Browsing Division of Mechanical Sciences by Advisor "Ratnoo, Ashwini"
Now showing items 1-9 of 9
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Advanced Guidance Laws for Field-of-View and Impact Angle Constrained Engagements
This thesis deals with the development of guidance laws for interceptors with seeker field-of-view (FOV) and impact angle constraints. Two classes of guidance problems, namely, field-of- view and impact angle constrained ... -
Analysis of Kinematic Constraints in Fixed-Wing UAV Formation Flying
Rise in autonomy has led to increase in usage of Unmanned Aerial Vehicles (UAVs) for various applications and has allowed the UAVs to perform complex and hazardous missions with ease. Formation of multiple UAVs finds ... -
Bearings-Only Information Based Guidance Law for Trajectory Shaping Applications
Munitions like projectiles and artillery mortars follow ballistic trajectory to hit the target. However, unguided munitions may miss the target due to external disturbances or errors in aerodynamic modeling. A guided ... -
Continuous-Curvature Path Planning Using Four Parameter Logistic Curves
Autonomous vehicles perform time and cost effective operations with minimal or no human effort and hence, have the potential to be used in civilian, commercial and military applications. Pertaining to these applications, ... -
Direct Methods for Optimal Ascent Guidance
An ascent guidance algorithm determines the thrust vector that allows the spacecraft to reach the desired orbit. Generally, optimal ascent guidance algorithms try to reach the orbit while minimizing mission time or fuel. ... -
Guidance Laws for Engagement Time Control
(2017-12-16)Autonomous aerial vehicles like missiles and unmanned aerial vehicles (UAVs) have attracted various military and civilian applications. The primary guidance objective of any autonomous vehicle is to reach the desired ... -
Satellite Attitude Determination from Terrestrial/Planetary Landmarks
Attitude Determination (AD) or specifying orientation relative to a known reference frame plays a crucial role in meeting the mission specific pointing goals of a satellite. Attitude sensors provide measurements of known ... -
Standoff Target Tracking Guidance using Line-of-Sight Distance Bifurcation
Unmanned aerial vehicle (UAV) applications that continue to receive significant attention are target acquisition and tracking. There exist many paths to track a stationary target from a prescribed altitude. The most widely ... -
Time-Optimal Guidance for Impact Angle Constrained Interception of Moving Targets
(2018-05-30)Various unmanned missions deploy vehicles such as missiles, torpedoes, ground robots, and unmanned aerial vehicles. Guidance strategies for these vehicles aim to intercept a target point and satisfy additional objectives ...