Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)最新文献_第4页

A novel parametric SAR autofocus method 一种新的参数化SAR自动对焦方法

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316394

Jia Xu, Yingning Peng, Liping Zhang, Yin-shen Lin, Xianggen Xia

引用次数: 0

Spatio-temporal delta-sigma modulation for shared wideband transmit arrays 共享宽带发射阵列的时空δ - σ调制

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316400

D. Scholnik, Jeffrey O. Coleman, Donald Bowling, Michael Neel

引用次数: 16

STAP detection using space-time autoregressive filtering 基于时空自回归滤波的STAP检测

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316483

J. A. Russ, D. Casbeer, A. Swindlehurst

引用次数: 11

On /spl alpha/-/spl beta/ target tracking: the probability of target escape On /spl alpha/-/spl beta/目标跟踪:目标逃脱的概率

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316484

S. Daka, P. Kalata, P. L. Rawicz, T. Chmielewski

引用次数: 1

STAP with knowledge-aided data pre-whitening STAP与知识辅助数据预白化

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316437

J. Bergin, C. M. Teixeira, P. Techau, J. Guerci

引用次数: 38

From a high-resolution LFM-CW shipborne radar to an airport surface detection equipment 从高分辨率LFM-CW舰载雷达到机场水面探测设备

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316414

J. Grajal, A. Asensio, L. Requejo

引用次数: 13

An inverse polar format algorithm for turntable spotlight ISAR imaging systems using stepped frequency waveforms 采用阶跃频率波形的转台聚光灯ISAR成像系统的反极坐标格式算法

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316424

S.D. Fisher, M. Richards, G. Showman

{"title":"An inverse polar format algorithm for turntable spotlight ISAR imaging systems using stepped frequency waveforms","authors":"S.D. Fisher, M. Richards, G. Showman","doi":"10.1109/NRC.2004.1316424","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316424","url":null,"abstract":"Basic turntable spotlight inverse synthetic aperture radar (ISAR) systems that employ stepped frequency waveforms implement image formation algorithms based on the premise that data collection over uniform frequency and angle steps results in a rectangular sampling of the image spatial frequency (k-space) domain. As a result, a simple image formation algorithm implementing only a computationally efficient inverse 2D discrete Fourier transform (DFT) may be realized. However, this approach imposes limitations on resolution and/or scene size since the conventional data collection procedure actually results in a polar sampling of k-space, invalidating the rectangular grid assumption. This paper introduces a new data collection scheme using stepped frequency waveforms that are nonuniformly stepped in time and frequency so as to collect sample points according to the desired k-space shape. This procedure allows the use of a single inverse 2D DFT as the image formation algorithm, thereby reducing traditional constraints on resolution and scene size while maintaining good image focus and reducing computational complexity.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125182409","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

A method of sidelobe cancellation using wavelet packets 一种利用小波包消除旁瓣的方法

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316462

P.E. Cahill, K. Gerlach, F.C. Li

引用次数: 5

A spectrally clean transmitting system for solid-state phased-array radars 用于固态相控阵雷达的光谱清洁传输系统

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316410

H. Faust, B. Connolly, T. Firestone, R. Chen, B. Cantrell, E. Mokole

{"title":"A spectrally clean transmitting system for solid-state phased-array radars","authors":"H. Faust, B. Connolly, T. Firestone, R. Chen, B. Cantrell, E. Mokole","doi":"10.1109/NRC.2004.1316410","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316410","url":null,"abstract":"Navy radar operations are being curtailed in a littoral environment. This is due to two factors: the encroachment of cell phone systems into the naval radar bands; in-band interference from other radars. The spectral width of most pulsed radars is significantly wider than necessary with present modulation schemes. Most radars utilize some form of constant envelope pulse with phase or frequency modulation. This causes the spectrum to broaden to several times the information bandwidth. If both the amplitude and phase of the transmitted signal are allowed to change, a significantly narrower bandwidth can be achieved. The paper presents a method to create waveforms with instantaneous bandwidths of 20 MHz confined within -100 dB. The theoretical spectral results of three popular phase modulation schemes (phase shift keying, minimum phase shift keying and derivative phase shift keying) are compared with the spectrally clean results. In addition, the Chireix out-phasing method is presented as an alternative to generating amplitude and phase modulated waveforms. The Chireix method provides a way of improving the efficiency compared to the conventional class A power amplifier. Preliminary results are shown for a spectrally clean waveform.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129876442","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: 33

Adaptive Doppler filtering applied to modern air traffic control radars 自适应多普勒滤波在现代空管雷达中的应用

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316429

K. J. Anderson, J. Ward, R. O'Donnell

{"title":"Adaptive Doppler filtering applied to modern air traffic control radars","authors":"K. J. Anderson, J. Ward, R. O'Donnell","doi":"10.1109/NRC.2004.1316429","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316429","url":null,"abstract":"This paper presents an analysis of the Doppler processing technology currently in use in the USA's terminal airport surveillance radars, and examines possibilities for performance improvement, particularly in the presence of moving clutter. The research focuses on five- and eight-pulse waveform methodologies and their respective detection capabilities given clearly defined rain clutter scenarios. Performance with fixed coefficient filters similar to those used in the existing radars is calculated, followed by performance using an adaptive Doppler filtering technique. Performance is quantified in terms of signal-to-interference ratio at the output of the Doppler filters and resultant probability of detection given a specified probability of false alarm. The results show that a substantial improvement in detection in the vicinity of rain clutter is realized for both the five- and eight-pulse waveforms when using the adaptive coefficient Doppler filters as compared to the performance observed with the fixed coefficient filters. For constant filter weights, the eight-pulse Doppler filters give significantly better performance in most diverse rain clutter than the five-pulse Doppler filters.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116338725","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