CPC Subgroup
G01S 15/10 using transmission of interrupted, pulse-modulated waves (determination of distance by phase measurement G01S15/32)
Full Title
Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems > using reflection of acoustic waves (G01S15/66 takes precedence) > Systems determining the position data of a target > Systems for measuring distance only (indirect measurement G01S15/46) > using transmission of interrupted, pulse-modulated waves (determination of distance by phase measurement G01S15/32)
5 direct subcodes
Child Classifications
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- G01S 15/12 wherein the pulse-recurrence frequency is varied to provide a desired time relationship between the transmission of a pulse and the receipt of the echo of a preceding pulse
- G01S 15/14 wherein a voltage or current pulse is initiated and terminated in accordance respectively with the pulse transmission and echo reception
- G01S 15/18 wherein range gates are used