Systems Engineering and Electronics ›› 2025, Vol. 47 ›› Issue (2): 442-450.doi: 10.12305/j.issn.1001-506X.2025.02.11

• Sensors and Signal Processing • Previous Articles    

Co-located MIMO radar waveform design based on multi-target robust STAP

Yunlei ZHANG1,*, Liguo LIU1, Pei PENG1, Tingli SHEN3, Houpu LI2   

  1. 1. School of Electronic Engineering, Navy University of Engineering, Wuhan 430033, China
    2. School of Electrical Engineering, Navy University of Engineering, Wuhan 430033, China
    3. Unit 95780 of the PLA, Ningbo 315040, China
  • Received:2023-10-20 Online:2025-02-25 Published:2025-03-18
  • Contact: Yunlei ZHANG

Abstract:

To solve the optimal transmit waveform design problem in co-located multiple-input multiple-output (MIMO) radar multi-target space-time adaptive signal processing (STAP), the transmit waveform and receive filter are jointly optimized by maximizing the worst output target signal-to-interference plus noise ratio (SINR) as the optimization criterion. In terms of model, other targets are considered as coherent interference. In terms of algorithm, to meet the rank 1 constraint for the covariance matrix of the output waveform associated with the semi-definite programming (SDP) algorithm, a solution based matrix rank 1 approximation and rank decreasing is proposed. On this basis, two iterative alternating optimization algorithms are designed and their performances are compared. The simulation result shows that the optimal transimit waveform can meet the peak-to-average ratio (PAR) constraint and the similarity constraint, with robust multi-target space-time clutter suppression capabilities.

Key words: multi-target, robust space-time adaptive signal processing (STAP), co-located multiple-input multiple-output (MIMO) radar, waveform design, reduced rank

CLC Number: 

[an error occurred while processing this directive]