Operation and modeling of the FORTE trigger box | Zendy

Thomas W Murphy | Zendy

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Operation and modeling of the FORTE trigger box

Author(s) -

Thomas W Murphy

Publication year - 1996

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/251642

Subject(s) - computer science , transient (computer programming) , satellite , window (computing) , bandwidth (computing) , computer hardware , signal (programming language) , noise (video) , real time computing , telecommunications , engineering , artificial intelligence , image (mathematics) , programming language , aerospace engineering , operating system

The fast on-orbit recording of transient events satellite (FORTE) will carry a multiple-narrow-band trigger designed to detect impulsive VHF signals embedded in a high-noise background. The FORTE trigger boxes consist of eight VHF channels spaced across twenty MHz of bandwidth. A trigger is generated when a sufficiently bright signal is seen in a user-defined number of these channels within a specified coincidence window. In addition, the trigger circuitry incorporates a feature to reject events caused by the actuation of narrow-band carriers. This report describes the trigger`s operating principles and their implementation in the satellite hardware. We then discuss a computer model which can be used to simulate the performance of the trigger circuit

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