EBPSK-MODEM的抗单径瑞利衰落算法

Anti-Single Path Rayleigh Fading Algorithm Based on EBPSK-MODEM

摘要: 扩展的二元相移键控(Extended Binary Phase Shift Keying, EBPSK)是一种高效调制方式，针对冲击滤波器可将EBPSK调制信息转化为幅度冲击的特点并引入插值思想，本文提出了两种抗单径瑞利衰落算法：插值估计衰落因子和插值估计判决门限。仿真结果表明，这两种算法对EBPSK-MODEM系统的性能均有不同程度改善，其中以插值估计判决门限算法对系统的性能改善效果优于插值估计衰落因子算法。

Abstract: Extended Binary Phase Shift Keying (EBPSK) is an efficient modulation mode. According to the characteristic that the impacting filter based demodulator would transform the EBPSK modulating signal into impact amplitude, and the interpolation thought, two new anti-single path Rayleigh fading algorithms aimed at EBPSK-MODEM scheme are put forward, which are interpolation algo-rithm estimating fading factor and interpolation algorithm estimating the decision threshold. The simulation results show that the two algorithms improve the performance of EBPSK-MODEM sys-tems to varying degrees. Among them, the performance of the interpolation algorithm estimating decision threshold is slightly better than interpolation algorithm estimating fading factor.