PULSE REPETITION RATE OPTMIZATION IN SLR STATIONS TO PROVIDE MINIMUM SYSTEMATIC ERROR OF RANGING M.A. Sadovnikov M.A. Sadovnikov Institute for Precision. - презентация

1 PULSE REPETITION RATE OPTMIZATION IN SLR STATIONS TO PROVIDE MINIMUM SYSTEMATIC ERROR OF RANGING M.A. Sadovnikov M.A. Sadovnikov Institute for Precision Instrument Engineering Moscow Moscow 16 th International Laser Ranging Workshop Poznan 2008

2 Active 300 Hz SLR stations. What next ?

3 INITIAL THESES 1.In single-photon SLR, the random and systematic errors of return signal arrival time depend on the number of photoelectrons in the return signal pulse n se. 2.With n se >1, the one-shot precision increases, but simultaneously the systematic error of measurement also increases; the error is caused by variations of the moment of detection of the first photoelectron in the return pulse, as well as by variations of the signal transit time in the avalanche photodiode. 3.To eliminate the systematic error, it is necessary to provide n se

4 ANALYSIS RESULTS AND CONCLUSIONS 1.The effect of signal intensity fluctuations on the systematic error of range measurements decreases with reduced average number of photoelectrons in the return signal pulse. With n se