Low carrier-to-noise ratio reception of video data link signals: A laboratory investigation
Abstract
Techniques involving analog pre-transmisson signal processing, wide deviation phase modulation, coherent detection, and field-rate recursive video filtering are combined into a transmission system capable of operating at carrier-to-noise ratios as low as -10 to -17 dB, depending on the type of noise or interference. System design concepts, test results, and planned improvements are described in detail.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- August 1979
- Bibcode:
- 1979STIN...8022560W
- Keywords:
-
- Carrier To Noise Ratios;
- Data Links;
- Data Transmission;
- Signal To Noise Ratios;
- Video Data;
- Delay Circuits;
- Digital Filters;
- Phase Modulation;
- Signal Reception;
- Communications and Radar