| 数字匹配滤波系统输出信噪比与采样速率的关系 |
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| 引用本文： | 张群英,杨学贤,韩月秋.数字匹配滤波系统输出信噪比与采样速率的关系[J].系统工程与电子技术,1999,21(10). |
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| 作者姓名： | 张群英 杨学贤 韩月秋 |
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| 作者单位： | 北京理工大学电子工程系,100081 |
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| 摘 要： | 论述了数字匹配滤波系统及其实现,讨论了采用数字方法在频域实现匹配滤波的信号处理系统中,匹配滤波器实现中的两个实际问题。分析了信号的数字频谱,并在此基础上,推导了系统输出信噪比与系统采样速率的关系。得到了随着系统采样速率的提高,匹配滤波器的噪声带宽减小,输出信噪比提高的结论。计算机仿真验证了该结论的正确性。
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| 关 键 词： | 匹配滤波器 噪声测量 信噪比 信号处理 |
| 修稿时间： | 1998年7月28日 |
Relation of Sampling Rate and SNR in Digital Matched Filter System |
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| Zhang Qunying,Yang Xuexian,Han Yueqiu.Relation of Sampling Rate and SNR in Digital Matched Filter System[J].System Engineering and Electronics,1999,21(10). |
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| Authors: | Zhang Qunying Yang Xuexian Han Yueqiu |
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| Abstract: | Digital matched filter system and its realization are discussed. Two problems about digital matched filter realization and digital spectrum of signal are analyzed. And on the basis of the analysis, the relation between sampling rate and signal to noise ratio is deduced in this paper. A very beneficial conclusion is achieved and it is proved by the computer simulation. |
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| Keywords: | Matched filter Noise bandwidth Signal to noise ratio |
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