Receiving Angle Extraction for Bistatic Radar Target Recognition

Abstract

When the target of interest is determined, the transmitter and receiver positions of bistatic radar are of great importance at the aspect of radar target classification. The radar cross section (RCS) of a target varies with these positions, and the target classification performance is considerably influenced by RCS. In this study, the target classification performance using the bistatic RCS of four different wire targets was analyzed. Time-frequency analysis and effective compression techniques are used for target feature extraction from the bistatic scattering data of each target, and a multilayered perceptron (MLP) neural network is used as a classifier. The optimum receiver position is found by comparing the calculated classification probabilities while changing the position of the bistatic radar receiver. The simulation results show that an optimally positioned bistatic radar yields better classification results, demonstrating the importance of the positions of the transmitter and receiver for bistatic radar.