Joint cognitive optimization of transmit waveform and receive filter against deceptive interference
Mengmeng Ge, Xianxiang Yu, Zhengxin Yan, Guolong Cui, Lingjiang Kong
Abstract
This paper is focused on the joint design of transmit waveform and receive filter in the presence of deceptive interference. In particular, a design criterion incorporating a weighted sum of integrate sidelobe levels (ISLs) with respect to the receive filter and transmit waveform as well as the receive filter and interference waveform is developed to minimize along with interference nulling, constant modulus and signal-to-noise ratio (SNR) restrictions. To tackle the resulting non-convex optimization problem, a new decoupled alternating direction penalty method (DCADPM) is proposed based on the ADPM framework. In each iteration, it converts the considered problem into multiple tractable subproblems with closed-form solutions via introducing auxiliary variables. Finally, numerical results are provided to demonstrate the effectiveness of the proposed methodology, highlighting that it is capable of rejecting many kinds of deceptive interferences.