Application of partial sliding mode in guidance problem.
1School of Electrical and Electronic Engineering, Shiraz University of Technology, Modares Blvd., Shiraz, Iran. shafiei@sutech.ac.ir
ISA Transactions
|December 25, 2012
Summary
A new 3D guidance law uses partial sliding mode control to intercept maneuvering targets. This method forces only some state variables onto sliding surfaces for finite-time interception.
Area of Science:
- Aerospace Engineering
- Control Systems Theory
Background:
- Guidance law design is crucial for missile interception.
- Intercepting highly maneuvering targets presents significant challenges in 3D space.
Purpose of the Study:
- To develop a novel 3D guidance law for enhanced missile interception capabilities.
- To address the limitations of existing guidance laws against dynamic targets.
Main Methods:
- A partial sliding mode control technique is employed.
- State variables in the guidance system dynamics are classified based on stabilization properties.
- Only a subset of state variables are directed to reach and slide on partial sliding surfaces.
Main Results:
- The proposed guidance law ensures finite-time interception of targets.
- The method effectively handles highly maneuvering targets in three dimensions.
- Simulations and analysis confirm the guidance law's effectiveness.
Conclusions:
- The partial sliding mode guidance law offers a robust solution for 3D missile guidance.
- This approach enhances interception performance against dynamic threats.
- The finite-time convergence property is a key advantage.
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