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卫星直播车是指装载全套卫星直播车设备的专用车,也称“卫星新闻采访车”。卫星直播车卫星制播作业的运作原理在于利用地面台的卫星传送设备,将视音频讯号上传至卫星传递系统,经卫星转频器承转、放大与调制讯号后,下衔回卫星地面台由电视台接收。卫星直播车作为一个移动式发射站,电视台工作人员可随时将所在现场的信号通过卫星传送到电视台,电视台再从卫星接收信号进行实时播出,因此,卫星直播车成为电视节目新闻现场直播的重要技术支持手段。本文分析了卫星直播车的应用问题。
Satellite live broadcast car is loaded with a full set of satellite broadcast vehicle equipment, also known as “satellite news interviews car.” The operation principle of the satellite live broadcasting satellite broadcasting operation is to use the satellite transmitting equipment of the ground station to upload the video and audio signals to the satellite transmitting system and then to the satellite transmitting system via the satellite frequency converter to amplify and modulate the signals. TV reception. Satellite broadcast truck as a mobile transmitting station, the TV station staff at any time can be the scene of the signal transmitted to the satellite via television, television and then receive the signal from the satellite broadcast in real time, satellite live broadcast of the television broadcast news is important Technical support tools. This article analyzes the application of satellite live truck.