ANALYTICAL SOLUTION OF OPTIMAL LINE-OF-SIGHT STRATEGY FOR SIMPLIFIED INTEGRATED GUIDANCE AND CONTROL SYSTEM WITH STATIONARY TARGET

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SAJJADI SEYED HESAM; JALALI NAINI SEYED HAMID

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:7 Page(s): 361-372

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Title

ANALYTICAL SOLUTION OF OPTIMAL LINE-OF-SIGHT STRATEGY FOR SIMPLIFIED INTEGRATED GUIDANCE AND CONTROL SYSTEM WITH STATIONARY TARGET

Author(s)

SAJJADI SEYED HESAM | JALALI NAINI SEYED HAMID | Issue Writer Certificate

Keywords

INTEGRATED GUIDANCE AND CONTROLQ2

OPTIMAL CONTROLQ2

LINE-OF-SIGHT GUIDANCEQ1

NON-MINIMUM PHASE SYSTEMSQ1

Abstract

In this paper, an explicit formulation of optimal line-of-sight strategy is derived in closed-loop for INTEGRATED GUIDANCE AND CONTROL (IGC) system without consideration of fin deflection limit. The airframe dynamics is modeled by a second-order non minimum phase transfer function, describing short period approximation. In the derivation of our OPTIMAL CONTROL problem, the actuator is assumed to be perfect and without limitation on fin deflection, whereas fin deflection limit is applied for the performance analysis of the presented optimal IGC solution. The problem geometry is assumed in one dimension and the final position and final time are fixed. The formulation is obtained in four different normalized forms to give more insight into the design and performance analysis of the optimal IGC strategy. In addition, guidance gains are obtained analytically in explicit form for steady-state solution. In most cases, the performance of IGC is better than that of IGC with steady-state gains, but has more computational burden; however, it is reasonable for today’s microprocessors. Curve fitting or look-up table may be used instead for implementation of optimal IGC strategy. Moreover, parametric study of nondimensional IGC parameters is carried out, such as weighing factor, dc gain, and short period frequency. Finally, the performance of both IGC strategies is evaluated with airframe model uncertainties.

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APA: Copy

SAJJADI, SEYED HESAM, & JALALI NAINI, SEYED HAMID. (2016). ANALYTICAL SOLUTION OF OPTIMAL LINE-OF-SIGHT STRATEGY FOR SIMPLIFIED INTEGRATED GUIDANCE AND CONTROL SYSTEM WITH STATIONARY TARGET. MODARES MECHANICAL ENGINEERING, 16(7), 361-372. SID. https://sid.ir/paper/178340/en

Vancouver: Copy

SAJJADI SEYED HESAM, JALALI NAINI SEYED HAMID. ANALYTICAL SOLUTION OF OPTIMAL LINE-OF-SIGHT STRATEGY FOR SIMPLIFIED INTEGRATED GUIDANCE AND CONTROL SYSTEM WITH STATIONARY TARGET. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(7):361-372. Available from: https://sid.ir/paper/178340/en

IEEE: Copy

SEYED HESAM SAJJADI, and SEYED HAMID JALALI NAINI, “ANALYTICAL SOLUTION OF OPTIMAL LINE-OF-SIGHT STRATEGY FOR SIMPLIFIED INTEGRATED GUIDANCE AND CONTROL SYSTEM WITH STATIONARY TARGET,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 7, pp. 361–372, 2016, [Online]. Available: https://sid.ir/paper/178340/en

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