A Novel Design Approach for Contourlet Filter Banks

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A novel optimization design approach for Contourlet directional filter banks

A Contourlet transform, an expansion of a wavelet transform, is a double filter bank structure composed of Laplacian Pyramid and directional filter banks. Several wavelet filters of preferable performance have been developed for wavelet transforms, e.g. CDF (Cohen, Daubechies and Feauveau) 9/7 filter. However, there is still only a limited number of wavelet filters applicable for Contourlet tra...

متن کامل

Active Power Filter Design by a Novel Approach of Multi-Objective Optimization

This paper presents an innovative active power filter design method to simultaneously compensate the current harmonics and reactive power of a nonlinear load. The power filter integrates a passive power filter which is a RL low-pass filter placed in series with the load, and an active power filter which comprises an RL in series with an IGBT based voltage source converter. The filter is assumed...

متن کامل

Translinear Transconductor Design for Cochlear Filter Banks

The ve major requirements of a transconductance-C integrator for use in cochlear lter banks are: low voltage, low power, small area, wide tuning range, and high dynamic range. The BiCMOS transconductor of Andreou and Liu [1], which incorporates MOSTs operating in strong and weak inversion and a bipolar current multiplier, simultaneously satis es all of these design criteria. Moreover, each stag...

متن کامل

Subspace approach for the design of cosine-modulated filter banks with linear-phase prototype filter

In this correspondence, a method for designing perfect reconstruction (PR) prototypes for paraunitary cosine-modulated filter banks is presented. The design procedure is based on a subspace approach that allows linear combinations of even-length linear-phase PR prototype filters in such a way that the resulting filter is also a linear-phase PR prototype. Within a given subspace, the weights of ...

متن کامل

A Design Framework for Low Power Analog Filter Banks

We detail the design of multiresolution analog lter banks, linear models of cochlear function, with power dissipation being a prime engineering constraint. We propose that a reasonable goodness criterion is the information rate through the system, per Watt of power dissipated. Speech applications requiring lter banks with a wide frequency tuning range, from 20 Hz to 20 kHz, and low power consum...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: IEICE Transactions on Information and Systems

سال: 2010

ISSN: 0916-8532,1745-1361

DOI: 10.1587/transinf.e93.d.2009