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| 非周期性DS信号的信息码片时宽估计方法 | |
| 引用本文： | 王满喜,李宏,马刈非,戴睿.非周期性DS信号的信息码片时宽估计方法[J].舰船电子对抗,2009,32(2). |
| 作者姓名： | 王满喜 李宏 马刈非 戴睿 |
| 作者单位： | 1. 解放军63880部队,洛阳,471003;解放军理工大学,南京,210007 2. 解放军63880部队,洛阳,471003 3. 解放军理工大学,南京,210007 |
| 摘 要： | 对非周期性直接序列（Ds）扩频信号的截获是电子战中的难题。提出了基于自相关差分累积量的搜索算法，能够在低信噪比、扩频调制比（信息比特持续时间和伪码周期之比）远小于1的条件下对非周期性DS信号的信息码片时宽进行准确估计，给出了其理论推导过程、算法步骤和仿真实验结果。 |
| 关 键 词： | 非周期性 直接序列扩频 码片时宽 自相关差分累积量 |
An Estimation Method for Information Bits Duration of Non-Periodic DS Signals |
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| WANG Man-xi,LI Hong,MA Yi-fei,DAI Rui.An Estimation Method for Information Bits Duration of Non-Periodic DS Signals[J].Shipboard Electronic Countermeasure,2009,32(2). | |
| Authors: | WANG Man-xi LI Hong MA Yi-fei DAI Rui |
| Affiliation: | 1.Unit 63880 of PLA;Luoyang 471003;China;2.PLA University of Science and Engineering;Nanjing;210007;China |
| Abstract: | The interception to the non-periodic direct sequence(DS) spread spectrum signals is a difficult problem in electronic warfare.This paper proposes a searching method based on the autocorrelation differential cumulant,which can give an exact estimation to the information bits duration of non-periodic DS signals under the condition that the signal to noise ratio(SNR) is low and the spread spectrum moduation ratio(ratio of information bit duration to PN period) is far below 1.Theory deduction process,algorithm ... |
| Keywords: | non-periodic direct sequence spread spectrum bit duration different ial cumulant of autocorrelation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
