| 分段相关累加算法提取直扩信号伪码周期 |
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| 引用本文： | 孙家旺,沈青峰,袁亮. 分段相关累加算法提取直扩信号伪码周期[J]. 现代防御技术, 2006, 34(1): 73-75 |
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| 作者姓名： | 孙家旺 沈青峰 袁亮 |
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| 作者单位： | 1. 北京理工大学,电子工程系,北京,100081
2. 中国航天科工集团公司,二院二部,北京,100854 |
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| 摘 要： | 针对低信噪比直接序列扩频(DS/SS)信号伪码周期难以检测的问题,特别是加信码的直扩信号,提出了一种新的分段相关模值累加检测方法和相应的快速算法。计算机仿真表明,在信号带宽内信噪比为-12 dB时,能够快速有效地检测直扩信号的伪码周期。
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| 关 键 词： | 直扩信号 相关检测 伪码周期 |
| 文章编号： | 1009-086X(2006)01-0073-03 |
| 修稿时间： | 2005-06-13 |
A new segment correlation and amplitude accumulation method of direct sequence spread spectrum signal pseudorandom code period |
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| SUN Jia-wang,SHEN Qing-feng,YUAN Liang. A new segment correlation and amplitude accumulation method of direct sequence spread spectrum signal pseudorandom code period[J]. Modern Defence Technology, 2006, 34(1): 73-75 |
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| Authors: | SUN Jia-wang SHEN Qing-feng YUAN Liang |
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| Abstract: | A new detection method based on segment correlation and amplitude accumulation to solve the difficulty of periodic detection and estimation of pseudorandom sequence in DS/SS signal with low SNR and modulated information was proposed.And then a fast algorithm is raised for the segment correlation and amplitude accumulation.The results of computer simulation show that when the SNR is-12 dB,the method is fast and effective to detect the pseudorandom code period in DS/SS signal with modulated information. |
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| Keywords: | Direct sequence spread spectrum signal(DS/SS) Correlation checkout(detection) Pseudorandom code period |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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