Title :
The influence of adjacent channel interference on FM communication system
Author :
Bo, Zhao ; Houde, Quan ; Huiqiang, Zhao
Author_Institution :
Opt. & Electron. Eng. Dept., Ordnance Eng. Coll., Shijiazhuang, China
Abstract :
Assembling many radio stations in a same vehicle or networking of radios is likely to induce serious self-interference, such as adjacent channel, co-channel and intermodulation interference. This text mainly investigates the adjacent channel interference (ACI) of FM signal. In order to deeply analyze the influence of ACI and White Gaussian noise on FM communication system, a new Hilbert demodulation method of software radio is introduced, and its realization method is deduced in detail. Accordingly, ACI model of FM communication system is established, and the influence of ACI interference is estimated through calculating the distortion of the speech signal demodulated. Finally, some useful conclusions are obtained through comparing the demodulation results of the new Hilbert demodulation and the traditional amplitude frequency discriminator (AFD).
Keywords :
Gaussian noise; adjacent channel interference; frequency modulation; radio stations; software radio; white noise; FM communication system; FM signal; Hilbert demodulation method; adjacent channel interference; amplitude frequency discriminator; co-channel interference; intermodulation interference; radio networking; radio stations; self-interference; software radio; speech signal demodulation; vehicle; white Gaussian noise; Automotive engineering; Bandwidth; Baseband; Demodulation; Distortion; Filters; Frequency; Interchannel interference; Signal analysis; Vehicles; ACI; AFD; Distortion; FM; Hilbert Demodelation;
Conference_Titel :
Wireless Communications & Signal Processing, 2009. WCSP 2009. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4856-2
Electronic_ISBN :
978-1-4244-5668-0
DOI :
10.1109/WCSP.2009.5371662
