Research on Identification Technology for Weak Signals’ Development Trends of Crop Leaves’ Water Potential Based on Wavelet Theory

Cui Min Zhang; Jing Hua Wang

doi:10.4028/www.scientific.net/AMR.468-471.3045

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 468-471Research on Identification Technology for Weak...

Research on Identification Technology for Weak Signals’ Development Trends of Crop Leaves’ Water Potential Based on Wavelet Theory

Abstract:

At present, the agriculture in China is severely short of water, which turns water-saving agriculture into a must due. The basic principal of water-saving agriculture is to monitor the crop water potential on time and establish a closed-loop control system. The reality of accurate irrigating is due to the water requirement of the crop. In this way, obtaining the accurate water potential is the key technology for water-saving agriculture. However, the crop water potential and sophisticated field surroundings are relatively weak signals. In this paper, the signals are pretreated. Then the authors identify the signals of the crop water potential from the noised-signals and predict the grow trends by wavelet decomposition and reconstruction. The simulation result proves that the method could basically reflect the trend of desired signals, which is an effective analysis.

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Periodical:

Advanced Materials Research (Volumes 468-471)

Pages:

3045-3049

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.468-471.3045

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Online since:

February 2012

Authors:

Cui Min Zhang, Jing Hua Wang

Keywords:

Water Potential, Water-Saving Agriculture, Wavelet Decomposition and Reconstruction, Wavelet Theory, Weak Signal

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