Abstract: A combination of signal parameters of a received OFDM signal are determined by determining, for each of a plurality of lags, a plurality of correlation peaks for the OFDM signal, wherein the correlation peaks form a plurality of sets of peaks, wherein each set of peaks is associated with a combination of signal parameters of the OFDM signal; performing a validation procedure to validate one or more peaks based on at least one correlation peak value; and determining a combination of signal parameters of the OFDM signal based on the validated peaks in the sets of peaks.

Abstract: The presence of an OFDM signal in a received input signal is detected by calculating, for each block of a plurality of blocks of samples of the received input signal, an auto-correlation value at each of a plurality of lags-of-interest; determining, for each of the plurality of lags-of-interest, a rate of growth value across a group of two or more blocks of data samples based on the auto-correlation values; normalising the determined rate of growth values using a normalisation factor to generate normalised rate of growth values; and determining whether an OFDM signal is present in the received input signal based on the normalised rate of growth values.

Abstract: The presence of an OFDM signal in a received input signal is detected by calculating, for each block of a plurality of blocks of samples of the received input signal, an auto-correlation value at each of a plurality of lags-of-interest; determining, for each of the plurality of lags-of-interest, a rate of growth value across a group of two or more blocks of data samples based on the auto-correlation values; normalising the determined rate of growth values using a normalisation factor to generate normalised rate of growth values; and determining whether an OFDM signal is present in the received input signal based on the normalised rate of growth values.

Abstract: A combination of signal parameters of a received OFDM signal are determined by determining, for each of a plurality of lags, a plurality of correlation peaks for the OFDM signal, wherein the correlation peaks form a plurality of sets of peaks, wherein each set of peaks is associated with a combination of signal parameters of the OFDM signal; performing a validation procedure to validate one or more peaks based on at least one correlation peak value; and determining a combination of signal parameters of the OFDM signal based on the validated peaks in the sets of peaks.