Patent ID: 7456970

Claim:
In a system for remotely measuring characteristics of a target scene, a method of finding a temporal location of a reflected pulse, in a two or more pulse sequence, comprising the steps of: (a) transmitting a pulse burst toward the target scene; (b) capturing a copy of the pulse burst transmitted in step (a); (c) measuring an inter-pulse separation between two pulses in the pulse burst captured in step (b); (d) receiving a signal reflected from the target scene; (e) determining a temporal location of a first pulse in the signal received in step (d); and (f) determining a temporal location of a second pulse in the signal received in step (d), based on the inter-pulse separation measured in step (c); wherein step (e) includes determining a temporal location of a pulse having a maximum peak level in the signal, and denoting that pulse as the first pulse in the signal, and step (f) includes determining the location of the second pulse in the signal by summing the temporal location of the first pulse with the inter-pulse separation measured in step (c).