Tuesday, 25 October 2005
Alvarado F and Atria (Hotel Albuquerque at Old Town)
This paper examines the increase in WSR-88D system noise due to large input signals. The Open Radar Data Acquisition (ORDA) frequency domain clutter filter, GMAP, nominally achieves 10dB more clutter filtering than the Legacy 5-pole elliptic IIR filter. The increased clutter removal reveals the effect of large input signals on the noise floor. To remove the noise biased data, clutter censoring must be applied after clutter filtering. The ORDA technique discussed in this paper minimizes weather removal when clutter censoring is applied. Finally, a comparison between Legacy clutter suppression and ORDA clutter suppression is presented.
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