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2022 3rd China International SAR Symposium (CISS)最新文献

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Error Analysis of the Two-pass Approach in Spaceborne D-InSAR 星载D-InSAR两遍方法误差分析
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971311
Jinyi Zhang, Shichao Zheng, Yeke Tang, Sili Wu, Zhihang Chen, Hui Wang
{"title":"Error Analysis of the Two-pass Approach in Spaceborne D-InSAR","authors":"Jinyi Zhang, Shichao Zheng, Yeke Tang, Sili Wu, Zhihang Chen, Hui Wang","doi":"10.1109/CISS57580.2022.9971311","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971311","url":null,"abstract":"Spaceborne differential interferometry is a potential deformation monitoring technology. Error analysis is very important for the application and enhancement of this technology. In this paper, various errors are decomposed and classified according to the principle of mutual independence, and finally an error transfer model is established. On this basis, the interferometric phase error is decomposed in detail, which improves the problem that the predecessors did not fully consider the processing error when analyzing the phase error.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123319006","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
An Improved SAR Image Speckle Reduction Algorithm Based on 3D Block Matching 一种改进的基于三维块匹配的SAR图像散斑消减算法
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971213
Yongqi Wang, Hui Wang, Yuxuan Bie
{"title":"An Improved SAR Image Speckle Reduction Algorithm Based on 3D Block Matching","authors":"Yongqi Wang, Hui Wang, Yuxuan Bie","doi":"10.1109/CISS57580.2022.9971213","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971213","url":null,"abstract":"For any Synthetic Aperture Radar (SAR) system, obtaining high-quality images is always a prerequisite for improving the performance of SAR applications. However, since the coherent imaging mechanism is affected by speckle noise, speckle suppression is required for SAR images. Aiming at the problem of block matching (BM3D) algorithm in SAR image denoising due to the problem of block matching grouping errors, this paper uses the structural similarity index to improve the block similarity measure, and when similar blocks are selected, according to the standard normal The distribution principle is used to select the threshold value of similar blocks. Compared with several other non-local mean filtering algorithms, the experimental results show that the proposed algorithm can not only effectively suppress the speckle noise in SAR images, but also maintain certain edge information details and obtain a good denoising effect.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123661889","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
Adaptive Optimization Method of Radar Search Resources Based on Genetic Algorithm 基于遗传算法的雷达搜索资源自适应优化方法
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971335
Yachun Wan, Chaojun Sun, H. Fu, Biao Zhang, Wanhua Fan
{"title":"Adaptive Optimization Method of Radar Search Resources Based on Genetic Algorithm","authors":"Yachun Wan, Chaojun Sun, H. Fu, Biao Zhang, Wanhua Fan","doi":"10.1109/CISS57580.2022.9971335","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971335","url":null,"abstract":"In the case of limited radar resources and multiple high-speed targets penetrating at the same time, in order to make the radar can focus more resources to search for high threat targets, an adaptive optimization method of radar search resources based on genetic algorithm is proposed. Considering the influence of crossover probability and mutation probability on the algorithm, the solving steps of genetic algorithm such as coding method and genetic operation are designed. The optimal allocation of search resources among the targets is analyzed under the fitness function of expected discovery distance, and the optimal allocation of search resources among targets is analyzed under the fitness functions of expected discovery distance and expected discovery time. The simulation results show that the adaptive optimization method of radar search resources based on genetic algorithm is superior to the traditional Equal Adjustment Strategy (EAS) method under the condition of limited search resources.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128332510","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
Application and Verification of ultra-high Rate Battery Packs for Micro-nano SAR Satellites 微纳SAR卫星超高倍率电池组的应用与验证
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971322
Jin Yang, Xu-wang Hou, Naiming Chen, Juan Tian, Hai-jin Chen, Yiming Zhang
{"title":"Application and Verification of ultra-high Rate Battery Packs for Micro-nano SAR Satellites","authors":"Jin Yang, Xu-wang Hou, Naiming Chen, Juan Tian, Hai-jin Chen, Yiming Zhang","doi":"10.1109/CISS57580.2022.9971322","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971322","url":null,"abstract":"Driven by the restrictions of Low-cost, high load ratio and the multi-functional developments of SAR load, customers proposed higher requirements for light and miniaturized energy storage packs with high power characteristics. This paper introduces a light-weight and ultra-high power lithium-ion battery pack suitable for micro-nano SAR satellites, Which integrates an ultra-high-power battery module and a power charger. This battery pack can support continuous high power supply of 20C/minutes-discharge, besides automatically shutdown and unlock for power charge functions, which have been demonstrated successfully onboard for some certain small SAR satellites.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129804279","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
Absolute Phase Estimation for Spaceborne InSAR Data 星载InSAR数据的绝对相位估计
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971426
Zhao Zhang, Zheyi Jiang, HuiWang, Junyi Xu, Rui Guo
{"title":"Absolute Phase Estimation for Spaceborne InSAR Data","authors":"Zhao Zhang, Zheyi Jiang, HuiWang, Junyi Xu, Rui Guo","doi":"10.1109/CISS57580.2022.9971426","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971426","url":null,"abstract":"For interferometric synthetic aperture radar (InSAR) processing, the accuracy of absolute phase has an important impact on subsequent elevation inversion. In this paper, a novel absolute phase determination approach is proposed which includes the residual ambiguity estimation. The proposed approach is verified by the experiments with spaceborne repeat-pass InSAR data.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129233670","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
Texture Enhancement Method of Oceanic Internal Waves in SAR Images Based on Non-local Mean Filtering and Multi-scale Retinex 基于非局部均值滤波和多尺度Retinex的SAR图像海洋内波纹理增强方法
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971169
Zhenghua Chen, Hongcheng Zeng, Wei Yang, Jie Chen
{"title":"Texture Enhancement Method of Oceanic Internal Waves in SAR Images Based on Non-local Mean Filtering and Multi-scale Retinex","authors":"Zhenghua Chen, Hongcheng Zeng, Wei Yang, Jie Chen","doi":"10.1109/CISS57580.2022.9971169","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971169","url":null,"abstract":"Synthetic aperture radar (SAR) remote sensing is an important tool to observe oceanic internal waves. However, due to the imaging mechanism of the oceanic internal wave phenomenon, the texture details of oceanic internal waves in SAR images are often not obvious enough, which affects the subsequent applications. To solve this problem, a texture enhancement method of oceanic internal waves in SAR images is proposed in this paper, which is based on non-local mean (NLM) filtering and multi-scale Retinex (MSR). Firstly, the NLM filtering is performed to reduce the effect of speckle noise on texture enhancement. Then, the MSR is adopted to process the filtered SAR image to enhance the texture features of oceanic internal waves. Based on the real SAR images of the Gaofen-3 satellite, the experiment of texture feature enhancement of oceanic internal wave SAR images is carried out, and the experimental results demonstrate that the proposed method can effectively suppress the image noise and significantly enhance the internal wave texture.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129428099","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
An Improved Multi-model Particle Filter Track-Before-Detect Algorithm 一种改进的多模型粒子滤波检测前跟踪算法
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971280
Xiaoyan Ma, Dan-hua Lao, Peng Liu, Yiwei Lv, Yifan Guo, Z. Feng
{"title":"An Improved Multi-model Particle Filter Track-Before-Detect Algorithm","authors":"Xiaoyan Ma, Dan-hua Lao, Peng Liu, Yiwei Lv, Yifan Guo, Z. Feng","doi":"10.1109/CISS57580.2022.9971280","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971280","url":null,"abstract":"In the field of weak target detection and tracking, when the target maneuvers, the detection capability of the traditional Multiple-Model (MM) Particle Filter (PF) Track-Before-Detect (TBD) algorithm decreases and the calculation amount of the algorithm increases. In this paper, an improved MM-PF-TBD algorithm is proposed. By adding the Constant Acceleration (CA) model, the Coordinate Turn (CT) model with variable turning rate and the Quasi-Monte Carlo (QMC) method, the improved algorithm could achieve the detection and tracking of weak maneuvering targets. Simulation results show that the detection capacity of the improved algorithm is 15% higher than that of the traditional algorithm, and the improved algorithm has more stable performance in low Signal-to-Noise Ratio (SNR) environment.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129587219","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
Amplitude and phase error estimation and compensation technology for spaceborne SAR 星载SAR幅相误差估计与补偿技术
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971317
Shao Zelong, Qian Cheng, Ji Weiwei, Xu Xianwen, Li Chao, Ouyang Shangrong
{"title":"Amplitude and phase error estimation and compensation technology for spaceborne SAR","authors":"Shao Zelong, Qian Cheng, Ji Weiwei, Xu Xianwen, Li Chao, Ouyang Shangrong","doi":"10.1109/CISS57580.2022.9971317","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971317","url":null,"abstract":"To solve problems such as target defocus, signal distortion caused by amplitude and phase error of the spaceborne wideband SAR system, the paper proposed a new method to estimate and compensate radar signal errors. Amplitude and phase error of the X-SAR system signal were analyzed in detail which include quadratic error,periodic error and random error. To acquire these errors, phase gradient algorithm was used to estimate signal’s phase error. In addition, computer simulation experiments were conducted in the paper to verify above signal error compensates method. Meanwhile, signal generated by the real X-SAR system were presented and corrected by the method proposed in the paper. Result prove that the signal error estimate and correction method were effective,could be an useful method for spaceborne SAR signal error analysis and error compensation.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128095999","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 Constant Current and Constant Voltage Charging Circuit through MPPT Method and Its Stability Analysis MPPT法恒流恒压充电电路及其稳定性分析
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971405
Guo Luo, Jianzhi Liu, Tong Yang, Yinghua Dou, Naiming Chen
{"title":"A Constant Current and Constant Voltage Charging Circuit through MPPT Method and Its Stability Analysis","authors":"Guo Luo, Jianzhi Liu, Tong Yang, Yinghua Dou, Naiming Chen","doi":"10.1109/CISS57580.2022.9971405","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971405","url":null,"abstract":"In this paper, a constant current and constant voltage charging circuit through MPPT method, and its stability analysis is proposed. The input part is a solar cell array, the converter uses a super buck circuit, and the output is a battery pack, which constitutes an unregulated primary power bus system. Aiming at the dynamic characteristics of the solar cell output, small-signal modeling of the solar array is carried out. To convert the super buck into a more suitable output constant current source model and accomplish the design of the constant current and constant voltage circuit for the closed-loop control, the average space state method is used for modeling and the proposed circuit’s switching stability can be verified at the same time. The experimental results show that the system can accurately track the maximum power point of the solar cell array in MPPT mode, charge the battery pack with constant current or constant voltage control, and maximize energy utilization of SAR solar power system.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"65 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126410041","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
Feature Enhancement Kernel Dictionary Learning for Radar Target Recognition 雷达目标识别的特征增强核字典学习
2022 3rd China International SAR Symposium (CISS) Pub Date : 2022-11-02 DOI: 10.1109/CISS57580.2022.9971193
Zhicheng Wang, Hui Xu, Si Chen, Zhijun Zhang, M. Shi, Yesheng Gao
{"title":"Feature Enhancement Kernel Dictionary Learning for Radar Target Recognition","authors":"Zhicheng Wang, Hui Xu, Si Chen, Zhijun Zhang, M. Shi, Yesheng Gao","doi":"10.1109/CISS57580.2022.9971193","DOIUrl":"https://doi.org/10.1109/CISS57580.2022.9971193","url":null,"abstract":"Radar target recognition technology is widely used in modern society. With the improvement of radar range resolution, radar echo target and jamming background echo can be distinguished by radar high-resolution information. This paper presents a feature enhancement kernel dictionary learning (FEK-DL) method for automatic radar target recognition (ATR). In order to enhance features of images for data enhancement and noise suppression, a matrix approximation method is used for multi-structure feature extraction. Instead of using traditional linear dictionary learning method, non-linear kernel function is used to map the targets into a high-dimensional space, in order to obtain a better classification performance. The training method and optimization steps of FEK-DL are presented in this paper. We carried out the experiment based on radar dataset to demonstrate the effectiveness of the proposed classification algorithm. The experimental results show that the classification algorithm has better classification performance than some representative dictionary learning algorithms.","PeriodicalId":331510,"journal":{"name":"2022 3rd China International SAR Symposium (CISS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122482104","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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