Results 21 to 30 of about 5,674,494 (231)
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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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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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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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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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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Journal 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
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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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Frequency Diverse Array Radar Signal Processing via Space-Range-Doppler Focus (SRDF) Method
Leida xuebao, 2018 To meet the urgent demand of low-observable moving target detection in complex environments, a novel method of Frequency Diverse Array (FDA) radar signal processing method based on Space-Rang-Doppler Focusing (SRDF) is proposed in this paper. The current
Chen Xiaolong +4 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
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Secure Transmission of Radio Orbital Angular Momentum Beams Based on the Frequency Diverse Array
IEEE Access, 2021 The circular phased array is one of the main methods to generate radio frequency orbital angular momentum (RF-OAM) beams with high purity and capability of OAM-beams steering, but OAM beams generation and steering are only related to angle, not range ...
Jingcan Ma +5 more
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