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随着现代数字信号处理、超大规模集成电路以及通信技术的迅速发展,数字电视技术已经逐渐走向成熟,并将最终取代模拟电视技术,为我们提供更加优质的服务。数字电视地面广播作为数字电视标准中最为复杂的一个,在我国有着广阔的应用前景。从系统的总体结构、工作流程、软件接收机等方面描述了基于DTV的定位系统方案,对定位系统的基础—数字电视接收机的工作原理做了详细的分析,简要地给出了定位实现的原理。
With the rapid development of modern digital signal processing, very large-scale integrated circuits and communication technologies, digital television technology has gradually become mature and will eventually replace analog TV technology to provide us with even better services. As one of the most complicated digital television standards, digital terrestrial television broadcasting has broad application prospects in our country. Describes the positioning system based on DTV from the overall structure of the system, workflow, software receiver and other aspects of the positioning system based on the working principle of a digital television receiver made a detailed analysis of a brief overview of the positioning principle.