Songcheol Hong
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View article: Sub-Nyquist Sampling OFDM Radar With a Time-Frequency Phase-Coded Waveform
Sub-Nyquist Sampling OFDM Radar With a Time-Frequency Phase-Coded Waveform Open
This paper presents a time-frequency phase-coded sub-Nyquist sampling orthogonal frequency division multiplexing (PC-SNS-OFDM) radar system to reduce the analog-to-digital converter (ADC) sampling rate without any additional hardware or si…
View article: A Self-Body-Biasing Network of Vector Sum Phase Shifter for Reduction of Output Capacitance Variation and Supply Current Variation
A Self-Body-Biasing Network of Vector Sum Phase Shifter for Reduction of Output Capacitance Variation and Supply Current Variation Open
This paper presents the self-body-biasing effects of a vector-sum phase shifter(VSPS) in 0.13-m CMOS technology. The self-body-biasing network is simply implemented by connecting the drain and body terminals of a vector-sum MOSFET amplifie…
View article: Sub-Nyquist Sampling OFDM Radar
Sub-Nyquist Sampling OFDM Radar Open
In this paper, we propose a sub-Nyquist sampling (SNS) orthogonal frequency-division multiplexing (OFDM) radar system capable of reducing the analog-to-digital converter (ADC) sampling rate in OFDM radar without any additional manipulation…
View article: ORORA: Outlier-Robust Radar Odometry
ORORA: Outlier-Robust Radar Odometry Open
Radar sensors are emerging as solutions for perceiving surroundings and estimating ego-motion in extreme weather conditions. Unfortunately, radar measurements are noisy and suffer from mutual interference, which degrades the performance of…
View article: Design of Multi-Line Thru-Reflect-Line Calibration Standards and Extraction Method of Characteristic Impedance for Complementary Metal-Oxide-Semiconductor Transistor Characterization Up to 110 GHz
Design of Multi-Line Thru-Reflect-Line Calibration Standards and Extraction Method of Characteristic Impedance for Complementary Metal-Oxide-Semiconductor Transistor Characterization Up to 110 GHz Open
In this study, we propose a method for improving the accuracy of the characteristic impedance extraction method of line standards when using multiline thru-reflect-line(mTRL) calibration on chips based on the propagation constant method. T…
View article: Delta-sigma-modulated IFoF transmission system assisted by a correlative-level encoding technique
Delta-sigma-modulated IFoF transmission system assisted by a correlative-level encoding technique Open
A delta-sigma-modulated intermediate-frequency-over-fiber (IFoF) transmission system assisted by a correlative-level coding technique is proposed and experimentally demonstrated. Unlike conventional delta-sigma IFoF systems with multiple o…