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公开(公告)号：US20230232350A1
公开(公告)日：2023-07-20
申请号：US17579348
申请日：2022-01-19
Applicant: Intelligent Fusion Technology, Inc.
Inventor： Dan SHEN , Genshe CHEN , Khanh PHAM , Erik BLASCH
CPC classification number: H04W56/0015 , B64C39/024 , H04B7/026
Abstract: A system includes at least one slave node and one master node that are for a method of time synchronization between the at least one slave node and the master node. The method includes: sending, by one slave node, a first message to the master node to launch a time synchronization between the slave node and the master node; upon receiving the first message, adding, by the master node, a receiving time on a master clock to the first message to form a second message; sending, by the master node, the second message back to the slave node; adding, by the slave node, a receiving time on the slave clock to the second message to form an updated message; and performing, by the slave node, a time adjustment to the slave clock based on the updated message, thereby synchronizing time between the slave node and the master node.
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2.发明申请公开(公告)号：US20220014347A1
公开(公告)日：2022-01-13
申请号：US16924853
申请日：2020-07-09
Applicant: INTELLIGENT FUSION TECHNOLOGY, INC.
Inventor： Xin TIAN , Genshe CHEN , Khanh PHAM , Erik BLASCH
IPC: H04L5/14 , H04L25/02 , H04L25/03 , H04B17/391 , H04B17/373
Abstract: A method for emulating a communication system with fast changing link condition, applied to a testbed system including an interference emulator, a transmitter, and a receiver, includes: by the transmitter, generating code-word symbols, in an initial symbol sequence, according to information bits; evaluating an interference condition and a time duration for each code-word symbol; reordering the code-word symbols to a reordered symbol sequence based on interference conditions; evaluating a total time duration of code-word symbols under each interference condition; and transmitting the code-word symbols in the reordered symbol sequence. The method also includes: by the interference emulator, obtaining the total time duration of code-word symbols under each interference condition from the transmitter; and providing an emulated interference environment by ordering the time durations of different interference conditions. The start time for transmitting code-word symbols with an interference condition is synchronized with the start time for emulating the interference condition.
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公开(公告)号：US20210134046A1
公开(公告)日：2021-05-06
申请号：US16674929
申请日：2019-11-05
Applicant: INTELLIGENT FUSION TECHNOLOGY, INC.
Inventor： Jingyang LU , Yiran XU , Dan SHEN , Nichole SULLIVAN , Genshe CHEN , Khanh PHAM , Erik BLASCH
Abstract: The present disclosure provides a method for wave propagation prediction based on a 3D ray tracing engine and machine-learning based dominant ray selection. The method includes receiving, integrating, and processing input data. Integrating and processing the input data includes dividing a cone of the original millimeter wave (mmWave) into a plurality of sub cones; determining a contribution weight of rays coming from each sub cone to the received signal strength (RSS) at a receiving end of interest; and determining rays coming from one or more sub cones that have a total contribution weight to the RSS larger than a preset threshold value as dominant rays using a neural network obtained through a machine learning approach. The method further includes performing ray tracing based on the input data and the dominant rays to predict wave propagation.
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公开(公告)号：US20190219706A1
公开(公告)日：2019-07-18
申请号：US15874526
申请日：2018-01-18
Applicant: Intelligent Fusion Technology, Inc
Inventor： Zhonghai WANG , Bin JIA , Xingping LIN , Tao WANG , Xingyu XIANG , Genshe CHEN , Dan SHEN , Khanh PHAM , Erik BLASCH
IPC: G01S19/23
Abstract: 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：US20240256734A1
公开(公告)日：2024-08-01
申请号：US18160717
申请日：2023-01-27
Applicant: Intelligent Fusion Technology, Inc.
Inventor： Dan SHEN , Genshe CHEN , Khanh PHAM , Erik BLASCH
IPC: G06F30/20
CPC classification number: G06F30/20 , G06F2111/10
Abstract: The present disclosure provides a method for decentralized optimal control for passive SSG of ground-based EMI sources. The method includes simulating a scenario based on an EMI source and a satellite specified by a TLE file; and calculating positions, velocities and accelerations of the satellite at different time indexes of the simulated scenario; calculating Doppler shifts and Doppler rates according to the positions, the velocities and the accelerations of the satellite at the different time indexes; and implementing a constrained unscented Kalman filter (cUKF) based on the Doppler shifts and the Doppler rates to obtain an updated state; and calculating a recursive constrained posterior Cramér-Rao bound (rcPCRB); and fine tuning the cUKF using the calculated rcPCRB to obtain an updated cUKF.
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Patent Agency Ranking
公开(公告)号：US20210377763A1
公开(公告)日：2021-12-02
申请号：US17332534
申请日：2021-05-27
Applicant: INTELLIGENT FUSION TECHNOLOGY, INC.
Inventor： Xin TIAN , Yi LI , Genshe CHEN , Khanh PHAM , Erik BLASCH
Abstract: Various embodiments of the present disclosure provide a method, a device, and a storage medium for performance prediction of a communication waveform in a communication system. The method includes measuring, by a receiver, an actual SNR distribution of a communication link between a transmitter and the receiver; further includes evaluating, by a waveform performance prediction device, a normalized minimum SNR shift required for the communication waveform to operate, where the normalized minimum SNR shift is obtained based on a normalized SNR distribution using a neural network (NN), the normalized SNR distribution corresponding to the actual SNR distribution; and further includes, according to the normalized minimum SNR shift, obtaining, by a waveform performance prediction device, an actual minimum SNR shift for the actual SNR distribution, where according to the actual minimum SNR shift, the communication system is adjusted for operation.
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公开(公告)号：US20210175962A1
公开(公告)日：2021-06-10
申请号：US16707927
申请日：2019-12-09
Applicant: INTELLIGENT FUSION TECHNOLOGY, INC.
Inventor： Lun LI , Jingyang LU , John NGUYEN , Dan SHEN , Khanh PHAM , Genshe CHEN
Abstract: The present disclosure provides a high power amplifier (HPA) linearization method, applied to a ground hub which includes a predistorter and a PD controller. The ground hub is arranged in a satellite communication system together with a transmitter and a satellite transponder, and the satellite transponder includes an HPA. The HPA linearization method includes determining an initial correction signal based on a physical model with a plurality of PD parameters to compensate AM-AM and AM-PM characteristics of the HPA; receiving a signal from the satellite transponder; determining a reward function for an action taken by the PD controller; examining an action-value function for actions taken in a preset past period; taking an action to adjust the plurality of PD parameters for the PD to generate an updated correction signal; sending the update correction signal to the transmitter to compensate the AM-AM and AM-PM characteristics of the HPA.
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公开(公告)号：US20180278425A1
公开(公告)日：2018-09-27
申请号：US15469667
申请日：2017-03-27
Applicant: Intelligent Fusion Technology, Inc
Inventor： Yiran XU , Gang WANG , Sixiao WEI , Genshe CHEN , Khanh PHAM , Erik BLASCH
Abstract: Methods and systems for cyber secure data communications are provided. In some embodiments, a method for transmitting data comprises: performing a marker-based data encoding process to embed a digital watermark into each of a plurality of original data flows to be transmitted to a plurality of receivers; performing a non-orthogonal multiple access process to allocate transmission powers to the plurality of original data flows, such that the plurality of original data flows are simultaneously superposed on a carrier frequency to generate a superposed signal; performing a noise modulation process to modulate the superposed signal to generate a noise-like signal and a reference noise signal; transmitting the noise-like signal and the reference noise signal through orthogonally polarized antennas; and performing a portal-based data integrity analysis process to check whether a receiver in the plurality of receivers is compromised or manipulated.
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公开(公告)号：US20180167134A1
公开(公告)日：2018-06-14
申请号：US15377892
申请日：2016-12-13
Applicant: Intelligent Fusion Technology, Inc
Inventor： Zijian MO , Zhonghai WANG , Gang WANG , Genshe CHEN , Tien NGUYEN , Khanh PHAM
CPC classification number: H04B7/18513 , H04B7/216
Abstract: 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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公开(公告)号：US20240403117A1
公开(公告)日：2024-12-05
申请号：US18806392
申请日：2024-08-15
Applicant: Intelligent Fusion Technology, Inc.
Inventor： Qi ZHAO , Genshe CHEN , Khanh PHAM , Erik BLASCH
Abstract: The present disclosure provides a machine-learning-based real-time task scheduling method. The method includes, for a worker node, executing a training task distributed by a master node; collecting latency time lengths of each machine learning model under different CPU utilization and memory usage; calculating a mean squared error of the latency time lengths of each machine learning model; comparing machine learning models according to mean squared errors of latency time lengths to select a desirable machine learning model installing on the worker node; providing an API for the worker node; when receiving a task by the master node, requesting the worker node to predict a latency time length; and returning the predicted latency time length to the master node; and after the master node collects predicted latency time lengths of worker nodes, assigning the task to a corresponding worker node with a lowest predicted latency time length.
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