Ambient light interference suppression method and device and application thereof
The invention provides an ambient light interference suppression method, an ambient light interference suppression device and application thereof. The ambient light interference suppression method comprises the following steps: S00, transmitting a set number of laser pulses at a fixed first period i...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an ambient light interference suppression method, an ambient light interference suppression device and application thereof. The ambient light interference suppression method comprises the following steps: S00, transmitting a set number of laser pulses at a fixed first period interval; s10, the window SPAD is separated in a fixed second cycle period, so that the SAPD responds to the photons only in the enabling time period to generate pulses, and the TDC is triggered to output time information; s20, synchronizing the timing start of the TDC with the start of the emission period of the laser pulse, triggering the timing end time of the TDC by the first photon event corresponding to each emission period, and taking the measured time difference as the event time; and S30, making a statistical histogram according to the event arrival time obtained in each sampling period, finding a peak moment, and obtaining a target distance through the peak moment and the photon flight time. According to t |
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