Repeating fast radio burst shows diverse activity and hints at magnetar origin

Indian astronomers have performed multi-frequency observations of a repeating fast radio burst designated FRB 20201124A.
IEEE

Frequency Estimation of Vital Sign Signals Using FMCW Radar: A Cramer–Rao Lower Bound Analysis and Experimental Validation

Abstract: In the next-generation communication technologies, the rise of sensing functionality has created new opportunities, with frequency-modulated continuous-wave (FMCW) radar promising to be a ...
NPR

Teachers are using software to see if students used AI. What happens when it's wrong?

Ailsa Ostovitz has been accused of using AI on three assignments in two different classes this school year. "It's mentally exhausting because it's like I know this is my work," says Ostovitz, 17. "I ...
IEEE

Degree-of-Polarization-Based Radio Frequency Interference Detection for Synthetic Aperture Radar

Abstract: In microwave remote sensing, radio frequency interference (RFI) caused by other microwave systems has been a critical issue. RFI degrades the quality of synthetic aperture radar (SAR) images ...