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Radar range data signal enhancement trackerThe design, fabrication, and performance characteristics are described of two digital data signal enhancement filters which are capable of being inserted between the Space Shuttle Navigation Sensor outputs and the guidance computer. Commonality of interfaces has been stressed so that the filters may be evaluated through operation with simulated sensors or with actual prototype sensor hardware. The filters will provide both a smoothed range and range rate output. Different conceptual approaches are utilized for each filter. The first filter is based on a combination low pass nonrecursive filter and a cascaded simple average smoother for range and range rate, respectively. Filter number two is a tracking filter which is capable of following transient data of the type encountered during burn periods. A test simulator was also designed which generates typical shuttle navigation sensor data.
Document ID
19760014281
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Date Acquired
September 3, 2013
Publication Date
April 23, 1975
Subject Category
Communications And Radar
Report/Patent Number
NASA-CR-147537
REPT-25533-H013-R0-00
Accession Number
76N21369
Funding Number(s)
CONTRACT_GRANT: NAS9-13739
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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