发布求助
文献互助 智能选刊 最新文献

2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)最新文献

筛选
英文 中文
Two calibration methods of wideband quadrature receiver mismatch errors 宽带正交接收机失配误差的两种标定方法
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984719
Luo Yongjian, Yu Genmiao, Zhang Shouliong
{"title":"Two calibration methods of wideband quadrature receiver mismatch errors","authors":"Luo Yongjian, Yu Genmiao, Zhang Shouliong","doi":"10.1109/ICR.2001.984719","DOIUrl":"https://doi.org/10.1109/ICR.2001.984719","url":null,"abstract":"The theory of digital calibration for the gain and phase imbalances between the in-phase and quadrature branches of a wideband receiver is discussed. Two novel and practical methods for the estimation of the relative amplitude and phase error function are presented, including the least squares and a modification based on the principle of Gram-Schmidt orthogonalization. Computer simulations show their effectiveness.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126090944","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
Analysis of longitudinal slots-array in rectangular wave-guide with FDTD 矩形波导纵向槽阵的时域有限差分分析
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984903
Chao Liu, B. Gao, Zheng-Hui Xue
{"title":"Analysis of longitudinal slots-array in rectangular wave-guide with FDTD","authors":"Chao Liu, B. Gao, Zheng-Hui Xue","doi":"10.1109/ICR.2001.984903","DOIUrl":"https://doi.org/10.1109/ICR.2001.984903","url":null,"abstract":"The FDTD method is used for solving the electric field in the longitudinal resonant slot of a waveguide and radiant far field pattern, and according to equivalent circuit theory, the equivalent admittance is presented. The main characteristics of this method are summarized here, and some examples are given for demonstrating the advantages.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126666515","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
High spectrum purity signal source applied in X-band radar frequency criterion generator 应用于x波段雷达频率判据发生器的高频谱纯度信号源
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984859
Yong Yumei, Z. Yuxin, Zhou Zheng-ou
{"title":"High spectrum purity signal source applied in X-band radar frequency criterion generator","authors":"Yong Yumei, Z. Yuxin, Zhou Zheng-ou","doi":"10.1109/ICR.2001.984859","DOIUrl":"https://doi.org/10.1109/ICR.2001.984859","url":null,"abstract":"A high spectrum purity DDS-PLL signal source applied in X-band radar frequency criterion generator is introduced. It's specifications list the following: output frequency range 8500 MHz/spl sim/9800 MHz; hopping step 1 kHz; hopping points 1,000,000; phase noise <-80 dBdHz@10 kHz. A novel and particular scheme is introduced, a good many mutual inconsistent factors can be satisfied simultaneously by using this method, and the specification's requirements can be achieved. The scheme is based on a DDS-PLL hybrid frequency synthesizer. The measurement results are presented. On the basis of the measurement result, the distribution characteristics of the output spectrum are analyzed.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121095181","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: 5
New methods for estimating the center frequency and bandwidth of clutter 杂波中心频率和带宽估计的新方法
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984893
Ge Fengxiang, Meng Huadong, Peng Ying-ning, Wang Xiu-tan
{"title":"New methods for estimating the center frequency and bandwidth of clutter","authors":"Ge Fengxiang, Meng Huadong, Peng Ying-ning, Wang Xiu-tan","doi":"10.1109/ICR.2001.984893","DOIUrl":"https://doi.org/10.1109/ICR.2001.984893","url":null,"abstract":"Two methods for estimating the center frequency and bandwidth, separately called centroid method (CM) and energy integration method (EIM), are proposed. A comparison of the complexity and the performance between the two methods and the general ones is presented. It is shown that the two methods are effective for short-time clutter data in practical application.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121201976","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: 3
Design of fuzzy supervised classification system for single-channel SAR images 单通道SAR图像的模糊监督分类系统设计
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984754
S. Fang, H. Wen, Mao Shiyi
{"title":"Design of fuzzy supervised classification system for single-channel SAR images","authors":"S. Fang, H. Wen, Mao Shiyi","doi":"10.1109/ICR.2001.984754","DOIUrl":"https://doi.org/10.1109/ICR.2001.984754","url":null,"abstract":"A fuzzy supervised classification system for single-channel SAR images is designed. The system mainly consists of two parts: a fuzzy supervised partitioner and a fuzzy vector quantizer both of which employ fuzzy theory. The fuzzy partitioner is the key part that determines the classification accuracy level and the fuzzy vector quantizer is appended to improve the accuracy. The use of the system includes system training, data fuzzy analysis, result display and classification accuracy estimation. The classification result is compared with GML classification result to evaluate the system's performance.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122881290","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 new method for simultaneous estimation of Doppler frequency and DOA 一种同时估计多普勒频率和方位的新方法
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984835
Xu You-gen, Liu Zhi-wen
{"title":"A new method for simultaneous estimation of Doppler frequency and DOA","authors":"Xu You-gen, Liu Zhi-wen","doi":"10.1109/ICR.2001.984835","DOIUrl":"https://doi.org/10.1109/ICR.2001.984835","url":null,"abstract":"A new method is proposed to provide the simultaneous estimation of both the Doppler frequency and the direction-of-arrival (DOA) of multiple signals received by a pulse Doppler phased array radar. Based on the concept of multiple invariance, this approach automatically pairs the Doppler frequencies and DOAs by computing them directly from the eigenvalue decomposition of a so-called signal space-time matrix (SSTM). Simulation results show that the proposed method is effective.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"45 6-7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116507964","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 novel algorithm for adaptive beamforming based on projection transformation 一种基于投影变换的自适应波束形成算法
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984775
Luo Yongjian, Zhang Tao, Z. Shouhong
{"title":"A novel algorithm for adaptive beamforming based on projection transformation","authors":"Luo Yongjian, Zhang Tao, Z. Shouhong","doi":"10.1109/ICR.2001.984775","DOIUrl":"https://doi.org/10.1109/ICR.2001.984775","url":null,"abstract":"An improved projection transformation method for enhancing the performance of the linearly constrained minimum variance beamformer is presented. The novel algorithm uses a projection operator, which is the basis vectors for the estimated signal-plus-interference subspace obtained by searching for it in the array manifold space by means of priori knowledge. The new algorithm can further reduce the computational complexity and eliminate the signal cancellation when a desired signal is contained in the correlation matrix. Moreover, the new method has a good beam pattern with lower sidelobe level and faster convergence speed in the case that there exist amplitude and phase errors and/or colored noise. The advantages are confirmed by computer simulations.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132110189","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: 4
Processing time-varying signals by a new method 一种处理时变信号的新方法
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984881
Gai Qiang, Ma Xiaojiang, Zhang Haiyong, Zou Yankun
{"title":"Processing time-varying signals by a new method","authors":"Gai Qiang, Ma Xiaojiang, Zhang Haiyong, Zou Yankun","doi":"10.1109/ICR.2001.984881","DOIUrl":"https://doi.org/10.1109/ICR.2001.984881","url":null,"abstract":"The concept of an empirical mode decomposition method with which any complicated data set can be decomposed into a finite and often small number of intrinsic mode functions (IMF) is introduced. This method is used for time-varying signal analysis and provide a better joint time-frequency resolution than other methods like the STFT, wavelet and the Wigner-Ville distribution. Then we bring forward a new principle of the local wave method and the expression of the intrinsic mode function. We also introduce our new signal decomposition method called local mean mode decomposition (LMMD) which can provide better data mean and results.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134200672","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: 9
Time sidelobe reduction technique with small S/N loss for binary-coded pulse compression 二值编码脉冲压缩小信噪比时间旁瓣降频技术
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984867
R. Sato, I. Sasase, M. Shinriki
{"title":"Time sidelobe reduction technique with small S/N loss for binary-coded pulse compression","authors":"R. Sato, I. Sasase, M. Shinriki","doi":"10.1109/ICR.2001.984867","DOIUrl":"https://doi.org/10.1109/ICR.2001.984867","url":null,"abstract":"The time sidelobe reduction technique using TSSWA (two-sample sliding window adder) twice is known to be effective for binary-coded pulse compression. The S/N loss induced by the double TSSWAs is estimated and the performance of the double TSSWAs is compared with other mismatched filter techniques in terms of the PSL (peak sidelobe level) and S/N loss. It is then shown that, when compared at the same PSL, the double TSSWAs have better S/N performance than the conventional mismatched filter. Another result introduced is the performance of the proposed technique verified by the real wave of an actual radar system. It is confirmed that the PSL of the proposed technique is lower compared with the conventional in actual environments as well as in theory.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133585210","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: 6
Quantitative testing research of surveillance radar anti-jamming performance 监视雷达抗干扰性能定量测试研究
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984668
Shen Gui-ming, Zhu Wei-hua
{"title":"Quantitative testing research of surveillance radar anti-jamming performance","authors":"Shen Gui-ming, Zhu Wei-hua","doi":"10.1109/ICR.2001.984668","DOIUrl":"https://doi.org/10.1109/ICR.2001.984668","url":null,"abstract":"The evaluation of radar anti-jamming performance has always been a difficult problem. In this paper, by analyzing the theory of SJR measurement and the influence of radar tactical performance on SJR, a quantitative testing and analytical method of radar anti-jamming performance is introduced, and SJR results of measurement are provided.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130357947","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
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：604180095
Book学术官方微信