Qptinnrrni controller designs are developed which take account of the digital round-of€ errors in the controller implementation and in the A/D and D/A converters for the case of uniform skewed sampling. Skewing the control samples allows the computational delay in the control computer t o be accommodated in the optimization problem. These results provide a very general extension to the LQG theo...

In this paper, an effective approach is proposed for designing discrete coefficient 2-D FIR digital filters for sampling structure conversion. After obtaining the initial continuous solution, the conventional Lagrange multiplier approach associated with an appropriate tree search algorithm is used iteratively to optimize the remaining unquantized coefficients of the designed filter in the least...

This paper describes a new approach to the design of multidimensional (M-D) nite-wordlength digital lters with speciications in the frequency and spatial domains. The approach is based on stochastic optimization and extends previous work on nite impulse response (FIR) lters in two ways: by inclusion of spatial constraints and by application to the case of innnite impulse response (IIR) lters. T...

AbdvactThe effects of quantization in an LMS-Newton adaptive filtering algorithm are investigated. The algorithm considered uses an optimum convergence factor, that forces the output ayoclteriori error to become zero in each iteration. The prOpagation of errors due to quantization in the internal variables of the algorithm is investigated and a closed-form formula for the excess mean square err...

background: diabetic patients have a higher prevalence of non-dipping pattern in blood pressure (bp) than general population. non-dipping arterial pressure pattern is associated with increased cardiovascular risk. the objective of this study was to investigate the association between the clinical and paraclinical characteristics of the diabetic patients with circadian bp variability. m aterials...

introduction : the purpose of this study was to examine and compare the social adjustment in balanced and non-balanced patterns of the parent-child relationship.  methods : the research population was all female gifted students in the farzanegan high school in the first educational district of tehran in 2013-14. the sample research included 96 female gifted students who answered the parent-chil...

This paper addresses the problem of designing nite precision one-dimensional (1-D) innnite impulse response (IIR) digital lters for video processing. The design algorithm is based on simultaneous minimization of magnitude, phase and stability errors in a discrete space of solutions using simulated annealing. It is demonstrated that the approach results in lters characterized by a substantially ...

We propose a new complex block floating-point format to reduce implementation complexity. The new format achieves wordlength reduction by sharing an exponent across the block of samples, and uses box encoding for the shared exponent to reduce quantization error. Arithmetic operations are performed on blocks of samples at time, which can also reduce implementation complexity. For a case study of...