BACKGROUND DISCRIMINATION WITH THE ROTATING FIELD DETECTOR
Abstract
In the case of the detection of point sources against non-point backgrounds, it is found that background signal suppression is achieved through the use of 2 complementary reticles and 2 detectors. By employing 2 Rotating Field Detectors, the problems of matching reticle chopping speed and phases are avoided. The actual implementa tion of this scheme is achieved in a variety of ways which allows considerable flexibility in overall system design. The performance of the system is found to be adequately described in terms of a spatial energy distribution, although recourse to a description in terms of a spatial frequency distribution is possible by means of the 2-dimensional Fourier Transform. The employment of fiber optics in the system is shown to be feasible from the standpoint of performance but unit costs are found to be significantly higher than a system employing more conventional components. Experiments with the system are planned but have not yet been carried out. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1963
- Accession Number
- AD0350154
Entities
People
- Burton D. Figler