AN ADVANCED METEOROLOGICAL SOUNDING SYSTEM.
Abstract
The report summarizes and analyzes work performed during a 3-1/2 year period on development of an advanced meteorological sounding system. This report includes a description of such a system, a discussion of the performance requirements for the subsystem components, and an analysis of the slant range, altitude and telemetry errors inherent in the proposed system. The developed system provides continuous and automatic reception, extraction, reduction and recording of slant range, telemetry, time and antenna coordinates. Unambiguous slant range is determined by means of a 31 bit PN code with a range readout resolution of approximately 5 feet. Telemetry is accommodated by two channels, one continuous and the other time division multiplexed in which the modulation form in PAM/FM/PM on the downlink. Telemetry readout resolution is better than 0.1%. The system is designed to provide operation at slant ranges up to 300 kilometers with only 35 milliwatts of radiosonde transmitter power. This report also provides measured data on the mechanized ground system which included a 30 watt solid state transmitter, auto-track receiver, range extractor, telemetry extractor data processor, tape punch and associated displays. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 15, 1968
- Accession Number
- AD0681470
Entities
People
- Elvin F. Krasin
- J. Kenneth Wood
- Warren M. Griggs
Organizations
- Motorola Mobility