92nd American Meteorological Society Annual Meeting (January 22-26, 2012)

Tuesday, 24 January 2012: 2:30 PM
Using the Multi-Channel Receiver to Study Sidelobe Cancellation on the National Weather Radar Testbed
Room 357 (New Orleans Convention Center )
Christopher D. Curtis, CIMMS/NSSL, Norman, OK; and M. Yeary and R. D. Palmer
Manuscript (231.2 kB)

The National Weather Radar Testbed (NWRT) provides a unique opportunity to study the effectiveness of sidelobe cancellation for mitigating ground clutter. The testbed is made up of a phased array antenna that has several receive-only auxiliary apertures that are separate from the main array and an eight-channel receiver for archiving multiple channels of time series data. This multi-channel receiver is a collaborative project between the OU Atmospheric Radar Research Center and the National Severe Storms Laboratory. Sidelobe channels have previously been utilized on wind profiling radars to mitigate ground clutter, and some of the same techniques should also be applicable to weather surveillance radars. The sum and sidelobe channel data can be recorded and processed to explore different approaches for addressing ground clutter contamination. This paper will examine some of the existing algorithms for employing sidelobe cancellers and apply these algorithms to collected time series data. This could lead to new ways to mitigate ground clutter on weather surveillance radars in the future.

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