Doppler radar

On 7 September 2021, a NOAA WP-3D flew a mission through Hurricane Larry with the Imaging Wind and Rain Airborne Profiler (IWRAP) mounted on the aircraft. Horizontal wind vectors and atmospheric wind speeds were retrieved from the Ku-band radar measurements, and are presented with equivalent reflectivity estimates from IWRAP and other measurements and retrievals from collocated instruments (e.g., flight-level wind sensors and the Stepped Frequency Microwave Radiometer [SFMR]). The radar was configured to sample at two incidence angles: 31 degrees and 51 degrees.

现有的公开数据集往往存在数据量小，训练过程不充分，导致过拟合严重，泛化性能差的问题。针对这一问题，构建了雷达数据集 RadSet。在数据获取阶段，frequency modulated continuous wave (FMCW) radar system IWR1843 Boost manufactured by Texas Instruments (TI) was used. The RadSet dataset is collected by I+ Lab at Shandong University, covering a rectangular area 5 meters long in front of the radar and 4 meters wide, with the radar placed at a height of 120 cm above the ground. The volunteers execute the aforementioned activities at distances ranging between 1 to 5 meters from the radar.

This dataset comprises radar-acquired signals from 15 subjects walking on a treadmill, aimed at exploring methodologies for non-contact vital sign detection under conditions of significant body movement. Each subject participated in four experimental sessions, where radar data were collected using two Continuous Wave (CW) radars positioned to capture signals from the front and back of the subject. The data includes both raw and demodulated signals synchronized with ground-truth data obtained from a BioPac system.