Photonics-based radar with a photonic de-chirp receiver has the advantages of broadband operation and real-time signal processing, but it suffers from interference from image frequencies and other undesired frequency-mixing components, due to single-channel real-valued photonic frequency mixing. In this paper, we propose a photonics-based radar with a photonic frequency-doubling transmitter and a balanced in-phase and quadrature (I/Q) de-chirp receiver. This radar transmits broadband linearly fr
2021-02-22 10:04:42 1.45MB
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强力推荐ISAR转台成像程序,发送线性调频波。ISAR成像在进行了平动补偿之后,模型等效为转台模型
2021-02-21 11:52:00 2KB LFM ISAR Imaging
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Defect Recognition in Thermosonic Imaging
2021-02-21 09:08:27 2.62MB 研究论文
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Digital radiography (DR) and whole-body fluorescent optical imaging (WFOI) have been widely applied in the field of molecular imaging, with the advantages in tissues and functional imaging. The integration of them contributes to the development and discovery of medicine. We introduce an equipment, performance of which is better than that of another molecular imaging system manufactured by Kodak Corp. It can take real-time small animal imaging in vivo, with lower cost and shorter development cycl
2021-02-10 16:05:39 395KB 分子成像 透射成像 全域荧光 LabVIEW
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Spectral domain polarization-sensitive optical coherence tomography (SDPS-OCT) is a depth-resolved polarization-sensitive interferometry which integrates polarization optics into spectral domain optical coherence tomography (SD-OCT). This configuration can obtain birefringence information of samples
2021-02-10 16:05:35 835KB 光学相干 双折射 偏振 170.4500
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The objective of this study is to demonstrate that tensile stress resulting due to applied force on cornea can be accurately measured by using a time-domain common-path optical coherence tomography (OCT) system with an external contact reference. The unique design of the common-path OCT is utilized
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Spectrum-Oriented FFBP Algorithm in Quasi-Polar Grid for SAR Imaging on Maneuvering Platform
2021-02-08 19:07:08 944KB 研究论文
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Coherent Auto-Calibration of APE and NsRCM under Fast Back-Projection Image Formation for Airborne SAR Imaging in Highly-Squint Angle
2021-02-08 19:07:01 3.75MB 研究论文
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We report on a novel dibenzothiophene-based two-photon fluorescent probe for selective nuclear bioimaging, which contains bilaterally symmetrical pyridine rings connected by a central conjugated-bridge dibenzothiophene. This probe possesses a large two-photon absorption cross-section of 471 GM, yields a 25-fold enhancement of the fluorescence titration, and a stronger photostability for nuclei labeling than existing probes. The real-time observation period is a minimum of 1800 s under a femtosec
2021-02-07 16:02:59 717KB
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java获取图片属性的jar包
2021-02-07 09:07:54 690KB jar java
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