Abstract
For direction finding problem of multi-target in the multi-input multi-output (MIMO) radar, a multi-target direction of arrival (DOA) estimation method with time reversal (TR) MIMO radar is proposed. Firstly, according to the echo signal matrix of MIMO radar, we use TR theory to establish the echo signal model of TR MIMO radar. Then, the echo signal of TR MIMO is performed with matched filter and vectorized processing on the basis of the waveform diversity of MIMO radar, which extends the virtual aperture of MIMO radar. Finally, the Multiple Signal Classification (MUSIC) algorithm is used to estimate the DOAs, improving the estimation performance greatly. Compared with the conventional MIMO, TR MIMO can effectively improve the echo signal gain and increase the virtual aperture. The simulation results show that TR MIMO can accurately estimate the angles even when the (signal noise ratio) SNR is -20dB, which demonstrates the effectiveness of proposed configuration.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
