基于頻率分集陣列的機載雷達距離模糊雜波抑制方法

王偉偉; 吳孫勇; 許京偉; 楊曉超

doi:10.11999/JEIT150187

基于頻率分集陣列的機載雷達距離模糊雜波抑制方法

doi: 10.11999/JEIT150187

1.
(中國空間技術研究院西安分院西安 710100) ②(桂林電子科技大學數(shù)學與計算科學學院桂林 541004) ③(西安電子科技大學雷達信號處理國家重點實驗室西安 710071)

基金項目:

國家自然科學基金(61261033, 41201479, 61062003, 61162007)和廣西自然科學基金 (2013GXNSFBA019270)

計量
- 文章訪問數(shù): 1679
- HTML全文瀏覽量: 121
- PDF下載量: 466
- 被引次數(shù): 0
出版歷程
- 收稿日期: 2015-02-02
- 修回日期: 2015-05-25
- 刊出日期: 2015-10-19

Range Ambiguity Clutter Suppression for Airborne Radar Based on Frequency Diverse Array

1.
(China Academy of Space Technology-Xi&rsquo
2.
(Department of Computational Science and Mathematics, Guilin University of Electronic Technology, Guilin 541004, China)

Funds:

The National Natural Science Foundation of China (61261033, 41201479, 61062003, 61162007)

摘要

摘要: 針對機載預警雷達運動目標存在距離模糊的問題，該文提出一種基于頻率分集陣列體制的空時自適應處理(STAP)距離模糊雜波抑制方法。該方法利用頻率分集引入的距離維可控自由度，將距離模糊數(shù)反映到信號的導向矢量中，通過將不同距離模糊區(qū)域的雜波和目標信號在空間頻率域實現(xiàn)分離，并在不同的距離模糊區(qū)實現(xiàn)雜波抑制。該方法僅在一個脈沖重復頻率下即可實現(xiàn)運動目標檢測和距離解模糊，大大提高了機載雷達系統(tǒng)的性能。仿真實驗驗證了該文方法的有效性。
- 機載雷達 /
- 空時自適應處理 /
- 頻率分集陣列 /
- 距離解模糊
Abstract: Focusing on the range ambiguity of the moving target in airborne radar system, a novel Space-Time Adaptive Processing (STAP) approach based on frequency diverse array configuration is proposed for range ambiguous clutter suppression. In the proposed method, the controllable degree-of-freedom is exploited, which is introduced by the frequency diverse. The range ambiguity number is incorporated into the steering vector of the target signal. By separating the different range ambiguous range region in the spatial frequency domain, the target can be detected separately within each range region and thus range ambiguity can be resolved. By using the proposed method, giving only one pulse repetition frequency, the moving target can be detected and the range ambiguity can be resolved simultaneously, which improves the performance of airborne radar evidently. Simulation results demonstrate the effectiveness of the proposed method.
- Airborne radar /
- Space-Time Adaptive Processing (STAP) /
- Frequency Diverse Array (FDA) /
- Range ambiguity resolution

HTML全文

參考文獻(15)

Klemm R. Principles of Space-Time Adaptive Processing [M]. London: The Institution of Electrical Engineers, 2002: 87-100.

Aboutanios E and Nulgrew B. Hybrid detection approach for STAP in heterogeneous clutter[J]. IEEE Transactions on Aerospace and Electronic Systems, 2010, 46(3): 10211033.

Melvin W. Space-time adaptive radar performance in heterogeneous clutter[J]. IEEE Transactions on Aerospace and Electronic Systems, 2000, 36(2): 621-633.

Guerci J R. Theory and application of covariance matrix tapers for robust adaptive beamforming[J]. IEEE Transactions on Signal Processing, 1999, 47(4): 977-985.

Hale T B, Temple M A, Raquet J F, et al.. Localized three-dimensional adaptive spatial-temporal processing for airborne radar[J]. IEE Proceedings-Radar, Sonar and Navigation, 2003, 150(1): 18-22.

Hale T B, Temple M A, and Wicks M C. Clutter suppression using elevation interferometry fused with space-time adaptive processing[J]. Electronic Letters, 2001, 37(12): 793-794.

Villano M, Krieger G, and Moreira A. A novel processing strategy for staggered SAR[J]. IEEE Geoscience and Remote Sensing Letters, 2014, 11(11): 1891-1895.

Scholnik D P. Range-ambiguous clutter suppression with pulse-diverse waveforms[C]. IEEE Radar Conference, Kansas City, Missouri, USA, 2011: 336-341.

Wang W Q. Mitigating range ambiguities in high-PRF SAR with OFDM waveform diversity[J]. IEEE Geoscience and Remote Sensing Letters, 2013, 10(1): 101-105.

Wang W Q and Shao H. Range-angle localization of targets by a double-pulse frequency diverse array radar[J]. IEEE Journal of Electronics Letters, 2014, 8(1): 106-114.

Baizert P, Hale T B, Temple M A, et al.. Forward-looking radar GMTI benefits using a linear frequency diverse array [J]. Electronics Letters, 2006, 42(22): 1311-1312.

胡柏林, 廖桂生, 許京偉, 等. 前視陣頻率分集雷達空時雜波特性研究[J]. 電子與信息學報, 2013, 35(11): 2693-2699.

Hu Bo-lin, Liao Gui-sheng, Xu Jing-wei, et al.. Study on space-time character of clutter for forward-looking frequency diverse array radar[J]. Journal of Electronics Information Technology, 2013, 35(11): 2693-2699.

Sammartino P F, Backer C J, and Griffiths H D. Frequency diverse MIMO techniques for radar[J]. IEEE Transactions on Aerospace and Electronic Systems, 2013, 49(1): 201-222.

Antonik P, Wicks M C, Griffiths H D, et al.. Multi-mission multi-mode waveform diversity[C]. IEEE Radar Conference, Verona, NY, 2006: 24-27.

施引文獻

資源附件(0)

訪問統(tǒng)計