符号成形及SAW技术实现优化研究

The Optimization of Sympol Shape With SAW Modulation Filter

本又提出利用声表面波（SWA）滤波器在载波上直接实现符号成形与调制。用切尾余弦系列作为基函数在连续相位，恒包络及附加谱分布字条件下对成形符号函数进行设计，并提出一种新的采样重构法优化设计此SAW调制滤波器，最后给出模拟结果并得出结论。

Surface asoustic wave (SAW) filter is used directly as symbol-shaping filter and modulater, the truncated cosine series function has been applied to synthesize this FIR filter and the critera which govems the selection of the coefficients are given. Author propose a novel design and optimization mehtod which uses the standard Remez change algorithm with the help of rersample and interpolation reconstuture for the practical SAW filter with multistrip coupler. The simulation results confirm this algorithm is very effective nd simple.