Pub Date : 2016-08-01DOI: 10.1109/ICEICT.2016.7879649
Jianping Li, Wan Li
This article imports an improved multistage sphere decoding (IMSD) algorithm into the MMSE-PIC iterative structure and proposes a new joint iterative detecting structure in high order modulation MIMO systems. The IMSD algorithm is designed against the higher-order modulation system with lower complexity and near SD performance. The new structure replaces the MMSE liner detector with the IMSD detector in the first round iteration of original MMSE-PIC structure, which has better performance and lower sensitivity towards channel correlation.
{"title":"A new joint iterative detecting algorithm in high-order modulation MIMO systems","authors":"Jianping Li, Wan Li","doi":"10.1109/ICEICT.2016.7879649","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879649","url":null,"abstract":"This article imports an improved multistage sphere decoding (IMSD) algorithm into the MMSE-PIC iterative structure and proposes a new joint iterative detecting structure in high order modulation MIMO systems. The IMSD algorithm is designed against the higher-order modulation system with lower complexity and near SD performance. The new structure replaces the MMSE liner detector with the IMSD detector in the first round iteration of original MMSE-PIC structure, which has better performance and lower sensitivity towards channel correlation.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130063283","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 : 2016-08-01DOI: 10.1109/ICEICT.2016.7879770
Weidong Kong, Peng Li, Meng Chang, Guohui Yang
This paper designs a 3dB branch line coupler which is applied to the balanced power amplifier. By the traditional meandering method, the microstrips of the branch line coupler are bended to inside, thereby the size of the structure is reduced. The size of optimized branch line coupler is 0.18λ×0.13λ. Test results show that, in the 2.4∼2.485 GHz band, the magnitude of the straight port is consistent with that of the coupling port, and the phase difference can be 90 degree. Also, the isolation degree is greater than 15dB.
{"title":"Miniaturization design of 3dB directional coupler applied to balanced power amplifier in WLAN system","authors":"Weidong Kong, Peng Li, Meng Chang, Guohui Yang","doi":"10.1109/ICEICT.2016.7879770","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879770","url":null,"abstract":"This paper designs a 3dB branch line coupler which is applied to the balanced power amplifier. By the traditional meandering method, the microstrips of the branch line coupler are bended to inside, thereby the size of the structure is reduced. The size of optimized branch line coupler is 0.18λ×0.13λ. Test results show that, in the 2.4∼2.485 GHz band, the magnitude of the straight port is consistent with that of the coupling port, and the phase difference can be 90 degree. Also, the isolation degree is greater than 15dB.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130194959","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 : 2016-08-01DOI: 10.1109/ICEICT.2016.7879657
Lideng Xu, D. Su, Jing Nie, Nankai Wu
This paper focuses on the communication effectiveness (CE) of VHF frequency-hopping (FH) radio when threatened by the barrage jamming (BJ) in actual environment. First, a FH radio simulation model is built on the Simulink platform based on VHF FH radio's operating principle. Then, the jamming signals are quantified classified by their threat level and simulations of jamming signal from typical paths are made. Finally, emulated studies are made on effects of CE for wideband BJ and comb BJ with different threat level on different FH rate and different FH bandwidth. Also, a hardware-in-the-loop system is also built to verify the simulation results. Corresponding results are drawn.
{"title":"Impact of the barrage jamming on communication effectiveness of VHF frequency-hopping radio","authors":"Lideng Xu, D. Su, Jing Nie, Nankai Wu","doi":"10.1109/ICEICT.2016.7879657","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879657","url":null,"abstract":"This paper focuses on the communication effectiveness (CE) of VHF frequency-hopping (FH) radio when threatened by the barrage jamming (BJ) in actual environment. First, a FH radio simulation model is built on the Simulink platform based on VHF FH radio's operating principle. Then, the jamming signals are quantified classified by their threat level and simulations of jamming signal from typical paths are made. Finally, emulated studies are made on effects of CE for wideband BJ and comb BJ with different threat level on different FH rate and different FH bandwidth. Also, a hardware-in-the-loop system is also built to verify the simulation results. Corresponding results are drawn.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121989936","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 : 2016-08-01DOI: 10.1109/ICEICT.2016.7879755
Guoqing Liu, Lixia Yang, Jing Xia
In this paper, a high phase consistency six-way micro-wave power splitter is presented. The proposed structure consists of coaxial line, T structure stripline and radial line and the quarter-wavelength transformor. Coupling conductor is to solve the issue of phase consistency. In the working frequency band 5.3GHz to 5.9GHz, input return loss is less than −18.3 dB, output return loss is less than −15.3 dB, phase consistency is better than ±1 degree, and insertion loss is less then 0.2 dB.
{"title":"Design and test of the high phase consistency six-way microwave power divider","authors":"Guoqing Liu, Lixia Yang, Jing Xia","doi":"10.1109/ICEICT.2016.7879755","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879755","url":null,"abstract":"In this paper, a high phase consistency six-way micro-wave power splitter is presented. The proposed structure consists of coaxial line, T structure stripline and radial line and the quarter-wavelength transformor. Coupling conductor is to solve the issue of phase consistency. In the working frequency band 5.3GHz to 5.9GHz, input return loss is less than −18.3 dB, output return loss is less than −15.3 dB, phase consistency is better than ±1 degree, and insertion loss is less then 0.2 dB.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125512081","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 : 2016-08-01DOI: 10.1109/ICEICT.2016.7879732
Yang Bai, Hongbo Li, Yun Zhang
This paper presents a hybrid model combining AR model with Volterra series expansion that uses Ensemble Empirical Mode Decomposition as preprocessing step for predicting congestion in high-frequency spectrum. In this model, original complex spectral occupancy phenomenon is decomposed into several simpler components among which relatively stable Intrinsic Mode Functions (IMFs) are predicted by AR model and the residue with tendency is modelled by Volterra series expansion; both of AR and Volterra's coefficients are modified by RLS algorithm in a centralized way. We compared the model with stand-alone use of AR model and Volterra adaptive filters for one-step prediction and employed RMSE for performance comparison. The results have demonstrated that the hybrid model enhances the accuracy of prediction to behaviors of spectrum driven from nonlinear and non-stationary processes.
{"title":"A hybrid model for congestion prediction in HF spectrum based on ensemble empirical mode decomposition","authors":"Yang Bai, Hongbo Li, Yun Zhang","doi":"10.1109/ICEICT.2016.7879732","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879732","url":null,"abstract":"This paper presents a hybrid model combining AR model with Volterra series expansion that uses Ensemble Empirical Mode Decomposition as preprocessing step for predicting congestion in high-frequency spectrum. In this model, original complex spectral occupancy phenomenon is decomposed into several simpler components among which relatively stable Intrinsic Mode Functions (IMFs) are predicted by AR model and the residue with tendency is modelled by Volterra series expansion; both of AR and Volterra's coefficients are modified by RLS algorithm in a centralized way. We compared the model with stand-alone use of AR model and Volterra adaptive filters for one-step prediction and employed RMSE for performance comparison. The results have demonstrated that the hybrid model enhances the accuracy of prediction to behaviors of spectrum driven from nonlinear and non-stationary processes.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126353020","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 : 2016-08-01DOI: 10.1109/ICEICT.2016.7879776
Zhefei Wang, J. Fu, Qian Wang, Dan-jiang Wang, Wan Chen, Bo Lv
In this study, a wideband frequency selective radome is represented, which can absorb the microwave of KU band, and will transmit the higher frequency power. This radome is composed of two different frequency selective surfaces (FSS). The transmission window and absorbing band are realized by the principle of impedance matching. Lossless foam is used as the medium while the absorbing band is promised. Lumped resistors are chosen to absorb microwave other than ink that can reduce the complexity of process. After simulating by CST Microwave Studio 2012, the result shows that from 13.5 GHz to 17.5GHz, reflection coefficient is lower than −10dB. And the transmittivity is more than eight percent from 32 GHz to 39GHz. This radome can be applied broadly in the communication system of stealth aircraft.
本研究提出了一种宽带选频天线罩，它可以吸收KU波段的微波，并传输更高频率的功率。该天线罩由两个不同的频率选择表面(FSS)组成。传输窗口和吸收带是通过阻抗匹配原理实现的。在保证吸波带的同时，采用无损泡沫作为介质。选择集总电阻来吸收微波而不是墨水，可以减少工艺的复杂性。经过CST Microwave Studio 2012的仿真，结果表明，在13.5 GHz ~ 17.5GHz范围内，反射系数小于- 10dB。从32ghz到39GHz的传输率超过8%。该天线罩可广泛应用于隐身飞机的通信系统中。
{"title":"Analysis and design of a wideband radome with lumped resistor","authors":"Zhefei Wang, J. Fu, Qian Wang, Dan-jiang Wang, Wan Chen, Bo Lv","doi":"10.1109/ICEICT.2016.7879776","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879776","url":null,"abstract":"In this study, a wideband frequency selective radome is represented, which can absorb the microwave of KU band, and will transmit the higher frequency power. This radome is composed of two different frequency selective surfaces (FSS). The transmission window and absorbing band are realized by the principle of impedance matching. Lossless foam is used as the medium while the absorbing band is promised. Lumped resistors are chosen to absorb microwave other than ink that can reduce the complexity of process. After simulating by CST Microwave Studio 2012, the result shows that from 13.5 GHz to 17.5GHz, reflection coefficient is lower than −10dB. And the transmittivity is more than eight percent from 32 GHz to 39GHz. This radome can be applied broadly in the communication system of stealth aircraft.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128958753","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 : 2016-08-01DOI: 10.1109/ICEICT.2016.7879735
Shan Cui, Sheng Li, Hua Yan
Scattering center extraction is the key content in the study of the characteristics of radar target. In this paper, a method based on 2-D data of inverse synthetic aperture radar (ISAR) images is proposed. The wide azimuthal aperture at a single elevation is divided into subapertures, taking advantage of the sparse decomposition and basis pursuit denoising (BPDN) algorithm, the method extracts the 2-D points from different subapertures and makes vectorial resultant, meanwhile to evaluate veracity of the regenerated signal. The method maps these 2-D points to the ground plane to get the trajectory chart of scatterers, and Hough transformation can help to extract 3-D scattering centers of target. The reconstruction is realized by the simulation.
{"title":"A method of 3-D scattering center extraction based on ISAR images","authors":"Shan Cui, Sheng Li, Hua Yan","doi":"10.1109/ICEICT.2016.7879735","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879735","url":null,"abstract":"Scattering center extraction is the key content in the study of the characteristics of radar target. In this paper, a method based on 2-D data of inverse synthetic aperture radar (ISAR) images is proposed. The wide azimuthal aperture at a single elevation is divided into subapertures, taking advantage of the sparse decomposition and basis pursuit denoising (BPDN) algorithm, the method extracts the 2-D points from different subapertures and makes vectorial resultant, meanwhile to evaluate veracity of the regenerated signal. The method maps these 2-D points to the ground plane to get the trajectory chart of scatterers, and Hough transformation can help to extract 3-D scattering centers of target. The reconstruction is realized by the simulation.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133622463","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 : 2016-08-01DOI: 10.1109/ICEICT.2016.7879738
Sheng-Yuan Wu, Xiao-Kuan Zhang, Jun-Chao Yuan
The change of the target RCS with the transmission polarization mode is regular. Firstly, the polarization angle is defined to represent different transmission polarization modes; Secondly, the trajectory of target RCS varying with polarization angle of incident electromagnetic wave is pointed out to be a cosine curve by formula derivation. The simulation results show that the trajectory from formula derivation is in perfect agreement with the trajectory from simulation and the formula is proved to be correct. The regularity could be used to improve target RCS and discriminate different targets.
{"title":"Study of the regularity between the target RCS and the transmission polarization mode","authors":"Sheng-Yuan Wu, Xiao-Kuan Zhang, Jun-Chao Yuan","doi":"10.1109/ICEICT.2016.7879738","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879738","url":null,"abstract":"The change of the target RCS with the transmission polarization mode is regular. Firstly, the polarization angle is defined to represent different transmission polarization modes; Secondly, the trajectory of target RCS varying with polarization angle of incident electromagnetic wave is pointed out to be a cosine curve by formula derivation. The simulation results show that the trajectory from formula derivation is in perfect agreement with the trajectory from simulation and the formula is proved to be correct. The regularity could be used to improve target RCS and discriminate different targets.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128451646","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 : 2016-08-01DOI: 10.1109/ICEICT.2016.7879711
Duan Yong, Shen Dongliang, Yu XiangYou, Wang Yu
In order to realize the safe and efficient movement of the robot, the method of constructing the grid map with local uncertainty of a mobile robot based on Kinect sensor is proposed. The robot's working environment is divided into three parts: the free area, the obstacle area and the unknown area. Kinect sensor is used to detect each area and determine the confidence level of the obstacles. Finally, the local grid map of the robot environment is constructed. Taking the wheeled mobile robot as the experimental platform, the possibility of the proposed algorithm is verified.
{"title":"Local uncertainty grid map construction of mobile robot based on kinect sensor","authors":"Duan Yong, Shen Dongliang, Yu XiangYou, Wang Yu","doi":"10.1109/ICEICT.2016.7879711","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879711","url":null,"abstract":"In order to realize the safe and efficient movement of the robot, the method of constructing the grid map with local uncertainty of a mobile robot based on Kinect sensor is proposed. The robot's working environment is divided into three parts: the free area, the obstacle area and the unknown area. Kinect sensor is used to detect each area and determine the confidence level of the obstacles. Finally, the local grid map of the robot environment is constructed. Taking the wheeled mobile robot as the experimental platform, the possibility of the proposed algorithm is verified.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132020295","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 : 2016-08-01DOI: 10.1109/ICEICT.2016.7879668
Lin Qi, Lian Zhou, Z. Dou
Dynamic spectrum access technique brought much light to spectrum efficiency since it has been proposed, that is, in over ten years it made much progress and contribution to cognitive radio in wideband communication systems. The growing requirement of a new generation of wireless communication system for high-speed data communication and bandwidth makes the scarcity of spectrum resources an inevitable problem. With new spectrum methods and strategies coming out, more efforts have been made to this field. This article compares and analyzes recent different dynamic spectrum access methods, on basis of which we propose a modified spectrum access method to enhance spectrum efficiency. Meanwhile simulation and analysis of this method is presented at the end of this article. A new feasible spectrum access algorithm is proposed using hill climbing approach to computes the parameters of spectrum access. Then collaborative access and non-collaborative spectrum access are different in estimating the interference temperature to the primary receivers. Afterwards simulation and comparison of collaborative approach are presented as well.
{"title":"A modified dynamic spectrum access method to enhance spectrum efficiency","authors":"Lin Qi, Lian Zhou, Z. Dou","doi":"10.1109/ICEICT.2016.7879668","DOIUrl":"https://doi.org/10.1109/ICEICT.2016.7879668","url":null,"abstract":"Dynamic spectrum access technique brought much light to spectrum efficiency since it has been proposed, that is, in over ten years it made much progress and contribution to cognitive radio in wideband communication systems. The growing requirement of a new generation of wireless communication system for high-speed data communication and bandwidth makes the scarcity of spectrum resources an inevitable problem. With new spectrum methods and strategies coming out, more efforts have been made to this field. This article compares and analyzes recent different dynamic spectrum access methods, on basis of which we propose a modified spectrum access method to enhance spectrum efficiency. Meanwhile simulation and analysis of this method is presented at the end of this article. A new feasible spectrum access algorithm is proposed using hill climbing approach to computes the parameters of spectrum access. Then collaborative access and non-collaborative spectrum access are different in estimating the interference temperature to the primary receivers. Afterwards simulation and comparison of collaborative approach are presented as well.","PeriodicalId":224387,"journal":{"name":"2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132113293","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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