An order-selection algorithm for exponentially damped sinusoids model

作者：Wang Song^*; Bao Chang Chun

来源：Acta Electronica Sinica, 2010, 38(1): 141-145.

• Estimation procedures
• Exponentially damped sinusoids
• Harmonic retrieval
• High resolution
• Model order estimation
• Model-based
• Model-order selection
• Selection algorithm
• Shift invariance
• Signal components
• Signal sub-space

This paper presents a new order-selection algorithm for exponentially damped sinusoids model based on subspace and structured total least norm method. It constructs model order estimation criterion by utilizing the shift invariance of the signal subspace, and the principle of total error reaching minimum when order matching with the number of signal components. The results of simulation show a higher estimation accuracy of the new algorithm. The algorithm is not required to set a threshold and penalization terms, and can accomplish estimation procedure automatically. It can be applied to the high resolution harmonic retrieval algorithms.

• 出版日期2010
• 单位北京大学