Anti-interference automatic channel search method and device for radio receiver

Abstract

The invention discloses an anti-interference automatic channel search method for a radio receiver. The method comprises the steps that the radio receiver searches for channels automatically, and receives frequency point signals meeting the channel stopping condition; according to the frequency of the frequent point signals, a data table is inquired, and whether the frequent point signals are prestored radio signals or not is judged; the corresponding relation of the radio signals and the frequency is recorded in the data table; if the frequent point signals are the prestored radio signals, the radio receiver carries out tuning; if the frequent point signals are not the prestored radio signals, the frequency of the frequent point signals is marked as interference signals, the frequent point signals are ignored, and tuning is not carried out. The invention further correspondingly discloses an anti-interference automatic channel search device for the radio receiver. According to the technical scheme, the interference signals can be effectively suppressed in the automatic channel search process of the radio receiver, the interference signals are prevented from being wrongly marked as an effective radio receiver, and the listening efficiency of the radio receiver is improved.

Description

technical field [0001] The invention relates to the technical field of radios, in particular to a method and device for anti-jamming automatic channel search of radios. Background technique [0002] At present, radio has been widely used in people's lives. [0003] Common radios have the function of automatic station search. For example, for radios based on LC-type oscillating circuits, tuning is mostly carried out with variable capacitors, while the popular method for digital tuning radios is frequency synthesis. Automatic station search, starting from the low end of the frequency, when the radio finds a station, it will accurately tune and record the frequency data, and then continue to search for stations to the high end of the frequency (for example, it can be controlled by buttons or automatically search to the high end of the frequency) . [0004] The inventor found in the research that the radio often encounters strong interference signals during the use of automat...

AI Technical Summary

Problems solved by technology

[0004] The inventor found in the research that the radio often encounters strong interference signals during the use of automatic station search. At this time, the radio will mistakenly record the interference signals as valid stations, which is not conducive to users' effective listening and reduces the listening efficiency

Images