3. Conditions of use

3.1 Instrumental

For a short laser pulse and a short detection system response time, the useful lidar signal s _L retains the same form at all stages of the measurement chain: optical, electrical and digital. The digital signal at the end of the chain s _L,n is written as a simple product. Each step contributes to measurement noise.

In this respect, there is quantization noise due to digitization, as this is accompanied by an error in the representation of the electrical signal after detection. Indeed, the analog signal can take on an infinite number of values, whereas the signal sampled by the...