共 4 条
- [1] MAX J, 1960, IEEE T INFORM THEORY, VIT6, P7
- [2] ROE GM, 1964, IEEE T INFORMATION T, VIT10, P384
- [3] Widrow B., 1956, IRE T CIRCUIT THEORY, V3, P266, DOI DOI 10.1109/TCT.1956.1086334
- [4] WOOD RC, 1966, THESIS U CALIFORNIA
ON OPTIMUM QUANTIZATION
被引：54
作者：
WOOD, RC
机构：
[1] Department of Electrical Engineering, University of California, Santa Barbara
关键词：
D O I：
10.1109/TIT.1969.1054285
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The problem of minimizing mean-square quantization error is considered and simple closed form approximations based on the work of Max and Roe are derived for the quantization error and entropy of signals quantized by the optimum fixed-N quantizer. These approximations are then used to show that, when N is moderately large, it is better to use equi-interval quantizing than the optimum fixed-N quantizer if the signal is to be subsequently buffered and transmitted at a fixed bit rate. Finally, the problem of optimum quantizing in the presence of buffering is examined, and the numerical results presented for Gaussian signals indicate that equilevel quantizing yields nearly optimum results. © 1969 IEEE. All rights reserved.
引用
收藏
页码：248 / +
相关论文