Use the coiflets and daubechies wavelet transform to reduce data noise for a simple experiment
In this research, a simple experiment in the field of agriculture was studied, in terms of the effect of out-of-control noise as a result of several reasons, including the effect of environmental conditions on the observations of agricultural experiments, through the use of Discrete Wavelet transfor...
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| Published in: | المجلة العراقية للعلوم الاحصائية Vol. 19; no. 2; pp. 91 - 103 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | Arabic English |
| Published: |
Mosul, Iraq
University of Mosul, College of Computer Science and Mathematics
2022
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| Abstract | In this research, a simple experiment in the field of agriculture was studied, in terms of the effect of out-of-control noise as a result of several reasons, including the effect of environmental conditions on the observations of agricultural experiments, through the use of Discrete Wavelet transformation, specifically (The Coiflets transform of wavelength 1 to 2 and the Daubechies transform of wavelength 2 To 3) based on two levels of transform (J-4) and (J-5), and applying the hard threshold rules, soft and non-negative, and comparing the wavelet transformation methods using real data for an experiment with a size of 26 observations. The application was carried out through a program in the language of MATLAB. The researcher concluded that using the wavelet transform with the Suggested threshold reduced the noise of observations through the comparison criteria.
تم في هذا البحث دراسة تجربة بسيطة في المجال الزراعي، من حيث تأثير الضوضاء الغير مسيطر عليها نتيجة لعدة اسباب منها تأثير الظروف البيئية على مشاهدات التجارب الزراعية ، من خلال استعمال التحويل المويجي المتقطع وبالتحديد (تحويل كولفد ذات طول مويجي 1 الى 2 و تحويل دويش المويجي ذات طول مويجي 2 الى 3) بالاعتماد على مستويين للتحويل (4-J)و(5-J) و تطبيق قواعد العتبة الصلبة و الناعمة و الغير سالبة و المقارنة بين الطرائق التحويل المويجي باستخدام بيانات حقيقية لتجربة ذات ܟܕܝ 26 مشاهدة، تم تنفيذ التطبيق من خلال برنامج بلغة MATLAB ، وتوصل الباحث الى ان استعمال التحويل المويجي مع العتبة المقترحة ادى الى تقليل من ضوضاء المشاهدات من خلال معايير المقارنة . |
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| AbstractList | In this research, a simple experiment in the field of agriculture was studied, in terms of the effect of out-of-control noise as a result of several reasons, including the effect of environmental conditions on the observations of agricultural experiments, through the use of Discrete Wavelet transformation, specifically (The Coiflets transform of wavelength 1 to 2 and the Daubechies transform of wavelength 2 To 3) based on two levels of transform (J-4) and (J-5), and applying the hard threshold rules, soft and non-negative, and comparing the wavelet transformation methods using real data for an experiment with a size of 26 observations. The application was carried out through a program in the language of MATLAB. The researcher concluded that using the wavelet transform with the Suggested threshold reduced the noise of observations through the comparison criteria.
تم في هذا البحث دراسة تجربة بسيطة في المجال الزراعي، من حيث تأثير الضوضاء الغير مسيطر عليها نتيجة لعدة اسباب منها تأثير الظروف البيئية على مشاهدات التجارب الزراعية ، من خلال استعمال التحويل المويجي المتقطع وبالتحديد (تحويل كولفد ذات طول مويجي 1 الى 2 و تحويل دويش المويجي ذات طول مويجي 2 الى 3) بالاعتماد على مستويين للتحويل (4-J)و(5-J) و تطبيق قواعد العتبة الصلبة و الناعمة و الغير سالبة و المقارنة بين الطرائق التحويل المويجي باستخدام بيانات حقيقية لتجربة ذات ܟܕܝ 26 مشاهدة، تم تنفيذ التطبيق من خلال برنامج بلغة MATLAB ، وتوصل الباحث الى ان استعمال التحويل المويجي مع العتبة المقترحة ادى الى تقليل من ضوضاء المشاهدات من خلال معايير المقارنة . |
| Author | Rida, Sabah Manfi Tahir, Mahmud Muhammad |
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| Title | Use the coiflets and daubechies wavelet transform to reduce data noise for a simple experiment |
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