Error Analysis and Optimization of Structural Parameters of Spatial Coordinate Testing System Based on...

Area of Science:

• Engineering
• Physics
• Defense Technology

Background:

• Current methods for determining munitions explosion spatial coordinates, like acoustic-electric detection and high-speed imaging, face limitations in field conditions, response speed, and cost.
• There is a need for a more efficient and accurate real-time testing technology for explosion point spatial coordinates.

Purpose of the Study:

• To propose and validate a novel spatial coordinate testing method for munitions explosion points using a 2D position-sensitive detector (PSD) intersection.
• To analyze the influence of system parameters on test accuracy and optimize deployment for improved efficiency.

Main Methods:

• Construction of a mathematical model for the spatial coordinate testing system.
• Development of an error propagation model to analyze the impact of structural parameters.
• Simulation and experimental validation of the system's accuracy under varying azimuth and pitch angles, and optical axes intersection positions.

Main Results:

• The proposed 2D PSD intersection method demonstrates faster response and better real-time performance compared to existing techniques.
• Optimal system accuracy is achieved within specific azimuth (20°-50°) and pitch (-2.5°-2.5°) angle ranges.
• Selecting the optical axes intersection in the negative Zw-axis region of the world coordinate system further enhances accuracy.

Conclusions:

• The 2D PSD intersection method provides a cost-effective and accurate solution for real-time explosion point spatial coordinate testing.
• Strategic selection of system structure parameters significantly improves test accuracy and deployment efficiency in long-distance field conditions.