Development And Testing Of Adaptive Hf High Frequency Radio Techniques
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Development and Testing of Adaptive HF (High Frequency) Radio Techniques
The Rockwell Collins SELSCAN adaptive high-frequency (HF) radio system, using an Air Force AN/ARC-190 transceiver, was operated over a 2615-km temperate latitude path for 24 hours. Propagation was monitored by an FMCW chirp oblique sounder. Voice and data transmissions were used to assess the quality of the selected channels. The SELSCAN always found a usable channel, and usually a very good one, even when propagation was limited to a small range of frequencies. A parallel effort to develop a test bed for experimentation with alternative probing waveforms is described. Results are incomplete because of difficulties with equipment and software. A theoretical analysis of probing waveforms for use with adaptive HF systems is presented. Finally, some recommendations are made for the application of adaptive HF. Keywords include: Adaptive High-Frequency Radio, HF Radio Communications, AHF, Oblique Ionograms, and SELSCAN.
Publications Abstracts
Author: United States. National Telecommunications and Information Administration
language: en
Publisher:
Release Date: 1991