摘要: |
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2倍chip速率采样的快速零中频数字解扩方案。 |
关键词: 码分多址通信 扩频接收机 零中频解扩 同步恢复 移动通信 伪码 |
DOI:10.3969/j.issn.1001-893X. |
修订日期:2002-01-07 |
基金项目: |
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A Zero-IF Digitized Despreading Scheme without PN Code Synchronization Recovery |
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Abstract: |
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. |
Key words: CDMA communication,Spread spectrum receiver,Zero-IF despreading,Synchronization recovery, |