J4 ›› 2013, Vol. 40 ›› Issue (3): 180-187.doi: 10.3969/j.issn.1001-2400.2013.03.027

• Original Articles • Previous Articles     Next Articles

Transmit beampattern synthesis and waveform design  for 2-D wideband MIMO radar

YANG Tao;SU Tao;ZHANG Wang   

  1. (National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2012-03-23 Online:2013-06-20 Published:2013-07-29
  • Contact: YANG Tao E-mail:taoyang@mail.xidian.edu.cn

Abstract:

For matching the desired transmit beampattern of the two dimensional(2-D) wideband MIMO radar system, a new transmit beampattern synthesis and waveform design algorithm is proposed based on the frquency invariant beamforming. In this algorithm, to eliminate any dependency on frequency of the emiting waveform, the 2-D fourier relationship between uniform rectangular array(URA) transmit beampattern and spectrum of emiting waveform is used. Then the cost function of waveform matching frequency response is established, which imposes a constraint on constant modulus. Finally, the alternating matrix fitting method is used to design unimodular sequences. The proposed method effectively mitigates frequency dispersion of the 2-D wideband MIMO radar transmit beampattern. Numerical simulations have proved the validity of this algorithm.

Key words: MIMO radar, wideband, transmit beampattern synthesis, uniform rectangular array(URA)

CLC Number: 

  • TN957.51