基于信噪杂比最大能量分配认知雷达波形设计

针对认知雷达信号处理中基于信噪杂比（SINR：Signal to Interference plus Noise Ratio）最优波形设计中因对拉格朗日乘子进行搜索而导致计算量大的问题, 提出一种基于信噪杂比最大能量分配方法。该方法通过离散化的能量进行合理分配, 获取回波的最大SINR, 从而得到认知雷达的最优发射波形。仿真实验表明, 基于信噪杂比最大能量分配方法与拉格朗日乘子算法获取的认知雷达最优波形相近, 但该方法因不需对乘子进行搜索而减少了计算量, 提高了计算速度。

Cognitive Radar Waveform Design Based on Sinr Maximum Energy Distribution

The optimal waveform design based on SINR(Signal to Interference plus Noise Ratio) needs to search for the Lagrange multiplier which leads to a large amount of computation. To solve the problem, a method of maximum energy distribution based on SINR is presented. It distributes the discrete energy reasonably to maximize SINR of the echo. Theoptimal transmitted waveform of cognitive radar can be obtained with this method.The simulation results show that the achieved optimal cognitive radar waveformbased on the SINR maximum energy distribution algorithm is close to the waveform based on the Lagrange multiplier algorithm and this method does not need to search for the multiplier. So the amount of computation can be reduced, the computation rate can be improved.