Results 21 to 30 of about 5,425,503 (237)
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
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Numerical Model of a 28-GHz Frequency Diverse Array Antenna
Proceedings, 2020 In this work we make use of the frequency diverse array (FDA) concept, whose design is based upon a frequency increment across the antenna elements to generate a beam steering that is a function of angle, time and range.
Marc Bernice Angoue Avele +4 more
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Experimental Test of Continuous Wave Frequency Diverse Array Doppler Radar
Applied SciencesThe frequency diverse array (FDA) is an antenna array architecture capable of beamforming in both range and angle. It improves upon the traditional phased array (PA), which can only achieve beamforming in angle.
Nicholas R. Munson +3 more
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International Journal of Antennas and Propagation, 2018 Unlike phased array bringing angle-dependent and range-independent beamforming, a new kind of radar system called frequency diverse array (FDA) has been widely used for its ability to generate angle-range-dependent beampattern, which provides a broad ...
Ming Tan +4 more
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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
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From Sensing Mechanisms to System Co-Design: Graphene-Based Sensors and Readout Circuits. [PDF]
Adv Sci (Weinh)This review establishes a unified PS–EQ–RF framework linking graphene sensing mechanisms, native electrical outputs, and output‐specific readout circuits. Voltage‐, current‐, resistance‐, and capacitance‐type sensing systems are systematically classified to guide architecture selection, low‐noise design, system co‐design, and practical integration ...
Zhang J +5 more
europepmc +2 more sources
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
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IET Radar, Sonar & Navigation, 2022 Considering the signal model of the frequency diverse array (FDA), the amplitude and phase characteristics cannot be ignored. The beampattern mainly reflects the amplitude characteristics.
Jiaang Ge, Junwei Xie, Bo Wang
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Narrow band space scanning two-dimensional linear frequency diverse array radar
The Journal of Engineering, 2019 Two–dimensional (2D) linear frequency diverse array (FDA) concept is extended to scan a 2D wide angular sector. This is achieved by highly unequal frequency increments in orthogonal 2D directions of the array.
Ramazan Çetiner, Altunkan Hizal
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Efficient Beampattern Synthesis for Sparse Frequency Diverse Array via Matrix Pencil Method
Sensors, 2022 Due to the introduction of frequency offsets, the pattern synthesis problem of sparse Frequency diverse array (FDA) becomes more complicated than that of the phased array. A typical way to solve this problem is to use a global optimization algorithm, but
Xiaolang Shao +5 more
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