A Fiber Optic Beamforming Processor for Wideband Direction Finding.
Abstract
This paper describes a wideband electro-optic direction finding (DF) processor employing an array of laser diodes, an array of photo-detectors, and a network of fiber optic delay lines. This DF filter offers a potential operational bandwidth in excess of 10 GHz and allows for multiple, simultaneous beam angular responses with peaks which are independent of frequency. Two eight-laser, two-beam laboratory test model DF devices, one utilizing multimode optical fiber and the other single-mode fiber, were constructed. These experimental optical beamforming filters are operable in the 100-2000 MHz frequency range and can simultaneously monitor two angles of arrival. Experiments were performed to determine the two systems' sensitivity, dynamic range, angular resolution, and frequency response.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1988
- Accession Number
- ADA194862
Entities
People
- Stephen A. Pappert