UltraHi-PrNet: An Ultra-High Precision Deep Learning Network for Dense Multi-Scale Target Detection in SAR Images

Autor: Zheng Zhou, Zongyong Cui, Zhipeng Zang, Xiangjie Meng, Zongjie Cao, Jianyu Yang

Publikováno v: Remote Sensing, Vol 14, Iss 21, p 5596 (2022)

Multi-scale target detection in synthetic aperture radar (SAR) images is one of the key techniques of SAR image interpretation, which is widely used in national defense and security. However, multi-scale targets include several types. For example, ta

Externí odkaz: https://doaj.org/article/fd3d434738d74239822163baab701b85

Triple buck converter – an efficient low-distortion switch-mode power amplifier topology

Autor: Mario Mauerer, Johann Walter Kolar

Publikováno v: The Journal of Engineering (2019)

A switch-mode power amplifier topology that can achieve both a high conversion efficiency and low-output signal distortion is introduced. Such systems are desirable for ultra-high precision amplifiers that, for example, drive actuators in nanometre-a

Externí odkaz: https://doaj.org/article/c71eeb15b6874b95a5fcf2b5c0fcf8a5

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Traceable reference full metrology chain for innovative aspheric and freeform optical surfaces accurate at the nanometer level

Autor: Mohamed Lamjed Bouazizi, Bandar Alzahrani, Youichi Bitou, Vít Lédl, Nabil Anwer, Xiangchao Zhang, Hichem Nouira, Ville Heikkinen, Yassir Arezki, Yohan Kondo, Rong Su, Christof Pruss, Charyar Mehdi-Souzani, Richard Leach, François Leprete, Pavel Posta, Christian Schober

Publikováno v: Arezki, Y, Su, R, Heikkinen, V, Leprete, F, Posta, P, Bitou, Y, Schober, C, Mehdi-Souzani, C, Alzahrani, B A M, Zhang, X, Kondo, Y, Pruss, C, Ledl, V, Anwer, N, Bouazizi, M L, Leach, R & Nouira, H 2021, ' Traceable reference full metrology chain for innovative aspheric and freeform optical surfaces accurate at the nanometer level ', Sensors, vol. 21, no. 4, 1103, pp. 1-19 . https://doi.org/10.3390/s21041103
Sensors
Volume 21
Issue 4
Sensors (Basel, Switzerland)
Sensors, Vol 21, Iss 1103, p 1103 (2021)

The design of innovative reference aspheric and freeform optical elements was investigated with the aim of calibration and verification of ultra-high accurate measurement systems. The verification is dedicated to form error analysis of aspherical and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bedaa2faff879e1240ca4dee18864a81
http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-126758

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