Method and device for detecting frequency correction channel

The invention discloses a method and a device for detecting a frequency correction channel, and relates to the technical field of mobile communication. In consideration that the detection of the frequency correction channel is easy to be influenced by noise and multi-path interference, power spectrum characteristics which are not easy to be influenced by noise and multi-path interference are used for analytical detection so that the false dismissal and false alarm properties of the detection of the frequency correction channel are improved. The method disclosed by the embodiment of the invention comprises the following steps of: converting a received signal into a frequency domain signal and calculating the power spectrum of the frequency domain signal; judging single-peak characteristic according to the power spectrum and determining an initial detection frequency correction channel result; and optimally analyzing the initial detection frequency correction channel result by use of the power spectrum characteristics of normal burst and noise to determine a target detection frequency correction channel result. The scheme provided by the invention is suitable for detecting the frequency correction channels.