地面无线数字电视系统传输覆盖技术与优化措施

Terrestrial Wireless Digital Television System Transmission Coverage Technology and Optimization Measures

近年来,地面无线数字电视系统在城乡文化建设工作中发挥了重要作用,优势主要体现在便捷性、经济性、功能性及灵活性等方面。地面无线数字电视系统的传输主要应用多频网、单频网、综合组网技术,发射物理参数、接收物理参数、发射频率、极化方式及信道调制器参数等都会影响信号传输的质量和效率。为优化传输覆盖技术,工程建设应当注重从信号发射端和接收端加以改进。为此,介绍地面无线数字电视系统的传输覆盖技术与优化措施。

In recent years,terrestrial wireless digital television system has played an important role in the construction of urban andru ral culture,and its advantages are mainly reflected in the aspect sof convenience,economy,functionality and flexibility.The tarnsmission of terrestrial wireless digital television system mainly uses multi-frequency network,single frequency network and integrated networking technology.The transmitting physical parameters,receiving physical parameters,transmitting frequency,polarization mode and channel modulator parameters will affect the quality and efficiency of signal transmission.In order to optimize transmission coverage technology,engineering construction should focus on improving the signal rtansmitting end and receiving end.Therefore,this paper introduces the transmission coverage technology and optimization measures of terrestrial wireless digital television system.