Comparison of a Noise-Variance Weighted Complex Exponential Reconstructor With Traditional Reconstructors in the Presence of Deep Turbulence.

摘要

The military, and specifically the Navy, is making a move toward the use of directed energy weapons as a tactical advantage over typical kinetic weapons. Directed energy weapons require different controls and delivery methods to deal with differences in interaction of the atmosphere and the laser, as compared to traditional kinetic weapons. This thesis looks at a Noise Variance Weighted Complex Exponential Reconstruction method, and compares with typical zonal and modal least squares methods, to determine the actual wavefront in the presence of disturbances characteristic of the deep turbulence experienced in the maritime environment. The ability of each reconstructor to handle the effects of intensity dropout, branch points, and branch cuts is analyzed along with the effects of signal strength of the sensor, sensor grid size, and level of the intensity experienced.