METHOD FOR REDUCING INTERFERENCE FROM ADJACENT CHANNELS FOR RECEIVERS OF FREQUENCY MODULATED SIGNALS OF DIGITAL AUDIO BROADCASTING Russian patent published in 2007 - IPC H04H1/00 

Abstract RU 2310988 C2

FIELD: technology for receiving audio broadcasting signals.

SUBSTANCE: method for receiving frequency-modulated signal of digital audio broadcasting, including first and second sets of sub-carriers respectively in upper and lower side band of radio channel, contains steps of mixing of digital audio broadcasting signal with heterodyne signal, letting through of intermediate frequency signal through band filter, determining presence of distortion of upper or lower side band of digital audio broadcasting signal, application of frequency shift to heterodyne signal for ensuring change of frequency of signal of intermediate frequency, at which band filter removes sub-carriers in distorted upper or lower side band. The receiver realizes the method.

EFFECT: minimized influence of first neighboring interferences in received signals.

2 cl, 5 dwg

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RU 2 310 988 C2

Authors

Kreger Brajan V.

Dates

2007-11-20Published

2003-04-21Filed