摘要
本文对电视接收机的视频通道噪声功率互换前后进行了讨论。根据CCIR推荐的加权网络,采用加权压缩后对图象质量的实际受损情况进行修正,使被测结果与主观评价一致。
The present paper discusses the noise powers of the video channel before and after their exchange. Applying the weighted compression, I revise the actual damage of the image quality in acordance with the weighted network recommended by the CCIR, so that the test result accords with the subjective evaluation.
出处
《五邑大学学报(自然科学版)》
CAS
1997年第4期33-37,共5页
Journal of Wuyi University(Natural Science Edition)
关键词
噪声功率
幅频特性
加权压缩
视频通道
电视
Noise Power, Property of Amplitude Frequency, Weighted Compression