Accession Number : AD0782039
Title : Analog Ranging Modem Code Processor and Generator.
Descriptive Note : Final rept. 1 Jul 71-30 Jun 72,
Corporate Author : TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MASS
Personal Author(s) : Mauro,P. G.
Report Date : MAY 1974
Pagination or Media Count : 45
Abstract : The report details technical development efforts to implement an analog ranging modem using recently developed linear integrated circuits where possible. The breadboard hardware is capable of acquiring frequency and phase of a weak signal in a high noise environment, i.e., a C/No ratio of 37 dB-Hz, as verified in laboratory noise tests. The report includes a description of the system and of the hardware implementation. The ranging technique implemented and tested has direct application to the AEROSAT system. It represents one possible approach to sidetone ranging. The test setup and test results are given along with a summary, recommendations and conclusions. Schematics of the circuitry, test data and analyses are included. (Author)
Descriptors : *Range finding, *Modems, Air traffic control systems, Coding, Generators, Processing equipment, Analog systems, Signals
Subject Categories : Electrical and Electronic Equipment
Air Navigation and Guidance
Distribution Statement : APPROVED FOR PUBLIC RELEASE