Optimization of the PNG Law for a Dual-Spin Mortar with Fixed Canards

The limited instantaneous overload available and the curved trajectory lead to adaptivity problems for the proportional navigation guidance (PNG) of a guided mortar with a fixed-canard trajectory correction fuze. In this paper, the optimization of a PNG law with gravity compensation is established....

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Autores principales:	Pengfei Liu, Hongsong Cao, Shunshan Feng, Hengzhu Liu, Lifei Cao
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/e15777835e6348d8bd517a34ebc343a1
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spelling	oai:doaj.org-article:e15777835e6348d8bd517a34ebc343a12021-11-15T01:19:14ZOptimization of the PNG Law for a Dual-Spin Mortar with Fixed Canards1563-514710.1155/2021/1741260https://doaj.org/article/e15777835e6348d8bd517a34ebc343a12021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/1741260https://doaj.org/toc/1563-5147The limited instantaneous overload available and the curved trajectory lead to adaptivity problems for the proportional navigation guidance (PNG) of a guided mortar with a fixed-canard trajectory correction fuze. In this paper, the optimization of a PNG law with gravity compensation is established. Instead of using the traditional empirical method, the selection of the proportional navigation constants is formulated as an optimization problem, which is solved using an intelligent optimization algorithm. Two optimization schemes are proposed for constructing corresponding optimization models. In schemes 1 and 2, the sum squared error between the impact point and target and the circular error probability (CEP), respectively, are taken as the objective function. Monte Carlo simulations are conducted to verify the effectiveness of the two optimization schemes, and their guidance performance is compared through trajectory simulations. The simulation results show that the impact point dispersion can be efficiently reduced under both proposed schemes. Scheme 2 achieves a lower CEP, which is approximately 2.9 m and 2.4 times smaller than that achieved by scheme 1. Moreover, the mean impact point is closer to the target.Pengfei LiuHongsong CaoShunshan FengHengzhu LiuLifei CaoHindawi LimitedarticleEngineering (General). Civil engineering (General)TA1-2040MathematicsQA1-939ENMathematical Problems in Engineering, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939 Pengfei Liu Hongsong Cao Shunshan Feng Hengzhu Liu Lifei Cao Optimization of the PNG Law for a Dual-Spin Mortar with Fixed Canards
description	The limited instantaneous overload available and the curved trajectory lead to adaptivity problems for the proportional navigation guidance (PNG) of a guided mortar with a fixed-canard trajectory correction fuze. In this paper, the optimization of a PNG law with gravity compensation is established. Instead of using the traditional empirical method, the selection of the proportional navigation constants is formulated as an optimization problem, which is solved using an intelligent optimization algorithm. Two optimization schemes are proposed for constructing corresponding optimization models. In schemes 1 and 2, the sum squared error between the impact point and target and the circular error probability (CEP), respectively, are taken as the objective function. Monte Carlo simulations are conducted to verify the effectiveness of the two optimization schemes, and their guidance performance is compared through trajectory simulations. The simulation results show that the impact point dispersion can be efficiently reduced under both proposed schemes. Scheme 2 achieves a lower CEP, which is approximately 2.9 m and 2.4 times smaller than that achieved by scheme 1. Moreover, the mean impact point is closer to the target.
format	article
author	Pengfei Liu Hongsong Cao Shunshan Feng Hengzhu Liu Lifei Cao
author_facet	Pengfei Liu Hongsong Cao Shunshan Feng Hengzhu Liu Lifei Cao
author_sort	Pengfei Liu
title	Optimization of the PNG Law for a Dual-Spin Mortar with Fixed Canards
title_short	Optimization of the PNG Law for a Dual-Spin Mortar with Fixed Canards
title_full	Optimization of the PNG Law for a Dual-Spin Mortar with Fixed Canards
title_fullStr	Optimization of the PNG Law for a Dual-Spin Mortar with Fixed Canards
title_full_unstemmed	Optimization of the PNG Law for a Dual-Spin Mortar with Fixed Canards
title_sort	optimization of the png law for a dual-spin mortar with fixed canards
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/e15777835e6348d8bd517a34ebc343a1
work_keys_str_mv	AT pengfeiliu optimizationofthepnglawforadualspinmortarwithfixedcanards AT hongsongcao optimizationofthepnglawforadualspinmortarwithfixedcanards AT shunshanfeng optimizationofthepnglawforadualspinmortarwithfixedcanards AT hengzhuliu optimizationofthepnglawforadualspinmortarwithfixedcanards AT lifeicao optimizationofthepnglawforadualspinmortarwithfixedcanards
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Optimization of the PNG Law for a Dual-Spin Mortar with Fixed Canards

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