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随着全球广播电视全面向网络化、数字化进发,广播电视节目从制作、播控、发送到接收都将逐渐全面数字化,并可对各环节进行必要的网络实时监控,从而保证性能可靠性的提高和处理环节的智能化。卫星通信地球站主要构成设备有天线设备、高功率放大设备、低噪声接收设备、变频设备和相应的调制解调设备所构成。本文就典型的广播电视卫星地球站的系统设备及测试监控系统的基本要素进行了探讨。
With the global radio and television network to the full, digital technology, radio and television programs from the production, broadcast control, send to receive will be fully digital, and all aspects of the network real-time monitoring necessary to ensure the reliability of the performance increase And intelligent processing. The satellite communication earth station mainly consists of an antenna device, a high-power amplification device, a low-noise receiving device, a frequency conversion device and a corresponding modulation and demodulation device. This article discusses the basic elements of the system equipment and test monitoring system of a typical radio and television satellite earth station.