Attenuated Chamber-Pressure Signal Reconstruction Using Maximum-Likelihood Estimation and Optimal Deconvolution

What is it about?

A maximum-likelihood method for fitting a second order model to chamber pressure response is presented. The resulting model is subsequently used to reconstruct a high-fidelity motor response via optimal deconvolution. The method is applied to small hybrid-thruster results from three separate testing campaigns. Results are compared to the unreconstructed data, and are shown to exhibit consistently better agreement with theoretical predictions.

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