| 摘要 |
<p>A method for estimating parameters of a system for spreading the spectrum of a first periodic signal according to a modulation period. An embodiment comprises the steps of sampling the first signal by means of a second periodic signal, of determining based on the sampling result each occurrence where the first and second signals are synchronous, of incrementing a first counter at each sampling, the first counter being reset at each said occurrence, of storing at each said occurrence the last value of the first counter before resetting, of providing a third periodic signal at a first level when said last value is greater than a threshold and at a second level when said last value is smaller than the threshold, and of determining the modulation period based on the period of the third signal.</p> |
