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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 271 records · Page 15

Improved phase locked loop receiver

Improved phase locked loop receiver tracks and demodulates a signal whose signal-to-noise ratio may be low and whose information sidebands are close in frequency. This receiver recovers the carrier from input signals and applies it to a demodulator which recovers the sidebands.

Daley, T. J.↗

Diversity RF receiving system with improved phase-lock characteristics

Improved diversity receiving system automatically utilizes the combined output from its two independent receiving channels /with cross- polarized receiving antennas/ to increase the reliability of maintaining the requisite phase lock for optimum signal reception. It is adapted for use with AM, PM, or narrow band FM signals.

Di Losa, V. J.↗

A phase lock servo system

Ground station phase locked servo system for decoding pulse position modulation signals from sounding rockets

Fennel, J. W., Jr.↗