using transmission of interrupted, pulse-modulated waves (determination of distance by phase measurements G01S17/32)

Full Title

Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems > Systems using the reflection of electromagnetic waves other than radio waves (G01S17/66 takes precedence) > Systems determining position data of a target > for measuring distance only (indirect measurement G01S17/46; active triangulation systems G01S17/48) > using transmission of interrupted, pulse-modulated waves (determination of distance by phase measurements G01S17/32)

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• G01S 17/14 wherein a voltage or current pulse is initiated and terminated in accordance with the pulse transmission and echo reception respectively, e.g. using counters
• G01S 17/18 wherein range gates are used
• G01S 17/26 wherein the transmitted pulses use a frequency-modulated or phase-modulated carrier wave, e.g. for pulse compression of received signals