| 摘要 |
<p>A signal filtering method for filtering signals obtained at a number of time points by an electronic device is provided. Each of the signals corresponds to an i-th value at an i-th time point of the abovementioned time points, and the i-th value and an (i+1)-th value are defined as an i-th ordering sequence, wherein i is a positive integer. Each of the i-th ordering sequence and an (i+1)-th ordering sequence conforms to a first strict monotonicity. If the two values of an ordering sequence are equal to each other, one of them is deleted. The method includes the following steps. Firstly, it is determined whether an (i+2)-th ordering sequence conforms to a second strict monotonicity. If yes, then execute the next step. It is determined whether an (i+3)-th ordering sequence conforms to the second strict monotonicity. If not, a signal obtained at an (i+3)-th time point is deleted.</p> |
