波形正交性退化下机载MIMO雷达杂波模型与自由度分析

doi:10.3969/j.issn.1001-506X.2012.01.15

Journal of Systems Engineering and Electronics ›› 2012, Vol. 34 ›› Issue (1): 80-84.doi: 10.3969/j.issn.1001-506X.2012.01.15

波形正交性退化下机载MIMO雷达杂波模型与自由度分析

张西川¹，张永顺¹，谢文冲²，王永良²，张增辉³

1. 空军工程大学导弹学院，陕西三原 713800;
2. 空军雷达学院，湖北武汉 430019|;
3. 国防科学技术大学理学院，湖南长沙 410073

出版日期:2012-01-13 发布日期:2010-01-03

Analysis of clutter model and DOFs for airborne MIMO radar under orthogonal degradation of waveform

ZHANG Xichuan¹, ZHANG Yongshun¹, XIE Wenchong², WANG Yongliang², ZHANG Zenghui³

1. Missile Institute, Air Force Engineering University, Sanyuan 713800, China;
2. Air Force Radar Academy, Wuhan 430019, China;
3. School of Science, National University of Defense Technology, Changsha 410073, China

Online:2012-01-13 Published:2010-01-03

摘要/Abstract

摘要：

针对发射波形正交性退化影响机载多输入多输出（multiple input multiple output，MIMO）雷达的杂波特性，基于信号空间和子阵空间的变换原理，建立了波形正交性退化下的机载MIMO雷达杂波通用模型和标准模型。基于带限信号的最优逼近特性，分析了波形正交性退化下的空时等效阵列孔径变化规律，提出了杂波自由度（degree of freedom， DOF）的估计准则。最后,仿真验证了杂波模型及杂波自由度估计准则的有效性。

Abstract:

Aiming at the clutter characteristics of airborne multipleinput multipleoutput (MIMO) radar under the orthogonal degradation of waveform, the general and standard clutter models of airborne MIMO radar are presented under the orthogonal degradation of waveform based on the transformed principle of subarray space and transmit signal space. Then the regularity of change for spacetime equivalence aperture is analyzed under the orthogonal degradation of waveform based on the optimum approached property of the bandlimit signal, and an estimation rule for the degree of freedom (DOF) of clutter is presented. Finally, simulation results show the effectivity of the proposed models and rules.

张西川, 张永顺，谢文冲，王永良，张增辉. 波形正交性退化下机载MIMO雷达杂波模型与自由度分析[J]. Journal of Systems Engineering and Electronics, 2012, 34(1): 80-84.

ZHANG Xi chuan, ZHANG Yong shun, XIE Wen chong, WANG Yong liang, ZHANG Zeng hui. Analysis of clutter model and DOFs for airborne MIMO radar under orthogonal degradation of waveform[J]. Journal of Systems Engineering and Electronics, 2012, 34(1): 80-84.

波形正交性退化下机载MIMO雷达杂波模型与自由度分析

Analysis of clutter model and DOFs for airborne MIMO radar under orthogonal degradation of waveform

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