SITIS Archives - Topic Details
Program:  SBIR
Topic Num:  AF071-352 (AirForce)
Title:  Telemetry Metric Adjustment Decision Authorization and Command System (TMADACS)
Research & Technical Areas:  Air Platform

  Objective:  Develop a telemetry-communications metric-adjustment decision, authorization, and command-capability system for simultaneously flight testing multiple sorties, over a limited telemetry-frequency spectrum.
  Description:  Frequency encroachment, both commercially and privately, has reduced the military telemetry frequency spectrum. The desire for more telemetry data is currently increasing while the telemetry frequency spectrum decreases. This causes a problem in effectively scheduling the use of the limited telemetry spectrum. Research is needed to determine the feasibility of developing a TMADACS capable of providing mission/airspace controllers with the ability to adjust telemetry communication metrics (through frequency modulation and other means), according to the mission needs, to maximize the use of the limited frequency spectrum. The TMADACS is intended to be an automated device, located within a mission control facility, which will interface with scheduling infrastructure to assist the mission/airspace controller in determining available metrics. The TMADACS will need an automated interface between the transmission system and the mission/airspace controller to assist in the control functions and have the capability to use various algorithms, hardware/software to ensure proper decision/authorization/command capabilities. To meet operational requirements, the TMADACS must provide mission/airspace controllers the ability to evaluate interference criteria between multiple test vehicle, modulation schemes, and ground station telemetry bands. It must also be able to determine decision metrics for automated and manual control of center frequency, modulation scheme, and data rate of on-board instrumentation systems. During operation, the TMADACS will need to authorize the use and adjustment of various metrics on the target test vehicle only. The system must provide the capability for the mission/airspace controller to command adjustment of those metrics. In turn, the system must acknowledge interfacing has occurred between the ground control system and the flying system. This will ensure proper adjustment of the system has occurred.

  PHASE I: Develop an initial concept design for a TMADACS used for real-time mission communications metric adjustment. Determine the interfaces needed for integration into the range scheduling infrastructure and the logistics involved in the metric determination by the mission/airspace controller.
  PHASE II: Design, develop, and demonstrate a prototype TMADACS system and the required interfaces that will meet the performance characteristics determined in Phase I.

  PHASE III Dual Use Application: Military Application: This development has the potential to optimize the military use of the telemetry frequency spectrum. This will allow more real time data to be viewed by mission controllers, saving time and money. Commercial Application: This development has the potential to optimize commercial companies’ use of the frequency spectrum. This will allow less spectrum to be used for the same applications; ultimately increasing the available spectrum for other commercial and military applications.

  References:  1. Cross Link, “Critical Issues in Spectrum Management for Defense Space Systems,” 2. The Edge, “Spectrum Is Critical to Aviation and Weapon Systems Superiority,” 13 Dec 05, 3. Joint Spectrum Center, 4.

Keywords:  range scheduling infrastructure, telemetry, frequency spectrum, signal modulation, decision/authorization/command, COTS material, logistics, algorithms, reliability, real-time

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