Distance-measurement apparatus and distance-measurement method
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United States of America
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Feb 18, 2025
Grant Date -
Nov 18, 2021
app pub date -
Oct 17, 2018
filing date -
Oct 17, 2018
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Abstract
A generation unit (2) generates a plurality of transmission pulses of which the strength of an optical signal changes in a pulse-like manner. Note that the generation part (2) generates a plurality of transmission pulses having frequency offsets different from each other. The transmission unit (4) repeatedly transmits transmission pulses generated by the generation unit (2). The reception part (6) receives reflected pulses of the respective transmission pulses reflected on a distance-measurement-target object. The detection unit (8) detects the frequency offsets of the reflected pulses received by the reception unit (6). The distance calculation unit (10) calculates a distance to the distance-measurement-target object based on the receiving timings of the reflected pulses received by the reception unit (6) and the transmitting timings of the transmission pulses corresponding to the frequency offsets detected from the reflected pulses.
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