A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/12 (2006.01)
Patent
CA 2346243
A new method of DPOAE signal level measurement based on a recently developed family of nonlinear adaptive algorithms is presented. Three core units are employed to extract and measure the two artifacts and the DPOAE signal. Each core unit, which can be any of the three members of a new family of signal processing algorithms, has the capability to lock on and track the time variations of a specified sinusoidal component of its input signal. The core units have very simple structure while maintaining very good perfor- mance in noisy environments in terms of stability and convergence speed. Performance of the present method is demonstrated with the aid of computer simulations. The present method features structural simplicity which renders it suitable for both software and hardware implementation. It offers extremely high noise immunity and requires shorter measurement time than conventional methods.
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