Bae Systems Information and Electronic Systems Integration Inc.

Robert C Marion

Eldon M Sutphin

Robert Actis

John R Muir

Steven Rajkowski

Frank A Mannarino

A system and method for using an embedded microprocessor in an RF amplifier. The use of an embedded microprocessor avoids manual calibration. The Microprocessor collects initial amplifier performance data based on a set of parameters and calculates the needed corrections. The microprocessor can change levels within the circuit to achieve those operating points. The embedded microprocessor sets voltage levels with internal circuitry and communicates this information externally through a serial communication port, or the like, to allow a user to communicate with and look at the amplifier data and readjust the internal bias levels, as needed. Thus, the internal microprocessor provides for calibration, self-testing, and monitoring of the RF amplifier and also functions as an in situ bias and temperature compensation controller for use in the presence of temperature variation and provides bias sequencing control to protect against improper applied timing of voltage inputs to the amplifier.

Low swap circuit card design for RF power amplifiers

An optical amplifier is included within a fiber optic transmission system for driving a fiber optic towed decoy system. The optical amplifier boosts the optical power of a laser on board the driving system and compensates for link loss within the driving system and link loss associated with a blind connection between the driving system and the towed decoy. The optical amplifier may be an erbium doped fiber amplifier and may be run in a saturation mode. The result is a towed decoy system capable of operating more consistently across a range of platforms and in some cases less stringent gain requirements on towed decoy components.

Low loss fiber optic link using an optical amplifier

An optical attenuator is included within an aircraft decoy driver system for driving a fiber optic towed decoy system to compensate for variability in the fiber optic connection to the towed decoy system. The attenuator is controlled by a control signal from the towed decoy system and adjusts the link gain based on this feedback control signal to compensate for link loss, which is highly variable and may include losses as a function of cable, connectors and splices, and to maintain a relatively constant gain. To ensure the broadest range of performance, a higher power laser can be used to drive an external Mach Zhender Modulator or an erbium doped fiber amplifier (EDFA) prior to the optical attenuator. The result is a fiber optic towed decoy system that is adaptable to various platforms and design configurations without degradation in performance of the towed decoy system.

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Pelham, NH, United States of America

Robert C Marion