The Development Status and Trend of Airborne Multifunctional Radar

Gao, Tianhao; Qu, Wenyu; Wang, Pengda; Dong, Yaoyao; Jiang, Haohao; Zhu, Bakun

doi:10.1109/aiid51893.2021.9456504

Cited by 2 publications

(4 citation statements)

References 2 publications

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“…Te F-35 Lightning II [45] is a single-seat, single-engine, all-weather stealth multi-role combat fghter designed and manufactured by Lockheed Martin, equipped with an AN/ APG-81 APAA. Te F-35 is mainly used for front-line support, target bombing, air defense interception, and other tasks.…”

Section: Airbornementioning

confidence: 99%

“…It belongs to the ffth-generation fghter and has a high stealth design, advanced electronic system, and supersonic cruise capability. Te F-22 Raptor [45], jointly developed by Lockheed Martin and Boeing, is a single-seat, twin-engine, ffth-generation, extremely advanced tactical fghter equipped with AN/APG-77 APAA. Te combination of stealth, sensitivity, accuracy, and situation awareness makes the F-22 the world's best comprehensive performance fghter today.…”

Section: Airbornementioning

confidence: 99%

“…It is mainly used for maritime air defense and also for ground attack. McDonnell Douglas F-15E Strike Eagle [45] is a two-seat, twin-engine, supersonic fghter with ground attack as its main mission. It is equipped with AN/APG-63(V3) APAA and has the ability of ground attack and air superiority.…”

Section: Airbornementioning

confidence: 99%

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Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna

Wang

et al. 2023

International Journal of Antennas and Propagation

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Active phased array antenna (APAA) is a representative of complex electronic equipment, and it plays significant roles in scenarios such as battlefield situation perception, aviation guidance, and communication. It has become the core equipment in land, navigation, and aeronautical applications. With the continuous improvement of technical changes and military requirements, the working frequency band, pointing accuracy, gain, and low sidelobe level of APAA increase, and the multi-disciplinary design contradiction between antenna electrical performance and structure and temperature becomes increasingly prominent. As a result, the electrical performance of APAA in service is prone to be affected by the external complex environments. The structural-electromagnetic-thermal (SET) coupling problem has become a key problem restricting the development of APAA. This paper has summarized the structural features and environmental loads of advanced APAA on different platforms and provided design basis and principle for antenna designer. And then the SET coupling theory of APAA has been introduced, which can be applied in both the design and manufacturing stage, as well as the performance control technology in service environment of APAA. This theory helps to analyze the impact of environmental factors, such as antenna structure deformation, radome high-temperature ablation, and feed errors, on the antenna's performance. For 128 × 768 spaceborne array antenna, in the range of 25∼85°C, the gain of antenna decreases with the increase of operating temperature and decreases by 0.015 dB with each increase of 1°C. The key design parameters in the fields of antenna manufacturing accuracy, efficient heat dissipation, and lightweight design are also analysed; for 32 × 32 rectangular planar phased array antenna, the gain of antenna decreases by 2.715 dB when the random error of installation position in x, y, and z direction reaches 1/10 of the wavelength. In addition, condition monitoring, displacement field reconstruction, and electrical performance compensation of APAA have also been touched to help engineers maintain and guarantee the antenna performance throughout its life cycle. Finally, the future research direction of SET technology of APAA has been discussed, and SET technology is extended to more fields such as antenna parameter uncertainty, high-frequency circuit electronics manufacturing, and electronic equipment performance guarantee.

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Section: Airbornementioning

confidence: 99%

Section: Airbornementioning

confidence: 99%

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Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna

Wang

et al. 2023

International Journal of Antennas and Propagation

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“…In recent decades, with the significant improvement in the survivability of aircrafts, traditional infrared and radar detection methods are facing serious efficiency problems [1][2][3]. In fact, when an aircraft flies in the atmosphere, in addition to detecting the high temperature caused by the intense friction between the target body and the atmosphere, the interaction between the target and the atmosphere will form a high-temperature, high-pressure shock wave flow field.…”

Section: Introductionmentioning

confidence: 99%

Optimization Method for Space-Based Target Detection System Based on Background-Oriented Schlieren

Li,

Zhou,

et al. 2024

Sensors

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Currently, the visual detection of a target’s shock flow field through background schlieren technology is a novel detection system. However, there are very few studies on the long-distance background schlieren imaging mechanism and its application in system design in the field of target detection. This paper proposes a design optimization method for space-based BOS detection system metrics. By establishing sensitivity evaluation models and image signal-to-noise ratio evaluation models for BOS detection systems, the influence of the different flight parameters and key parameters of BOS systems (detection spectral bands and spatial resolution) on target detection efficiency is explored. Furthermore, an optimization method based on the image signal-to-noise ratio of the BOS system and the overall metrics for specific scenarios are provided. The simulation results demonstrate that under satellite background images and speckle background images, the system metrics can detect and identify the schlieren of high-speed targets, with better applicability to disordered and complex real background images. This research contributes to advancing the development of high-speed target detection technology based on BOS.

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The Development Status and Trend of Airborne Multifunctional Radar

Cited by 2 publications

References 2 publications

Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna

Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna

Optimization Method for Space-Based Target Detection System Based on Background-Oriented Schlieren

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