Korea Institute of Science and Technology

Yongsang Ryu

Taikjin Lee

Young Min Jhon

Chulki Kim

Minah Seo

Jaehun Kim

Byunghyuck Moon

Seok Pil Lee

Beomju Shin

Hyunseok Song

Young In John

Hui Dong Yang

The present invention relates to integrated localization method and apparatus of high accuracy, and estimates a relative position of a moving node, based on motion sensing of the moving node, estimates an absolute position of the moving node, based on a change pattern of at least one signal strength received from at least one fixed node over a plurality of time points, calculates accuracy of the absolute position of the moving node that changes along a movement route of the moving node, and determines a current position of the moving node from at least one of the relative position and the absolute position estimated as such in accordance with the accuracy of the absolute position of the moving node. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment or various route changes but also has almost no change in signal strength over a wide region.

Integrated localization method and apparatus of high accuracy robust to route change

A system for adjusting transmittance, according to the present disclosure, includes a sensing device configured to amplify electromagnetic waves of a specific frequency and a squeegee configured to concentrate a target material inside a slot formed in the sensing device. A transmittance of the sensing device is adjusted according to concentration of the target material concentrated inside the slot by the squeegee.

System and method for adjusting transmittance for supersensitive optical sensor

The present disclosure discloses a double trigger type single pulse laser apparatus configured to suppress additional pulses to increase single pulse energy and improve stability of output as compared to a conventional single trigger type single pulse laser apparatus. According to the present invention, there is provided a single pulse laser apparatus including a resonator which has a first mirror, a second mirror, a gain medium, an electro-optic modulator and an acousto-optic modulator configured to respectively perform Q-switching and mode-locking, the single pulse laser apparatus including a first photodiode configured to measure a laser beam oscillated by the resonator.

Single pulse laser apparatus using double trigger

Disclosed herein is a single pulse laser apparatus which includes a first mirror and a second mirror disposed at both ends of the single pulse laser apparatus and having reflectivities of a predetermined level or more; a gain medium rotated at a predetermined angle and configured to oscillate a laser beam in a manual mode-locking state; a linear polarizer configured to output a beam having a specific polarized component of the oscillated laser beam; an etalon configured to adjust a pulse width of the oscillated laser beam; and an electro-optic modulator configured to perform Q-switching and single pulse switching.

Single pulse laser apparatus

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Seoul, South Korea

Yongsang Ryu