The importance of metrology and measurements in the application of drip irrigation in horticulture

Abstract

The paper describes advantages of drip irrigation in horticulture. The importance of metrology and measurements in the drip irrigation system was explained. The effect of "gross errors" in the measurement results on the system was explained, and the method of further increasing the accuracy by processing the results obtained from measuring instruments and not taking into account "gross errors" was justified by concrete examples and diagrams. The disadvantage of using the conventional method has been pointed out. Using the proposed method, the maintenance of soil moisture in a stable state during the processing of the results obtained from the sensors was considered. This method allows saving a certain amount of water and more accurately measure soil moisture.

Improving the quality of signals using an adaptive filter

“…Noise decorrelation is approved by a decorrelator made in the form of a non-recursive filter. The decorrelator is functionally compulsory to create conditions close to the concrete operation of auto compensators [9]. A signal is directed to the input of the device for approximating the dispersion of the filtering error, to which the produced interference is mixed.…”

Filtering errors in primary sensor signals

“…But the Kotelnikov series is not very convenient, in comparison with other series, in software and hardware reconstruction, which most often determines the choice in favour of power series, Lagrange polynomials, etc. [10][11][12][13][14][15]. In the proof of the sampling theorem it is assumed that an infinite Kotelnikov series is used to recover the information.…”