Pub Date : 2019-03-07DOI: 10.1109/SPIN.2019.8711658
G. Ioannakis, F. Arnaoutoglou, A. Koutsoudis, C. Chamzas
3D model texture-based segmentation using multispectral imagery to define its construction materials is addressed within the scope of this work. An end-to-end pipeline is proposed to digitize a real-world object, construct a spatial consistent multispectral texture map and to identify materials on its surface. A multispectral camera capable of capturing ultraviolet to near infrared imagery is used to create image sequences for its Structure-from-Motion based 3D reconstruction. We utilize computational geometry techniques to create a spatial-consistent texture based on ultraviolet to near infrared imagery. Various supervised learning approaches are utilized and evaluated on the identification of materials on a 3D model's surface. Experimental results are promising and reveal its capabilities in the study of 3D digitized models.
{"title":"Exploiting Supervised Learning for 3D Model Semantic Segmentation Using Multispectral Data","authors":"G. Ioannakis, F. Arnaoutoglou, A. Koutsoudis, C. Chamzas","doi":"10.1109/SPIN.2019.8711658","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711658","url":null,"abstract":"3D model texture-based segmentation using multispectral imagery to define its construction materials is addressed within the scope of this work. An end-to-end pipeline is proposed to digitize a real-world object, construct a spatial consistent multispectral texture map and to identify materials on its surface. A multispectral camera capable of capturing ultraviolet to near infrared imagery is used to create image sequences for its Structure-from-Motion based 3D reconstruction. We utilize computational geometry techniques to create a spatial-consistent texture based on ultraviolet to near infrared imagery. Various supervised learning approaches are utilized and evaluated on the identification of materials on a 3D model's surface. Experimental results are promising and reveal its capabilities in the study of 3D digitized models.","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116699541","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 : 2019-03-07DOI: 10.1109/SPIN.2019.8711770
Muhammed Suhail Illikkal, J. N. Tripathi, H. Shrimali
This paper presents an analysis of jitter due to various deterministic noise sources in a CMOS inverter. The results obtained from the semi-analytical jitter estimation approach presented in the paper are compared with the results obtained from full SPICE based simulations. For the estimation of jitter, EMPSIJ method [1] is used in the paper. The paper also discusses the sensitivity of various noise paths on jitter.
{"title":"Analysing the Impact of Various Deterministic Noise Sources on Jitter in a CMOS Inverter","authors":"Muhammed Suhail Illikkal, J. N. Tripathi, H. Shrimali","doi":"10.1109/SPIN.2019.8711770","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711770","url":null,"abstract":"This paper presents an analysis of jitter due to various deterministic noise sources in a CMOS inverter. The results obtained from the semi-analytical jitter estimation approach presented in the paper are compared with the results obtained from full SPICE based simulations. For the estimation of jitter, EMPSIJ method [1] is used in the paper. The paper also discusses the sensitivity of various noise paths on jitter.","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125643926","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 : 2019-03-07DOI: 10.1109/SPIN.2019.8711696
Jyoti Dabass, Shaveta Arora, R. Vig, M. Hanmandlu
Mortality rate because of breast cancer diminishes to a large extent if the categorization of breast lesions as malignant or benign is done properly. But this process is quite complicated owing to erroneous detection of noise pixels as false positives. It can be reduced by proper enhancement of the features of the mammogram giving an indication of cancer. In this paper, contrast limited adaptive histogram equalization (CLAHE) and entropy-based intuitionistic fuzzy method are anticipated for improving the contrast of digital mammogram images. To validate the efficacy of the proposed algorithm over type II fuzzy set-based techniques, subjective, quantitative and visual evaluation is done on publicly available MIAS database. Experimental results prove that the proposed technique gives better visual quality. It provides high values of subjective and quantitative metrics compared to several states of art algorithms.
{"title":"Mammogram Image Enhancement Using Entropy and CLAHE Based Intuitionistic Fuzzy Method","authors":"Jyoti Dabass, Shaveta Arora, R. Vig, M. Hanmandlu","doi":"10.1109/SPIN.2019.8711696","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711696","url":null,"abstract":"Mortality rate because of breast cancer diminishes to a large extent if the categorization of breast lesions as malignant or benign is done properly. But this process is quite complicated owing to erroneous detection of noise pixels as false positives. It can be reduced by proper enhancement of the features of the mammogram giving an indication of cancer. In this paper, contrast limited adaptive histogram equalization (CLAHE) and entropy-based intuitionistic fuzzy method are anticipated for improving the contrast of digital mammogram images. To validate the efficacy of the proposed algorithm over type II fuzzy set-based techniques, subjective, quantitative and visual evaluation is done on publicly available MIAS database. Experimental results prove that the proposed technique gives better visual quality. It provides high values of subjective and quantitative metrics compared to several states of art algorithms.","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129008236","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 : 2019-03-07DOI: 10.1109/SPIN.2019.8711741
A. Singh, V. K. Srivastava
During the last two decades, significant progresses have been made on advancing potential DNA sequencing techniques that generate huge amount of genomic data. Consequently, a great deal of research is being focused on investigating these data using mathematical and computational tools. Short time discrete Fourier transform (STDFT) is often used for spectral analysis of genomic signals that further help in retrieving useful information of molecular biology such as locating protein coding regions i.e. exons in a eukaryotic genome. However, identification accuracy of STDFT based exon prediction technique is highly influenced by the background noise present in its spectrum which sometimes masks the distinctive period-3 feature of protein-coding regions. Selection of proper window function play vital role in background noise reduction and therefore it is important to evaluate the performance of different window functions for exon predictions. Earlier, Voss mapping is used by researchers to test the window performances which is computationally costly and less informative. In this paper, performance of five important window functions is tested on different genes using paired numeric (PN) mapping scheme which is comparatively more advanced and computationally efficient than Voss mapping. Results are compared in terms of two parameters i.e. signal to noise ratio (SNR) and area under the ROC curve (AUC). It is found that the use of the Blackman window provides better prediction performance than other window functions with paired numeric mapping scheme. MATLAB 2013a is used for the simulation process.
{"title":"Performance Evaluation of Different Window Functions for STDFT Based Exon Prediction Technique Taking Paired Numeric Mapping Scheme","authors":"A. Singh, V. K. Srivastava","doi":"10.1109/SPIN.2019.8711741","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711741","url":null,"abstract":"During the last two decades, significant progresses have been made on advancing potential DNA sequencing techniques that generate huge amount of genomic data. Consequently, a great deal of research is being focused on investigating these data using mathematical and computational tools. Short time discrete Fourier transform (STDFT) is often used for spectral analysis of genomic signals that further help in retrieving useful information of molecular biology such as locating protein coding regions i.e. exons in a eukaryotic genome. However, identification accuracy of STDFT based exon prediction technique is highly influenced by the background noise present in its spectrum which sometimes masks the distinctive period-3 feature of protein-coding regions. Selection of proper window function play vital role in background noise reduction and therefore it is important to evaluate the performance of different window functions for exon predictions. Earlier, Voss mapping is used by researchers to test the window performances which is computationally costly and less informative. In this paper, performance of five important window functions is tested on different genes using paired numeric (PN) mapping scheme which is comparatively more advanced and computationally efficient than Voss mapping. Results are compared in terms of two parameters i.e. signal to noise ratio (SNR) and area under the ROC curve (AUC). It is found that the use of the Blackman window provides better prediction performance than other window functions with paired numeric mapping scheme. MATLAB 2013a is used for the simulation process.","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131062844","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 : 2019-03-07DOI: 10.1109/SPIN.2019.8711742
Pilli Sathavardhana Rao, K. Balamurugan
In order to cater the needs of advanced communication systems, silicon-based RF ICs experience a fast-growing phase. In this work, the design of CMOS oscillator using an SIW (Substrate Integrated Waveguides) based LC-tank circuit is proposed. SIW based LC-tank circuit is preferred in oscillator design to get high performances such as improved phase noise and wide tuning range. In this work, the designed oscillator operates at 4.1 GHz, using the SIW structures that model passive circuit components such as inductors and capacitors. The mentioned components are designed in SIW structures that operate in the range of 2 GHz to 10 GHz. For oscillator design, a balanced differential cross-coupled pairs using NMOS and PMOS transistors are used as the forward amplifier. This design uses 45 nm CMOS technology and results are analyzed in Cadence Virtuoso. The designed SIW components act as feedback elements, which are designed in Ansys HFSS. It is observed that the phase noise of GPDK provided LC-tank is −196.4 dBc at 100 MHz whereas SIW structures based LC-tank show a better phase noise, −246.9 dBc at 100 MHz. The power consumption is 4.976 milliWatts for GPDK provided LC-tank oscillator whereas for SIW based LC-tank is just 1.371 milliWatts at 1 V supply voltage.
{"title":"High Performance Oscillator Design Using High-Q Substrate Integrated Waveguide (SIW) Resonator","authors":"Pilli Sathavardhana Rao, K. Balamurugan","doi":"10.1109/SPIN.2019.8711742","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711742","url":null,"abstract":"In order to cater the needs of advanced communication systems, silicon-based RF ICs experience a fast-growing phase. In this work, the design of CMOS oscillator using an SIW (Substrate Integrated Waveguides) based LC-tank circuit is proposed. SIW based LC-tank circuit is preferred in oscillator design to get high performances such as improved phase noise and wide tuning range. In this work, the designed oscillator operates at 4.1 GHz, using the SIW structures that model passive circuit components such as inductors and capacitors. The mentioned components are designed in SIW structures that operate in the range of 2 GHz to 10 GHz. For oscillator design, a balanced differential cross-coupled pairs using NMOS and PMOS transistors are used as the forward amplifier. This design uses 45 nm CMOS technology and results are analyzed in Cadence Virtuoso. The designed SIW components act as feedback elements, which are designed in Ansys HFSS. It is observed that the phase noise of GPDK provided LC-tank is −196.4 dBc at 100 MHz whereas SIW structures based LC-tank show a better phase noise, −246.9 dBc at 100 MHz. The power consumption is 4.976 milliWatts for GPDK provided LC-tank oscillator whereas for SIW based LC-tank is just 1.371 milliWatts at 1 V supply voltage.","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134487837","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 : 2019-03-07DOI: 10.1109/SPIN.2019.8711613
U. Singh, Yash Pal, Sunil Nagpal, Gautam Sarkar
The major obstacle that prevents the widespread growth of the electric vehicles (EV's) is the shortage of the required charging infrastructure. The DC charging stations which are used for fast charging the EV battery are very costly and thus not widespread. One of the possible solutions is to place a separate on-board charger which is capable of charging the EV battery from widely available 3-phase (faster charging) and single-phase (slower charging) grid outlets. But this additional charging unit leads to increment in mass, price and volume of the EV. Since the charging and propulsion never takes place at the same time, we can utilize the traction components already present in an EV powertrain for charging. This papers deals with a single-phase integrated charger which utilizes a nine-phase traction motor and inverter already present in an EV powertrain for charging the EV battery. The bidirectional charger can also feed the power back into the grid, the concept commonly called as vehicle to grid (V2G) operation mode. No hardware rearrangement is required in the charger for the transition between charging and driving operation mode. Moreover it can operate at the grid side with unity power factor (UPF) and without the generation of any electromagnetic torque during charging/V2G mode.
{"title":"Single-Phase On-Board Integrated Bi-Directional Charger with Power Factor Correction for an EV","authors":"U. Singh, Yash Pal, Sunil Nagpal, Gautam Sarkar","doi":"10.1109/SPIN.2019.8711613","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711613","url":null,"abstract":"The major obstacle that prevents the widespread growth of the electric vehicles (EV's) is the shortage of the required charging infrastructure. The DC charging stations which are used for fast charging the EV battery are very costly and thus not widespread. One of the possible solutions is to place a separate on-board charger which is capable of charging the EV battery from widely available 3-phase (faster charging) and single-phase (slower charging) grid outlets. But this additional charging unit leads to increment in mass, price and volume of the EV. Since the charging and propulsion never takes place at the same time, we can utilize the traction components already present in an EV powertrain for charging. This papers deals with a single-phase integrated charger which utilizes a nine-phase traction motor and inverter already present in an EV powertrain for charging the EV battery. The bidirectional charger can also feed the power back into the grid, the concept commonly called as vehicle to grid (V2G) operation mode. No hardware rearrangement is required in the charger for the transition between charging and driving operation mode. Moreover it can operate at the grid side with unity power factor (UPF) and without the generation of any electromagnetic torque during charging/V2G mode.","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"194 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132625066","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 : 2019-03-07DOI: 10.1109/SPIN.2019.8711738
Neha Singhal, Ankur Bansal
In this paper, a decode-and-forward (DF) based multiple-input-single-output (MISO) relay assisted dual-hop mixed radio frequency/free space optical (RF/FSO) communication network is considered. Each branch in RF link is assumed to experience independent and non-identically distributed (i.n.i.d.) Nakagami-$m$ fading, whereas the irradiance of FSO link is subjected to a Gamma-Gamma distribution with misalignment error (ME). In this work, maximal ratio combining (MRC) diversity scheme at the relay is investigated. The analytical expressions of the probability density function (PDF) and cumulative distribution function (CDF) are derived. Utilizing the derived channel statistics, we obtain the outage probability (OP) and average symbol error probability (SEP) expressions for the considered system.
{"title":"DF-MISO Relay Assisted RF/FSO Network with Non-Identical Nakagami-$m$ Variates","authors":"Neha Singhal, Ankur Bansal","doi":"10.1109/SPIN.2019.8711738","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711738","url":null,"abstract":"In this paper, a decode-and-forward (DF) based multiple-input-single-output (MISO) relay assisted dual-hop mixed radio frequency/free space optical (RF/FSO) communication network is considered. Each branch in RF link is assumed to experience independent and non-identically distributed (i.n.i.d.) Nakagami-$m$ fading, whereas the irradiance of FSO link is subjected to a Gamma-Gamma distribution with misalignment error (ME). In this work, maximal ratio combining (MRC) diversity scheme at the relay is investigated. The analytical expressions of the probability density function (PDF) and cumulative distribution function (CDF) are derived. Utilizing the derived channel statistics, we obtain the outage probability (OP) and average symbol error probability (SEP) expressions for the considered system.","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133769196","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 : 2019-03-07DOI: 10.1109/SPIN.2019.8711708
Aarushi, Bhavya Gupta, Tanishqa Tyagi, Naveen G. Babu
The dispersion equation for a planar traveling wave tube with anisotropically conducting open helix structure is derived. Using, the accurate boundary conditions along all the sides of the planar TWT and along the winding direction of the TWT using indicator function, the exact solution of a homogenous boundary value problem for Maxwell's equations is derived. A total number of six different complex constants are derived from a set of six boundary conditions for the proposed cold wave analysis. The presented theoretical analysis will be used in the design of the planar travelling wave tube amplifier (TWTA).
{"title":"Modified Dispersion Equation for Planar Open Tape Helix Travelling Wave Tube","authors":"Aarushi, Bhavya Gupta, Tanishqa Tyagi, Naveen G. Babu","doi":"10.1109/SPIN.2019.8711708","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711708","url":null,"abstract":"The dispersion equation for a planar traveling wave tube with anisotropically conducting open helix structure is derived. Using, the accurate boundary conditions along all the sides of the planar TWT and along the winding direction of the TWT using indicator function, the exact solution of a homogenous boundary value problem for Maxwell's equations is derived. A total number of six different complex constants are derived from a set of six boundary conditions for the proposed cold wave analysis. The presented theoretical analysis will be used in the design of the planar travelling wave tube amplifier (TWTA).","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114665330","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 : 2019-03-07DOI: 10.1109/SPIN.2019.8711637
Shakir, Manish Sharma
Maximum load devices are voltage dependent and functioning of such type of devices gets affected either supply voltage goes high or low in comparison with rated voltage of the power system. The instantaneous reactive power theory (IRPT)is an outstanding controlling approach which is used specially for voltage restoration in case of unbalanced power supply when sensitive or non-linear loads are connected at the load terminal. Application of this control scheme provides a balanced voltage which is required for healthy operation of sensitive loads used in automation industry, manufacturing plant, hospitals for patient monitoring. Moreover this paper presents mathematical modifications of voltage, current, real and reactive power. Different compensation ideas help to obtain the substitute of voltage compensation intentions like balanced power supply, pure sinusoidal waveform, reduced THD and unity power factor. Lastly, compensation approaches are implemented in a MATLAB based model of dynamic voltage restorer (DVR) which is installed in distribution part of electrical power system. Simulation results of DVR model shows the DC link voltage, Voltage at PCC, voltage at inverter input, compensated voltage and various results are presented.
{"title":"IRPT Based DVR Application for Voltage Enhancement","authors":"Shakir, Manish Sharma","doi":"10.1109/SPIN.2019.8711637","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711637","url":null,"abstract":"Maximum load devices are voltage dependent and functioning of such type of devices gets affected either supply voltage goes high or low in comparison with rated voltage of the power system. The instantaneous reactive power theory (IRPT)is an outstanding controlling approach which is used specially for voltage restoration in case of unbalanced power supply when sensitive or non-linear loads are connected at the load terminal. Application of this control scheme provides a balanced voltage which is required for healthy operation of sensitive loads used in automation industry, manufacturing plant, hospitals for patient monitoring. Moreover this paper presents mathematical modifications of voltage, current, real and reactive power. Different compensation ideas help to obtain the substitute of voltage compensation intentions like balanced power supply, pure sinusoidal waveform, reduced THD and unity power factor. Lastly, compensation approaches are implemented in a MATLAB based model of dynamic voltage restorer (DVR) which is installed in distribution part of electrical power system. Simulation results of DVR model shows the DC link voltage, Voltage at PCC, voltage at inverter input, compensated voltage and various results are presented.","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124209837","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 : 2019-03-07DOI: 10.1109/SPIN.2019.8711648
Manoj Dwivedi, A. Sharma
In this paper, a design and simulation analysis of a Hat-Feed based 0.8-meter Reflector antenna for Ku-Band SATCOM on the move (SOTM) application is presented. The antenna geometry consists of a Sub-1M ring focus reflector antenna with self-supporting dielectric hat-feed. The hat-feed was selected due to its low side-lobe and low cross polarization. The hat-feed was analyzed and optimized for a wide bandwidth (30%) operation in Ku-Band. The reflector antenna was simulated and optimized for phase center for full SATCOM Ku band (10.95GHz to 14.5GHz). A prototype has been realized and tested in Near-field for technology validation. In measurement, the antenna efficiency above 70% and cross-polarization (on-axis) better than 30dB has been achieved. The antenna radiation pattern has low side-lobes, meeting the ITU-580.6 regulatory requirement in the transmit band (13.75-14.5GHz). Also, the high gain in Receive band (10.94GHz-12.75GHz) provides sufficient gain margin for achieving good G/T system performance.
{"title":"Compact Reflector Antenna System for Ku-Band Satcom on the Move (SOTM)","authors":"Manoj Dwivedi, A. Sharma","doi":"10.1109/SPIN.2019.8711648","DOIUrl":"https://doi.org/10.1109/SPIN.2019.8711648","url":null,"abstract":"In this paper, a design and simulation analysis of a Hat-Feed based 0.8-meter Reflector antenna for Ku-Band SATCOM on the move (SOTM) application is presented. The antenna geometry consists of a Sub-1M ring focus reflector antenna with self-supporting dielectric hat-feed. The hat-feed was selected due to its low side-lobe and low cross polarization. The hat-feed was analyzed and optimized for a wide bandwidth (30%) operation in Ku-Band. The reflector antenna was simulated and optimized for phase center for full SATCOM Ku band (10.95GHz to 14.5GHz). A prototype has been realized and tested in Near-field for technology validation. In measurement, the antenna efficiency above 70% and cross-polarization (on-axis) better than 30dB has been achieved. The antenna radiation pattern has low side-lobes, meeting the ITU-580.6 regulatory requirement in the transmit band (13.75-14.5GHz). Also, the high gain in Receive band (10.94GHz-12.75GHz) provides sufficient gain margin for achieving good G/T system performance.","PeriodicalId":344030,"journal":{"name":"2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)","volume":"460 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117016053","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：