全固态模拟电视发射机功放单元数字化改造

Digital reconstruction of power amplifier unit in all solid state analog TV transmitter

针对我国目前存在大量模拟发射机的现状,通过对河南省7个骨干台模拟发射机数字化改造实验,总结了在数字化过程中功放单元改造需要注意的问题,详细分析了地面数字电视发射中几个关键技术指标,并描述了相关技术指标调整和优化的具体过程。

In view of the present situation of a large number of analog transmitters, through the digital transformation experiment of seven transmitting stations, the problem of the improvement of the power amplifier unit in the digital transformation is summarized. Several key technical indicators in the ground digital TV transmission are analyzed in detail. And the specific process of adjustment and optimization of the related technology parameters are described.