Method for detecting an OFDM signal

摘要

The method involves transposing a received signal into a baseband, and subjecting the received signal to band-pass filtering corresponding to a band of interest before being sampled. The sampled signal is subjected to another filtering e.g. band-pass filtering, suppressing an interfering ray in the band of interest by decimation of the sampled signal. Presence of an orthogonal frequency division multiplexingsignal is detected if the filtered signal after the latter filtering is cyclo-stationary.