Navy HF Communications
Abstract
Today the Navy does not have the tools needed to operate in a SATCOM-denied fight. The future Navy will need better tools to execute the Maritime mission successfully. If space systems cannot provide beyond-line-of-sight communications, then HF will be critical to distribute maritime operations.Today, there are off-the-shelf open software communication techniques developed for the high frequency (HF) band that will successfully operate in very austere ionospheric conditions. These methods are classified as weak signal techniques because they work well when the signal strength is low. If adopted by the Navy, these modulation techniques will not requireextensive adjustment to provide a C2 of HF capability. The modulation will bring robustness and some LPE attributes. Old Dominion University will develop a technique and provide a prototype for testing on Navy ships.Our approach is to adopt an off-the-shelf, opensoftware program used for short messages. It is a formatted technique with a standard 15-character message each. The transmitter s bandwidth is 50 Hz, but the receiver s bandwidth is 3000 Hz. Therefore, the receiving unit will receive and decode all the transmissions within the 3000 Hz window. The radio will transmit for 15 seconds and listen for 15 seconds. Since the system was not designed as a Navy C2 application, the technique must be adjusted for the Navy.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 15, 2023
- Source ID
- N000142312494
Entities
People
- Linda Vahala
Organizations
- Office of Naval Research
- Old Dominion University
- United States Navy