数字图象m-QAM传输的研究
摘 要
介绍了适用于高速数字HDTV传输的m-QAM方式，给出了64QAM格雷码的编、解码逻辑及格雷码星座。分析了m-QAM特性并对其传输性能进行了计算机模拟。
关键词
Study for m QAM Digital Image Transmission
() Abstract
This paper describes a m QAM method suitable for high speed digital HDTV transmission.Both Gray code logic of coding/decoding and constellation for 64QAM are given.The characteristics of m QAM are analyzed and the computer simulation for studing the transmission properties has been carried out.
Keywords
Digital image transmission Multi level quadrature amplitude modulation Gray code Power spectrum density Error code rate
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