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本文在最佳检测理论背景下,就信号和传输系统两个核心问题,探讨了实际水情数据传输系统设计中必然碰到的几个理论问题。即信号带宽与码速率、误码率与信噪比、信噪比与信号强度、电平余量与可靠度等,并阐述了太阳能电源及天线避雷等问题。为增强实际指导意义,还提供了有参考价值的图表。由于本文是以调频 FM 电台作系统设计时所碰到的疑难问题为素材的,故有很强的针对性。
In this paper, under the background of the best detection theory, several theoretical issues that inevitably come into being in the design of actual hydrological data transmission system are discussed in terms of two core issues of signal and transmission system. Namely the signal bandwidth and code rate, bit error rate and signal to noise ratio, signal to noise ratio and signal strength, level margin and reliability, etc., and describes the solar power and antenna lightning protection and other issues. To enhance the practical guidance, but also provides a reference value of the chart. This article is based on the FM FM radio system design problems encountered as the material, so there is a strong pertinence.