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2021 2nd China International SAR Symposium (CISS)最新文献

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State of Health Estimation for Satellite Batteries Based on the Charge Curves 基于充电曲线的卫星电池健康状态评估
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652328
Ting Wang, Jie Yang, Hu Lei, Meirong Gu, Shulin Leng, Y. Meng
{"title":"State of Health Estimation for Satellite Batteries Based on the Charge Curves","authors":"Ting Wang, Jie Yang, Hu Lei, Meirong Gu, Shulin Leng, Y. Meng","doi":"10.23919/CISS51089.2021.9652328","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652328","url":null,"abstract":"Lithium ion batteries are attracting more attention for excellent performance. State of health estimation and remaining useful life prediction are critical for optimization and safety of satellite batteries. However, there are still some drawbacks for existing characterization method due to the unachievable measurement of capacity or resistance for batteries used in satellites. This work presents a new health indicator to evaluate the degradation of satellite batteries based on the charge curve. Linear correlation between the health indicator and cycle number is found. The indication performance of health indicator extracted with charging data and discharge data is compared. And the charge capacity ratio of constant current and constant voltage process is analyzed and, similarly, a linear relationship between the ratio and cycle number is found. Then grey model and linear regression method are utilized to estimate the health state and predict the life of three batteries operated with different depth of discharge. The validation results demonstrate that our new health indicator is feasible for the health state estimation and life prediction of .satellite batteries","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129849980","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}
引用次数: 0
A Novel Design Of Grid Microstrip Monopulse Antenna 一种新型的网格微带单脉冲天线设计
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652214
Pengcheng Hua, Ming Guo, Xiaofeng Cheng, Song Qi, Yuejuan Wang, Lidong Zhang
{"title":"A Novel Design Of Grid Microstrip Monopulse Antenna","authors":"Pengcheng Hua, Ming Guo, Xiaofeng Cheng, Song Qi, Yuejuan Wang, Lidong Zhang","doi":"10.23919/CISS51089.2021.9652214","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652214","url":null,"abstract":"This letter introduces a novel design of grid microstrip monopulse antenna, and the simulation results of VSWR and radiation pattern are given respectively. The radiation element of the antenna is in the form of grid microstrip. The taper distribution of the array surface is required by the different width of the microstrip radiation element, which overcomes the shortcomings of the traditional waveguide slot antenna, such as the complexity of design and the high precision of processing, and the implementation is relatively simple. The antenna is divided into two parts, radiation array and differential feed network. The simulation results show that the antenna has a bandwidth of 2.8% (VSWR is not more than 2) and an amplitude lobe performance of - 20dB. The size of antenna array is 5.1 λ * 5.1 λ","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125571433","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}
引用次数: 0
System Design of a Sea Surface Surveillance Radar Based on Near Space Vehicle 基于近空飞行器的海面监视雷达系统设计
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652318
Jie Cui, Kaili Qin, Xin Zheng, Jiwei Tang, Mengqi Zhang
{"title":"System Design of a Sea Surface Surveillance Radar Based on Near Space Vehicle","authors":"Jie Cui, Kaili Qin, Xin Zheng, Jiwei Tang, Mengqi Zhang","doi":"10.23919/CISS51089.2021.9652318","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652318","url":null,"abstract":"This paper reports on the study of radar detection technique for near space vehicle, which aims to strengthen the property for ships and warships on the sea in the background of sea clutter. Firstly, this paper discusses the requirements of the radar system in detail, demonstrates the technical parameters of each component, and analyzes the performance of the radar system. According to the analysis, this paper puts up the main function design, which includes working frequency band, polarization mode, working system and working bandwidth of radar, etc. At the end of paper, it checks and demonstrates the main design indexes, and it gives the design conclusions.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127957824","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}
引用次数: 0
Crop Classification Using Differential-Scattering-Feature Driven CNN for Dual-Pol SAR Images 基于差分散射特征驱动CNN的双偏振SAR图像作物分类
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652236
Jiao Guo, Qing-Yuan Bai, Henghui Li
{"title":"Crop Classification Using Differential-Scattering-Feature Driven CNN for Dual-Pol SAR Images","authors":"Jiao Guo, Qing-Yuan Bai, Henghui Li","doi":"10.23919/CISS51089.2021.9652236","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652236","url":null,"abstract":"Crop type classification is one of the most important applications in Polarimetric Synthetic Aperture Radar (PolSAR) imagery. However, an increasing number of SAR systems with dual-polarization modes have been launched due to the cost and system constraints. Due to the limitation of the dual-polarization mode, there are seriously discounted characteristics for dual-pol SAR data sets, making it difficult to obtain satisfactory classification accuracy for dual-pol SAR images. Therefore, it is necessary to extract scattering characteristics which is more adapted to dual-pol SAR data sets. This paper introduces a new parameter based on the basic theory of H/α decomposition to measure the differential scattering characteristics of agricultural crops and proposes differential scattering feature driven conv-olutional neural network (CNN) for dual-pol SAR images. The experimental results show that the CNN classification methods proposed in this paper have achieved the highest classification accuracy. Compared with different feature combination inputs, the new parameter proposed in this paper can steadily improve the classification performance of the classifier, and the combination of H, α, θ, intensity features also achieves the best classification performance.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121419435","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}
引用次数: 1
Transition Graphs for SAR Image Texture Characterization: An Exploratory Study SAR图像纹理表征的过渡图:探索性研究
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652337
Eduarda T. C. Chagas, Heitor S. Ramos, O. Rosso, A. Frery
{"title":"Transition Graphs for SAR Image Texture Characterization: An Exploratory Study","authors":"Eduarda T. C. Chagas, Heitor S. Ramos, O. Rosso, A. Frery","doi":"10.23919/CISS51089.2021.9652337","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652337","url":null,"abstract":"We investigate the use of ordinal pattern transition graphs in the characterization of PolSAR image textures. Chagas et al. [4] proposed WATG, a transition graph analysis which includes the amplitude information of texture samples in the graph edges. This approach led to good results in the characterization and classification of data from urban, oceanic, and vegetation regions. In this work, we study how this approach behaves when considering the three intensity channels of PolSAR data, and its behavior when the samples are not homogeneous.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127225880","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}
引用次数: 0
Research on the Scattering of Vehicles for the Anti-collision Radar Dynamic Measurement System 防撞雷达动态测量系统中车辆散射的研究
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652362
Zhijie Xie, Jieshu Jia, Yuan Zhang, Qiping Chen
{"title":"Research on the Scattering of Vehicles for the Anti-collision Radar Dynamic Measurement System","authors":"Zhijie Xie, Jieshu Jia, Yuan Zhang, Qiping Chen","doi":"10.23919/CISS51089.2021.9652362","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652362","url":null,"abstract":"In this paper, a set of measured scattering data for civilian vehicle is presented. An electromagnetic scattering measurement system was built in the microwave anechoic chamber to obetain the scattering data for civilian vehicles. The two dimensional radar image was learnt based on the frequency and aspect sweeping data obtained from measurement. The scattering centers of the radar image was extracted by the CLEAN algorithm. Then the vehicle motion model in typical road scene such as vehicle meeting and veheicle following was analysied. The dynamic evolution of scattering centers during the road scene was studied. And the scattering center model of civilian vehicle during the road scene is applied in the anti-collision radar dynamic measurement system.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131961060","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}
引用次数: 0
Design and implementation of a digital receiver based on spaceborne SAR subsystem 基于星载SAR分系统的数字接收机设计与实现
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652321
Yu Huang, Yihuan Pang, Shangrong Ouyang, Bo Zhang
{"title":"Design and implementation of a digital receiver based on spaceborne SAR subsystem","authors":"Yu Huang, Yihuan Pang, Shangrong Ouyang, Bo Zhang","doi":"10.23919/CISS51089.2021.9652321","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652321","url":null,"abstract":"This paper proposes that a design and implementation of digital receiver based on spaceborne synthetic aperture radar (SAR) subsystem. This receiver can conduct block adaptive quantization (BAQ) compression on the received echo signal, and select the block size of BAQ compression and update the BAQ compression code table based on the ground annotation information, so as to improve the imaging quality more effectively and flexibly. In addition, it can update the field programmable gate array (FPGA) program on-orbit by update data on the ground, and correct and maintain the FPGA program saved in FLASH on-orbit, which can effectively resist single event upset (SEU) and improve the reliability of this receiver.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134467644","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}
引用次数: 1
A Parameterized Effectiveness Evaluation Method for Remote Sensing Satellite Constellation 一种参数化遥感卫星星座效能评估方法
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652379
Boxiang Zhang, Sili Wu, Hui Wang, Shichao Zheng
{"title":"A Parameterized Effectiveness Evaluation Method for Remote Sensing Satellite Constellation","authors":"Boxiang Zhang, Sili Wu, Hui Wang, Shichao Zheng","doi":"10.23919/CISS51089.2021.9652379","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652379","url":null,"abstract":"The main factors to measure the performance of imaging remote sensing satellites are the width and resolution of surveying and mapping. However, evaluating the application capability of a single satellite is different from its effective benefits in the space-based observing system constellation. It is necessary to form a comprehensive evaluation of observation characteristics and coverage characteristics between the satellites and improve the expected value of the new satellites in the existing system to achieve the best comprehensive observation capabilities. This paper proposes two parameters, the comprehensive information value of the remote sensing satellite and the difference value of the remote sensing satellite constellation, to realize the parameterized evaluation, and to judge the effectiveness of the simulation network model.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132469402","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}
引用次数: 0
A Space Millimeter Wave Wireless Energy Transmission System 空间毫米波无线能量传输系统
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652351
Aiwei Yang, Jianyu Lan, Wei Xie, M. Dong, Chen-Tai Xia, Xiaobin He
{"title":"A Space Millimeter Wave Wireless Energy Transmission System","authors":"Aiwei Yang, Jianyu Lan, Wei Xie, M. Dong, Chen-Tai Xia, Xiaobin He","doi":"10.23919/CISS51089.2021.9652351","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652351","url":null,"abstract":"The traditional microwave power transmission is based on S-band and C-band microwave, and its frequency is generally lower than 8 GHz. Therefore, the power transmission system is bulky. In this paper, a space millimeter wave wireless energy transmission system is proposed, which uses Ka band millimeter wave for wireless energy transmission. Compared with the traditional microwave power transmission system, the frequency is up to 35GHz. The antenna array has the advantages of small volume, long transmission distance and high aspect ratio energy transmission.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133461280","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}
引用次数: 0
Design of Ka band High Gain Spaceborne Phased Antenna Array Ka波段高增益星载相控阵设计
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652364
Sheng Ye, Xianwen Xu, Xing Su, Tianle Zhang, Lina Zhang, Shangrong Ouyang
{"title":"Design of Ka band High Gain Spaceborne Phased Antenna Array","authors":"Sheng Ye, Xianwen Xu, Xing Su, Tianle Zhang, Lina Zhang, Shangrong Ouyang","doi":"10.23919/CISS51089.2021.9652364","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652364","url":null,"abstract":"Coping with the requirements of high performance spaceborne phased antenna array in SAR system, a Ka band active phased antenna array with all-in-one design is provided in this paper. The radiating element adopts waveguide slot antenna where the slots are open in the narrow walls without inclines, the antenna has the advantage of high gain and well impedance matching. The calibration network and the feed network are all realized in waveguide forms. For the calibration network, an extra layer is added on the waveguide transmission lines, so as to absorb the unwanted powers from the output ports due to the mutual coupling between channels, by which the channel's consistency is improved. For the feed network, the magic T structures are adopted in the power dividers to decrease the coupling between channels. The calibration network and the feed network are all integrated at the back of the antenna, and fabricated using an all-in-one method. The antenna array has a high gain of 45 dBi, it also has a compact structure and a low profile, which make it very suitable in satellite radar applications.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126967325","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}
引用次数: 0
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