Signal Processing. For each recorded sample the autopower spectrum shall be determined, using a ▇▇▇▇▇▇▇ window and at least 66.6% overlap averages. The reported speed is the average of the speed during the time sample. In case of test method (A) the [four] determined spectra per test speed shall be energetically averaged. The resulting average spectrum per test speed shall be used for the further calculation. In all other cases the derived frequency spectrum shall directly be used for the further calculation. The reported speed is the average of the [four] measurements.
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Sources: Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles
Signal Processing. For each recorded sample the autopower spectrum shall be determined, using a ▇▇▇▇▇▇▇ window and at least 66.6% overlap averages. The reported speed is the average of the speed during the time sample. In case of test method (A) the [four] determined spectra per test speed shall be energetically averaged. The resulting average spectrum per test speed shall be used for the further calculation. In all other cases the derived frequency spectrum shall directly be used for the further calculation. The reported speed is the average of the [four] measurements.
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