一种新的短波信道多普勒扩展实现算法

基于查表的谐波叠加法常用于仿真移动信道模拟器中的多普勒扩展,能有效降低模拟器的运算复杂度。但将其用于仿真短波信道模拟器中的多普勒扩展时,将面临对存储资源要求过高、查表过于复杂的问题,限制了模拟器的仿真开发。提出了一种低存储量的查表算法仿真实现短波信道中的多普勒扩展,大大减少了对存储资源的耗费,提高了多普勒扩展的实现精度,且较直接求谐波叠加的仿真方法具有更低的运算复杂度,更适用于模拟器的仿真实现。

A Novel Implementation Algorithm for Doppler Spread in High Frequency Channel

Sum-of-sinusoids method based on table look-up is commonly employed to simulate Doppler spread in mobile channel simulator,which reduces the computational complexity of simulator.While using this method to realize the Doppler spread in high frequency channel requires hardware with plentiful memory,which restricts the realization of simulator.In this paper,a kind of table look-up with low memory is proposed.It reduces the consumption of memory resource greatly,and improves the realization precision of Dopple...