Abstract: A reception device is provided with an expander for frequency-converting a reception signal, by multiplying a station-transmitted signal output from an oscillator and having a frequency different from a center frequency of the reception signal, and the reception signal, and outputting an intermediate signal. The oscillator intermittently operates in synchronization with generation timings of short pulse waves included in the reception signal. Thus, the reception device can reduce power consumption more using an ultra wide band (UWB) communication system.

Abstract: A reception device according to the present invention is provided with an expander for frequency-converting a reception signal by multiplying a station-transmitted signal output from an oscillator and having a frequency different from a center frequency of the reception signal and the reception signal and outputting an intermediate signal. The oscillator intermittently operates in synchronization with generation timings of short pulse waves included in the reception signal. Thus, the reception device according to the present invention can reduce power consumption more using a UWB communication system.

Abstract: A radio receiving apparatus of the present invention is for receiving a radio signal having pulsating signals occurring at specific periods, wherein the radio receiving apparatus corrects signal levels received during communication in individual regions into which each of the aforementioned periods is divided based on signal levels received in the individual regions under conditions where the radio signal is not received. As a result of this correction, the radio receiving apparatus of the present invention can decrease the influence of noise having periodicity and improve reliability of communication.