A matlab toolbox has been developed that analyzes digital lter structures. After describing the digital lter structure in a SPICE-like format, the programs of this toolbox can map a digital lter structure into a state-space description, convert a state-space description to a z-domain transfer function, compute the maximum signal magnitude when input is bounded by unity, compute noise power at t...

The study of countermeasures for hardware fault attack in multi-prime RSA cryptosystems is very important for applications such as computer network and smart cards. In this paper, an efficient countermeasure method is proposed for the FPGA-based multi-prime RSA systems. The proposed method can survive the attacks [27, 30] that broke the previous methods [5, 33]. Furthermore, by using a simple o...

This paper investigates the problem of designing-nite precision one-dimensional (1-D) innnite impulse response (IIR) lters with prescribed magnitude, phase and stability constraints. The design problem is formulated as the minimization of a cost function incorporating these connicting requirements. The rst two elements of the cost function express magnitude and group delay errors between the de...

Given a two-level regular fractional factorial design of resolution IV, the method of doubling produces another design of resolution IV which doubles both the run size and the number of factors of the initial design. On the other hand, the projection of a design of resolution IV onto a subset of factors is of resolution IV or higher. Recent work in the literature of projective geometry essentia...

The steady-state performance of adaptive equalizers can significantly vary when they are implemented in finite precision arithmetic, which makes it vital to analyze their performance in a quantized environment. In this paper we present a fixed point analysis for the steady-state mean square error (MSE) of a blind adaptive equalizer and the optimal value of the step-size that minimizes this MSE....

In this paper, a new technique is presented for the design and optimization of digital FIR filters with coefficients that are presented in canonic signed-digit (CSD) format. Since such implementation requires no multipliers, it reduces the hardware cost and lowers the power consumption. The proposed technique considers three goals, the optimum number of coefficients, the optimum wordlength, and...

Shepherd and McWhirter proposed a QRD-RLS algorithm for adaptive filtering with linear constraints. In this paper, the numerical properties of this algorithm are considered. In particular, it is shown that the computed weight vector satisfies a set of constraints which are perturbed from the original ones, the amount of perturbation being dependent on the wordlength. The linearly constrained FL...

Abstract – This paper describes an efficient architecture for FIR filters. By exploiting the reduced complexity made possible by the use of sparse powers-of-two coefficients, an FIR filter tap can be implemented with only 2B full adders and 2B (or 4B) latches, where B is the intermediate wordlength. Word and bit level parallelism allows high sampling rates, limited only by the full adder delay....

Two orthogonal arrays based on 3 symbols are said to be isomorphic or combinatorially equivalent if one can be obtained from the other by a sequence of row permutations, column permutations and permutations of symbols in each column. Orthogonal arrays are used as screening designs to identify active main effects, after which the properties of the subdesign for estimating these effects and possi...