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http://dx.doi.org/10.9717/kmms.2012.15.3.364

A Study on Performance Improvement of CMMB Receiver to Reduce an Adjacent Channel Interference  

Yu, Yeong-Cheol (LG전자 Mobile Communications 연구소)
Publication Information
Journal of Korea Multimedia Society / v.15, no.3, 2012 , pp. 364-371 More about this Journal
Abstract
Currently, CMMB(China Mobile Multimedia Broadcasting) and the conventional analog TV broadcasting have transmitted by using UHF(Ultra High Frequency : 474MHz~754MHz) band. Normally, the transmission power of the digital TV broadcasting is lower than the conventional analog TV broadcasting to protect the reception quality of the conventional analog TV broadcasting. The reception sensitivity of CMMB receiver has severely deteriorated due to adjacent the conventional analog TV broadcasting signals which called ACI (Adjacent Channel Interference). To improve the reception sensitivity of a CMMB receiver on ACI environment, this paper proposed a simple method which is tuning a cut off frequency of LPF (Low Pass Filter). From the experiment, the reception sensitivity of CMMB receiver was improved as 11.3dB.
Keywords
CMMB; ACI; Digital Broadcasting;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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