公开(公告)号：US20200373972A1

公开(公告)日：2020-11-26

申请号：US16991583

申请日：2020-08-12

Applicant: INTELLIGENT FUSION TECHNOLOGY, INC.

Inventor： Zhonghai WANG ,  Lun LI ,  Jingyang LU ,  Genshe CHEN ,  Weifeng SU ,  Xingping LIN ,  Xingyu XIANG ,  Wenhao XIONG

IPC: H04B7/0413 ,  H04B17/336 ,  H04B17/391

Abstract: 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.

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.

公开(公告)号：US20220029594A1

公开(公告)日：2022-01-27

申请号：US17382838

申请日：2021-07-22

Applicant: Intelligent Fusion Technology, Inc.

Inventor： Xingyu XIANG ,  Dan SHEN ,  Genshe CHEN ,  Khanh PHAM

IPC: H03G3/30

Abstract: Embodiments of the present disclosure provide a method, a device, and a storage medium for hybrid automatic gain control in a communication system. The method includes amplifying an input signal to generate an amplified signal which is converted into a plurality of output signals; obtaining a moving average amplitude of a plurality of output signals of a current input signal; and calculating a signal amplitude difference according to the moving average amplitude and a desired output signal amplitude level; calculating a signal amplitude ratio according to a plurality of output signals of two previous output signal blocks and AGC gains corresponding to the plurality of output signals of the two previous output signal blocks; obtaining a step size according to the signal amplitude difference and the signal amplitude ratio; and calculating an AGC gain of the current input signal according to the step size and a corresponding previous AGC gain.