Coefficient perturbation adaptive HF array
Abstract
Algorithmic details and the experimental performance of a large-scale HF adaptive antenna array implemented on a computer-controlled beam steering system are described. The results are obtained in the medium-wave and lower short-wave hands and show that ionospheric reflection can have deleterious effects on the ability to cancel interference sources. Some of the problems encountered in developing the software are discussed.
- Publication:
-
NASA STI/Recon Technical Report A
- Pub Date:
- February 1983
- Bibcode:
- 1983STIA...8327914H
- Keywords:
-
- Adaptive Control;
- Antenna Arrays;
- Computer Techniques;
- High Frequencies;
- Ionospheric Propagation;
- Perturbation Theory;
- Algorithms;
- Automatic Gain Control;
- Computerized Simulation;
- Embedded Computer Systems;
- Noise Reduction;
- Performance Tests;
- Radio Echoes;
- Wave Reflection;
- Communications and Radar