Due to technology limitations as well as stringent operating conditions that are imposed, the design of fully integrated analog RF front-end circuits is aimed at the edge of the required performances. Such an approach implies that each dB of power or noise is of high importance, as it directly determines the range of operation of a system. Accordingly, a design trajectory that offers certain po...

We present a generalized optimal minimum phase digital FIR lter design algorithm that supports (1) arbitrary magnitude response speci cations, (2) high coe cient accuracy, and (3) real and complex lters. The algorithm uses the Discrete Hilbert Transform relationship between the magnitude spectrum of a causal real sequence and its minimum phase delay phase spectrum given by Cizek. We extend the ...

The problem of allpass lter design for phase approximation and equalization in the Chebyshev sense is solved by using a generalized Remez algorithm. Convergence to the unique optimum is guaranteed and is achieved rapidly in the actual implementation. The well-known numerical problems for higher degree lters are analyzed and solved by a simple approach. Possible applications are: design of lters...

In many practical cases, the identi cation of a system is done using data measured on the plant in closed loop with some controller. In this paper, we show that the internal stability of the resulting model, in closed loop with the same controller, cannot always be guaranteed if this controller is unstable and/or nonminimum phase, and that the direct, indirect and joint input-output approaches ...

Introduction Frequency synthesisers form the basis of most radio system designs and their performance is often key to the overall operation. This paper will present an introductory overview of the basic parameters governing the design of a phase locked loop frequency synthesiser and their effects, with the sources of phase noise within a design also being considered. Finally a list of common pr...

This paper reports recent progress in achieving sub-half-micron feature sizes with UV laser illumination based on a novel interferometric phase shifting (IPS) technique. In the IPS arrangement, the intensity and amount of phase shift of the shifted beam can be controlled continuously and independently using the same mask. Consequently the method can be considered as a convenient general testbed...

In this paper, Chi’s real one-dimensional (1-D) parametric nonminimum-phase Fourier series-based model (FSBM) is extended to two-dimensional (2-D) FSBM for a 2-D nonminimumphase linear shift-invariant system by using finite 2-D Fourier series approximations to its amplitude response and phase response, respectively. The proposed 2-D FSBM is guaranteed stable, and its complex cepstrum can be obt...

In this paper, a methodology for estimating area, energy consumption and execution time of an application executed on a specified processor is proposed. In addition, a design exploration process to find suitable processor architectures for a specific application is proposed. Cost and performance estimation is an important part of the exploration process. The actual cost estimation is based on p...

The paper describes design of the Design Pattern ITS system, an intelligent tutoring system for learning Design Patterns. The basic idea of this system is a systematic introduction into the concept of most frequently used classes of patterns. An individual course is generated automatically for a given teaching goal and is dynamically adapted at run time to the student’s individual progress and ...