Jun-ho Jeong, an integrated master's/Ph.D. student in POSTECH's Department of Electrical Engineering advised by Professor Kyung-tae Kim, received an Outstanding Paper Award at the KIEES 2024 Summer Conference for “A Study on Digit Recognition in Air-Writing Using Single CW Radar System.”

The paper proposed recognizing inputs by tracking hand movements in space with a single continuous-wave radar. For handwritten digits in the air, a noise-robust indoor filter tracked Doppler and azimuth components, and a CNN recognized the digits.

The work was highly regarded for preprocessing signals so that the model could be trained on existing handwriting datasets without radar-acquired training data. It also substantially reduced system cost by using a single-frequency CW radar instead of a high-bandwidth FMCW radar.