SIM documentation methodolgy and requirements flow-down process using DOORS
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documentation requirements tracing↗
Engineering topics
Stoller, R. L.
Publications and source records attributed to Stoller, R. L..
Space interferometry mission spacecraft pointing error budgets
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space interferometry mission error budget↗
Estimation in nonlinear systems with transport delay.
The problem of estimation of state in nonlinear dynamical systems containing time delays is studied. The plant is specified by a set of nonlinear differential-difference equations. Observations are a nonlinear function of current and/or delayed states. Both contain additive disturbances. The criterion used for the optimal estimates is the integral of the weighted squared error. Using the theory of the calculus of variations, equations are developed for the estimation. They are first expressed in the form of a split boundary value problem, which is then converted to an initial value problem for on-line estimation. The result yields a sequential estimation scheme in which filtered and smoothed estimates are computed in a sequential manner. The applicability of the procedure is demonstrated by a practical example.
Stoller, R. L.↗