Patent ID: 6993399

Claim:
A method for aligning first and second sets of wide-bandwidth data, each of the first and second sets of data including first and second subsets of data aligned with respect to each other, each first subset of data having a first resolution and each second subset of data having a second resolution that is lower than the first resolution, the method comprising the steps of: computing a magnitude-only spectrogram for each of the first subsets of data of the first and second sets of data, using a spectrogram slice length that is appropriate for the stationarity characteristics of the first subsets of data of the first and second sets of data and a spectrogram step size that is appropriate for the quantization period of the final alignment; computing a one-dimensional cross-correlation of the magnitude-only spectrograms for the first subsets of data of the first and second sets of data; and selecting an alignment of the first subsets of data, and, consequently, the first and second sets of data, at the second resolution, based on the cross-correlation.