论文部分内容阅读
本文详细阐述了数字电视接收马赛克现象产生的技术原因原理、检修方法、对应措施,并对QAM解调原理参数条件、QAM调制原理、噪声容限、相位噪声、多径效应对载噪比门限、噪声余量、误码率、星座图的影响进行了简明的论述。
In this paper, the causes, maintenance methods and corresponding measures of digital television reception mosaic are elaborated, and the parameters of QAM demodulation principle, QAM modulation principle, noise margin, phase noise, multipath effect, Noise margin, bit error rate, constellation of the impact of a concise discussion.