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13 May 2022 Design and implementation of a wideband C-band digital array module based on FPGA
Wei Fu, Tao Ke, Jia Song
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Proceedings Volume 12248, Second International Conference on Sensors and Information Technology (ICSI 2022); 1224806 (2022) https://doi.org/10.1117/12.2637555
Event: 2nd International Conference on Sensors and Information Technology (ICSI 2022), 2022, Nanjing, China
Abstract
This paper presents the design and implementation of a wideband C-band digital array module. The main components of the digital array module, including wideband digital T/R module, frequency synthesizer and power module, are discussed in detail. At reasonable design cost and effort, the proposed module with a relatively compact size and flexible design is fabricated based on field programmable gate array. In this paper, a high intermediate frequency wideband signal is generated based on direct digital synthesizer in a polyphase structure by using coordinated rotation digital computer algorithm. What is more, a wideband waveform real-time delay compensation technique based on variable fractional delay filter is proposed to satisfy the beamforming requirement. At last, simulations and experiments verify the feasibility and effectiveness of the proposed wideband digital array module. The measurement results in this paper will help to a better understanding of the wideband digital array radar.
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Wei Fu, Tao Ke, and Jia Song "Design and implementation of a wideband C-band digital array module based on FPGA", Proc. SPIE 12248, Second International Conference on Sensors and Information Technology (ICSI 2022), 1224806 (13 May 2022); https://doi.org/10.1117/12.2637555
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KEYWORDS
Radar
Antennas
Signal generators
Field programmable gate arrays
Signal processing
Digital filtering
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