Electronics and Telecommunications Research Institute

Cheol-Hyo Lee

Jae-Young Kim

Young-Jun Hong

Sung-Yoon Jung

Dan-Keun Sung

Mi-Kyung Oh

Hyung-Soo Lee

Eun-Chang Choi

Bang-Chul Jung

Chong-Hyun Lee

Ki-Ho Kil

Chang-Yong Jung

Jo-Woon Chong

Min-Jeong Kim

Dong-Jo Park

An apparatus for measuring a range based on a chaotic ultra wideband (UWB) wireless communication technology is disclosed. The Apparatus includes a chaotic signal generating/modulating unit, a transceiving unit, a detecting unit, a transform unit, a comparison unit, and a range measurement unit. The transform unit converts the analog voltage signal from the detecting unit into digital signals based on a first sampling period. The comparison unit compares the analog voltage signal from the detecting unit with a predetermined threshold value and to output a comparison signal. The range measurement unit is configured to calculate a time point corresponding to a leading edge, which is a moment when initial data of a packet payload arrive, by using the digital signals based on the threshold value and by using the comparison signal, and to perform a range measurement calculation based on the time point corresponding to the leading edge.

Range measurement apparatus and method using chaotic UWB wireless communication

Provided is a radio communication system for ultra wideband (UWB) impulse communications and a radio communication apparatus and method thereof. The present patent provides a radio communication system that can minimize power consumption by eliminating a need for carrier detection and sharing transmission/reception time information in UWB impulse communications. The system includes a network coordinator; and one or more devices communicating on a superframe basis in subordination to the network coordinator. The devices perform data transmission/reception in predetermined time slots and then they are inactivated to thereby reduce power consumption.

Radio communication system, radio communication apparatus and radio communication method for UWB impulse communication

Provided is a high resolution distance ranging apparatus using an ultra-wideband (UWB) communication. The apparatus includes: a first spectrum analyzer for extracting a frequency component corresponding to multipath time delay from a reception signal; a second spectrum analyzer for acquiring a noise subspace of the extracted frequency component and extracting a frequency component where maximum power is located from a frequency spectrum based on the noise subspace; a time of arrival (TOA) extractor for extracting TOA based on the frequency component where maximum power is located.

High resolution ranging apparatus and method using UWB

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Daejeon, South Korea

Cheol-Hyo Lee