Low Earth orbit (LEO) satellite system has revolutionized the way to provide wireless seamless access on a global scale. One of the primary limitations is the low data rates resulting from Doppler ...

Millimeter wave communications show great potentials in many applications, one of which is the high-speed railway(HSR) communication system. However, a major challenge is the Doppler effect caused by ...

This article presents a novel microwave (MW)/millimeter-wave (MMW) dual-band shared-aperture antenna. The antenna operates as a patch antenna in the MW band (2.4 GHz) and as a transmitarray (TA) in ...

Beyond 5G mobile networks are required to support the ultra-reliable data transmission with massive connectivity under high-mobility scenarios, where the delay-Doppler domain multiple access (DDMA) ...

The concept of a coherent interferometric dual frequency laser radar, that measures both the target range and velocity, is presented and experimentally demonstrated. The innovative architecture ...

Radar-based near-field 3-D imaging technology has recently attracted increasing attention in the field of security systems. This article presents a novel multiple-input–multiple-output (MIMO) ...

Reconfigurable intelligent surfaces (RISs) have been regarded as one of the critical technologies for 6G wireless communications. Single-band RISs have received lots of attention in academia and ...

In this work, we propose that Kalman filtering (KF) may provide superior performance to estimate Doppler centroid frequencies of Synthetic Aperture Radars (SAR) systems. By measuring absolute Doppler ...

An amplitude weighted cross-correlation detector is proposed for the detection of the Doppler-spread target (DST), based on the frequency modulated continuous waveform (FMCW) radar. The concurrent ...

JERUSALEM (AP) — The Gaza Humanitarian Foundation, an Israeli-backed American organization running a new aid program in Gaza, on Thursday denied a report by The Associated Press that American ...

Next-generation wireless networks are expected to provide the capability of robust environmental sensing in addition to reliable communications to meet intelligence requirements. A promising solution ...