DocumentCode
924224
Title
The relationship between an adaptive quantizer and a variance estimator (Corresp.)
Author
Cohn, David L. ; Melsa, James L.
Volume
21
Issue
6
fYear
1975
fDate
11/1/1975 12:00:00 AM
Firstpage
669
Lastpage
671
Abstract
In this correspondence, it is shown that an adaptive quantizer with a one word memory can be viewed as one that estimates the variance of its input and normalizes the input by the square root of the estimate. It is shown that, even though the estimate is an exponential average, the effect of transmission errors does not die out. Finally, a method of combating the effect of such errors is described.
Keywords
Adaptive methods; Quantization (signal); Signal estimation; Signal quantization; maximum-likelihood (ML) estimation; Dynamic range; Maximum likelihood estimation; Nearest neighbor searches; Performance analysis; Speech;
fLanguage
English
Journal_Title
Information Theory, IEEE Transactions on
Publisher
ieee
ISSN
0018-9448
Type
jour
DOI
10.1109/TIT.1975.1055465
Filename
1055465
Link To Document