| 直扩信号检测与估计的改进 |
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| 引用本文： | 王剑 贾坤 朱银川 何华武. 直扩信号检测与估计的改进[J]. 电讯技术, 2004, 44(1): 44-47 |
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| 作者姓名： | 王剑 贾坤 朱银川 何华武 |
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| 作者单位： | 南京理工大学,自动控制系,江苏,南京,210014;中国西南电子技术研究所,四川,成都,610036 |
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| 摘 要： | 对低信噪比下直接序列扩频(DS／SS)信号的检测和估计提出了一种新的改进思路。在通常数值处理前加设一预处理模块，该模块能改善白噪声背景下信号的信噪比，从而为进一步提高低信噪比信号检测与估计的能力给出了一条新的途径。
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| 关 键 词： | 直扩信号 卡尔曼滤波 信号检测 |
| 文章编号： | 1001-893X(2004)01-0044-04 |
Improvement of Detection and Blind Estimation of Direct Sequence Spread Spectrum Signal |
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| WANG Jian,JIA kun,ZHU Yin-chuan,HE Hua-wu. Improvement of Detection and Blind Estimation of Direct Sequence Spread Spectrum Signal[J]. Telecommunication Engineering, 2004, 44(1): 44-47 |
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| Authors: | WANG Jian JIA kun ZHU Yin-chuan HE Hua-wu |
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| Affiliation: | WANG Jian~1,JIA kun~2,ZHU Yin-chuan~2,HE Hua-wu~2 |
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| Abstract: | A new improved idea of detection and blind estimation of direct sequence spread spectrum signal in low SNR is presented. A pre-processing module is put before normal numerical processes, which can mend SNR of imput signal in white noise. So a new approach to improve the ability of detection and blind estimation of signal in low SNR is given. |
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| Keywords: | DS/SS signal Kalman filter Signal detection |
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