| 一种适合于非相干直扩信号捕获的方法 |
| |
| 引用本文： | 张谦,侯鹰.一种适合于非相干直扩信号捕获的方法[J].无线电通信技术,2006,32(5):48-50. |
| |
| 作者姓名： | 张谦 侯鹰 |
| |
| 作者单位： | 北京通信与跟踪技术研究所,北京,100094 |
| |
| 摘 要： | 介绍了非相干直接序列扩频的基本概念,并建立了非相干直接序列扩频信号基带传输模型;在此基础上研究了直接序列扩频中捕获的难点,并提出一种基于后相关滤波和功率检测的捕获方法;最后,根据工程需要对系统进行了简化。仿真结果表明提出的捕获方法是适合非相干直接序列扩频的,且性能接近相干直接序列扩频。
|
| 关 键 词： | 非相干直接序列扩频 后相关滤波器 功率检测 |
| 文章编号： | 1003-3114（2006）05-48-3 |
| 收稿时间： | 2006-01-08 |
| 修稿时间： | 2006-01-08 |
An acquisition scheme for non-coherent DSSS signal |
| |
| ZHANG Qian,HOU Ying.An acquisition scheme for non-coherent DSSS signal[J].Radio Communications Technology,2006,32(5):48-50. |
| |
| Authors: | ZHANG Qian HOU Ying |
| |
| Institution: | Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China |
| |
| Abstract: | A base-band model for non-coherent DSSS(Direct Sequence Spread Spectrum)signal is built after its basic conception is introduced.Based on the analysis of non-concerned DSSS signal,a new acquisition scheme on basis of post-correlation filtering and power detecting is presented.At last,the proposed scheme is simplified to reduce the hardware complexity.The simulation result shows that the proposed scheme is adapted to non-concerned DSSS signal,and its performance is similar with the coherent DSSS signal. |
| |
| Keywords: | non-coherent DSSS post-correlation filtering power detecting |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
