一种空时联合优化的MIMO雷达波形设计方法

doi:10.3969/j.issn.1001-2400.2014.03.007

Abstract

Abstract:

In the waveform design for MIMO radar, the signal in the direction of interest may have a poor temporal property. Therefore, a waveform design method for MIMO radar based on joint spatial and temporal optimization is proposed, by taking account of the power distribution in space and the auto-correlation of the signal in the interested direction jointly. Based on the auto-correlation sidelobe level and correlation coefficients among transmitted signals, the optimization model for waveform design can be established, which is identical for the orthogonal waveform and the waveform with a specific beampattern. Then, the waveform can be optimized by using sequential quadratic programming (SQP) or weigthed iterative algorithm based on gradient information. Numerical results show that the desired beampttern can be approached by the waveform designed and that the signals in the directions of interest have good auto-correlation property.

Key words: MIMO radar, waveform design, transmit beampattern, joint saptial and temporal optimization, peak sidelobe level

WANG Xu;ZHOU Shenghua;LIU Hongwei;BAO Zheng. Waveform design method for MIMO radar based on joint spatial and temporal optimization[J].J4, 2014, 41(3): 41-48+70.

References

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Waveform design method for MIMO radar based on joint spatial and temporal optimization

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