Detection of Wideband Signal Number Based on Bootstrap Resampling

Detection of Wideband Signal Number Based on Bootstrap Resampling

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Knowing source number correctly is the precondition for most spatial spectrum estimation methods; aftermath cabernet sauvignon 2017 however, many snapshots are needed when we determine number of wideband signals.Therefore, a new method based on Bootstrap resampling is proposed in this paper.First, signals are divided into some nonoverlapping subbands; apply coherent signal methods (CSM) to focus them on the single frequency.Then, fuse the eigenvalues with the corresponding eigenvectors of the focused covariance matrix.Subsequently, use Bootstrap to construct the new resampling matrix.

Finally, the number of wideband signals can be calculated with obtained vector sequences according to red terracotta wella 6r clustering technique.The method has a high probability of success under low signal to noise ratio (SNR) and small number of snapshots.