一种免伪码同步恢复的数字化零中频解扩方案

A Zero-IF Digitized Despreading Scheme without PN Code Synchronization Recovery

零中频方案是实现数字化解扩的主要手段之一。本文在对等chip速率和 2倍chip速率A D采样解扩进行性能分析的基础上 ,给出了一种不需要伪码同步恢复的基于

Zero-IF is a key method to digitatize the despreading.In this paper, a fast zero-IF digital despreading scheme without PN code synchronization recovery is given,which is based on performance analysis of equal and doubled sampling in A/D convertor.