High Altitude Router and Relay for Over-the-Horizon Networks

Abstract

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A novel software defined radio relay method for power conservation

“…It outperforms legacy military voice algorithms such as Continuously Variable Slope Delta Modulation (CVSD) in terms of mean opinion score (MOS) with less background noise [5,6]. Recent efforts at the Naval Research Laboratory (NRL) to develop relays consist of the TacSat-4 reconnaissance and communications satellite, the Software Reprogrammable Payload (SRP), the High Altitude Router and Relay (HARR), and Surrogate TACSAT relay [7,8,9,10].…”