Leveraging Software-Defined Radio Techniques in Multichannel Digital Weather Radar Receiver Design

This paper describes the instrumentation, design, and implementation of an inexpensive nearly all-digital field-programmable gate-array (FPGA)-based radar receiver useful in a variety of applications including single-/dual-polarization weather radar, sidelobe cancellation, subarray modules for a dig...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 2012-06, Vol.61 (6), p.1571-1582
Main Authors: Meier, J., Kelley, R., Isom, B. M., Yeary, M., Palmer, R. D.
Format: Article
Language:English
Subjects:
Atmospheric measurements
Clocks
coherent receiver
Field programmable gate arrays
Meteorological radar
Meteorology
multirate digital filters
radar
Radio frequency
Receivers
remote sensing
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Summary:This paper describes the instrumentation, design, and implementation of an inexpensive nearly all-digital field-programmable gate-array (FPGA)-based radar receiver useful in a variety of applications including single-/dual-polarization weather radar, sidelobe cancellation, subarray modules for a digital beam-forming phased-array radar, and other applications where a compact, low-power, and low-cost receiver is needed. The design of the receiver includes a minimal analog radio-frequency front-end followed by an analog-to-digital converter utilizing a bandpass sampling technique which allows the FPGA to produce baseband in-phase (I) and quadrature (Q) signals without the use of multipliers or lookup tables.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2011.2178670