Device and method for pulse laser ranging

Device and method for pulse laser ranging

  • CN 103,018,749 B
  • Filed: 12/31/2012
  • Issued: 06/10/2015
  • Est. Priority Date: 12/31/2012
  • Status: Active Grant
First Claim
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1. a method for pulsed laser ranging, is characterized in that, described method comprises:

  • Send inceptive impulse signal, and when the rising edge voltage of described inceptive impulse signal reaches voltage threshold, the record start time;

    Receive the former reflected impulse after described inceptive impulse signal reflex;

    Described former reflected impulse is carried out first to the N time to amplify, obtain first to N reflected impulse;

    Detect and record described first to N reflected impulse corresponding first to N amplitude;

    Preferred threshold voltage magnitude is contrasted to N amplitude with first respectively, determines preferred reflected impulse, obtain preferred measurement result according to described preferred reflected impulse;

    Described preferred threshold voltage magnitude is preset value;

    Described N be greater than 1 positive integer;

    Wherein saidly obtain preferred measurement result according to described preferred reflected impulse, comprising;

    Detect and record described first first to N termination time when reaching described voltage threshold to the rising edge voltage of N reflected impulse received;

    First of correspondence is calculated to N measurement result according to described initial time and described first to N termination time;

    From N number of measurement result, select the measurement result corresponding with described preferred reflected impulse, as preferred measurement result.

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