Electronics and Telecommunications Research Institute

Eungki Park

Woonyon Kim

Do Hoon Lee

Jeong-Han Yun

Jungtaek Seo

Kyoung-Ho Kim

Heemin Kim

Dae Heon Lee

Hae Yong Yang

Tae Ghyoon Kim

Young Han Choi

Woong Hee Kim

Jinchun Wang

Dong Hoon Shin

Hyoung Chun Kim

Daesik Choi

Dongsu Kim

Cheolwon Lee

An anti-jamming apparatus and method for a compact array antenna are provided. The anti-jamming apparatus for a compact array antenna includes a Global Navigation Satellite System (GNSS) array antenna unit including a plurality of GNSS antennas for receiving GNSS signals transmitted from a satellite. A first beam-forming unit includes a plurality of combination units for receiving respective signals received by the plurality of GNSS antennas as a first reference signal and first auxiliary signals and combining the first reference signal with the first auxiliary signals, thus forming different beams. A second beam-forming unit receives signals of the different beams, and combining the signals of the different beams, thus forming an anti-jamming beam in which an invisible area is minimized.

Anti-jamming apparatus and method for compact array antenna

The present invention presents a network apparatus and a selective information monitoring method using the network apparatus, which allow a user to monitor only required information (the field information of packets) from all received packets. The network apparatus one or more physical interfaces connected to a monitoring target host and configured to receive network packets from the monitoring target host, and a switch fabric module including a configurable monitoring module configured to perform filtering so that selective information is extracted from the network packets collected through the one or more physical interfaces.

Network apparatus and selective information monitoring method using the same

A system and method for managing a network by value-based estimation is provided. A network device requesting communication is defined as an active point and a network device receiving a request for communication is defined as a passive point. A value of a network device is determined according to the number of active points connected to the corresponding network device, and a value of a network device that is in a path of communication between network devices is determined based on a value of a network device passing through the corresponding network device. When a policy for changing a network environment is transferred in a state where the values of the network devices have been estimated, a policy conflict test is performed on the basis of the estimated values of the network devices, thereby determining application of the policy in due consideration of the values and significance of the network devices.

System and method for managing network by value-based estimation

Provided are N grouping of traffic and pattern-free Internet worm response system and method. According to the method, traffic factors generated by respective worms are grouped into N groups so that a great quantity of Information may be effectively understood and a worm generated afterward is involved with characteristics of a relevant group. Damages of a network or a system predictable through already classified N traffic characteristics are defined so that corresponding step-by-step measures are taken. Characteristics of the grouped worms are quantitatively analyzed so that a danger degree of a new worm is predicted when the new worm appears afterward and forecasting and alarming through the prediction are performed. Easiness with which a controlling operator instantly understands an accident using a visualization method having an approximate real-time characteristic is increased, so that detection efficiency for most worms not detected using a conventional rule is increased.

N grouping of traffic and pattern-free internet worm response system and method using N grouping of traffic

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Daejeon, South Korea

Eungki Park