Distributed Source Coding: Theory and Practice by Shuang Wang & Yong Fang & Samuel Cheng

Author:Shuang Wang & Yong Fang & Samuel Cheng [Wang, Shuang]
Language: eng
Format: azw3, mobi
ISBN: 9781118705988
Publisher: Wiley
Published: 2017-01-04T16:00:00+00:00

Variance computation: according to the variance definition of a random variable , where is the expectation operator, the variance at different granularity levels can be obtained by averaging the variance on the corresponding levels: Frame level: all the samples in each frame are characterized by the same variance. The estimated variance of the residual frame is 9.16

Block level: all the samples in each block of the frame have the same variance. First, the residual frame th block can be obtained as 9.17

Then the averaged variance of the frame th block is

9.18

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