Anti-Jamming Performance Analysis of Adaptive Array Based on Signal-to-Interference-Noise Ratio Gain

The existing performance speculations of adaptive array have some shortcomings like sensitivity of weight scaling or the difficulty of reflecting the successive processing performance. To deal with this problem, a new speculation was proposed, i.e., signal-to-interference-noise ratio (SINR) gain, for evaluating the anti-jamming performance of adaptive array. Besides, the analytic expression of SINR gain was also derived for uniformly linear spaced array. The proposed SINR gain shows a clear physical meaning and can compare the anti-jamming performance for different anti-jamming spatial filters. Furthermore, the successive performance can be directly obtained via the proposed SINR gain. Finally, the results of numerical experiments show the effectiveness of the proposed method.