Accession Number : AD0248432
Title : A PHASE HEIGHT AND AMPLITUDE RECEIVING AND RECORDING SYSTEM FOR MEASURING IONOSPHERIC WINDS
Corporate Author : LOWELL TECHNOLOGICAL INST RESEARCH FOUNDATION MA
Personal Author(s) : KINNARD, KENNETH F. ; TURNER, VERNON D.
Report Date : JUN 1960
Pagination or Media Count : 1
Abstract : A description is given of equipment designed and built for measuring changes in phase and ampli(over) tude of pulsed radio waves reflected from the ionosphere. Phase measurements are made by integrating a dc signal over the time period between zero crossings of the transmitted and received signals. Amplitude measurements are made by peak detection of gated echo pulses. Recording is in analog form on dual-channel magnetic tape. (Author)
Descriptors : *IONOSPHERE, *MAGNETIC RECORDING SYSTEMS, *PHASE DETECTORS, *PHASE MEASUREMENT, *RADIO WAVES, *RADIOFREQUENCY PULSES, *SWITCHING CIRCUITS, *WIND, ANALOG SYSTEMS, DATA PROCESSING, INSTRUMENTATION, MEASUREMENT, POWER SUPPLIES, RECORDING SYSTEMS, REFLECTION.
Distribution Statement : APPROVED FOR PUBLIC RELEASE