Large scale laser radar for measuring aerosol distribution over a wide area

Abstract
A large scale laser radar was constructed to measure aerosol distribution over a wide area. It is composed of a high-power YAG laser with an average output energy of 30 W (at 1.064 μm) and 10 W (at 532 nm) a 25-pps repetition rate, and a large (effective diameter 1.5 m) receiving telescope. Three problems which degrade the accuracy of the measurement are noted, and a discussion of how to improve the accuracy of the system is included. Noise analysis shows that this system works within theoretical limits.