Patent ID: 8611394

Claim:
A reception device for receiving a transmission signal of an ultra wide band system, which is a communication signal used to transmit data in a non-coherent manner, comprising: an expander for outputting an intermediate frequency signal by frequency-converting a reception signal obtained by receiving the transmission signal; and a pulse detector for discriminating a target pulse and an arrival time of the target pulse from the intermediate frequency signal and outputting a pulse detection signal, wherein: the expander includes: an oscillator for outputting a station-transmitted signal having a frequency different from a center frequency of the reception signal and a waveform independent of the phase and waveform of pulse waves included in the reception signal, and a mixer for outputting the intermediate frequency signal by multiplying the reception signal and the station-transmitted signal, wherein the oscillator intermittently operates in synchronization with generation timings of the pulse waves included in the reception signal, the pulse waves successively indicate the same bit value a predetermined number of times set beforehand, and the pulse detector includes an integrator for integrating the intermediate frequency signal during a period corresponding to the predetermined number of times, and a level determiner for outputting a result of binary level determination based on an integration result of the integrator as the pulse detection signal.