甚低频遥控水雷全向数字接收机的研究

Research of All-around Digital Receiver Based on Very Low Frequency Remote-Controlled Naval Mine

基于对水雷接收系统灵敏度的分析,提出一种可以用微机软件完成的甚低频水下通信全向接收新方法,完成数字化全向接收的理论推导。经证明可以用软件代替甚低频遥控水雷接收机的主要硬件,从而使复杂的两次变频超外差式接收电路,模拟鉴相电路等全部简化。用此技术研制的接收机将在性能、可靠性和灵敏度等各方面都会有很大提高。

Based on analysing sensitivity of receiving system of the naval mine, a new method which can use microcomputer software to accomplish all - around receive underwater of Very Low Frequency（VLF）. The theory of digital all - around technology is derived in this article,and it proves that can use software substitute the main part of hardware of the naval mine receiver. And simplifies the sophisticate reception circuit which is two frequency conversions superheterodyne reception circuit and analogue phase demodulation circuit. The capability, reliability and sensitivity of the receiver by this technology are improved greatly.