| 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. |
| Revised:January 07, 2002 |
| 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, |
