STRS Application Repository Contents

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Name Version Purpose Functional Description Tx/Rx Space / Ground Software Classification A-H Safety Critical Deployment Date Architecture / Version Release Category Release Restrictions Release Availability Availability of Models TRL TRL Justification RRL RRL Justification RRL (Documentation) RRL (Extensibility) RRL (Intellectual Property Issues) RRL (Modularity) RRL (Packaging) RRL (Portability) RRL (Standards Compliance) RRL (Support) RRL (Verification & Testing) Name
STRS Compliance Tools 06/28/2012 To test for STRS compliance. These tools are used to help verify software compliance to the NASA-developed Space Telecommunications Radio System (STRS) architecture. The goal of STRS is to support waveform application portability, upgradability, and reduce the cost and risk of using Software Defined Radios for NASA. ComplianceTool.sh is a Bourne shell script that tests an STRS application for the appropriate method signatures. The output is a web page containing the results. ComplianceToolOE.sh is a Bourne shell script that tests the STRS infrastructure for the required named constants, typedefs, and structs. The output is a web page containing the results. The command and compliance application, WFCCN, is ported, compiled, and linked with an STRS infrastructure to verify static compliance such that all required STRS infrastructure-provided methods are implemented as well as the named constants, typedefs, and structs. WFCCN may also be executed for dynamic compliance testing. The tools are described in "STRS Compliance Testing", NASA/TM 2011-217266. None Ground E 0 2012-06-28 STRS v1.02 PUBLIC None from NASA GRC 0 2 Never will be used in production environment. Used as a tool for analysis of OE application(s). 6.89 Tested against multiple OEs. 5 7 8 7 5 7 8 8 7 STRS Compliance Tools
GRC GSFC TDRSS (GGT) Waveform 1.1.3 The GRC GSFC TDRSS (GGT) Waveform is a Binary-Phase-Shift-Keying (BPSK) spread-spectrum waveform intended for use with the Tracking Delay Relay Satellite Service System (TDRSS). To a smaller degree it is intended for direct-to-ground links with the Near Earth Network(NEN). The waveform is software and complex electronic code that is designed to run on the JPL Software Defined Radio (SDR) of the SCaN Testbed on ISS. The core functionality existed terrestrially in a ground-based lab at GSFC. This code was then ported to the space-based JPL SDR. Some functions were modified and added during the port. The waveform uses BPSK and SS-BPSK modulation to enable standard TDRSS functionality. The Spread Spectrum BPSk modes operate over the TDRSS Single Access and Multiple Access services at data rates of 18kbps forward and 24kbps return, with options possible for encoding/decoding and scrambling. The BPSK modulation modes operate at 155kbps and 769kbps forward, and 192kbps and 769kbps return, respectively. Similar options are available for encoding/decoding and scrambling. The waveform supports a SpaceWire data interface to the flight computer and provides a standard 1553 command and telemetry interface. Tx+Rx Space E 0 2012-07-20 STRS v1.02 GPR/INTERAGENCY ITAR from NASA GRC 1 7 This is the baseline waveform software for an experimental SDR on-board the International Space Station. 5.22 The software was developed per NASA Class E+ standards as well as the STRS 1.02 standard. Software was used for the NASA SCaN Testbed system integration verification testing, as well as on-orbit checkout. 5 5 6 5 1 6 7 3 9 GRC GSFC TDRSS (GGT) Waveform

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