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1.发明授权公开(公告)号：US11210570B2
公开(公告)日：2021-12-28
申请号：US15878188
申请日：2018-01-23
发明人： Dan Shen , Peter Zulch , Marcello Disasio , Erik Blasch , Genshe Chen , Zhonghai Wang , Jingyang Lu
摘要： The present disclosure provides a method for joint manifold learning based heterogenous sensor data fusion, comprising: obtaining learning heterogeneous sensor data from a plurality sensors to form a joint manifold, wherein the plurality sensors include different types of sensors that detect different characteristics of targeting objects; performing, using a hardware processor, a plurality of manifold learning algorithms to process the joint manifold to obtain raw manifold learning results, wherein a dimension of the manifold learning results is less than a dimension of the joint manifold; processing the raw manifold learning results to obtain intrinsic parameters of the targeting objects; evaluating the multiple manifold learning algorithms based on the raw manifold learning results and the intrinsic parameters to determine one or more optimum manifold learning algorithms; and applying the one or more optimum manifold learning algorithms to fuse heterogeneous sensor data generated by the plurality sensors.
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公开(公告)号：US10778291B1
公开(公告)日：2020-09-15
申请号：US16358114
申请日：2019-03-19
发明人： Zhonghai Wang , Lun Li , Jingyang Lu , Genshe Chen , Weifeng Su , Xingping Lin , Xingyu Xiang , Wenhao Xiong
IPC分类号： H04B7/0413 , H04B17/391 , H04B17/336
摘要： A multiple-input and multiple-output (MIMO) bolt-on device for a single-input and single-output (SISO) radio, a MIMO channel emulator for testing the MIMO bolt-on device, and a MIMO channel emulation method are provided. The MIMO bolt-on device includes: a plurality of antennas, a multi-channel receiver, a plurality of couplers, a micro-controller, and a switch device. The multi-channel receiver includes a plurality of channels for signal transmission. Each coupler is configured to couple the multi-channel receiver with one of the plurality of antennas. The micro-controller is coupled to the multi-channel receiver to compare signals from the plurality of channels, thereby identifying a channel with a highest signal-to-noise (SNR) among the plurality of channels. The switch device is coupled to the micro-controller and configured to select an antenna corresponding to the channel with the highest SNR among the plurality of antennas for a connection between a selected antenna and the SISO radio.
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公开(公告)号：US10739467B2
公开(公告)日：2020-08-11
申请号：US15874526
申请日：2018-01-18
发明人： Zhonghai Wang , Bin Jia , Xingping Lin , Tao Wang , Xingyu Xiang , Genshe Chen , Dan Shen , Khanh Pham , Erik Blasch
摘要： A method for testing satellite signal receiver antenna is provided. The method includes: determining a satellite constellation state indicating status of a plurality of satellites in a satellite constellation; calculating, based on the determined satellite constellation state, initial positions of a plurality of satellite antennas that are used for emulating the satellite constellation; moving the plurality of satellite antennas to the initial positions of the plurality of satellite antennas; calibrating a phase delay of each of the plurality of satellite antennas; broadcasting, by the plurality of satellite antennas, satellite signals to test a satellite signal receiver antenna; determining a movement plan for the plurality of satellite antennas based on the satellite constellation state; and moving the plurality of satellite antennas based on the movement plan to emulate a propagation of the satellite constellation.
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公开(公告)号：US10338207B2
公开(公告)日：2019-07-02
申请号：US15344365
申请日：2016-11-04
发明人： Zhonghai Wang , XingPing Lin , Genshe Chen , Dan Shen , Bin Jia , Gang Wang , Khanh Pham , Erik Blasch
摘要： The present disclosure provides a gated range scanning linear frequency modulated continuous wave (LFMCW) radar structure, including: a frequency synthesizer, a first mixer, a second mixer, a first filter, and a third mixer. The frequency synthesizer is configured for generating a first local oscillating signal and a second local oscillating signal, a frequency of the first local oscillating signal varying in a frequency range, each frequency corresponding to a sub-range of a coverage range scanned by the LFMCW radar structure. The first mixer is configured for mixing a copy of a transmitted signal and the first local oscillating signal to generate a first output signal (the receiver's first local oscillator). The second mixer is configured for mixing the first output signal and a received signal from a receiving antenna to generate a second output signal that includes an intermediate frequency (IF) signal being received by the first filter.
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公开(公告)号：US11770160B2
公开(公告)日：2023-09-26
申请号：US16813250
申请日：2020-03-09
发明人： Xingping Lin , Genshe Chen , Khanh Pham , Erik Blasch , Zhonghai Wang
IPC分类号： H04B7/0413 , G01S7/35 , G01S7/03 , G01S13/34
CPC分类号： H04B7/0413 , G01S7/032 , G01S7/354 , G01S13/34
摘要： A hidden chamber detector includes a linear frequency modulated continuous wave (LFMCW) radar, a synthetic aperture radar (SAR) imaging processor, and a time division multiple access (TDMA) multiple input multiple output (MIMO) antenna array, including a plurality of transmitting and receiving (Tx-Rx) antenna pairs. A Tx-Rx antenna pair is selected, in a time division manner, as a Tx antenna and an Rx antenna for the LFMCW radar. The LFMCW radar is configured to transmit an illumination signal, receive an echo signal, convert the echo signal to a baseband signal, collect baseband samples, and send the collected samples to the SAR imaging processor. The SAR imaging processor is configured to receive the collected samples, collect structure/configuration of the antenna array and scanning information, and form an SAR image based on the collected samples, the structure/configuration of the antenna array, and the scanning information.
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公开(公告)号：US11758272B2
公开(公告)日：2023-09-12
申请号：US16890675
申请日：2020-06-02
发明人： Xingping Lin , Genshe Chen , Khanh Pham , Erik Blasch , Zhonghai Wang
IPC分类号： H04N23/695 , G06N20/00 , H04N5/33 , H04N23/67
CPC分类号： H04N23/695 , G06N20/00 , H04N5/33 , H04N23/675
摘要： An apparatus includes a camera for capturing an image at a first moment; a range finder for measuring a distance to an object at a center of the image; a rotatable mounting platform, fixedly hosting the camera and the range finder; and a controller. The controller is configured to receive the captured image and the measured distance; determine whether a target of interest (TOI) appears in the image; in response to determining a TOI appearing in the image, determine whether the TOI appears at the center of the image; calculate position parameters of the rotatable mounting platform for centering the TOI in an image to be captured at a second moment, separated from the first moment by a pre-determined time interval; control the rotatable mounting platform to rotate according to the calculated position parameters; and calculate and store the position parameters of the TOI with respect to the apparatus.
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公开(公告)号：US10680340B2
公开(公告)日：2020-06-09
申请号：US15983266
申请日：2018-05-18
发明人： Xingping Lin , Zhonghai Wang , Genshe Chen , Erik Blasch , Khanh Pham
摘要： A cone-based multi-layer wide band antenna is provided, including a cone-based member having a multi-layer structure. The multi-layer structure includes a first layer conical structure, and the first layer conical structure has a height and a base radius configured to provide a desired impedance of the antenna.
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公开(公告)号：US10291347B2
公开(公告)日：2019-05-14
申请号：US15397640
申请日：2017-01-03
发明人： Gang Wang , Xin Tian , Zhihui Shu , Wenhao Xiong , Tien M. Nguyen , Khanh D. Pham , Erik Blasch , Dan Shen , Zhonghai Wang , Genshe Chen
IPC分类号： H04B7/185 , H04K3/00 , H04B17/391 , H04B1/715 , H04B1/00 , H04B17/345 , H04L27/00 , H04B7/19
摘要： A systematic interferences mitigation design for protected satellite communications (SATCOM) is provided. An advanced channel coding is designed to provide coding gain for SATCOM even in the presence of synchronization errors because of unintentional and intentional radio frequency interferences (RFIs). A unified SATCOM system spectrum efficiency and energy efficiency performance model is developed with a unified interference model for SATCOM dynamic resource allocation (DRA). The SATCOM system DRA is designed with a game theoretic engine and link optimizations providing traffic control, power control, frequency hopping pattern selection, beamforming codebook selection, and modulation with coding agile waveform adaptations. The interferences mitigation design is implemented with software defined radio USRP and GNU-radio to maintain communication link quality of services (QoS).
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公开(公告)号：US10090910B2
公开(公告)日：2018-10-02
申请号：US15377892
申请日：2016-12-13
发明人： Zijian Mo , Zhonghai Wang , Gang Wang , Genshe Chen , Tien Nguyen , Khanh Pham
摘要： In accordance with various embodiments, a method for uplink multiple accessing based on code division multiple access (CDMA) technology and a related system are provided. The method comprises: designing a practical uplink spreading waveform for a code division multiple access (CDMA) based SCN by leveraging a plurality of pseudorandom sequences and investigating a channel coding block and a modulation block for the CDMA based SCN; determining an uplink frequency sub-band division for the CDMA based SCN to optimize a tradeoff between a performance and an implementation cost of CDMA based SCN; and specifying a configuration of a control system of the CDMA based SCN.
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