Abstract:

A new trigonometric function pair matching method employing double L-shape array is proposed. The purpose is to show a way to remove pairing failure and high computational complexity. Firstly, using one dimensional estimation method to get vectors constructed by the trigonometric function of elevation and azimuth angles. Then pairing processing can be completed by the geometric characteristics of the double L-shape array and the relationship of the trigonometric function. It removes the pairing failure when the subtraction between the elevation and azimuth of difference sources is very small. This method does not depend on signal modulation and estimation algorithm. Therefore, it improves detective probability and the accuracy of estimation, meanwhile greatly decreases the computational load. Simulation results verify the improvement of pairing and estimation.