Results 31 to 40 of about 5,425,503 (237)

Index Modulation for Frequency Diverse Array [PDF]

open access: yes, 2019
The Index Modulation (IM) approach adds an extra signal modulation dimension by utilizing sub-carrier index domain, that is in addition to the traditional IQ domain.
Ding, Yuan   +5 more
core   +1 more source

Time‐variant focusing range‐angle dependent beampattern synthesis by uniform circular frequency diverse array radar

open access: yesIET Radar, Sonar & Navigation, 2021
The beam steering of phased array (PA) radar is fixed in one direction for all the ranges, thus the resulting beampattern is angle‐dependent but range‐independent.
Zeeshan Ahmad, Zhiguo Shi, Chengwei Zhou
doaj   +1 more source

Beampattern analysis of frequency diverse array radar: a review

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
Electronic beam steering is an essential feature of state-of-the-art radar systems. Conventional phased array (PA) radars with fixed carrier frequencies are well-known for electronically steering their beam with high directivity.
Zeeshan Ahmad, Meng Chen, Shu-Di Bao
doaj   +1 more source

Optimal Carrier Frequency Design for Frequency Diverse Array Mimo Radar

open access: yes, 2023
In this work, we introduce a novel approach for designing the transmit frequency offset scheme based on Cramér-Rao lower bound (CRLB) minimization for a frequency diverse array multiple-input multiple-output (FDA-MIMO) radar.
Cheng, Jie   +3 more
core   +1 more source

Recent Advances in Frequency Diverse Array Radar Techniques

open access: yesLeida xuebao, 2022
Due to the range dependence and time-varying array factor of Frequency Diverse Array (FDA) radar, it can overcome the miss of range variable in traditional phased-array factor and gain loss of Multiple-Input Multiple-Output (MIMO) radar array.
Wenqin WANG, Shunsheng ZHANG
doaj   +1 more source

On RF localisation deception capability of FDA signal under interferometry reconnaissance

open access: yesThe Journal of Engineering, 2019
Phased-array antennas are known for their capability to electronically steer a beam with high effectiveness, but beam steering is fixed in an angle for all range cells.
Xihui Zhang   +3 more
doaj   +1 more source

Research on beam control of density taper array sin-FDA based on subarray structure [PDF]

open access: yesZhihui kongzhi yu fangzhen
Frequency Diverse Array (FDA) is a brand-new electronically scanned radar system. The time-range-angle three-dimensional correlation characteristics of its beampattern have broad application prospects in the fields of electronic countermeasures and ...
ZHANG Jing, CHEN Chushu, WANG Bo
doaj   +1 more source

Frequency Diverse Array Antennas: From Their Origin to Their Application in Wireless Communication Systems

open access: yesJournal of Computer Networks and Communications, 2018
Wireless communication systems have gained considerable growth rate nowadays, with the anticipation that communications will be available everywhere and anywhere in the near future.
Shaddrack Yaw Nusenu, Abdul Basit
doaj   +1 more source

An investigation of a frequency diverse array [PDF]

open access: yes, 2009
This thesis presents a novel concept for focusing an antenna beam pattern as a function of range, time, and angle. In conventional phased arrays, beam steering is achieved by applying a linear phase progression across the aperture.
Antonik, P.
core  

Home - About - Disclaimer - Privacy