| 摘要 |
PURPOSE: A frequency masking method is provided to selectively receive a signal in a receipt target frequency range and selectively eliminate a signal in a receipt prohibition frequency range. CONSTITUTION: A plurality of frequency ranges forming receipt target frequency information is integrated to generate a plurality of receipt target frequency ranges with a starting value and an terminating value(100, 120). A plurality of receipt prohibition frequency ranges with a starting value and an terminating value by integrating a plurality of frequency ranges forming receipt prohibition frequency information(115, 125). An overlapped range of the receipt target frequency ranges and the receipt prohibition frequency ranges is eliminated to extract a search frequency range.
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