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Wenxuan Guo
Farming contour and terrace fields using automated guidance systems with global navigation satellite system (GNSS) receivers requires appropriate geographic features for effective guidance and soil and water conservation. The objective of this paper was ...
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Hyeong-Geun Kim and Jongho Shin
This paper proposes an impact time control guidance law based on exact nonlinear kinematics equations. To address the impact time control problem of providing enhanced intercept accuracy, we formulated an error variable whose regulation ensures the fulfi...
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Chendi Li, Jiang Wang and Peng Huang
This correspondence proposes an optimal cooperative guidance law for protecting a target from a guided missile. The linearized three-body kinematics using the line-of-sight (LOS) triangle concept is formulated, and a new concept called error distance is ...
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Ahmed Mehamed Oumer and Dae-Kwan Kim
Autonomous rendezvous and docking (RVD) fuel optimization with field-of-view and obstacle avoidance constraints is a nonlinear and nonconvex optimization problem, making it computationally intensive for onboard computation on CubeSats. This paper propose...
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Yifan Deng, Jinlei Ren, Xu Wang and Yuanli Cai
To address the need for flexible energy management and impact angle control in the midcourse guidance of modern long-range antiballistic interceptors, an impact time and angle guidance law is designed for the exoatmospheric midcourse flight of antiballis...
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Jia Song, Xindi Tong, Xiaowei Xu and Kai Zhao
In this paper, a real-time reentry guidance law for hypersonic vehicles is presented to accomplish rapid, high-precision, robust, and reliable reentry flights by leveraging the Time to Vector (Time2vec) and transformer networks. First, referring to the t...
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Xiaoma Liu, Yang Han, Peng Li, Hongwu Guo and Wenqi Wu
The problem that two cooperative missiles intercept a maneuvering target while imposing a desired relative geometry is investigated in the paper. Firstly, a three-dimensional (3D) estimation model for cooperative target tracking is proposed and the obser...
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Hyeong-Geun Kim and Jun-Yong Lee
This paper proposes an optimal impact angle control guidance law for homing missiles with a narrow field-of-view of the seekers. As groundwork for designing a guidance law, we first present a general guidance structure that can achieve any terminal const...
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Shilei Zhao, Wanchun Chen and Liang Yang
This paper aims to develop an optimal guidance law for exo-atmospheric interception, in which impact-angle constraint and acceleration limit are considered. Firstly, an optimal control problem with constraints on terminal miss and impact-angle is formula...
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Hang Ding, Dongdong Wang, Chuanjun Li, Xiao Liang and Xingcheng Li
The target can deceive the flight vehicle by releasing an infrared decoy to make the line-of-sight (LOS) angle rate deflect greatly, thus causing the flight vehicle to miss the target. Therefore, in order to accurately strike the target in complex advers...
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Chen Xu, Yang Wang, Zhiqi Niu, Sheng Luo and Fenghuai Du
In this paper, by accounting for the angle constraint (AC) and autopilot lag compensation (ALC), a novel fixed-time convergent guidance law is developed based on a fixed-time state observer and bi-limit homogeneous technique. The newly proposed guidance ...
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Haizhao Liang, Zhi Li, Jinze Wu, Yu Zheng, Hongyu Chu and Jianying Wang
The guidance problem of a confrontation between an interceptor, a hypersonic vehicle, and an active defender is investigated in this paper. As a hypersonic multiplayer pursuit-evasion game, the optimal guidance scheme for each adversary in the engagement...
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Qingli Shi, Hua Wang and Hao Cheng
This paper addresses the issue of a complex three-dimension (3-D) terminal guidance process that is used against maneuvering targets while considering both the terminal impact angle (TIA) and field-of-view (FOV) angle constraints. According to the highly...
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Xiangxiang Li, Wanchun Chen, Zhongyuan Chen, Ting Wang and Heng Shi
A fixed-time nonlinear circular guidance law that satisfies the impact time constraint is proposed. By utilizing the geometric principle that the length of a circular arc connecting the missile and the target can be analytically calculated, the exact exp...
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Liang Jiang, Ying Nan, Yu Zhang and Zhihan Li
Anti-interception guidance can enhance a hypersonic glide vehicle (HGV) compard to multiple interceptors. In general, anti-interception guidance for aircraft can be divided into procedural guidance, fly-around guidance and active evading guidance. Howeve...
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Zhanyuan Jiang, Jianquan Ge, Qiangqiang Xu and Tao Yang
The paper proposes a two-dimensional impact time control cooperative guidance law under constant velocity and a three-dimensional impact time control cooperative guidance law under time-varying velocity, which can both improve the penetration ability and...
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Treba Marsh, Mary Fischer
Currently there is a mix of accounting guidance for agriculture producers in the US that is both GAAP including Accounting Statement Codification 905 and non-GAAP financial guidelines. Should the US adopt International Financial Reporting Standards (IFRS...
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Yongshang Wei, Tianxi Liu, Cheng Wei, Ruixiong Zhang and Haiyu Gu
In this study, differential game theory was applied to propose two guidance laws of a pursuer in an orbit pursuit?evasion?defense game. One was a conservative guidance law of maneuvering to absolute safety before pursuing the evader, and the other was a ...
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Quancheng Li, Yonghua Fan, Tian Yan, Xuechao Liang and Jie Yan
Aimed at the poor performance of guidance algorithms designed based on a linearized model in active defense under large leading angle deviation, both-way and one-way cooperative sliding mode guidance algorithms based on the smooth nonsingular terminal sl...
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Shuai Ma, Xugang Wang and Zhongyuan Wang
The problem of impact time control guidance with field-of-view constraint is addressed based on time-varying sliding mode control. The kinematic conditions that satisfy the impact time control with field-of-view constraint are defined, and then a novel t...
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