Results 21 to 30 of about 26,224 (303)
Imaging ionospheric inhomogeneities using spaceborne synthetic aperture radar [PDF]
, 2011 We present a technique and results of 2-D imaging of Faraday rotation and total electron content using spaceborne L band polarimetric synthetic aperture radar (PolSAR).
Chapman, B. +4 more
core +2 more sources
Extraction method of wide-band phased array radar signals based on pulse amplitude characteristic
The Journal of Engineering, 2019 Wide-band phased array radar is the primary focus in electronic countermeasure reconnaissance, and prior extraction of such radar signals in the interleaved pulse data intercepted by the receiver has important military significance.
Meng Xianghao, An Yongwang, Li Pengyong
doaj +1 more source
Methods for determining the phase difference of the output signals for the receiving elements of a phased antenna array in a radiophoton circuit with parallel and series pairwise connection of electro-optical modulators [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 Obtaining accurate phase values of the output signals for the receiving elements of a phased array antenna is one of the crucial issues relating to radio-photon technologies in radar and radio communication.
Yaroslav N. Gusenitsa +3 more
doaj +1 more source
The Journal of Engineering, 2019 Conventional space-time adaptive processing (STAP) achieves clutter suppression by combining spatial signals and the temporal pulses. However, extreme slow-moving target cannot be effectively detected by space-time joint filtering in ambiguous and non ...
Yuze Sun, Jian Yang, Xiaopeng Yang
doaj +1 more source
Fully integrated millimeter-wave CMOS phased arrays [PDF]
, 2006 A decade ago, RF CMOS, even at low gigahertz frequencies, was considered an oxymoron by all but the most ambitious and optimistic. Today, it is a dominating force in most commercial wireless applications (e.g., cellular, WLAN, GPS, BlueTooth, etc.) and ...
Hajimiri, Ali
core +1 more source
Penggunaan Metode Finite Difference TIME Domain (Fdtd) Dalam Simulasi Phased Array Antenna [PDF]
, 2017 Finite Diffrence Time Domain merupakan metode simulasi yang digunakan dalam simulasi gelombang elektromagnetik dimana mengunakan prinsip dasar pendekatan numerik dari persamaan differensial dalam domain ruang dan waktu.
Yudistira, H. T. (Hadi)
core +2 more sources
Multi-Beam Radar Communication Integrated System Design
Information, 2023 In this paper, we propose a multi-beam integrated radar and communication scheme using phased-array antenna, in which the same LFM-BPSK integrated waveform is used for both the radar and the communication beams.
Hao Ma, Jun Wang, Xin Sun, Wenxin Jin
doaj +1 more source
A 24-GHz SiGe Phased-Array Receiver—LO Phase-Shifting Approach [PDF]
, 2005 A local-oscillator phase-shifting approach is introduced to implement a fully integrated 24-GHz phased-array receiver using an SiGe technology. Sixteen phases of the local oscillator are generated in one oscillator core, resulting in a raw beam-forming ...
Guan, Xiang +3 more
core +1 more source
Overlapped Phased Array Antenna for Avalanche Radar [PDF]
IEEE Transactions on Antennas and Propagation, 2017 Snow avalanche is a natural phenomenon, which annually causes infrastructure damage and leads to human casualties in many countries all over the world. As a result, a detailed hazard mapping is required to be able to understand the avalanche risk levels. Also, the scarcity of the areas suitable for constructing infrastructures in the mountains places a
Mandana Ardeshir Tanha +4 more
openaire +3 more sources
Frontiers in Earth ScienceIntroductionThis study investigates the precipitation characteristics of tropical cyclones (TCs) making landfall in East China from 1960 to 2010.MethodsStatistical and factor analysis methodologies were employed, leveraging TC precipitation separation ...
Longbin Ye +4 more
doaj +1 more source