This paper addresses the problem of achieving a desired impact angle against a stationary target with seeker's field-of-view limits. A bearings-only information based guidance law is investigated as a prospective solution. Analyzing the look-angle and the line-of-sight angle relationship, closed-form expressions of the guidance gains are derived for the desired impact angle and maximum look-angle constraints. A detailed analysis is carried out for lateral acceleration boundedness resulting in a design solution expressed in impact angle-maximum look angle space. Validating the guidance law, numerical simulations are performed using a kinematic vehicle model and a realistic model with given thrust and aerodynamic characteristics. Overall, the work offers an easily implementable guidance method with simple structure and closed-form guidance gains.

中文翻译：

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具有视角约束的仅轴承轨迹整形导引律

本文解决了针对具有导引头视野限制的静止目标实现所需撞击角度的问题。作为前瞻性解决方案，研究了仅基于轴承信息的制导律。分析视角和视线角度的关系，可以为所需的撞击角和最大视角约束导出制导增益的闭合表达式。对横向加速度有界性进行了详细分析，从而得出了以撞击角-最大视角空间表示的设计解决方案。为验证制导规律，使用运动学车辆模型和具有给定推力和空气动力学特性的现实模型进行数值模拟。总的来说，这项工作提供了一种易于实现的制导方法，具有简单的结构和封闭形式的制导增益。