Space target optical characteristic calculation model and method in the photoelectric detection target

Area of Science:

• Optical Engineering
• Astrophysics
• Remote Sensing

Background:

• Improving the performance and sensitivity of photoelectric detection systems for space targets is crucial for space surveillance and exploration.
• Accurate modeling of space target optical characteristics is essential for reliable detection and analysis.

Purpose of the Study:

• To develop an improved calculation method for space target optical characteristics.
• To enhance the performance and sensitivity of photoelectric detection targets.
• To establish a comprehensive model for space target spectral characteristics.

Main Methods:

• Utilizing surface element mesh analysis and bidirectional reflection distribution function to model space target spectral characteristics.
• Developing incident radiation energy calculation functions for the photoelectric detection target's optical lens entrance pupil.
• Defining detection sensitivity to establish minimum flux calculation functions.

Main Results:

• A space target spectral characteristic model was established.
• Functions for calculating incident radiation energy and total spectral radiance intensity were derived.
• Minimum detectable flux and the impact of incident angles on radiation energy were analyzed.
• Spectral illuminations and spectral radiation intensity changes were demonstrated under various conditions.

Conclusions:

• The proposed method enhances the performance and sensitivity of photoelectric detection targets.
• The developed models provide accurate calculations for space target optical characteristics.
• This research contributes to more effective space target detection and monitoring.