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Showing 1 to 20 of 59 for “"Predictor-Corrector"”.
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Pitch-Control Predictor-Corrector and Neural Network Ascent Guidance
A pitch-control predictor-corrector ascent guidance algorithm has been developed and evaluated for a rocket-based upper stage of a two-stage-to-orbit launch vehicle. Detailed descriptions of the predictor-corrector algorithm and a neural network loop modification are given. The mission requirement …
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A Patankar Predictor-Corrector Approach for Positivity-Preserving Time Integration
… methods. The proposed method operates as a predictor-corrector framework, using algebraic post-processing to clip negative stage values and apply diagonal scaling to enforce both positivity and conservation. A series of benchmark problems, including the stratospheric reaction system, the …
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A two step predictor-corrector method for voltage collapse point estimation
… large systems. This work aims to speed up the predictor-corrector process by using a VSI called P-index. An initial prediction is made, corrected using a continuation technique, and then updated after correction. The results are relatively accurate and it makes a significant improvement to the …
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An adaptive numeric predictor-corrector guidance algorithm for atmospheric entry vehicles
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1987.
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A predictor-corrector guidance algorithm design for a low L/D autonomous re-entry vehicle
… This versatile guidance approach employs predictor-corrector methods. The guidance scheme presented generates a possibility of bankrate profiles within limitations that could be used for target acquisition. Selection of a robust target location and the nominal bankrate profile which will …
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A comparison of numerical algorithms for solution of the transient stability problem
… transition; the trapezoidal rule; Adams-Moulton predictor-corrector; and Hamming predictor-corrector. The five algorithms, using various step sizes, are applied to three test systems, including the IEEE l4-bus system, using a common main program to call each algorithm as an independent …
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Numerical methods for fractional differential equations by new caputo and hadamard types operators
… numerical scheme in efficient ways such as predictor-corrector method, finite difference scheme and spectral collocation method in this research for FODE and FPDE. Caputo-Fabrizo operator is a definition which is verified that does not fit the usual concept neither for fractional nor for …
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Feasibility Assessment of Adopting the ADDER Computer Code for the MIT Research Reactor Fuel Management
… located near control blades when using the predictor-corrector method for depletion since the codes rely on different algorithmic definitions for predictor-corrector as well as different critical blade search schedules. Closer agreement between results is obtained when switching to the …
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Non-interior path-following methods for complementarity problems
… to accelerate the convergence, we introduce a predictor-corrector strategy. This strategy allows us to construct the first predictor-corrector non-interior path following method that is both globally linearly convergent and locally quadratically convergent. In the thesis, we also make progress …
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Assessment of application of the steep-lifting entry trajectory solution to real-time entry guidance
… Apollo final phase, and analytic and numeric predictor-correctors), where the steep-lifting entry trajectory solution assumptions and conditions were valid; however, due to the assumptions in the steep-lifting entry trajectory solution, the Apollo final phase and numeric predictor-corrector …
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A Geometry-Based Motion Planner for Direct Machining and Control
… motion planning module includes a deterministic predictor-corrector-type curve interpolator, a dynamics limiting module, and a two-pass jerk-limited speed profiling algorithm. The methods are verified by machining an automotive surface in a clay medium and evaluating the resultant machine …
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Location-Aware Adaptive Vehicle Dynamics System: Linear Chassis Predictions
… not reactive. The LAAVD System employs a predictor-corrector method in which the driver's input commands (throttle, brake, steering) and upcoming driving environment (terrain, traffic, weather) are predicted. An Intervention Strategy uses a novel measure of handling capability, the …
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High speed dynamic simulation of power systems
… to this problem. The first approach is to use a predictor-corrector integration scheme to simulate the power system. In this approach, the classical model of a generator, with linear load models, is considered.
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Mathematical analysis of fractional-order chemostat model with time delay
… model are discussed by using the Adams-type predictor-corrector method. Furthermore, the behaviour of the fractional-order chemostat system that considered time delay was also observed by using the modified Adams-type predictor-corrector method. The result shows that increasing or decreasing …
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Numerical stability of Monte Carlo neutron transport and isotopic depletion for nuclear reactor analysis
… shown that, for reasonably long time-steps, the corrector step of predictor-corrector schemes does not succeed in locating the root (or the stable solution) of this map. Hence, relaxation schemes are introduced; relaxation schemes have been applied to neutronics/depletion coupling previously in …
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Pricing, Calibration and Hedging under the LIBOR model
… generalise the algorithm to implement the predictor-corrector method. Calibration is carried out to price swaptions using the Black-76 and LIBOR methods, and the hedging strategies implied by both methods are considered. We aim to determine whether the theoretical and computational overhead …
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Effect of friction and control parameters on the tracking accuracy of a target seeker
… has been synthesized, relying on idealized predictor corrector control to improve the tracking accuracy of the missile seeker. Computer simulations using the Dynamic Simulation Language have demonstrated the superior performance expected from this method.
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Numerical Simulation of 4th Order Total Variation Flow Problem by using C^0 IPDG Method
… the performance of the C$^0$IPDG method and predictor corrector continuation strategies.
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Formulações e métodos de solução na análise não-linear de treliças espaciais
… (fourth-order Runge-Kutta and Hamming's predictor-corrector). Several examples comparing the different possibilities of the program are presented and commented.
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