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在用ＦＤＴＤ法模拟复杂微波结构时，引入数字信号处理中的Ｍａｒｐｌｅ算法，以少量时域输出信号为样本，进行参数估计，并预测以后的输出信号波形和频谱，节约７０％的计算时间，模拟结果与未利用数字信号处理的结果相比，有很大改善．
When using FDTD method to simulate complex microwave structures, the Marple algorithm in digital signal processing is introduced to sample a small number of time-domain output signals for parameter estimation and to predict the output signal waveform and spectrum afterwards, saving 70% of the computation time. The simulation The result is a significant improvement over the results of unused digital signal processing.