Research On Key Technology Of Laser Divergence Detection Distance Measuring

In this paper, a laser indicator multi parameter detection system, on the role of distance detection of the role of distance modeling method, optical power and beam divergence angle testing technique, linear fitting technique, the effect on the result of analysis of key technology for the system research.Based on the detection means development situation at home and abroad, from the role of distance principle, systematic analysis of the various roles of distance detection method; laser and radar electromagnetic wave propagation in atmospheric background of transmission and reception characteristics and do a comparison; from set out actually, radar electromagnetic wave propagation in the atmosphere transmittance is introduced into a laser indicator function the distance formula, the laser indicator distance modeling methods to improve is including distance, beam divergence angle and optical power range equation for laser indicator, the action distance modeling practical and accurate; gives a feasible optical power detection method, adopting CCD method for detecting laser light power detection, and the optical power values and CCD gray values are linear fitting; finally, the results are analyzed, and the influence of the main factors are discussed.