An Optically Implemented Multiple-Stage Kalman Filter Algorithm

William A. Roemer; Peter S. Maybeck

doi:10.1117/12.936462

28 November 1983 An Optically Implemented Multiple-Stage Kalman Filter Algorithm

William A. Roemer, Peter S. Maybeck

Proceedings Volume 0431, Real-Time Signal Processing VI; (1983) https://doi.org/10.1117/12.936462
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

Abstract

A working paper is presented on the mathematical development and analysis of an optically implemented multiple-stage Kalman filter algorithm which uses two previously developed estimation models (linear first-order Gauss-Markov and constant turn-rate) for high energy laser pointing and tracking. An overview of the estimation models reveals model equivalence in mid- to long-range tracking applications and superiority of the constant turn-rate model (at the expense of a much higher computational burden) for both short-range and evasive target tracking. Real world constraints are to be forcibly imposed on the optical filter by limiting the choice of all system components to off-the-shelf units whose performance criteria are well characterized. Derivation of the filter architecture subject to the real world constraints shows the pielined iterative systolic array architecture to be significantly superior. Filter development based on this architecture is expected to generate a MTF which yields superior performance of the optical filter over its electronic counterpart based both on the output statistics produced and system throughput capability Additional analyses of filter performance reveal potential filter enhancement with the incorporation of range and relative velocity data obtained through use of a laser doppler velocimeter and an optical heterodyne detector. Current and planned future research efforts are also presented.

Citation Download Citation

William A. Roemer and Peter S. Maybeck "An Optically Implemented Multiple-Stage Kalman Filter Algorithm", Proc. SPIE 0431, Real-Time Signal Processing VI, (28 November 1983); https://doi.org/10.1117/12.936462

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