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我国大中型城市的有线电视主要采用同轴电缆和光纤的方式传播电视信号,而在一些偏远山区,进行大规模的线缆铺设实现有线电视的传播是具有很大的难度的。而数字电视无线发射系统技术的出现解决了这一难题,他通过多路微波分配系统用无线的方式将数字电视信号直接发送到用户家中,为用户提供了价格实惠、节目多的数字电视节目信号。本文就将结合我国数字电视无线发射系统技术的现状,对无线数字电视信号发射系统的技术方案予以分析。
In China’s large and medium-sized cities, cable television mainly uses coaxial cables and optical fibers to transmit television signals. In some remote mountainous areas, it is quite difficult to carry out large-scale cable laying to realize the transmission of cable television. The emergence of digital TV wireless transmission system technology to solve this problem, he through the multi-channel microwave distribution system wirelessly send digital TV signals directly to the user’s home, to provide users with affordable, multi-program digital television program signals . This article will be combined with China’s digital TV wireless transmission system technology status quo, wireless digital television signal transmission system to be analyzed.