CLOSED-LOOP GUIDANCE WITH FINAL VELOCITY CONSTRAINT USING TIME-VARYING WEIGHTING COEFFICIENT FOR SHAPING OF COMMANDED ACCELERATION

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JALALI NAINI S.H.

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Journal: Journal of Space Science and Technology Year:2010 | Volume:2 | Issue:5 Page(s): 1-12

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Title

CLOSED-LOOP GUIDANCE WITH FINAL VELOCITY CONSTRAINT USING TIME-VARYING WEIGHTING COEFFICIENT FOR SHAPING OF COMMANDED ACCELERATION

Author(s)

JALALI NAINI S.H. | Issue Writer Certificate

Keywords

GUIDANCEQ2

OPTIMAL CONTROLQ2

MINIMUM ENERGYQ3

TIME-VARYING WEIGHTING COEFFICIENTQ3

Abstract

In this paper, a closed-loop optimal GUIDANCE with final position and velocity constraints is obtained by applying TIME-VARYING WEIGHTING COEFFICIENT in the performance index in order to shape the commanded acceleration. The control system is assumed to be linear, time-varying, and of arbitrary order with a throttle able engine. The acceleration due to drag is also modeled as a linear. Function with respect to velocity vector multiplied by a given junction of time. In addition, different weighting junctions are suggested for different acceleration constraints, such as maximum dynamic pressure, separation of stages, and zero acceleration at the final time. Finally, the performance of the GUIDANCE law for a combined weighting function is evaluated and discussed.

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APA: Copy

JALALI NAINI, S.H.. (2010). CLOSED-LOOP GUIDANCE WITH FINAL VELOCITY CONSTRAINT USING TIME-VARYING WEIGHTING COEFFICIENT FOR SHAPING OF COMMANDED ACCELERATION. JOURNAL OF SPACE SCIENCE AND TECHNOLOGY (JSST), 2(5), 1-12. SID. https://sid.ir/paper/149895/en

Vancouver: Copy

JALALI NAINI S.H.. CLOSED-LOOP GUIDANCE WITH FINAL VELOCITY CONSTRAINT USING TIME-VARYING WEIGHTING COEFFICIENT FOR SHAPING OF COMMANDED ACCELERATION. JOURNAL OF SPACE SCIENCE AND TECHNOLOGY (JSST)[Internet]. 2010;2(5):1-12. Available from: https://sid.ir/paper/149895/en

IEEE: Copy

S.H. JALALI NAINI, “CLOSED-LOOP GUIDANCE WITH FINAL VELOCITY CONSTRAINT USING TIME-VARYING WEIGHTING COEFFICIENT FOR SHAPING OF COMMANDED ACCELERATION,” JOURNAL OF SPACE SCIENCE AND TECHNOLOGY (JSST), vol. 2, no. 5, pp. 1–12, 2010, [Online]. Available: https://sid.ir/paper/149895/en

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