| 摘要 |
<p>According to the present invention, there is provided a reception device comprising:
an expander for outputting an intermediate signal by frequency-converting a reception signal obtained by receiving a transmission signal of an ultra wide band system which is a communication signal used to transmit a data in a non-coherent manner; and
a pulse detector for discriminating a target pulse and an arrival time of the target pulse from the intermediate 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 short pulse waves included in the reception signal, the oscillator being intermittently operable in synchronization with the generation timings of the short pulse waves included in the reception signal; and
a mixer for outputting the intermediate signal by multiplying the reception signal and the station-transmitted signal,
characterized in that:
the communication signal includes short pulse waves successively indicating the same bit value a predetermined plurality of times set beforehand each time; and
the pulse detector includes an integrator for integrating the intermediate signal during a period of the plurality of times and a level determiner for outputting a result of binary level determination based on an integration result of the integrator as a pulse detection signal.</p> |
