16 December 1989 A Two-Dimensional Processor Array For Wavefront Reconstruction
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Abstract
Current and future adaptive optical systems that utilize deformable or segmented mirrors as the adaptive element may require that matrix calculations be performed on a real time basis to keep the mirror properly figured. A two-dimensional array of processor nodes (the "Solver") has been developed that is capable of computing the required positions of several hundred to several thousand mirror actuator elements in a real time environment. The processor has been demonstrated as a two-board system capable of performing 3.4 x 109 integer operations per second, and with input/output (I/O) bandwidth of 200 Mbytes/sec. The architecture is well suited to matrix algebra and iterative type operations and is scalable to larger computational rates. System costs have been kept low and software tools have been developed to ease the implementation of algorithms. This work has been performed under contract with the Office of Naval Research, and the authors thank them for their support.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. Johnson, G. Newman, L. Haynes, R. Cram, E. Smith, R. Arnold, B. Spivey, "A Two-Dimensional Processor Array For Wavefront Reconstruction", Proc. SPIE 0977, Real-Time Signal Processing XI, (16 December 1989); doi: 10.1117/12.948573; https://doi.org/10.1117/12.948573
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