公开(公告)号：US09759605B2

公开(公告)日：2017-09-12

申请号：US15106696

申请日：2015-02-10

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Tianxu Zhang ,  Zhihui Yang ,  Jiayu Liu ,  Yutian Zhou ,  Shoukui Yao ,  Junqing Zhang

IPC: G01J3/28 ,  H01Q15/14 ,  G01J3/02

CPC classification number: G01J3/28 ,  G01J3/0208 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/2823 ,  H01Q15/14

Abstract: The present invention discloses a low-orbit satellite-borne image-spectrum associated detection method and payload. The method includes: (1) detecting and tracking moving targets and dynamic phenomena based on a pixel offset compensation method; and (2) performing multi-dimensional characteristic analysis on infrared spectra of the moving targets and the dynamic phenomena, to identify the moving targets and the dynamic phenomena. The payload includes a two-dimensional servo turntable, an infrared reflector, a multispectral infrared optical system, an infrared imaging unit, a broadband infrared spectrum measuring unit, a data processing unit and a control unit. The present invention can achieve coaxiality of an infrared imaging optical path and a short/medium/long wave infrared spectrum measuring optical path, detect infrared image information and infrared spectra of moving targets and dynamic phenomena simultaneously and realize automatic detection, tracking, spectrum measurement and identification of multiple moving targets and dynamic phenomena in a scene, and has high identification efficiency and high tracking and positioning accuracy.

公开(公告)号：US11408736B2

公开(公告)日：2022-08-09

申请号：US16455812

申请日：2019-06-28

Applicant: Huazhong University of Science and Technology

Inventor： Tianxu Zhang ,  Yutian Zhou ,  Zongyang Cui ,  Lei Zhang ,  Shoukui Yao ,  Mingming Que

IPC: G01C21/02 ,  B64G1/36 ,  G01C21/24 ,  G01S3/781 ,  G06F9/38 ,  G06F9/48 ,  G06T7/246 ,  G08B13/196 ,  G06V20/13

Abstract: A master control system for a remote-sensing satellite image processing device, the system including: a master control management module, a first FPGA module, and a second FPGA module. The master control management module is in connection and communication with the first FPGA module, the second FPGA module, and a housekeeping computer. The first FPGA module is in connection and communication with the second FPGA module and a remote-sensing satellite image processing device. The master control management module is adapted to perform assignment of tasks. The first FPGA module is adapted to communicate with a processor in the satellite image processing device, monitor an operation state of the satellite image processing device, send the operation state information to the master control management module, receive a task assignment command issued by the master control management module, and transmit the task assignment command to the satellite image processing device.

公开(公告)号：US11162847B2

公开(公告)日：2021-11-02

申请号：US16458221

申请日：2019-07-01

Applicant: Huazhong University of Science and Technology

Inventor： Tianxu Zhang ,  Fenglin Wang ,  Shoukui Yao ,  Lei Lu ,  Xu Cheng

IPC: G01J5/00 ,  G06N20/00

Abstract: A method of attitude estimation of a spotted target. The method includes an offline training and an online estimation. The offline training includes establishing a three-dimensional geometric model of a target, performing region division according to the structure of the target, establishing an object-space temperature distribution model for each region of the target, establishing an infrared radiation transmission model of an intra-atmospheric target in six attitudes in observation by a detection system, constructing an image-space radiant energy model of the target in the six attitudes using the object-space temperature distribution model and the infrared radiation transmission model, and performing simulation calculation to obtain an infrared spectral curve of the spotted target regarding wavelength versus image-space-radiant-energy-of-target, so as to establish a mapping database regarding target-attitude versus spectrum.

公开(公告)号：US09921102B2

公开(公告)日：2018-03-20

申请号：US15104905

申请日：2015-02-10

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Tianxu Zhang ,  Xiaobing Dai ,  Xiangyan Liu ,  Jindong Fei ,  Li Liu ,  Hongtao Yu ,  Shoukui Yao

IPC: G01J3/02 ,  H04N5/33 ,  G01J3/45 ,  G01H9/00 ,  G01J3/28 ,  H04N5/225 ,  H04N5/232

CPC classification number: G01J3/0202 ,  G01H9/004 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0264 ,  G01J3/2823 ,  G01J3/45 ,  G01J2003/2836 ,  H04N5/2251 ,  H04N5/2252 ,  H04N5/2254 ,  H04N5/23241 ,  H04N5/33

Abstract: A moving platform borne infrared image-spectrum associated detection system includes an optical hood, a broadband optical system, a two-dimensional servo system, an infrared optical fiber, a Fourier interference spectrum module, an image-spectrum associated detection processing module, a power supply module, and a display module. Incident light enters from the optical hood to the broadband optical system, and is split by a spectroscope. Transmitted light is focused by a long-wave imaging lens group on an infrared detector for imaging. Reflected light is focused by a broadband spectrum lens group to an optical fiber coupler, enters the Fourier interference spectrum module through the infrared optical fiber to form an interference pattern, and undergoes Fourier transform to obtain spectral data.