Results 31 to 40 of about 5,461,422 (271)

Frequency diverse array radar [PDF]

open access: yes, 2010
Electronic scanning is the most desirable feature of state-of-the-art radar systems. With electronic scanning, it is possible to steer the main beam of an array antenna instantaneously into a desired direction where no mechanical mechanism is involved in
Aytun, Alper
core   +2 more sources

Deceptive signal generating optimization based on frequency diverse array

open access: yesIET Radar, Sonar & Navigation, 2022
The direction and position of the radar signals are essential information in the radar countermeasure, and with the development of the reconnaissance system, the radar is facing more severe threats.
Jiaang Ge, Junwei Xie, Chushu Chen
doaj   +1 more source

Range-Ambiguous Clutter Suppression via FDA MIMO Planar Array Radar with Compressed Sensing

open access: yesRemote Sensing, 2022
Range-ambiguous clutter is an inevitable issue for airborne forward-looking array radars, especially with the high pulse repetition frequency (PRF). In this paper, a method to suppress the range-ambiguous clutter is proposed in an FDA-MIMO radar with a ...
Yuzhuo Wang   +5 more
doaj   +1 more source

Direction modulation based on non‐linear frequency diverse array

open access: yesElectronics Letters, 2021
A design method of non‐linear frequency diverse array is presented to generate the desired direction modulation for the array. The proposed method firstly sets the desired direction modulation, and then forms the desired transmit beampattern by adjusting
Rujiang Guo   +3 more
doaj   +1 more source

Frequency Diverse Array with Cubic Sinusoidal Frequency Offset

open access: yesJournal of Physics: Conference Series, 2020
Abstract Frequency diversity array radar (FDA) has range-angle dependent beampattern, providing enormous potential for the application of this new type of radar. However, the beampattern of conventional FDA (CFDA) has two problems: range-angle coupling and range periodicity, limiting the application of FDA.
Xinxin Qin, Changli Li
openaire   +1 more source

Frequency Diverse Array Target Localization Based on IPSO-BP

open access: yesInternational Journal of Antennas and Propagation, 2020
For the traditional target localization algorithms of frequency diverse array (FDA), there are some problems such as angle and distance coupling in single-frequency receiving FDA mode, large amount of calculation, and weak adaptability.
Qinghua Liu   +3 more
doaj   +1 more source

An Overview of Frequency Diverse Array Radar Technology

open access: yesLeida xuebao, 2018
The carrier frequencies of array elements in a Frequency Diverse Array (FDA) radar are slightly distinguished, leading to a range-angle-time-dependent transmit beampattern. Thus, an FDA radar carries additional information in a certain range and provides
Xu Jingwei   +3 more
doaj   +1 more source

Angle-range-polarization-dependent beamforming for polarization sensitive frequency diverse array

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
In this paper, we present a polarization sensitive frequency diverse array (PSFDA), which benefits both from frequency diverse array (FDA) and polarization sensitive array (PSA), producing angle-range-polarization-dependent beamforming capability.
Hui Chen, HuaiZong Shao, HongYang Chen
doaj   +1 more source

Frequency Diversity Array for DOA Estimation

open access: yesMehran University Research Journal of Engineering and Technology, 2017
The localization of targets has been presented in this article. DOA (Direction of Arrival) is an important parameter to be determined by radar. The MLE (Maximum Likelihood Estimator) has been widely used to accurately and efficiently estimate the DOAs of multiple targets.
NAUMAN ANWAR BAIG   +2 more
openaire   +3 more sources

Focusing RF-on demand by Logarithmic Frequency-Diverse Arrays

open access: yes2020 IEEE Wireless Power Transfer Conference (WPTC), 2020
The radiating systems exploiting the frequency diversity of the antennas are powerful architectures, that can have a big impact on wireless power transmission applications, but their characterization is merely theoretical. This paper offers a deep and critical numerical analysis of frequency- diverse arrays and shows the advantages of the family with ...
Fazzini E.   +3 more
openaire   +1 more source

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