Community Research and Development Information Service - CORDIS

Abstract

This paper describes five methods of curve fitting for the calibration of the Phonid Instrument. The estimation problem goes beyond the scope of classical methods because of the presence of shared errors, the heteroscedasticity of the errors and the power function form of the regression. The methods described are modified versions of ordinary least squares estimation, Kautchkoff estimation, constrained least squares estimation, Wald estimation and Theil estimation. For each method the paper gives Taylor series approximations to the variance and bias of the calibration curve power parameter. The methods are contrasted in terms of a numerical example.

Additional information

Authors: DELL'ORO P, JRC ISPRA (ITALY);FRANKLIN M, JRC ISPRA (ITALY);GUARDINI S, JRC ISPRA (ITALY);PROSDOCIMI A JRC ISPRA (ITALY), JRC ISPRA (ITALY)
Bibliographic Reference: ESARDA-INMM JOINT SPECIALIST MEETING ON NDA STATISTICAL PROBLEMS, ISPRA (ITALY), SEPT. 12-14, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32118 ORA
Availability: Can be ordered online
Record Number: 1989123070200 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en