扩频通信在强噪声环境中的应用

扩频通信是矿井等强噪声环境中最有效的通信方式。分析了传统通信方式在强噪声环境中存在的主要问题,介绍了扩频通信技术的抗干扰原理和特点,指出扩频抗干扰技术特别适用于强噪声环境,能降低通信系统对信噪比的高要求,克服机电噪声引起的抗干扰能力弱、通信质量差以及可靠性低等弱点。最后介绍了扩频码发生器及其相关特性。

Application of Spread Spectrum Communication in a Strong Noise Environment

Spread spectrum communication is the most efficient mode in the strong noise environment such as the coal mine.This article analyses the main problem of traditional communication in the strong noise environment,introduces the principle and characteristics of spread spectrum communication.It indicates that the spread spectrum anti-jamming technique is especially applicable to the strong noise environment.The spread spectrum communication can reduce high demand to the signal-to-noise ratio,especially can overcome some defects caused by multiple-path effect and noise,including weak anti-interference ability and poor speech quality.The article also introduces the m-sequences generator and its relavant features at last.