Method of estimating crop yields

Details Method of estimating crop yields Method of estimating crop yields

2006-08-08

2006-08-08

McEheny, Jr., Donald (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

Reexamination Certificate

active

07089117

ABSTRACT:
A method of estimating the instantaneous crop yield ŷ2(t) at time t in a field, during harvesting with a harvesting machine that operates by cutting and/or controlling the crop and has a crop mass flow sensor that measures the mass flow rate of crop processed by the machine at a location remote from that at which the harvesting machine cuts the crop and generates a signal {dot over ({circumflex over (m)}out(t) indicative thereof, including the steps of: generating a mass flow rate signal {dot over ({circumflex over (m)}out(t) using the sensor;generating an area rate signal ŝ(t) indicative of time domain variations in the area of the field harvested per time unit;filtering the area rate signal ŝ(t) using a function P(s) representative of the dynamics of the harvesting machine to generate a filtered area rate signal ŝ2(t); andusing the filtered area rate signal ŝ2(t) for deriving from the mass flow rate signal {dot over ({circumflex over (m)}out(t) a yield per area unit ŷ2(t).

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