The traditional neural network-based angle-direction estimation methods are mainly for non-coherent signals, and it is difficult to effectively achieve the accurate estimation of direction of arrival ...

Tropospheric scintillation on Earth-space paths greatly increases at low elevation angles and/or higher carrier frequencies, may impair low margin systems, and can interfere with the power control ...

High altitude illness (HAI) is a term used to describe a group of cerebral and pulmonary syndromes that can occur during travel to elevations above 2500 metres ( ~ 8200 feet ). Acute hypoxia, acute ...

To assess the clinical effectiveness and adverse events of miscellaneous and non-pharmacological interventions for preventing acute HAI in people who are at risk of developing high altitude illness in ...