Electronics and Telecommunications Research Institute

Soo Jeon Lee

Jae Hoon Kim

Byoung Sun Lee

Won Chan Jung

Do Seob Ahn

Yoo La Hwang

Jeong Gi Yang

The present disclosure provides a communication device which is suitable for use in an unmanned aerial vehicle operating in an unmanned aerial vehicle collaboration system including multiple unmanned aerial vehicles and enables both a data communication with another unmanned aerial vehicle and a measurement of a distance to another unmanned aerial vehicle. According to an aspect of an exemplary embodiment, a communication device of an unmanned aerial vehicle includes: an ultra-wideband (UWB) communication circuit configured to perform a UWB communication with other unmanned aerial vehicle; and a UWB communication manager configured to send transmit data to the other unmanned aerial vehicle and receive data sent by the other unmanned aerial vehicle through the UWB communication circuit, and transmit or receive shared data to be shared by unmanned aerial vehicles in a form of being appended to a distance measurement frame.

Communication device and method, and unmanned aerial vehicle employing the same

A method of randomizing a size of a packet is provided. A randomization method may include recognizing a maximum segment size (MSS) defined for transmission and reception of a packet with a reception terminal, and randomizing a size of the packet to be less than the MSS.

Randomization of packet size

Provided is a task processing apparatus and method that may select a task corresponding to predetermined task selection information when a task execution is completed and thus, an idle server occurs in at least one server, may separate the selected task into a first task and a second task, and may control the first task and the second task to be allocated to an existing allocation server of the selected task and an idle server, respectively.

Apparatus and method for processing task

A flight dynamics subsystem (FDS), a velocity increment calculation module, and operational methods of the same are provided. A used fuel quantity actually used in a satellite is calculated, and a velocity increment is calculated using the calculated fuel quantity. Therefore, an orbit of the satellite may be estimated more accurately.

Growing community of inventors

Daejeon, South Korea

Soo Jeon Lee