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LOGO: Journal of Cotton Science


Adaptive Signal Processing for Removal of Impulse Noise from Yield Monitor Signals

Authors: Mathew G. Pelletier
Pages: 224-233
Engineering and Ginning

The use of precision agriculture has driven the need for yield monitors. Yield monitors used for research require more rigorous standards of measurement in order to provide spatial data at a finer grid size than typically used in an on-farm application. The objective of this study was to develop a method for load-yield monitors to correct for impulse noise that occurs whenever a harvester drives over a hole, ditch, or large rocks. Removing such artifacts of the instrument will improve the quality of the data obtained over a shorter grid size, which is more appropriate for research requirements than are the typical large grid sizes of commercial yield monitors currently in use. The system developed demonstrated a reduction in impulse noise through the use of an accelerometer to obtain the impulse noise response, which was then used in an adaptive noise-cancellation signal processing technique to reduce impulse noise in the yield signal.