Tsinghua University

Lemon Inc.

Beihang University

Jingjing Zhao

Xin Wang

Yanbo Zhu

Guangyao Ni

Chen Sun

Lin Zhou

Kaiquan Cai

Dong Zhao

Yong Han

Zheng You

Chenyu Li

Quan Zhou

Nick Newberg

Yanli Li

Masoud Loghmani

Xingyi Shi

Jian Huang

Richard F Tucker

Seong Kuan Wang

The present disclosure provides a coordinated multiple access method for multi-cell ground-to-air data transmission, and belongs to the technical field of wireless communication. The method comprises the following steps: S, constructing a model of a coordinated multiple access system for multi-cell ground-to-air data transmission; S, calculating a transmission rate of an aircraft, and constructing a multi-cell airspace and power domain resource allocation optimization problem by taking maximizing a system transmission rate as an optimization objective; S, constructing a Markov decision process model; S, solving the optimization problem using a multi-agent deep reinforcement learning algorithm. The system transmission rate is maximized under the condition that the aircraft can decode the signal correctly and satisfy the constraint of minimum transmission rate, thereby realizing ground-to-air high-speed data transmission. The present disclosure adopts the coordinated multiple access method for multi-cell ground-to-air data transmission, which can realize fast online decision, satisfying the requirements of ground-to-air high-speed data transmission in the high dynamic flight scenario of the aircraft.

Coordinated multiple access method for multi-cell ground-to-air data transmission

The present disclosure describes techniques for facilitating interaction with content using interactive effects. The techniques comprise receiving a video from a first computing device associated with a first user among a plurality of users. The video is generated using an interactive effect. The interactive effect comprises overlaying at least one component on at least one subset of frames of the video. The interactive effect enables the video to be interacted with other users among the plurality of users. The video is presented on a second computing device associated with a second user among the plurality of users. The video comprises information indicative of instructions on how to interact with the video. Display of an animation associated with the at least one component may be automatically caused on the second computing device in response to receiving an indication of interacting with the video by the second user.

Content creation using interactive effects

A flow imaging system based on matrix laser scanning are provided. In the system, a beam splitter component modulates continuous laser generated by a laser source, and the continuous laser is focused on a focal plane by an illumination objective to form matrix spots. The matrix spots are irradiated on a single-cell axial flow of a fluid focusing component. When cells in the single-cell axial flow pass through the matrix spots, a fluorescent signal and a scattered light signal generated are received by a light collecting objective, and then sent to a photoelectric detector through a condenser. The photoelectric detector converts the fluorescence and scattered light signals excited into voltage signals, and the collecting card collects and converts the signals into digital signals, and sends the digital signals to a computer to be recovered through the computer, so as to obtain a cell image.

Flow imaging system based on matrix laser scanning

Growing community of inventors

Beijing, China

Jingjing Zhao