Frequency error measurement in GMSK signals in a multipath propagation environment

被引：7

作者：

Aiello, A ^{[1
]}

Grimaldi, D

机构：

[1] Univ Sannio, Dept Engn, Benevento, Italy

[2] Univ Calabria, Dipartimento Elettron Informat & Sistemist, I-87036 Arcavacata Di Rende, CS, Italy

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2003年 / 52卷 / 03期

关键词：

frequency error; Gaussian minimum shift-keying (GMSK) modulation; learning vector quantization (LVQ) neural network;

D O I：

10.1109/TIM.2003.814680

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents an efficient method for evaluating the carrier frequency error in Gaussian minimum shift-keying (GMSK) communication systems. This method operates in a nonintrusive way. It uses the learning vector quantization neural network-sbased demodulator for reconstructing the transmitted phases. From these and the. expected phases, the carrier frequency error is estimated. The method is able to operate both in static. and multipath propagation cases, and as the base-band signal is processed, it does not require a high frequency sampling rate. In order to apply the method, two procedures, procedure for static propagation and procedure for multipath propagation, are set up. Tests performed on GMSK signals show that the method is attractive, fast, and more accurate if compared with other approaches.

引用

页码：938 / 945

页数：8

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