| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 730507 | Measurement | 2012 | 6 Pages |
A recent frequency estimation method was proposed in a Measurement paper for use in portable DSP based instrumentation. This method is especially important due to its low computational effort making it suitable for fast and low cost instrumentation. It has been found that many parameters can affect the frequency estimation using the proposed method. In this paper, the performance of the method in the presence of additive noise is evaluated, and the influence of signal frequency, initial phase, additive noise and number of analog-to-digital converter bits on the estimator is studied. Some caveats of the practical use of the method are addressed. Detailed numerical simulations based on a Monte Carlo procedure are presented in order to highlight the range of applicability of the method and determine the estimation bias.
► Shows that four-point sine wave frequency estimation is dependent on initial phase. ► Presents an expression for best acquisition trigger condition given signal frequency. ► Quantifies the effect of random noise and quantization error on estimation bias.
