A versatile automatic data separation system for pulse multiplex telemetering systems

The advent of guided missiles and modern high-speed aircraft has greatly increased both the number of functions for which telemetering is required, and the accuracy and reliability requirements of the telemetering equipment used. This has necessitated the use of pulse time multiplex techniques to provide these requirements with a minimum of transmitting equipment. The two most widely accepted pulse time multiplex systems, standards for which have been established by the Research and Development Board, are those which utilize pulse amplitude modulation (PAM) and pulse width modulation (PWM). User groups in their varied instrumentation programs have found that use of both systems allows greater operational and functional flexibility by providing a more economical means of “fitting” the systems to specific applications. These factors have firmly established a need for a single, versatile automatic data-separation equipment which will operate with the various pulse systems and which is directly adaptable for use with FM/FM receiving systems presently used in the field. This paper presents a discussion on a new data-separation system which was specifically designed to fill this need.