کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
507561 | 865133 | 2009 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fast trend extraction and identification of spikes in bathymetric data
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Average interpolating subdivision is a fast method for finding trends in data sets collected with multibeam echo sounders. By grouping a suitable number of pings together, a swath is sectioned into a series of geographical areas that are analyzed consecutively. This makes it possible to exploit both cross-track and along-track correlations in identifying outliers. A one-dimensional example shows how the algorithm behaves in the presence of spikes, burst noise, and random measurement errors. More realistic experiments are carried out on multibeam echo sounder data collected with an EM 1002 system. The algorithm is fast enough for real time identification of spikes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Geosciences - Volume 35, Issue 6, June 2009, Pages 1061–1071
Journal: Computers & Geosciences - Volume 35, Issue 6, June 2009, Pages 1061–1071
نویسندگان
Jan T. Bjørke, Stein Nilsen,