An Experimental Study of HDTV Noise Weighting Network
1991 Volume 45 Issue 8 Pages 992-997
Details
1991 Volume 45 Issue 8 Pages 992-997
CCIR recommends a practical method for measuring the noise in existing TV systems such as NTSC, PAL, and SECAM. The method requires only a simple passive network, called the weighting network, between a noise source and an r. m. s. meter. The present paper examines an HDTV noise-weighting network by subjectively assessing existing TV and HDTV noise disturbances. The bridge-T type network with a time constant of 90 ns works well for HDTV. From a view point of practical use, a 120 ns network can be used for existing TV and for HDTV.
The Proceedings of the Circle of Television Engineers
The Proceedings of the Institute of Television Engineers
The Proceedings of the Institute of Television Engineers
The Institute of Image Information and Televistion Engineers
The Journal of the Institute of Television Engineers of Japan
