Results 31 to 40 of about 5,705,928 (279)
Impacts of frequency increment errors on frequency diverse array beampattern [PDF]
EURASIP Journal on Advances in Signal Processing, 2015 Different from conventional phased array, which provides only angle-dependent beampattern, frequency diverse array (FDA) employs a small frequency increment across the antenna elements and thus results in a range angle-dependent beampattern. However, due to imperfect electronic devices, it is difficult to ensure accurate frequency increments, and ...
Kuandong Gao +4 more
openaire +2 more sources
Direction modulation based on non‐linear frequency diverse array
Electronics 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
Range-Ambiguous Clutter Suppression via FDA MIMO Planar Array Radar with Compressed Sensing
Remote 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
Frequency diverse array radar [PDF]
, 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
Accurate Theoretical Models for Frequency Diverse Array Based Wireless Power Transmission
Energies, 2022 Wireless power transfer (WPT) is a well-known problem, and has received wide attention in the next generation industrial applications and consumer electronics. On the other hand, frequency diverse array (FDA) is a new concept with the ability to generate
Zeeshan Ahmad +3 more
doaj +1 more source
Frequency Diverse Array Target Localization Based on IPSO-BP
International 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
A New Class of Broadband Arrays With Frequency Invariant Beam Patterns [PDF]
, 2004 In this paper, a new class of broadband arrays with frequency-invariant beam pattern is proposed. By suitable substitutions, the beam pattern of a continuous sensor array with continuous temporal processing can be regarded as the Fourier transform of its
S. Weiss +5 more
core +4 more sources
An Overview of Frequency Diverse Array Radar Technology
Leida 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
Frequency Diverse Array with Cubic Sinusoidal Frequency Offset
Journal 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
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Frequency Diverse Array Auto-Scanning Beam Characteristics and Potential Radar Applications
IEEE Access, 2022 Different from the phased-array with the same carrier frequency for all elements providing only angle-dependent beampattern, frequency diverse array (FDA) using a small frequency offset across its array elements offers new application capabilities due to
Wen-Qin Wang
doaj +1 more source