| 摘要 |
<p>Apparatus and method for recognizing Global System for Mobile communication (GSM) signals are provided. The solution comprises obtaining (202) as an input a sampled signal; determining (204) the 8 th order moment for a group of samples of the input signal corresponding to the length of one or two frames of a GSM signal; determining (206) peak to average power and peak to average power variance for the group of samples of the input signal corresponding to the length of one or two frames of a GSM signal; comparing (208) the obtained 8 th order moment to predetermined thresholds and the obtained peak to average power and peak to average power variance to predetermined thresholds; determining (210) whether the input signal is a GSM-type signal on the basis of the comparisons.</p> |
