A USEFUL FORM OF BARANKIN LOWER BOUND AND ITS APPLICATION TO PPM THRESHOLD ANALYSIS

被引:67
作者
MCAULAY, RJ
SEIDMAN, LP
机构
[1] M.I.T. Lincoln Laboratory, Lexington
[2] Bell Telephone Laboratories, Inc., Whippany
关键词
D O I
10.1109/TIT.1969.1054297
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A form of Barankin's greatest lower bound on estimation error [7] is obtained, which is easy to compute and easy to interpret. This gives a lower bound on estimation error for nonlinear modulation systems in an additive Gaussian noise back-ground. Threshold effects are included. This bound is applied to a set of pulse-position modulation waveforms designed to reduce threshold effects. It is shown that these signals do, in fact, offer reduced threshold levels (e.g., ≈ 3.5 dB) with very small (≈ dB) degradation in large signal performance. © 1969 IEEE. All rights reserved.
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页码:273 / +
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