Title :
Analysis of envelope detector loss using arbitrary order Gram-Charlier series
Author :
Xiangwei Zhu ; Feixue Wang
Author_Institution :
Satellite Navigation & Positioning R&D Center, Nat. Univ. of Defense Technol., Changsha, China
Abstract :
The analysis of envelope detector performance is a fundamental and difficult problem in receiver design. In this paper, from the point of view of detector loss, the method of analyzing envelope detector performance with arbitrary order Gram-Charlier series is derived which is more accurate than the usual method - Barton empirical formula. Based on this, the effects on detector loss of three factors - video integration number, detection threshold and the input SNR of envelope detector - are analyzed and the accuracy of Barton empirical formula is also discussed. By choosing the proper order of Gram-Charlier series expansion and the validation of Monte Carlo simulation, the accuracy and fidelity of Gram-Charlier series expansion method is guaranteed. The methods can be used widely in receiver design.
Keywords :
Monte Carlo methods; losses; radar receivers; receivers; signal detection; video signal processing; Barton empirical formula; Gram-Charlier series expansion method; Monte Carlo simulation; arbitrary order Gram-Charlier series; detectability factor; detection threshold; detector loss factors; envelope detector loss analysis; envelope detector performance; input SNR; receiver design; video integration number; Doppler radar; Envelope detectors; Performance analysis; Performance loss; Radar detection; Research and development; Satellite navigation systems; Signal detection; Signal to noise ratio; Space vector pulse width modulation;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1345958