Sign-Sign Algorithm for Unbiased IIR Filtering in Impulsive Noise
نویسنده
چکیده
A new equation-error based sign-sign algorithm, which is derived from a modified least-mean-squares technique, is proposed for infinite impulse response (IIR) filtering in impulsive noise. It is demonstrated that the suggested method gives unbiased IIR system parameter estimates for different types of impulsive noise. 1 This paper is a postprint of a paper submitted to and accepted for publication in Electronics Letters and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.
منابع مشابه
Adaptive-Filtering-Based Algorithm for Impulsive Noise Cancellation from ECG Signal
Suppression of noise and artifacts is a necessary step in biomedical data processing. Adaptive filtering is known as useful method to overcome this problem. Among various contaminants, there are some situations such as electrical activities of muscles contribute to impulsive noise. This paper deals with modeling real-life muscle noise with α-stable probability distribution and adaptive filterin...
متن کاملA novel normalized sign algorithm for system identification under impulsive noise interference
To overcome the performance degradation of adaptive filtering algorithm in presence of impulsive noise, a novel normalized sign algorithm (NSA) based on the convex combination strategy is proposed in this paper, which is an adaptive combination of two NSA filters with the different step-size, called NSA-NSA. The proposed approach is capable of solving the conflicting requirement of fast converg...
متن کاملA new efficient filtered-x affine projection sign algorithm for active control of impulsive noise
Impulsive noise is often encountered in the practical active noise control (ANC) applications. Traditional ANC algorithms fail to control such noise. Derived by minimizing the l1 norm of an estimated a posteriori error vector, a new filtered-x affine projection sign algorithm (NFxAPSA) is proposed to efficiently and effectively suppress impulsive noise. Two typical extensions, such as variable ...
متن کاملBlock Sparse Memory Improved Proportionate Affine Projection Sign Algorithm
A block sparse memory improved proportionate affine projection sign algorithm (BS-MIP-APSA) is proposed for block sparse system identification under impulsive noise. The new BS-MIP-APSA not only inherits the performance improvement for block-sparse system identification, but also achieves robustness to impulsive noise and the efficiency of the memory improved proportionate affine projection sig...
متن کاملQR based iterative unbiased equation error filtering
A QR-decomposition based algorithm is presented for unbiased, equation error adaptive IIR filtering. The algorithm is based on casting the adaptive IIR filtering in a mixed Least Squares Total Least Squares (LS-TLS) framework. This formulation is shown to be equivalent to the minimization of the mean-square equation error subject to a unit norm constraint on the denominator parameter vector. An...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2001