Results 11 to 20 of about 229,198 (350)

Holographic Back-Projection Method for Calibration of Fully Digital Polarimetric Phased Array Radar

open access: yesIEEE Transactions on Radar Systems, 2023
Phased Array Radar (PAR) technology is rapidly rising as a candidate for future weather radars because it can provide focused, high-quality meteorological observations.
D. Schvartzman   +5 more
semanticscholar   +1 more source

Spatial information in phased‐array radar [PDF]

open access: yesIET Communications, 2020
In this study, the application of information theory to describe radar measurement problems is investigated. In Shannon's information theory, mutual information is used to quantify the reduction in the a priori uncertainty of the transmitted message.
Dazhuan Xu   +3 more
openaire   +1 more source

A Primer on Phased Array Radar Technology for the Atmospheric Sciences

open access: yesBulletin of The American Meteorological Society - (BAMS), 2022
The scientific community has expressed interest in the potential of phased array radars (PARs) to observe the atmosphere with finer spatial and temporal scales.
R. Palmer   +20 more
semanticscholar   +1 more source

GESTRA - upgrading to future distributed phased array radar networks for space surveillance [PDF]

open access: yes, 2023
2734More and more objects are orbiting the Earth. Especially mega-constellations lead to a big number of artificial objects in space, both active and debris. This increasing amount of space debris is becoming more and more dangerous for human spaceflight.
Reising, Christoph   +4 more
core   +1 more source

GESTRA - a phased-array based surveillance and tracking radar for space situational awareness [PDF]

open access: yes, 2022
S.483-487Space debris is an ongoing and growing problem for space-based infrastructure. The rising population of man-made debris particles has the potential to destroy operational satellites and spacecrafts. In order to avoid the risk of collisions it is
Ben Bekhti, N.   +5 more
core   +1 more source

Design of a Cylindrical Crossed Dipole Phased Array Antenna for Weather Surveillance Radars

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
We present a cylindrical dual-polarization phased array antenna for weather surveillance radars that features high isolation, matched copolar beams, low sidelobe levels, and adaptive null steering.
Mohammad-Hossein Golbon-Haghighi   +3 more
doaj   +1 more source

Multiprobe Radiation Simulation Method for Phased Array Radar Performance Evaluation

open access: yesIEEE Access, 2022
The phased array radar exhibits improved tracking accuracy and anti-jamming performance with multi-beam tracking, beam agility, and adaptive beam-forming capabilities.
Ruoxi Xu   +4 more
doaj   +1 more source

X‐band 8 × 8 phased‐array 4‐channel FMCW receiver in 65 nm CMOS technology

open access: yesElectronics Letters, 2022
Optimized two radar RFICs for an X‐band 8 × 8 phased‐array 4‐channel frequency‐modulated continuous‐wave receiver is proposed using 65‐nm CMOS technology and the beam steering operation of the receiver module is demonstrated.
Seon‐Ho Han   +2 more
doaj   +1 more source

DDMA-MIMO Observations With the MU Radar: Validation by Measuring a Beam Broadening Effect

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The phased-array radar, basically developed with the defense systems, has mainly utilized for the atmospheric radar and the wind profiling radar in the field of meteorological remote sensing, and recently it has also applied to the weather radar for ...
Tomoya Matsuda, Hiroyuki Hashiguchi
doaj   +1 more source

The Measurement of Echo Direction in a Phased-Array Radar [PDF]

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 1978
For a planar-array antenna with a monopulse feed horn, this study describes a simple algorithm for the determination of the direction of target echoes. Antenna pattern measurements of the array indicate that the direction sines of a received wavefront can be independently obtained with one simple relation between a normalized difference channel output ...
Rijsdijk, F.B., Spek, G.A. van der
openaire   +1 more source

Home - About - Disclaimer - Privacy