Accession Number:

AD0266417

Title:

ACCURACY AND IMPROVEMENT STUDY FOR TRACK VELOCITY MEASUREMENT FOR AFMDC

Descriptive Note:

Final rept.,

Corporate Author:

COMMUNICATIONS RESEARCH LABS SANTA ANA CALIF

Personal Author(s):

Report Date:

1961-09-01

Pagination or Media Count:

118.0

Abstract:

Completed research is presented on improved precision velocity measuring systems for the AFMDC track. The general objectives of this study are summarized. The various sources of error of the present velocity measuring system are enumerated and explained. The largest errors are differential motion between the center of gravity of the guidance system and the space-time head and loss of high frequencies. Two approaches are suggested for reduction of differential motion error 1 reduce the actual motion or 2 measure the motion and apply it as a correction to the corrupted data. Filter error may be reduced to the vanishing point by adding an accelerometer to form a hybrid system. Theoretical error analyses in the frequency domain are carried out for the space-time syst m and for the accelerometers-space-time hybrid system including alias or sampling error effects. A generalized three-element hybrid system has been analysed and optimized for continuous data. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE