Detection of Wideband Signal Number Based on Bootstrap Resampling
作者： Jiaqi Zhen
DOI: 10.1155/2016/3856727
关键词:
摘要: Knowing source number correctly is the precondition for most spatial spectrum estimation methods; however, many snapshots are needed when we determine of wideband signals. Therefore, a new method based on Bootstrap resampling proposed in this paper. First, signals divided into some nonoverlapping subbands; apply coherent signal methods (CSM) to focus them single frequency. Then, fuse eigenvalues with corresponding eigenvectors focused covariance matrix. Subsequently, use construct Finally, can be calculated obtained vector sequences according clustering technique. The has high probability success under low noise ratio (SNR) and small snapshots.
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