公开(公告)号：US20230213599A1

公开(公告)日：2023-07-06

申请号：US18148457

申请日：2022-12-30

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Tianxu ZHANG ,  Hanyu HONG ,  Bin TIAN ,  Yuehuan WANG ,  Tao ZHANG ,  Qinghui ZHANG ,  Cheng YANG ,  Jiawei WANG ,  Jiandong TAN

IPC: G01R33/022 ,  G01V3/08

CPC classification number: G01R33/022 ,  G01V3/081

Abstract: Disclosed is an inverse estimation-based radius calculation method and system for ferromagnetic target detection. The calculation method includes a data acquisition step and a ferromagnetic target detection radius calculation step. Distrubance of a scale model to power frequency electromagnetic waves is used to inversely estimate a corresponding ferromagnetic target detection radius. Inverse estimation is performed separately for an air layer and a sea water layer according to test results of multiple scale model tests and in consideration of both a stationary state and a motion state of the scale model, so as to acquire a ferromagnetic target detection radius calculation formula. Weights of factors such as mass, speed, depth, and height are great in inverse estimation, so that inverse estimation precision is improved. The majority of background noise interference can be screened out of the power frequency electromagnetic waves.

公开(公告)号：US20170287558A1

公开(公告)日：2017-10-05

申请号：US15629714

申请日：2017-06-21

Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Qun LIU ,  Tao ZHANG ,  Xiangshui MIAO ,  Yi LI ,  Yaxiong ZHOU ,  Tianpeng MIAO

IPC: G11C13/00

CPC classification number: G11C13/0069 ,  G11C13/0007 ,  G11C13/0097 ,  G11C2213/77

Abstract: A processor including a computing and memory structure including X in number integration units and X in number communication units, and a control unit. The integration units are computing and memory units (CMUs), each computing and memory unit (CMU) is connected to a corresponding communication unit. The control unit is configured to produce control signals according to the commands, connect communication networks between the CMUs, choose operand addresses and result storage addresses, and search for one or a plurality of idle CMUs when extra CMUs are required for an operation. Each computing and memory unit includes M in number bit units and M−1 in number vertical line switches. Each bit unit includes a resistor, a horizontal line switch and N in number memristors. X is a positive integer greater than or equal to 2; M is a positive integer greater than or equal to 1.

公开(公告)号：US20230243997A1

公开(公告)日：2023-08-03

申请号：US18148460

申请日：2022-12-30

Applicant: Huazhong University of Science and Technology ,  Wuhan Institute of Technology

Inventor： Tianxu ZHANG ,  Qinghui ZHANG ,  Cheng YANG ,  Tao ZHANG ,  Jiawei WANG ,  Jiandong TAN

IPC: G01V3/17 ,  G01V3/38 ,  G01V3/08 ,  G01V3/165

CPC classification number: G01V3/17 ,  G01V3/38 ,  G01V3/083 ,  G01V3/165

Abstract: Disclosed are an underwater ferromagnetic target detection method and system employing multiple power frequency radiation sources, pertaining to the technical field of non-acoustic underwater detection. The method includes: a power transmission network generating a power frequency electromagnetic field in a spatial range, and an underwater ferromagnetic target generating an electromagnetic field under the combined action of the power frequency electromagnetic field and seawater inside and outside the underwater ferromagnetic target; if there are multiple ships on the water serving as secondary radiation sources acting on the underwater ferromagnetic target, obtaining a secondary magnetic field generated by the underwater ferromagnetic target, and adding the secondary magnetic field and the electromagnetic field generated by the underwater ferromagnetic target under the combined action of the power frequency electromagnetic field and the seawater inside and outside the underwater ferromagnetic target to obtain a total electromagnetic field generated by the underwater ferromagnetic target; and acquiring a power frequency electromagnetic field distribution around the underwater ferromagnetic target, and performing underwater ferromagnetic target detection according to the power frequency electromagnetic field distribution. The present invention can enhance power frequency electromagnetic field signals of an underwater ferromagnetic target, and achieves underwater ferromagnetic target detection.