BEST TELEMETRY SOURCE SELECTOR/ANALYZER SYSTEM

Abstract

This paper describes a microprocessor based multi-channel signal analyzer system for use with telemetry system pre- and post detected video signals. In the application described here, the system software is configured to simultaneously analyze up to 16 telemetry signals, compute an estimate of the SNR for each, and then select the best for output to real time recording equipment. The SNR is estimated by comparing the total signal energy with the signal power observed in an unused portion of the signal spectrum. The signal analysis filters are fully programmable over a range of 10 KHz to 2 MHz and may be set up to analyze a wide variety of telemetry formats. The microprocessor system also supports printed output of signal status and remote programming.