Importance

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Abstract

A signal processing unit selects signal components included in the frequency bands of respective channels from a burst signal input from a terminal, and outputs the selected signal components to a memory after they are converted into digital data. A frequency switching unit sequentially switches the frequency bands at a predetermined time interval in correspondence with the respective channels. A data write unit stores the digital data in the memory for every channel in response to switching of the frequency bands. A data read-out unit reads out data from the memory, specifies the timing of the burst signal, and reads out necessary data for every channel on the basis of the specified timing. A power arithmetic operation unit calculates electric power of each channel based on the readout data, thus obtaining the adjacent and alternate channels power.

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First Claim