Coherent Optical Adaptive Techniques (COAT)
Quarterly technical rept. 16 Jul-16 Oct 1972
ROCKWELL INTERNATIONAL ANAHEIM CA ELECTRONICS OPERATIONS
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This report summarizes the design specifications and operating properties of the individual components employed in a 6 element linear COAT experimental array. This array employs a phase conjugate principal to adaptively compensate for both receive and transmitting wavefront aberrations induced by the atmosphere, the target andor the optical system itself. Inherent in the adaptive operations of the COAT array is its ability to select, focus to and track a single glint in a multiglint moving target environment. The report includes test results for the frequency modulator, detector, laser and electronics subsystems. The key element, frequency modulator, has been thoroughly tested with performance meeting theoretically defined specifications. PbSnTe detectors are now being used for heterodyne recievers and have replaced GeCu devices with their attendant requirement for liquid helium. Initial system test results are given along with a system modification which has been made. Performance is close to predicted values and signal-to-noise evaluation for the 1 Km range indicates that plenty of margin for operation at a range of 10 km is present.
- Optical Detection and Detectors