurement algorithm is accompanied by the high measurement cost of the attitude sensor while drilling, the difficulty of data acquisition, and the strong interference of the test environment during the testing process. This paper proposes a virtual six-axis attitude sensor while drilling. Based on the MATLAB platform as the host computer and the National Instruments (NI) data acquisition card as the lower computer, this paper realizes the design of the virtual measurement-while-drilling attitude sensor. MATLAB GUI was used to design the system interface, the callback function was used to link the attitude inversion algorithm for data calculation, the computer interface was connected to the data acquisition card to complete the data output, finally, a hardware-in-the-loop (HIL) system was formed. The system can be used to preliminarily verify the attitude correction algorithm of down-hole drilling tools, provide a theoretical basis for its compensation scheme, and reduce problems such as excessive cost in the process of instrument development by simulating the working environment. The test results show that the output data error of the designed virtual-while-drilling attitude sensor is less than 0.4% and has high accuracy.
{"title":"Virtual while-drilling Direction and Inclination (D&I) sensor","authors":"Jianbo Jia, Lingzhi Li, Fei Li","doi":"10.1109/ICMSP55950.2022.9859172","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859172","url":null,"abstract":"The traditional attitude measurement algorithm is accompanied by the high measurement cost of the attitude sensor while drilling, the difficulty of data acquisition, and the strong interference of the test environment during the testing process. This paper proposes a virtual six-axis attitude sensor while drilling. Based on the MATLAB platform as the host computer and the National Instruments (NI) data acquisition card as the lower computer, this paper realizes the design of the virtual measurement-while-drilling attitude sensor. MATLAB GUI was used to design the system interface, the callback function was used to link the attitude inversion algorithm for data calculation, the computer interface was connected to the data acquisition card to complete the data output, finally, a hardware-in-the-loop (HIL) system was formed. The system can be used to preliminarily verify the attitude correction algorithm of down-hole drilling tools, provide a theoretical basis for its compensation scheme, and reduce problems such as excessive cost in the process of instrument development by simulating the working environment. The test results show that the output data error of the designed virtual-while-drilling attitude sensor is less than 0.4% and has high accuracy.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115478598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859048
Yang Cui, Yikai Ma, Yudong Zhang, Xi Lin, Si-bao Zhang, Tianbin Si, Changhai Zhang
Dielectric capacitors have attracted attention as energy storage devices that can achieve rapid charge and discharge. But the key to restricting its development is the low energy storage density of dielectric materials. Polyvinylidene fluoride (PVDF), as a polymer with high dielectric properties, is expected to improve the energy storage density of dielectric materials. In this work, the multilayer structure of PVDF ferroelectric polymer is designed, and the influence of the number of layers on the maximum polarization, remanent polarization, applied electric field and energy storage density of the dielectric material is studied. The final obtained double-layer PVDF obtained a discharge energy storage density of 10.6 J/cm3 and an efficiency of 49.1% at an electric field of 410 kV/mm; the three-layer PVDF obtained a discharge energy storage density of 11.0 J/cm3 and an efficiency of 37.2% at an electric field of 440 kV/mm.
{"title":"Effect of multilayer structure on energy storage characteristics of PVDF ferroelectric polymer","authors":"Yang Cui, Yikai Ma, Yudong Zhang, Xi Lin, Si-bao Zhang, Tianbin Si, Changhai Zhang","doi":"10.1109/ICMSP55950.2022.9859048","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859048","url":null,"abstract":"Dielectric capacitors have attracted attention as energy storage devices that can achieve rapid charge and discharge. But the key to restricting its development is the low energy storage density of dielectric materials. Polyvinylidene fluoride (PVDF), as a polymer with high dielectric properties, is expected to improve the energy storage density of dielectric materials. In this work, the multilayer structure of PVDF ferroelectric polymer is designed, and the influence of the number of layers on the maximum polarization, remanent polarization, applied electric field and energy storage density of the dielectric material is studied. The final obtained double-layer PVDF obtained a discharge energy storage density of 10.6 J/cm3 and an efficiency of 49.1% at an electric field of 410 kV/mm; the three-layer PVDF obtained a discharge energy storage density of 11.0 J/cm3 and an efficiency of 37.2% at an electric field of 440 kV/mm.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115678109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9858978
Wenyang Wang, Jinming Wang, Chaoqun Li
Energy detection is the most common signal detection method in cognitive radio, which can sense burst signal fast. Traditional energy detection algorithms are difficult to adapt to rapid changes in channel parameters, and it is susceptible to noise uncertainty, so that the cognitive users can not accurately estimate the noise power, detection performance is somewhat limited. In this article, a hybrid energy detection algorithm-unfold window energy detector (UWED) is proposed on the basis of energy detector and energy ration detector. This algorithm not only takes into account the impact of noise uncertainty on system performance, but also effectively overcomes the problems of perceptual failure and large computation in traditional energy detectors. The simulation results show that the unfold window energy detection algorithm can effectively improve the signal detection performance of the application system.
{"title":"A Signal Detection Method Based on Hybrid Energy Detection","authors":"Wenyang Wang, Jinming Wang, Chaoqun Li","doi":"10.1109/ICMSP55950.2022.9858978","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9858978","url":null,"abstract":"Energy detection is the most common signal detection method in cognitive radio, which can sense burst signal fast. Traditional energy detection algorithms are difficult to adapt to rapid changes in channel parameters, and it is susceptible to noise uncertainty, so that the cognitive users can not accurately estimate the noise power, detection performance is somewhat limited. In this article, a hybrid energy detection algorithm-unfold window energy detector (UWED) is proposed on the basis of energy detector and energy ration detector. This algorithm not only takes into account the impact of noise uncertainty on system performance, but also effectively overcomes the problems of perceptual failure and large computation in traditional energy detectors. The simulation results show that the unfold window energy detection algorithm can effectively improve the signal detection performance of the application system.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115883341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859031
Shengjie Huang, Qizhi Zhang
In order to improve the stator flux observation performance of permanent magnet synchronous motor (PMSM) with DIRECT Torque Control (DTC), a stator flux sliding mode observer is proposed based on the concept of effective flux. The stator current and effective flux in the stator stationary coordinate system are taken as state variables to construct the corresponding sliding mode observer. The stator flux is calculated according to the observed effective flux. Experimental results show that the proposed observer can obtain more accurate stator flux observations than the open-loop observer. The proposed observer has strong robust suppression ability to the variation of motor inductance.
{"title":"Stator Flux Sliding Mode Observer of Permanent Magnet Synchronous Motor Based on Effective Flux","authors":"Shengjie Huang, Qizhi Zhang","doi":"10.1109/ICMSP55950.2022.9859031","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859031","url":null,"abstract":"In order to improve the stator flux observation performance of permanent magnet synchronous motor (PMSM) with DIRECT Torque Control (DTC), a stator flux sliding mode observer is proposed based on the concept of effective flux. The stator current and effective flux in the stator stationary coordinate system are taken as state variables to construct the corresponding sliding mode observer. The stator flux is calculated according to the observed effective flux. Experimental results show that the proposed observer can obtain more accurate stator flux observations than the open-loop observer. The proposed observer has strong robust suppression ability to the variation of motor inductance.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115055601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859019
Zhen Qian, Yan Liang, Cunbao Ma, Zhenyao Zhao, A. Yao, Jing Qu
This paper analyzes the residual sequence between the output of the fitting model and the real flight parameter data, extracts time-domain eigenvalues that can represent the characteristics of the residual sequence through the fault injection method, reduces the dimension and makes mathematical statistics of time-domain eigenvalues of the residual sequence by using Principal Component Analysis, realizes the fault identification of aircraft fly-by-wire control system, and finally classifies time-domain eigenvalues of the aircraft residual sequence by using Extreme Learning Machine, realize the fault diagnosis of aircraft fly-by-wire control system.
{"title":"Fault Identification and Diagnosis of Fly-by-wire Control System Based on Intelligent Learning","authors":"Zhen Qian, Yan Liang, Cunbao Ma, Zhenyao Zhao, A. Yao, Jing Qu","doi":"10.1109/ICMSP55950.2022.9859019","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859019","url":null,"abstract":"This paper analyzes the residual sequence between the output of the fitting model and the real flight parameter data, extracts time-domain eigenvalues that can represent the characteristics of the residual sequence through the fault injection method, reduces the dimension and makes mathematical statistics of time-domain eigenvalues of the residual sequence by using Principal Component Analysis, realizes the fault identification of aircraft fly-by-wire control system, and finally classifies time-domain eigenvalues of the aircraft residual sequence by using Extreme Learning Machine, realize the fault diagnosis of aircraft fly-by-wire control system.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121897561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859045
Yi Zhang, Feng Zhang, Xudong Yao, Jianren Tang, Ang Liu, Binren Wang
With the continuous development of the social economy and the continuous adjustment of the industrial structure, the power consumption characteristics of power users are showing a diversified development trend, and the complexity of the relationship between the power consumption characteristics of users and various social and economic factors is also increasing. To do a good job in analyzing the power consumption characteristics of users, it is necessary to make full use of shared access to process external data such as social economy, industry development, environmental protection energy consumption, and industrial and commercial taxation. This paper innovatively uses blockchain technology to incorporate these external data into the analysis of regional electricity user characteristics, which has the characteristics of decentralization and high security. At the same time, the introduction of multiple factors also significantly improves the accuracy of electricity consumption characteristics analysis. This article introduces the blockchain technology and the detailed process introduced in the analysis of the power consumption characteristics. At the same time, the security risk of the system operation being attacked is considered, which provides a new idea for the analysis of the power consumption characteristics.
{"title":"Research of blockchain technology in the analysis of user power consumption characteristics","authors":"Yi Zhang, Feng Zhang, Xudong Yao, Jianren Tang, Ang Liu, Binren Wang","doi":"10.1109/ICMSP55950.2022.9859045","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859045","url":null,"abstract":"With the continuous development of the social economy and the continuous adjustment of the industrial structure, the power consumption characteristics of power users are showing a diversified development trend, and the complexity of the relationship between the power consumption characteristics of users and various social and economic factors is also increasing. To do a good job in analyzing the power consumption characteristics of users, it is necessary to make full use of shared access to process external data such as social economy, industry development, environmental protection energy consumption, and industrial and commercial taxation. This paper innovatively uses blockchain technology to incorporate these external data into the analysis of regional electricity user characteristics, which has the characteristics of decentralization and high security. At the same time, the introduction of multiple factors also significantly improves the accuracy of electricity consumption characteristics analysis. This article introduces the blockchain technology and the detailed process introduced in the analysis of the power consumption characteristics. At the same time, the security risk of the system operation being attacked is considered, which provides a new idea for the analysis of the power consumption characteristics.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124484561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859008
Piao Guo, Yi Gao
Accurate measurement of attitude parameters (inclination angle I, tool face angle T, azimuth angle A) of downhole tools is one of the key technologies in the whole guided drilling process. Improving the measurement accuracy of attitude parameters can shorten the drilling cycle and reduce the drilling risk. Based on the existing drilling tool attitude measurement theory, this paper proposes a design scheme of drilling tool attitude data acquisition and processing system based on ARM. The system takes Samsung Exynos4412 processor as the core controller, co-ordinates the control between various functional modules, completes the acquisition, processing and calculation of attitude angles such as I, A and T, and replaces the traditional scheme of ‘ PC + data acquisition card’.
{"title":"ARM-based attitude measurement system design of guided drilling tool","authors":"Piao Guo, Yi Gao","doi":"10.1109/ICMSP55950.2022.9859008","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859008","url":null,"abstract":"Accurate measurement of attitude parameters (inclination angle I, tool face angle T, azimuth angle A) of downhole tools is one of the key technologies in the whole guided drilling process. Improving the measurement accuracy of attitude parameters can shorten the drilling cycle and reduce the drilling risk. Based on the existing drilling tool attitude measurement theory, this paper proposes a design scheme of drilling tool attitude data acquisition and processing system based on ARM. The system takes Samsung Exynos4412 processor as the core controller, co-ordinates the control between various functional modules, completes the acquisition, processing and calculation of attitude angles such as I, A and T, and replaces the traditional scheme of ‘ PC + data acquisition card’.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125782985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-08DOI: 10.1109/ICMSP55950.2022.9859211
Yutu Liang, Jian Zhang, Zhan Shi, WenJuan Liang, Xingnan Li
In recent years, with the development of broadband communication technology, the bandwidth of voice communication is no longer a problem in the field of wired communication, but in the field of wireless communication, bandwidth is a precious resource. In the case of strict transmission bit rate constraints, low-rate speech coding is of great significance. As a low-rate speech coding algorithm, the MELP algorithm has improved the LPC-10 coding scheme, and introduced mixed excitation, aperiodic pulse, Fourier series, pulse discrete filtering and adaptive spectral filtering. A relatively natural voice quality is achieved at a rate of s. The calculation load of the algorithm is small, and it has strong toughness to severe background noise, and can be transplanted into DSP system very well. This paper firstly introduces the current situation of low-rate speech coding and compares the advantages and disadvantages of several main speech coding algorithms. On this basis, the research is carried out, some formulas are deduced theoretically, and the simulation analysis is carried out under MATLAB7.0. In this paper, the MELP algorithm is improved so that its voice quality can quickly meet the needs of the future large-scale communication system development.
{"title":"Research on Coding and Enhancement Algorithm for Very Low-Rate Speech Compression of Beidou Short Message","authors":"Yutu Liang, Jian Zhang, Zhan Shi, WenJuan Liang, Xingnan Li","doi":"10.1109/ICMSP55950.2022.9859211","DOIUrl":"https://doi.org/10.1109/ICMSP55950.2022.9859211","url":null,"abstract":"In recent years, with the development of broadband communication technology, the bandwidth of voice communication is no longer a problem in the field of wired communication, but in the field of wireless communication, bandwidth is a precious resource. In the case of strict transmission bit rate constraints, low-rate speech coding is of great significance. As a low-rate speech coding algorithm, the MELP algorithm has improved the LPC-10 coding scheme, and introduced mixed excitation, aperiodic pulse, Fourier series, pulse discrete filtering and adaptive spectral filtering. A relatively natural voice quality is achieved at a rate of s. The calculation load of the algorithm is small, and it has strong toughness to severe background noise, and can be transplanted into DSP system very well. This paper firstly introduces the current situation of low-rate speech coding and compares the advantages and disadvantages of several main speech coding algorithms. On this basis, the research is carried out, some formulas are deduced theoretically, and the simulation analysis is carried out under MATLAB7.0. In this paper, the MELP algorithm is improved so that its voice quality can quickly meet the needs of the future large-scale communication system development.","PeriodicalId":114259,"journal":{"name":"2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125074511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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