Simulation of an Optical Correlator Configured as an Imaging System Using Liquid Crystal Television Spatial Light Modulators.
Abstract
This thesis models the complex transmittance effects of liquid crystal television spatial light modulators (SLMs) in an optical correlator configured as an imaging system. The computer model implements both the ideal transmittance and the nonlinear measured transmittance which is a function of the voltage applied across the pixel of the liquid crystal device. The system modeled included the effects of a nonlinear input SLM input but assumed an ideal filter SLM. Input waveforms included both one-dimensional and two-dimensional spatial cosines and chirped cosines. Results show that the effects of the SLM transmittance nonlinearity can be minimized by limiting the input signal voltages to values falling on a piecewise linear region of the transmittance operating characteristics.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1996
- Accession Number
- ADA307936
Entities
People
- Scott C. Miller
Organizations
- Naval Postgraduate School