Advanced System Identification Techniques for Acoustics Enhancement
نویسندگان
چکیده
This paper proposes a novel scheme of adaptive system identification for acoustics enhancement applications. A key contribution of this study is the development of the variable exponentially-weightedstepsize LMS (VES) algorithm based on the statistics of the overall varying characteristics of the estimate of room impulse responses. The modelling error of the VES algorithm can reduce to -20dB after only 2N iterations (N is the length of adaptive filter), about 4 times fwter than the normalised LMS algorithm under the test conditions.
منابع مشابه
System identification of a beam with frictional contact
The nonlinear system becomes an area with numerous investigations over the past decades. The conventional modal analysis could not be applied on nonlinear continuous system which makes it impossible to construct the reduced order models and obtain system response based on limited number of measurement points. Nonlinear normal modes provide a useful tool for extending modal analysis to nonlinea...
متن کاملFACTS Control Parameters Identification for Enhancement of Power System Stability
The aim of this paper is to investigate a novel approach for output feedback damping controller design ofSTATCOM in order to enhance the damping of power system low frequency oscillations (LFO). The design ofoutput feedback controller is considered as an optimization problem according with the time domain-basedobjective function which is solved by a honey bee mating optimization algorithm (HBMO...
متن کاملThe Effect of Visual Representation, Textual Representation, and Glossing on Second Language Vocabulary Learning
In this study, the researcher chose three different vocabulary techniques (Visual Representation, Textual Enhancement, and Glossing) and compared them with traditional method of teaching vocabulary. 80 advanced EFL Learners were assigned as four intact groups (three experimental and one control group) through using a proficiency test and a vocabulary test as a pre-test. In the visual group, stu...
متن کاملComparative Analysis of Various Fingerprint Image Enhancement Algorithms
There are various biometric features for personal identification but Fingerprints are today the most widely used biometric features for the same. Many automatic systems are there for fingerprint enhancement which is based on ridges and valleys. Automatic fingerprint recognition system is totally based on Fingerprint enhancement. It is necessary to choose the suitable enhancement technique for f...
متن کاملTowards concurrent identification of flame dynamics and combustion noise of enclosed flames
The purpose of this work is to highlight the importance of taking into account the two-way interaction between flame and acoustics in the prediction of combustion noise generated by enclosed turbulent flames. It is argued that in general the power spectral density (PSD) of noise inside a combustion chamber can be determined accurately only if the influence of acoustics on the flame is considere...
متن کامل