【摘要】 提出了一种将遗传算法应用于参差时变杂波抑制滤波器设计的方法。在参差码的约束范围内,可能出现参差码组合数很多的情况。遗传算法通过智能式搜索和渐进式优化快速有效地获得优化的参差码,使得计算量大大减小。同时,结合改善因子最大化法来设计滤波器的优化权系数。另外,使用适应度的缩放控制技术使遗传算法在用于参差码的搜索时得到了进一步改善。仿真结果显示该方法可行有效。更多还原

【Abstract】 The application of the genetic algorithm to staggered time-variant filter design for clutter rejection is presented in this paper. The genetic algorithm implements intellectualized searching and gradual optimization, so the optimal codes are obtained fast and effectually from large amounts of code combinations. And the computation decreases greatly. The filters optimal coefficients are designed by improvement factor maximization method. In addition, the zoom control of fitness amends the genetic algorithm in search of optimal codes. The simulation results verified the feasibility and effectiveness of the genetic algorithm.更多还原