KEYWORDS: Sensors, Digital signal processing, Field programmable gate arrays, Staring arrays, Laser communications, Signal processing, Detection and tracking algorithms, Detector development, Aerospace engineering, Telecommunications
A Two Terminal Laser Communication Test Bed has been developed at The Aerospace Corporation. This
paper presents the design and preliminary results of a reprogrammable detector within the Test Bed for use in pointing,
acquisition, and tracking between a Satellite-to-Satellite Laser Communication link. The detector may be commanded
by an emulated spacecraft Command & Data Handling subsystem to switch between full-array scanning and "small
sized" N x M pixel Field of View (FOV) for high-rate laser tracking. The approach follows a parallel path to
implement the signal processing algorithm on two different hardware resources: a Field Programmable Gate Array
(FPGA) and a Digital Signal Processor (DSP). The focus of this effort is to present a methodology for testing and
evaluating various techniques for advanced focal plane array (FPA) hardware, as well as sensor FPA control, image
processing and laser beam X & Y position algorithms.
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