On the complexity of curve fitting algorithms

Chernov, N.; Lesort, Claire; Simányi, Nándor

doi:10.1016/j.jco.2004.01.004

Cited by 14 publications

(7 citation statements)

References 13 publications

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“…The value of f (u 1 ) within each of the 62 × 8 segments can then be approximated more efficiently using separate linear polynomials f (u 1 ) = a × u 1 + b. The coefficients a and b for each segment were calculated using the orthogonal least squares fit method [37] to minimize the residual error. The number of segments depends on the desired accuracy and on the size of memory that is available to store the coefficients of polynomials.…”

Section: Awgn Generatormentioning

confidence: 99%

FPGA-Based Bit Error Rate Performance Measurement of Wireless Systems

Alimohammad

Fard²

2014

IEEE Trans. VLSI Syst.

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This paper presents the bit error rate (BER) performance validation of digital baseband communication systems on a field-programmable gate array (FPGA). The proposed BER tester (BERT) integrates fundamental baseband signal processing modules of a typical wireless communication system along with a realistic fading channel simulator and an accurate Gaussian noise generator onto a single FPGA to provide an accelerated and repeatable test environment in a laboratory setting. Using a developed graphical user interface, the error rate performance of single-and multiple-antenna systems over a wide range of parameters can be rapidly evaluated. The FPGA-based BERT should reduce the need for time-consuming softwarebased simulations, hence increasing the productivity. This FPGA-based solution is significantly more cost effective than conventional performance measurements made using expensive commercially available test equipment and channel simulators.Index Terms-Baseband performance validation, bit-error rate tester (BERT), fading channel simulation, field-programmable gate array (FPGA), Gaussian noise generator (GNG), Golay code, maximum likelihood (ML).

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Section: Awgn Generatormentioning

confidence: 99%

FPGA-Based Bit Error Rate Performance Measurement of Wireless Systems

Alimohammad

Fard²

2014

IEEE Trans. VLSI Syst.

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“…In the literature, almost all of the existing algorithms need a lot of execution time, choose significant peaks by examining the area of the peak or are too complex (Cheng and Sun, 2000;Chernov et al, 2004). Other algorithms ignore a peak if it is not large enough and experimental results showed that these approaches need a pre-processing of the histogram to work well, because of their noise sensitivity.…”

Section: Detection Of the Number Of Pixels Classesmentioning

confidence: 99%

Non-supervised image segmentation based on multiobjective optimization

Nakib

Oulhadj

Siarry

2008

Pattern Recognition Letters

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“…Because they displayed different dynamic curves and the shapes and curvatures were different, it is difficult to fit these data with a common function [36][37][38][39][40][41]. Figures 6 and 7 both consist of the values of the RC, which can characterize the drug effect after exposure to different concentrations of gentamicin.…”

Section: Use Of Net Rc For Estimating the Inhibitory Rate Of Gentamicmentioning

confidence: 99%

A novel approach for assessing the susceptibility of Escherichia coli to antibiotics

Zhang

Zhao

XiuLi

et al. 2010

Sci. China Life Sci.

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The dynamic growth process of Escherichia coli CVCC249 under different concentrations of antibiotics was analyzed. The results suggested that the main reason that definitive results cannot be obtained by antibiotic susceptibility testing (AST) is that the ratio of drug concentration to the population of bacteria and the combined effect of drug concentration and action time cannot be completely determined with the methods used. Based on the analysis of the growth process with a series of concentrations of gentamicin acting for a certain time, and according to the forward difference method, a novel method for AST was proposed. The net increase in turbidity of the bacterial population was used to eliminate the existing effects of resting cells, and then the recurrent coefficient for a growing sequence was used to characterize the effect of antibiotics on bacterial division, and the contour plot was used to display and analyze the combined effect of drug concentration and action time. The inhibition rate of the antibiotics can be characterized as the dynamic change in the composite function of the antibiotic concentration and action time, which indicated that the inhibition rate was dependent on the combined effect of time and concentration of antibiotics. The effectiveness of this new method has been verified with different kinds of antibiotics, such as enrofloxacin, levofloxacin, and ceftriaxone, having different antibacterial mechanisms.

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On the complexity of curve fitting algorithms

Cited by 14 publications

References 13 publications

FPGA-Based Bit Error Rate Performance Measurement of Wireless Systems

FPGA-Based Bit Error Rate Performance Measurement of Wireless Systems

Non-supervised image segmentation based on multiobjective optimization

A novel approach for assessing the susceptibility of Escherichia coli to antibiotics

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