1Bit极性重合相关器的研究

Investigation and Analysis of 1 Bit Polarity-Coincidence Correlator

介绍一种应用于水声系统的接收电路 :1Bit极性重合相关器。由于水下信号传输系统存在着 :通道之间的频率间隔小、易受噪声干扰、用电池供电而要求长时间工作等问题 ,相应地 ,接受电路就必须具有窄带滤波能力 ,抗噪声性能良好 ,并且功耗极低。而普通的模拟滤波器或数字滤波器无法全面地满足这些要求。 1Bit极性重合相关器极好地解决了这个问题 ,它不仅满足上述要求 ,而且有着结构简单、体积小、性能稳定等优点。作为水下信号传输系统的重要环节 ,1Bit极性重合相关器运行非常准确而且可靠 ,值得在水声系统中推广。

A receiving circuit applied to marine acoustics system, i.e 1 Bit Polarity Coincidence Correlator, is described. Normally, problems such as the narrow interval between channels, the noise disturbance, and the power supply with battery working long time, etc exist in marine acoustics signal transmission system. accordingly, the receiver should be characterized by narrowband filtering,high Signal to Noise Ratio and very low power dissipation. Normal analog filter or digital filter doesn't meet the demand. 1 Bit Polarity Coincidence Correlator exactly solves the problem. With its simple circuit configuration, good reliability and low power dissipation,the circuit will be used widely in marine acoustics system.