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Volume 15
Issue 19
10.3390/app151910746
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

An NETD-Based Optimization Model for the Operating Range of a Staring Infrared System

by
Chunsheng Sun
,
Bowen Yang
* and
Jingbo Sun
Naval University of Engineering, Wuhan 430033, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2025, 15(19), 10746; https://doi.org/10.3390/app151910746
Submission received: 2 September 2025 / Revised: 30 September 2025 / Accepted: 3 October 2025 / Published: 6 October 2025
Versions Notes

Abstract

Operating range is an important indicator for determining the detection capability of an infrared search and track (IRST) system. To address the deficiencies of a traditional range model, such as excessive parameters and calculations, a noise-equivalent temperature difference (NETD)-based range optimization model for staring IRST systems is derived, offering a new solution method. Compared with traditional range models, the proposed model uses fewer parameters, fully considers the spectral radiation characteristics of the object and background and separately fits the integral part into a function related only to the range, which simplifies calculation and improves accuracy. The proposed operating range model is applied to a flying object for sample calculation, and the accuracy of the model is verified by field experiments.
Keywords: NETD; staring infrared search and track system; operating range; focal plane NETD; staring infrared search and track system; operating range; focal plane

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MDPI and ACS Style

Sun, C.; Yang, B.; Sun, J. An NETD-Based Optimization Model for the Operating Range of a Staring Infrared System. Appl. Sci. 2025, 15, 10746. https://doi.org/10.3390/app151910746

AMA Style

Sun C, Yang B, Sun J. An NETD-Based Optimization Model for the Operating Range of a Staring Infrared System. Applied Sciences. 2025; 15(19):10746. https://doi.org/10.3390/app151910746

Chicago/Turabian Style

Sun, Chunsheng, Bowen Yang, and Jingbo Sun. 2025. "An NETD-Based Optimization Model for the Operating Range of a Staring Infrared System" Applied Sciences 15, no. 19: 10746. https://doi.org/10.3390/app151910746

APA Style

Sun, C., Yang, B., & Sun, J. (2025). An NETD-Based Optimization Model for the Operating Range of a Staring Infrared System. Applied Sciences, 15(19), 10746. https://doi.org/10.3390/app151910746

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