Advanced Spectrum Analyzer.
Abstract
The objective of this phase of the program is the extension of the operational capability of the IOSA to: (1) a useful linear dynamic range of 40 dB, beginning at a signal-to-noise ratio (SNR) of 6.7 dB, for RF input pulses with durations of 0.4 microsec or longer and (2) a differential signal strength sensitivity of 40 dB for simultaneous long-duration pulsed or CW RF signals separated in frequency by 16 MHz. Efforts during this reporting period covered all major developmental areas of the program with the exception of geodesic lens fabrication and testing. Emphasis was placed upon: (1) investigations of the applicability of GaAlAs diode lasers from three different manufacturers to the optical system of the advanced IOSA; (2) continued efforts toward butt-coupling of General Optronics lasers mounted on our heat sinks to LiNbO3:Ti waveguides; and (3) exploration of techniques to improve the performance of the 5050 photodiode array and its associated readout electronics in order to decrease to system noise level toward the basic noise level of the photosensor chip. Progress in each of these areas will be summarized and the program plan for the next bimonthly period is outlined.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 05, 1981
- Accession Number
- ADA103790
Entities
People
- W. K. Burns