A TECHNIQUE FOR NARROW-BAND TELEMETRY OF NONRECURRENT PULSES
Abstract
A pretransmission data processing technique has been developed to meet several unusual telemetering requirements. The technique has been implemented and the performance of a laboratory model has verified the validity of the technique. The data to be telemetered and the operational environments are as follows: (a) the input will be either a single pulse or a series of pulses which are nonrecurrent, (b) within limits the time sequence of the events generating the data will be known, (c) at the time of data occurrence, reception from the vehicle carrying the telemetering system will not be possible, and (d) data will be transmitted on a standard FM-FM link. The techniques employed for solution of the problem are: (a) the first input signal shall start the complete measurement process, (b) the peak amplitude of the input function is sampled at selected discrete time intervals which occur sequentially during the time of the input function, (c) these samples are channelized and converted to dc voltages which are a function of the time-selected peak amplitudes, 9d) the dc voltages are stored and presented as continuously available outputs, and (e) these data can be sampled and transmitted over conventional telemetry or communication links and used, with a priori knowledge of the sampling time sequence, to reconstruct the input function. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 26, 1962
- Accession Number
- AD0290697
Entities
People
- J.e. Abel
- P.t. Stine
Organizations
- United States Naval Research Laboratory