Peterson算法在场消隐期传输中的应用

Realization of Peterson Algorithm In VBI Transmission

场消隐期作为应用电视有限资源的一部分,其开发潜力正逐渐为人们所重视。本文提出了一种新型的综合数据传输业务的单缆传输电视监控系统,将控制信号搭载在视频信号通道上运行,并以Peterson算法和Chien氏搜索法为基础,将无线通信中常用的(15,7)BCH控制编码应用于底层的单片机级的信号传输中,同时给出了相应的软件解码方法,在优化控制信号的传输线路和解决时延问题的同时,大大提高了实时数据通信的有效性和可靠性,从而达到了利用电视信号逆程资源的目的。

Vertical Blanking Interval is a part of the limited resource of television, More people begin to attach importance to its potenee gradually. This paper introduces a design scheme using a single coaxial-cable to transmit video signals and control signals simultaneously. Binary BCH code is widely applied in dynamic and real-time wireless communication and rarely put into action among the process of mierocontrollers. This design scheme presents a method to decoding binary BCH, which is based on Peterson algorithm and Chien＇s search algorithm. It optimizes the transmission circuit for control signals and solves the problem of time-delaying, thereby it promotes the transmission more efficiently and more economically.