Patent ID: 7917320
Filing Date: 2011-03-29
Classification: G01S

Abstract:
1. A method for optically sensing a remote object using an optical sensing apparatus, said object moving in a zone covered by said apparatus, the method comprising the steps of: (a) angularly scanning the line of sight of said optical sensing apparatus to cover a predetermined zone, (b) sending at least one optical pulse at each predetermined line of sight tilted by an angle θ (c) receiving for each predetermined line of sight θ (d) converting said optical signals into digital signal waveforms S, each of the said digital signal waveforms being formed of data sampled at a predetermined number N (e) storing into memory said signal waveforms S(R (f) numerically processing said digital signal waveforms, said numerical processing step comprising: wherein the signal to noise ratio of the generated signal waveform generated by the optical sensing apparatus is increased by said numerical processing.