The ARRL said that while digital technologies like FT8, RTTY and PSK31 have become integral to the Amateur Radio Service, entry-level Technician class license privileges have not been updated ...

Abstract: Conventional directional modulation (DM) transmitters often employ phased array principles, leading to complex hardware and high power consumption. This letter presents a new method that ...

Abstract: The emerging orthogonal time frequency space (OTFS) modulation technique has shown its superiority to the current orthogonal frequency division multiplexing (OFDM) scheme, in terms of its ...

Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of ...

The outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which caused the Coronavirus disease 2019 (COVID-19) pandemic, has posed significant healthcare challenges. In addition to ...

State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Advanced Gas Sensors, Jilin Province, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, ...