The undesired signal distinction device, undesired signal distinction manner, the undesired signal distinction program, the code being the undesired signal distinction device which

摘要

To achieve the required signal determining device that can accurately determine the unwanted signal from [challenge] the received signal. [MEANS FOR SOLVING PROBLEMS] 321~32n correlator outputs the correlation data by correlation processing every predetermined timing and replica code and the received signal. Stores a predetermined sampling few minutes along the code phase axis correlation data, 331~33n buffer, and outputs it to the determination unit 35 and the FFT processing 341~34n. Obtains the frequency spectrum by FFT processing the correlation data corresponding to a predetermined number of sampling, FFT processing 341~34n outputs to the determining section 35. Determination unit 35, which is to get the properties of the correlation data in the two-dimensional region of the frequency axis and the code phase axis from the frequency spectrum and correlation data column in the code phase axis, to match the characteristics of the unwanted signal from the characteristic I determine as unwanted signal, the. [Selection Figure Figure 2