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Research on the third-order intermodulation signal characteristic and demodulation product of communication radio
By:Yuan Shiji; Dong Jun; Qiu Bingyi
2017 International Conference on Computer, Information and Telecommunication Systems (CITS)
Pages: 54-7  
DOI: 10.1109/CITS.2017.8035292  
Published: 2017  

Conference
Conference:2017 International Conference on Computer, Information and Telecommunication Systems (CITS)
Locationalian, China
Date:21-23 July 2017
Abstract
The intermodulation interference of communication radio affect the normal communication, in which the third-order intermodulation interference can not be avoided. In this paper, the signal characteristics of the third-order intermodulation interference are studied, and the envelope expression of the third-order intermodulation products of different modulation styles and the mathematical expression of the demodulator are deduced. The conclusion of the interference source signal characteristics can be obtained using the corresponding demodulation method. The actual test results show that the demodulation of third-order intermodulation products of AM and AM signals cannot demodulate the original signal using envelope detector. The demodulation of third-order intermodulation products of FM and FM signals can demodulate the original signal. The demodulation of third-order intermodulation products of AM and FM signals can demodulate the original signal in a particular situation.
Author Information
Author Address: Yuan Shiji; Dong Jun; Qiu Bingyi; State Key Lab. of Complex Electromagn. Environ. Effects on Electron. & Inf. Syst., Luoyang, China.
Publisher
IEEE, Piscataway, NJ, USA
Categories / Classification
Research Areas:Telecommunications (provided by Clarivate Analytics)
International Patent Classification:H04B7/00 Radio transmission systems, i.e. using radiation field; H04W Wireless communication networks; H04W84/18 Self-organising networks, e.g. ad hoc networks or sensor networks
Classification Code(s):B6250 Radio links and equipment; B5230 Electromagnetic compatibility and interference
Controlled Indexing:intermodulation; radiocommunication; radiofrequency interference
Uncontrolled Indexing:third-order intermodulation signal; demodulation product; communication radio; third-order intermodulation interference; mathematical expression
Document Information
Document Type:Conference Paper
Language:English
Accession Number:INSPEC:17175237
ISBN:978-1-5090-5957-7
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