1. Introduction . In recent years, coherent Doppler LIDARs (CDLs) have been utilized for various applications such as wind resource assessment [ 1 ] and airport safety by detecting windshear, turbulence, and wake vortex [ 2 – 6 ]. They are also used for aviation safety during flights to detect windshear, turbulence, and volcanic ash [ 7 – 11 ]. In addition, they are used to improve efficient power generation by directional controls of wind turbines [ 12 ] as well as weather fore...