Estimation of the number of signal components based on singular values of noise subspace

Xin Peng Zhou*, Feng Han, Guo Hua Wei, Si Liang Wu

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

A new method is proposed to improve the performance of estimating the number of signal components in low Signal-to-Noise Ratio (SNR) environment, based on singular values of noise subspace and the principle of Constant False Alarm Rate (CFAR). Through researching the relationship between singular values of Hankel matrix and the energy of noise, the threshold of detecting singular values of noise subspace is got in a certain probability of false alarm by using the characteristic of Gaussian white noise envelope submitting to exponential distribution. Simulation results show that the method is effective in low SNR condition.

源语言英语
页(从-至)2039-2044
页数6
期刊Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology
33
9
DOI
出版状态已出版 - 9月 2011

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