| 摘要 |
The invention provides a reception time determining apparatus which can measure reception time to a high accuracy, without expanding an occupied bandwidth, and a distance measuring apparatus which uses the reception time determining apparatus. There is provided a reception time determining apparatus (11, 111) where a transmitter (1, 100) sends a transmission signal which produces a demodulation signal in which a signal change portion is unevenly distributed on a time axis, and there is provided: a demodulation section (12, 112) which receives and demodulates this transmission signal and outputs a demodulation signal in which a signal change portion is unevenly distributed on a time axis; a signal change portion detection section (13, 113) which detects the signal change portion of the demodulation signal which is output from the demodulation section (12, 112), and outputs a signal change portion detection signal; and a time measurement section (14, 114) which measures a reception time of the reception signal based on the signal change portion detection signal output from the signal change portion detection section (13, 113). |
