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Book Title: NASA Technical Reports Server (NTRS) : Swept
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Language: english
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Post Date: 2025-04-04 11:42:45
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PDF Size: 0.48 MB
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Book Pages: 6
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NASA Technical Reports Server (NTRS) : Swept
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Description of the Book:
Direct recording of group delay measurements on a system under temperature and stress tests employs modulated carrier frequency sweep over an S or X band. Reference path and test paths to separate detectors utilize a power divider e.g., a directional coupler or a hybrid T junction. An initially balanced phase comparator is swept in frequency by modulated carrier over the band of interest for different conditions of temperature and/or mechanical stress to obtain characteristic group delay curves
- Creator/s: NASA Technical Reports Server (NTRS
- Date: 4/11/1978
- Year: 1978
- Book Topics/Themes: NASA Technical Reports Server (NTRS), DELAY CIRCUITS, PHASE MODULATION, SIGNAL PROCESSING, SWEEP FREQUENCY, CARRIER FREQUENCIES, MEASURING INSTRUMENTS, TIME LAG, Trowbridge, D. L. [Inventor
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