Optical image plane correlator for ambiguity surface computation
Abstract
An optical image plane correlator is described which computes the ambiguity function for passive, wideband, complex, and basebanded signals. Quadrature input modulation, single-sideband filtering, and a modified image plane correlator requiring no moving parts are used to achieve the required complex correlations. The scenario, theory, and design are provided together with experimental verification on LFM and Barker-coded waveforms as well as synthetic data.
- Publication:
-
Applied Optics
- Pub Date:
- May 1979
- DOI:
- 10.1364/AO.18.001673
- Bibcode:
- 1979ApOpt..18.1673C
- Keywords:
-
- Coherent Light;
- Computer Techniques;
- Image Correlators;
- Radar Data;
- Signal Processing;
- Ambiguity;
- Broadband;
- Frequency Modulation;
- Laser Outputs;
- Signal Encoding;
- Waveforms;
- Instrumentation and Photography;
- OPTICAL PROCESSING;
- DATA PROCESSING