低噪声低混响主动声引信接收机设计
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摘要
接收机的信号预处理能力直接影响着主动声引信的工作性能,为了提高主动声引信接收机的可靠性,本文分析了声引信接收机原理,设计了一款低噪声混响抑制声引信接收机。该接收机具有结构简单、低噪声、高增益、大动态范围等特点。介绍了主动声引信接收机的工作原理及组成,给出了其关键电路低噪前放及陷波器设计。经湖上试验测试表明该接收机符合设计要求,各项指标均满足要求。
Signal pre-processing capabilities of acoustic decoy receiver has direct effect on the work performance of active acoustic fuse. A kind of low noise reverberation-suppression receiver is designed aimed at improving the reliability of the receiver. The results of the test show that the acoustic fuse receiver has the characteristics of simple structure, low noise, high gain, wide dynamic range. This paper introduces the operating principle and constitution of receiver, represents the design method of the key circuit such as preamplification circuit and notch filter circuit. The test results show the receiver is well and achieve the require.
引文
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