Application of the Total Least Square ESPRIT Method to Estimation of Angular Coordinates of Moving Objects

[摘要] The TLS ESPRIT method is investigated in application to estimation of angular coordinates (angles ofarrival)of two moving objects at the presence ofan external, relatively strong uncorrelated signal. As a radar antenna system, the 32-element uniform linear array (ULA) is used. Various computer simulations have been carried out in order to demonstrate good accuracy and high spatial resolution of the TLS ESPRIT methodin the scenario outlined above. It is also shown that accuracy and angle resolution can be significantly increased by using the proposed preprocessing (beamforming). The most of simulation results, presented in a graphical form, have been compared to the corresponding equivalent results obtained by using the ESPRIT method and conventional amplitude monopulse method aided by the coherent Doppler filtration.

[学科分类] 电子、光学、磁材料