INTERFERE AVOIDING DEVICE OF AN ULTRA WIDEBAND SIGNAL RECEIVER CAPABLE OF ACCURATELY DETECTING AN INTERFERE TARGET SIGNAL

摘要

PURPOSE: An interfere avoiding device of an ultra wideband signal receiver is provided to change a frequency band of an interfere target signal by artificially adding a frequency offset of a range smaller than a possession bandwidth of the interfere target signal to an ultra wideband signal including the interfere target signal.;CONSTITUTION: An FFT(Fast Fourier Transform) input buffer(400) receives an ultra wideband signal including an interfere target signal. A frequency offset unit(408) adds a preset frequency offset to the ultra wideband signal. An FFT converting unit(404) performs the FFT of the ultra wideband signal to which the offset is added. An interference avoiding unit(406) detects the interfere target signal from the FFT ultra wideband signal. If receiving power of the interfere target signal is greater than a preset reference level, the interference avoiding unit changes an ultra wideband communication channel to avoid interference.;COPYRIGHT KIPO 2013;[Reference numerals] (400) FFT input buffer; (404) FFT converting unit; (406) Interference avoiding unit; (408) Frequency offset unit(NCO)