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

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Study on the tracking characteristic to two jammers with passive monopulse seeker 被动单脉冲导引头对两种干扰机的跟踪特性研究
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984674
Xue Songtao, Yang Shaoquan
{"title":"Study on the tracking characteristic to two jammers with passive monopulse seeker","authors":"Xue Songtao, Yang Shaoquan","doi":"10.1109/ICR.2001.984674","DOIUrl":"https://doi.org/10.1109/ICR.2001.984674","url":null,"abstract":"This paper discusses the tracking characteristic to two jammers when the two jammers are present within the mainlobe of a passive monopulse seeker, including static tracking characteristic and dynamic tracking characteristic. Then, the possibility and conditions to track one of the two jammers with a passive monopulse seeker are analyzed.","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":"114798398","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 countermeasure to polarization interference for circular polarization phased array radar 圆极化相控阵雷达极化干扰的一种新型对抗方法
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984736
Zhang Hanghua, Du Zicheng
{"title":"A novel countermeasure to polarization interference for circular polarization phased array radar","authors":"Zhang Hanghua, Du Zicheng","doi":"10.1109/ICR.2001.984736","DOIUrl":"https://doi.org/10.1109/ICR.2001.984736","url":null,"abstract":"Circular polarization phased array radar is low-cost high-performance modern radar, and has an encouraging application vista. However the polarization screen cannot be adopted in this kind of radar to reduce the cross polarization jamming, and on the other hand, the generation of cross-polarized wave for a circularly polarized wave is much easier than the linear polarization case. The authors give their countermeasure to cross polarization jamming based on the analysis of its phase shift principle, and point out the use off axis tracking rather than conventional on axis tracking to suppress cross polarization jamming.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"15 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":"126252865","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 fast and robust adaptive beamformer 一种快速、鲁棒的自适应波束形成器
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984834
Luo Yongjian, Yu Genmiao, Z. Shouhong
{"title":"A fast and robust adaptive beamformer","authors":"Luo Yongjian, Yu Genmiao, Z. Shouhong","doi":"10.1109/ICR.2001.984834","DOIUrl":"https://doi.org/10.1109/ICR.2001.984834","url":null,"abstract":"Based on a unitary transformation, improved adaptive beamforming via orthogonal projection is proposed. The new algorithm firstly transforms a complex-valued covariance matrix into a real-valued matrix by means of a unitary transformation, then eigen-decomposes the transformed matrix for adaptive beamforming. The overall computational load can be significantly reduced, to about only one-fourth of that of the original orthogonal projection method. During the course of the computation for the real-valued matrix, the inherent forward-backward averaging effect, which is equivalent to double the number of snapshots, may upgrade the robustness in the case of a small number of snapshots and closely spaced jamming sources and may raise the output signal-to-interference-plus-noise ratio. Additionally, the spatial smoothing can decorrelate possibly correlated source pairs; therefore, the presented method has a better performance for jammer suppression and stronger ability to reshape the beam as compared to the orthogonal projection and sample matrix inversion algorithms in scenarios with partially correlated or fully coherent sources. The performance of the presented algorithm does not depend on the particular choice of the unitary matrix. Computer simulations demonstrate the effectiveness of the proposed method.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"18 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":"125975136","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 of UWB-radar in measurement of the depth 超宽带雷达在深度测量中的应用
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984908
Huaiying Tan, D. Liang, Kecheng Liu
{"title":"Application of UWB-radar in measurement of the depth","authors":"Huaiying Tan, D. Liang, Kecheng Liu","doi":"10.1109/ICR.2001.984908","DOIUrl":"https://doi.org/10.1109/ICR.2001.984908","url":null,"abstract":"In this paper, pulse radar is used for highway technology. A 2D FDTD model is used to simulate the behavior of such a wideband radar system. According to the numerical results, the depth of the asphalt above the cement can be decided. The optimal distance of the transmitter/receiver unit has is also discussed. Thus, through analyzing the data returning to the receiver, we may ensure that the highway surface is even.","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":"125995806","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
Experimental study on a digital T/R module for phased array radar 相控阵雷达数字收发模块的实验研究
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984856
Jin Xue-ming, Wu Manqing, Tan Jianmei
{"title":"Experimental study on a digital T/R module for phased array radar","authors":"Jin Xue-ming, Wu Manqing, Tan Jianmei","doi":"10.1109/ICR.2001.984856","DOIUrl":"https://doi.org/10.1109/ICR.2001.984856","url":null,"abstract":"A digital T/R module based on direct digital synthesis (DDS) technology is presented in this paper. The phase and amplitude of the module can be adjusted by a digital technique. A test bed based on 8-unit digital T/R modules is built and tested successfully for demonstrating the feasibility of the digital T/R module. The main experimental results are given and analyzed.","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":"130102403","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
Short-duration pulse radar experimental system integration and basic experimental research on the target detection 短时脉冲雷达实验系统集成及目标探测基础实验研究
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984641
L. Guojing, Wang Hongjun, Qiu Shi, L. Guozhi, Pan Quan, Z. Hongcai
{"title":"Short-duration pulse radar experimental system integration and basic experimental research on the target detection","authors":"L. Guojing, Wang Hongjun, Qiu Shi, L. Guozhi, Pan Quan, Z. Hongcai","doi":"10.1109/ICR.2001.984641","DOIUrl":"https://doi.org/10.1109/ICR.2001.984641","url":null,"abstract":"The concept of high power microwave (HPM) short-duration pulse radar may have possibilities with the rapid development of HPM techniques. Short-duration pulse HPM radar has the advantages of high ECCM ability long range detection ability, high range resolution and high ability to detect targets in heavy scatter backgrounds. The DSP method is relatively simple. In this paper, the function, structure and constitution of a short-duration pulse radar experimental system which has been developed is presented. A method for creating, transmitting and receiving the short-duration pulse microwave signal is explored. A high range-resolution detection experiment for an air target and ground target is also preliminarily studied.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"3 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":"128947977","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
Polarization scattering characteristics of chaff cloud in outer space 外层空间箔条云的偏振散射特性
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984732
W. Xuesong, Chen Zhijie, L. Yongzhen
{"title":"Polarization scattering characteristics of chaff cloud in outer space","authors":"W. Xuesong, Chen Zhijie, L. Yongzhen","doi":"10.1109/ICR.2001.984732","DOIUrl":"https://doi.org/10.1109/ICR.2001.984732","url":null,"abstract":"To meet the increasing need of modern ballistic missile countermeasure, it becomes more and more important to study chaff cloud's scattering characteristics in outer space more accurately. A coherent scattering model is presented to depict the polarization scattering process of chaff cloud in outer space instead of the traditional noncoherent model. Chaff cloud's polarization scattering matrix and RCS formulae are derived. These formulae reflect the fluctuation law of chaff cloud's RCS due to the variation of cloud's spatial distribution.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"20 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":"126577689","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
The ultra-low sidelobe dipole array of 16-elements 16元超低旁瓣偶极子阵列
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984901
Ni Jin-lin, Zheng Xueyu, He Dongyuan
{"title":"The ultra-low sidelobe dipole array of 16-elements","authors":"Ni Jin-lin, Zheng Xueyu, He Dongyuan","doi":"10.1109/ICR.2001.984901","DOIUrl":"https://doi.org/10.1109/ICR.2001.984901","url":null,"abstract":"The wideband technique for compensating mutual coupling in a small array is developed and experimentally verified. According to this novel compensative method, characteristics of a collinear and a parallel dipole array of 16 elements with -50 dB sidelobe level are computed. For a collinear dipole array, numerical results indicate that the sidelobe level is better than -46.5 dB within the 15% bandwidth and the optimal sidelobe is -48.5 dB. For a parallel dipole array, the sidelobe level is from -45.4 dB to -47.8 dB within the 15% bandwidth. This paper also discusses error tolerance across a constrained-fed array antenna. A method, in which the different exciting currents have different error tolerance, is adopted and this allows a better error tolerance for a practical ultra-low sidelobe array antenna. Using the above method, the L-band constrained-fed collinear dipole array and parallel dipole array of 16-elements are fabricated and tested. The sidelobe level is maintained below -40 dB within 13% and 12% bandwidth respectively.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"69 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":"132918991","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
Design of a small planar dipole array with wide band and low sidelobes 宽带低旁瓣小型平面偶极子阵列的设计
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984658
Zhang Yumei, Lu Xiaopeng, Zhang Zuji
{"title":"Design of a small planar dipole array with wide band and low sidelobes","authors":"Zhang Yumei, Lu Xiaopeng, Zhang Zuji","doi":"10.1109/ICR.2001.984658","DOIUrl":"https://doi.org/10.1109/ICR.2001.984658","url":null,"abstract":"This paper describes the main techniques involved in the design of a small planar dipole array (4/spl times/42 elements) with wide band and low sidelobes, including design of wideband dipole elements, theoretical analysis and experimental test of mutual coupling between dipole elements, calibration of aperture distribution effected by mutual coupling, CAD for precision corporate-fed power divider network, fabrication of precision corporate-fed power divider network, testing of wideband ultra-low sidelobe antenna with wide vertical beam, and so on. Far-field test results of the antenna show that a peak sidelobe level of -30 dB within 27% frequency band was achieved. If a large array antenna is constructed with the line source arrays used in the antenna, an ultra-low sidelobe level of -35 dB within 27% frequency band can be achieved.","PeriodicalId":366998,"journal":{"name":"2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559)","volume":"653 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":"133349691","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
Application of pulse compression with a Doppler shift using neural network 多普勒频移脉冲压缩的神经网络应用
2001 CIE International Conference on Radar Proceedings (Cat No.01TH8559) Pub Date : 2001-10-15 DOI: 10.1109/ICR.2001.984764
Xiangwei Kong, Shen Huang
{"title":"Application of pulse compression with a Doppler shift using neural network","authors":"Xiangwei Kong, Shen Huang","doi":"10.1109/ICR.2001.984764","DOIUrl":"https://doi.org/10.1109/ICR.2001.984764","url":null,"abstract":"Common biphase pulse compression techniques were not very robustness against Doppler distortions, and the peak signal-to-noise ratio of these methods was not very high. Kwan and Lee (1993) presented a pulse compression approach by using a neural network. A 40 dB peak signal-to-noise ratio can be achieved. Based on Kwan and Lee's method, we present an improved BP (backpropagation) algorithm. The robustness against Doppler distortions and the output peak signal-to-noise ratio of the improved algorithm are examined. The improved method get a 50 dB output peak signal-to-noise ratio, about 10 dB higher than Kwan and Lee's method. The improved method also has a better Doppler resistance ability.","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":"115873346","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
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