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

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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. 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

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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.

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