The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The Discrete wavelet transform (DWT) has been used in a wide range of real-time application. Algebraic integer quantization (AIQ) encoding has been proposed to represent the irrational transform basis of the wavelet transform as polynomials with integer coefficients. In this paper, we suggest to restate these polynomials to obtain simpler coefficients for both the integer coefficients and the polynomial...
In this paper, we propose a design method for a variable two-channel nonuniform-division FIR filter bank. The proposed filter bank can change the notch frequency in the stopband for each filter to reduce these noise. For changing notch frequencies, filter coefficients are approximated by polynomials using variable parameters in the proposed filter bank. In addition, the proposed filter bank satisfies...
In this paper the practical aspects of the extracted window method applied to the nearly optimal fractional sample delay (FSD) filter design has been investigated. As the window method is one of the most numerically efficient digital filter design methods, this approach is well suited for variable fractional sample delay (VFSD) filter implementations which require frequent impulse response recalculation...
In this paper the equations of basic bandgap reference (BGR) voltage circuits are reconstructed considering dependency of bandgap energy (Eg) to absolute temperature. Notice that previous works all consider Eg as a constant, independent of temperature variations. Dependence of bandgap energy to absolute temperature is firstly approximated by a second-degree polynomial using Lagrangian interpolating...
Conditions for the existence of positive stable realizations with system Metzler matrices for proper transfer function are established. A method based on the decomposition of transfer functions into the first, second and third orders transfer functions for computation of positive stable realizations is proposed. A method for computation of positive stable realizations of transfer functions with real...
In order to support higher data rates of up to 5.76 Mbps in the uplink the UMTS specification is enhanced by HSUPA. These higher data rates are achieved by multiplexing more code channels on the same transmit bandwidth. For certain configurations the adjacent channel leakage is however also increased due to the power amplifier nonlinearities. Thus the standard requires a power back-off for these cases...
In the paper, an efficient and reliable algorithm for solving the circuit algebraic-differential equations is characterized first, which is based on a sophisticated arrangement of the Newton interpolation polynomial. For enhancing the efficiency of repeated solutions of linear systems necessary in the Newton-Raphson method, a novel modification of the Markowitz criterion is suggested, which is compatible...
This paper describes how a novel distortion contribution analysis can be used efficiently for improving the linearity of a nonlinear circuit. The distortion analysis technique called Volterra-on-Harmonic-Balance calculates a distortion contributions in each tone and node for each nonlinear elements of the nonlinear devices in the circuit. As the analysis provides large amount of data, also the flow...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.