利用DIRECT算法设计基于FBG延迟线的微波光子滤波器

Design of PMF Based on FBG Delay Line Using DIRECT Algorithm

将DIRECT全局优化算法应用于微波光子滤波器的设计中,用C语言实现该算法来得到抽头系数,利用MATLAB对滤波器幅度响应进行仿真,分析了FBG反射系数搜索范围、抽头系数为正且具有对称性时对滤波特性的影响,并进行了优化设计,仿真结果表明了这种算法的可行性和有效性.

DIRECT global optimization algorithm is used to design PMF. The C language is employed to achieve DIRECT algorithm and MATLAB language is used to simulate the amplitude responses. Then the impacts of FBG reflectivity, positive and symmetry tap coefficients on PMF are analyzed respectively. Finally, the design is optimized. The simulation results show that this method is feasible and effective.