发布求助
文献互助 智能选刊 最新文献

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

筛选
英文 中文
Coordinate Conversions and Deviation Analysis in Multi-source Data Fusion 多源数据融合中的坐标转换与偏差分析
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652314
Tingyao Xie, Zhenhua Kuai, Xi Ye, Lele Zhu, K. Guo, Shuhai Shi
{"title":"Coordinate Conversions and Deviation Analysis in Multi-source Data Fusion","authors":"Tingyao Xie, Zhenhua Kuai, Xi Ye, Lele Zhu, K. Guo, Shuhai Shi","doi":"10.23919/CISS51089.2021.9652314","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652314","url":null,"abstract":"Coordinate transformation is widely used in the field of multi-source data fusion and affects final data accuracy. In order to establish the propagation model of measured deviation in the coordinate system conversion process in the process of multi-source data fusion using multiple sensor data, the deviation transfer model is mainly explained from two aspects: the conversion of sensor measurement data between different coordinate systems and the transfer process of measured deviation between coordinate systems. Finally, summarize and analyze the relationship between the factors affecting the measured deviation transmission.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"2 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":"115179770","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
Development of an X-band High-order Frequency Mutiplier x波段高阶倍频器的研制
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652372
Xiaowei Shen, Jingjing Yang, Hongying Zhang, Ning Hua, Liang Zhang
{"title":"Development of an X-band High-order Frequency Mutiplier","authors":"Xiaowei Shen, Jingjing Yang, Hongying Zhang, Ning Hua, Liang Zhang","doi":"10.23919/CISS51089.2021.9652372","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652372","url":null,"abstract":"Frequency multiplier, which is the core of the frequency synthesis device can reduce the frequency of vibration, extend frequency band and improve working stability. In this paper, a design of a X-band high-order frequency multiplier is presented. The frequency multiplier has the dimensions of 55mm×50mm×16mm with a weight of 100g.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"57 2 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":"116431077","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 micro-phased array antenna control system 微相控阵天线控制系统设计
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652222
Xiaolei Li, Lina Zhang, Li-guo Cheng, Jianhui Zhu, Jiatong Wu
{"title":"Design of micro-phased array antenna control system","authors":"Xiaolei Li, Lina Zhang, Li-guo Cheng, Jianhui Zhu, Jiatong Wu","doi":"10.23919/CISS51089.2021.9652222","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652222","url":null,"abstract":"Micro-Nano and intelligent satellite products are the future development direction. As an important part of satellite products, the digital phased array antenna has established the satellite-ground data receiving and receiving channel, and the research of micro phased array antenna has become the key to design the control system of micro digital phased array antenna. In this paper, the digital phased array antenna control system is designed based on the core of DW8051 single chip microcomputer embedded in SRAM FPGA. At the same time, the anti-fuse FPGA is used for read-refresh design to correct the single particle flip error of SRAM FPGA. The timing control of T component, logic control of antenna array, remote control of power supply and other functions are completed, and the design of micro-digital phased array day control system is realized.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"6 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":"125134801","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 An Ultra-wideband Miniaturized Conformal Antenna 一种超宽带小型化共形天线的设计
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652292
Xunxun Lu, Zhi-Jun Wang, Chao Liu, X. Xuan, Tao Zhang
{"title":"Design of An Ultra-wideband Miniaturized Conformal Antenna","authors":"Xunxun Lu, Zhi-Jun Wang, Chao Liu, X. Xuan, Tao Zhang","doi":"10.23919/CISS51089.2021.9652292","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652292","url":null,"abstract":"The research of conformal antenna has increasingly become a major focus of modern antennas. In this paper, an ultra-wideband miniaturized conformal antenna is proposed. The proposed antenna consists of a coaxial-to-waveguide broadband transition structure and two identical slots on the sidewall of the traditional ridged waveguide structure. By adjusting the coaxial to waveguide transition structure and slots on the side wall of the waveguide, the conformal antenna can not only achieve good matching in a certain bandwidth, but also achieve miniaturization. The proposed antenna is simulated and optimized by using electromagnetic simulation software HFSS. The results show that in the 2GHz -18GHz, the VSWR is less than 2.5, the maximum gain is greater than 5dBi, and the pattern is stable and has no split lobes within 30 degrees.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"10 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":"114291918","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
Accurate Elimination Method of 3-D Acceleration for Highly Squinted TOPS SAR with Curved Trajectory 高斜视曲面轨迹TOPS SAR三维加速度精确消除方法
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652249
Gang Zhang, Ya Liu, Qingqing Li, Yi Liang
{"title":"Accurate Elimination Method of 3-D Acceleration for Highly Squinted TOPS SAR with Curved Trajectory","authors":"Gang Zhang, Ya Liu, Qingqing Li, Yi Liang","doi":"10.23919/CISS51089.2021.9652249","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652249","url":null,"abstract":"When terrain observation by progressive scans synthetic aperture radar (TOPS SAR) system is mounted on a maneuvering platform, 3-D acceleration introduces envelope error and phase error into the complicated full aperture echo, which makes TOPS SAR image defocused. To solve this problem, a pre-processing is firstly performed to eliminate the spatially invariant envelope error of 3-D acceleration. Subsequently, a wavenumber-domain keystone transform is constructed to equalize the spatially variant linear Doppler phase. Finally, a wavenumber-domain resampling is adopted to equalize the higher-order Doppler phase, including spatial variance of Doppler rate and the azimuth-dependent phase error introduced by 3-D acceleration. Point target simulation shows that the proposed method can handle curved trajectory in highly squinted TOPS SAR geometry.","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":"117349375","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
Band-stop Filter with Spoof Surface Plasmon Waveguide as Main Transmission Line 以欺骗表面等离子体波导为主传输线的带阻滤波器
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652325
Huifeng Shang, Yong Zhao, Ning Hua, Zhen Yang, Junrheng Zhao, Ting Tang
{"title":"Band-stop Filter with Spoof Surface Plasmon Waveguide as Main Transmission Line","authors":"Huifeng Shang, Yong Zhao, Ning Hua, Zhen Yang, Junrheng Zhao, Ting Tang","doi":"10.23919/CISS51089.2021.9652325","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652325","url":null,"abstract":"In this paper, spoof surface plasmon waveguide (SSPW) which consists of metal gratings is used as a main transmission line for realizing a band-stop filter with a center frequency of 1GHz and a relative bandwidth of 40%. Two curved open truncated lines are used as resonators and mounted on the main transmission line. The Measured Sparameters of the band-stop filter agree well with the simulated ones, validating the feasibility of the design ideas. Compared to traditional microstrip filters, The length of the main part is shortened due to the slow-wave effect of the SPPs.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"135 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":"123118034","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
LFM-PC Hybrid Modulated Radar Signal Optimization Method Based on Alternating Direction Method of Multiplier 基于乘法器交变方向法的LFM-PC混合调制雷达信号优化方法
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652220
Yuying Wang, Jindong Zhang, Shiyi Li, Xiaoyan Qiu, Jiachen Zhao
{"title":"LFM-PC Hybrid Modulated Radar Signal Optimization Method Based on Alternating Direction Method of Multiplier","authors":"Yuying Wang, Jindong Zhang, Shiyi Li, Xiaoyan Qiu, Jiachen Zhao","doi":"10.23919/CISS51089.2021.9652220","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652220","url":null,"abstract":"Aiming at the Doppler sensitivity problem of phase coded (PC) signals in the application of high-speed platforms and high-speed target detection, a wide Doppler tolerance signal based on hybrid modulation of Linear Frequency Modulation (LFM) and PC signals is studied. In this paper, the ambiguity function of the LFM-PC signal is derived, and the corresponding optimization model based on minimum integral normalized sidelobe level within the Doppler tolerance is established. A low-complexity signal optimization method based on alternating direction method of multiplier (ADMM) is proposed. The simulation results show that the optimized LFM-PC signal obtains the lower normalized sidelobe and extended Doppler tolerance.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"23 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":"134590197","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
Online Least-Squares Learning for Monopulse Angle Tracking and Waveform Estimation 在线最小二乘学习用于单脉冲角度跟踪和波形估计
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652262
Chunlei Zhao, Zhiwei He, Ming Fang, Shoujiang Yu, Yifan Guo
{"title":"Online Least-Squares Learning for Monopulse Angle Tracking and Waveform Estimation","authors":"Chunlei Zhao, Zhiwei He, Ming Fang, Shoujiang Yu, Yifan Guo","doi":"10.23919/CISS51089.2021.9652262","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652262","url":null,"abstract":"Monopulse technique is the most widely-adopted method for angle estimation in radar systems, whereas performance improvement is required. To that end, a monopulse angle tracking algorithm named online least-squares learning (OLSL), which can also provide waveform estimation, is proposed in this paper. By establishing a least-squares based joint optimization problem of the target angle and the waveform, OLSL fully exploits the previous data for performance improvement. The estimate is updated in an online manner for acceleration. The memory scheme is further introduced to avoid loss of accuracy in the case of time-varying angles. Compared to conventional mono-pulse estimation, OLSL only requires 4 additional real-number calculations (2 additions and 2 multiplications) and the storage of 2 real-numbers, but enjoys remarkably improved accuracy and robustness against outliers. Moreover, the proposed algorithm can be simply applied to 2D angle estimation, and is compatible with various existing amplitude-comparison monopulse methods. Simulation results verify its effectiveness and superiority.","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":"122162700","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
Static Analysis and Topology Optimization of Satellites Deployment Mechanism Hinges 卫星展开机构铰链静力分析与拓扑优化
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652205
Yingnan Yuan, Hui Wang
{"title":"Static Analysis and Topology Optimization of Satellites Deployment Mechanism Hinges","authors":"Yingnan Yuan, Hui Wang","doi":"10.23919/CISS51089.2021.9652205","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652205","url":null,"abstract":"In order to meet the needs of increasingly complex space missions, the size of the satellite body, large-area flexible solar arrays, large antennas, and other satellite outer large components of ground remote sensing , deep space probes and other satellite outer large components have been significantly increased compared with the past [1] – [4] . Due to the space constraints of the rocket, The large mechanism outside the cabin is installed in the fairing in a retracted attitude through the unfolding mechanism in the launch state. After the spacecraft enters the orbit, the large parts outside the cabin are deployed to the working state by the power source of the deployment mechanism [5] .","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"8 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":"123692217","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
Optimal Design of Pulse Repetition Frequency for SAR Imaging Using the Golden Section Method 黄金分割法SAR成像脉冲重复频率优化设计
2021 2nd China International SAR Symposium (CISS) Pub Date : 2021-11-03 DOI: 10.23919/CISS51089.2021.9652356
Yujie Liang, Ke Song, Peng Zhang, Qing Huang, Yi Liang
{"title":"Optimal Design of Pulse Repetition Frequency for SAR Imaging Using the Golden Section Method","authors":"Yujie Liang, Ke Song, Peng Zhang, Qing Huang, Yi Liang","doi":"10.23919/CISS51089.2021.9652356","DOIUrl":"https://doi.org/10.23919/CISS51089.2021.9652356","url":null,"abstract":"Pulse repetition frequency (PRF) is an essential parameter in synthetic aperture radar (SAR) systems, whose selection determines the feasibility of radar imaging directly. In the high-squint SAR imaging of maneuvering platforms, the traditional PRF design method is no longer applicable because of the complex geometry configuration. In response to the problem, an optimal design using the Golden Section Method has been proposed in this paper. After establishing a squint SAR imaging model, the azimuth spectrum of the entire scene is analyzed, and the azimuth bandwidth is obtained by the Golden Section Method. Then, the PRF is designed according to the criteria of spectrum unambiguity and time sequence constraints. Finally, the feasibility and accuracy of the PRF design method are demonstrated by simulation experiments.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"73 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":"127242545","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信