基于相關(guān)法的分布式全相參雷達(dá)相干參數(shù)估計(jì)及相參性能

宋靖; 周青松; 張劍云

doi:10.11999/JEIT141339

基于相關(guān)法的分布式全相參雷達(dá)相干參數(shù)估計(jì)及相參性能

doi: 10.11999/JEIT141339

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出版歷程
- 收稿日期: 2014-10-20
- 修回日期: 2015-03-12
- 刊出日期: 2015-07-19

Coherent Parameters Estimation by Cross-correlation for Distributed Aperture Fully Coherent Radar

摘要

摘要: 針對(duì)一般結(jié)構(gòu)的分布式全相參雷達(dá)，研究了基于相關(guān)法的時(shí)延差和相位差估計(jì)性能以及輸出信噪比增益(oSNRg)。首先分別建立多輸入多輸出(MIMO)模式和全相參(FC)模式下的信號(hào)模型。然后重點(diǎn)分析估計(jì)相位差時(shí)的相位模糊問題，并提出一種有效的解模糊方法。數(shù)值實(shí)驗(yàn)結(jié)果表明：當(dāng)輸入信噪比足夠高時(shí)，相關(guān)法能夠獲得穩(wěn)健的相干參數(shù)估計(jì)，且oSNRg接近理想值。
- 雷達(dá) /
- 信號(hào)處理 /
- 穩(wěn)健估計(jì) /
- 相位模糊 /
- 相關(guān)法 /
- 分布式全相參
Abstract: For distributed aperture coherent radar of general signal processing architecture, the estimating performance of time delay differences and phase differences, and the output Signal to Noise Ratio gain (oSNRg) based on cross-correlation are studied in this paper. Firstly, the signal models are proposed in Multiple-Input Multiple-Output (MIMO) mode and Fully Coherent (FC) mode respectively. Then the phase ambiguity with estimating phase differences by cross-correlation is deeply analyzed, and an effective method for resolving ambiguity is proposed to estimate robustly the phase differences. Numerical examples demonstrate that when the input SNR is high enough, the coherence parameters can be estimated robustly and the oSNRg approaches the ideal value by cross-correlation method.
- Radar /
- Signal processing /
- Robust estimation /
- Phase ambiguity /
- Cross-correlation /
- Distributed Aperture Fully Coherent (DAFC)

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參考文獻(xiàn)(22)

Ahlgren G W. Next generation radar concept definition team final report[R]. MIT Lincoln Laboratory, 2003.

Cuomo K M, Coutts S D, McHarg J C, et al.. Wideband aperture coherence processing for next generation radar (NexGen)[R]. MIT Lincoln Laboratory, 2004: 11-16.

Coutts S D, Cuomo K M, McHarg J C, et al.. Distributed coherent aperture measurements for next generation BMD radar[C]. Fourth IEEE Workshop on Sensor Array and Multichannel Processing, Walthma, MA, USA, 2006: 390-393.

Brookner E. Phased-array and radar astounding breakthroughsan update[C]. IEEE Radar Conference, Boston, MA, USA, 2008, DOI:10.1109/RADAR.2008. 4720771.

Fletcher A and Robey F. Performance bounds for adaptive coherence of sparse array radar[C]. 11th Conference Adaptive Sensors Array Processing, MIT Lincoln Laboratory, Lexington, MA, USA, 2003: 290-293.

魯耀兵, 張履謙, 周蔭清, 等. 分布式陣列相參合成雷達(dá)技術(shù)研究[J]. 系統(tǒng)工程與電子技術(shù), 2013, 35(8): 1657-1662.

Lu Yao-bing, Zhang L-qian, Zhou Yin-qing, et al.. Study on distributed aperture coherence synthetic radar technology[J]. Systems Engineering and Electronic, 2013, 35(8): 1657-1662.

曹哲, 柴振海, 高宏衛(wèi), 等. 分布式陣列相參合成雷達(dá)技術(shù)研究與試驗(yàn)[J]. 現(xiàn)代防御技術(shù), 2012, 40(4): 1-11.

Cao Zhe, Chai Zhen-hai, Gao Hong-wei, et al.. Technology and tests on distributed aperture coherence synthesizing radar[J]. Modern Defence Technology, 2012, 40(4): 1-11.

Gao Hong-wei, Cao Zhe, Wen Shu-liang, et al.. Study on distributed aperture coherence synthesizing radar with several experiment results[C]. Proceedings of the IEEE Radar Conference, Xian, China, 2011: 84-86.

曾濤, 殷丕磊, 楊小鵬, 等. 分布式全相參雷達(dá)系統(tǒng)時(shí)間與相位同步方案研究[J]. 雷達(dá)學(xué)報(bào), 2013, 2(1): 105-110.

Zeng Tao, Yin Pi-lei, Yang Xiao-peng, et al.. Time and phase synchronization for distributed aperture coherent radar[J]. Journal of Radars, 2013, 2(1): 105-110.

殷丕磊, 楊小鵬, 曾濤. 分布式全相參雷達(dá)的相位差跟蹤技術(shù)[J]. 信號(hào)處理, 2013, 29(3): 313-318.

Yin Pi-lei, Yang Xiao-peng, and Zeng Tao. Tracking technology of phase difference for distributed aperture radar [J]. Journal of Signal Processing, 2013, 29(3): 313-318.

Sun Pei-lin, Tang Jun, He Qian, et al.. Cramer-Rao bound of parameters estimation and coherence performance for next generation radar[J]. IET Radar, Sonar Navigation, 2013, 7(5): 553-567.

Tang Xiao-wei, Tang Jun, He Qian, et al.. Cramer-Rao bounds and coherence performance analysis for next generation radar with pulse trains[J]. Sensor, 2013, 13(4): 5347-5367.

宋靖, 張劍云, 鄭志東, 等. 分布式全相參雷達(dá)相干參數(shù)估計(jì)性能[J]. 電子與信息學(xué)報(bào), 2014, 36(8): 1926-1931.

Song Jing, Zhang Jian-yun, Zheng Zhi-dong, et al.. Coherent parameters estimation performance for distributed aperture coherent radar[J]. Journal of Electronics Information Technology, 2014, 36(8): 1926-1931.

宋靖, 張劍云. 分布式全相參雷達(dá)相參性能分析[J]. 電子與信息學(xué)報(bào), 2015, 37(1): 9-14.

Song Jing and Zhang Jian-yun. Coherence performance analysis for distributed aperture coherent radar[J]. Journal of Electronics Information Technology, 2015, 37(1): 9-14.

宋靖, 牛朝陽, 張劍云. 分布式全相參雷達(dá)LFM信號(hào)設(shè)計(jì)及性能分析[J]. 中國科學(xué): 信息科學(xué), DOI: 10.1360/ N112014-00185.

Song Jing, Niu Zhao-yang, and Zhang Jian-yun. OFD-LFM signal design and performance analysis for distributed aperture fully coherent radar[J]. Scientia Sinica Informationis, DOI: 10.1360/N112014-00185.

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