Abstract: Estimation of direction-of-arrival (DOA) is a fundamental problem in array signal processing. The uniform circular array (UCA) is a highly useful array geometry for DOA estimation, ...

Abstract: An S dual-band circular polarization phased array antenna is proposed in this paper. The antenna implements a laminated structure of a double-layer radiation patch to obtain dual frequencies ...

“Evaluate whether using Java 21 virtual threads for one record × sink execution model is appropriate for I/O-bound sinks, and highlight any hidden pitfalls.” “Given a fan-out system where partial sink ...

The 714,566 hectare site comprises two distinct parts: the dormant volcanic Pinacate Shield of black and red lava flows and desert pavements to the east, and, in the west, the Gran Altar Desert with ...