نتایج جستجو برای: minimummaximum autocorrelation factors

تعداد نتایج: 1088031  

Journal: :The Annals of Regional Science 2018

2006
Maksym Kryvohuz Jianshu Cao

The semiclassical expression for the momentum autocorrelation function of a particle in a one-dimensional box is analyzed. The classical autocorrelation function is shown to be the first term of the semiclassical series. Systematical inclusion of all the terms restores quantum recurrence of the momentum autocorrelation function. 2005 Elsevier B.V. All rights reserved.

Journal: :I. J. Network Security 2017
Ruifang Meng Tongjiang Yan

The autocorrelation of a key stream sequence in a stream cipher is an important cryptographic property. This paper proposes two constructions of binary interleaved sequences of period 4N by selecting appropriate shift sequences, subsequences and complement sequences. And the autocorrelation functions of new sequences are given. The results show that these sequences have low autocorrelation unde...

Journal: :International Journal of Geographical Information Science 2009
Bo Huang Li Zhang Bo Wu

Understanding the complexity of urban expansion requires an analysis of the factors influencing the spatial and temporal processes of rural-urban land conversion. This study aims at building a statistical land conversion model to assist in understanding land use change patterns. Specifically, GIS coupled with a logistic regression model and exponential smoothing techniques is used for exploring...

2012
Mohsen Ali-Akbarpour Abolfazl Mohammadbeigi Seyed Hamid Reza Tabatabaee Gholamreza Hatam

BACKGROUND Despite the advances in the diagnosis and treatment of leishmaniasis, it is still considered as a severe public health problem particularly in developing countries and a great economic burden on the health resources. The present study was designed and conducted to determine the eco-environmental characteristics of the leishmaniasis disease by spatial analysis. MATERIALS AND METHODS...

Journal: :IEEE Trans. Speech and Audio Processing 2001
Tetsuya Shimamura Hajime Kobayashi

In this paper, we propose a modified version of the autocorrelation pitch extraction method well known to be robust against noise. Utilizing that the average magnitude difference function (AMDF) has similar characteristics with the autocorrelation function, the autocorrelation function is weighted by the reciprocal of the AMDF. By simulation experiments, it is shown that the proposed pitch extr...

2001
DANIEL W. APLEY FUGEE TSUNG

I N recent years, statistical process control (SPC) for autocorrelated processes has received a great deal of attention, due in part to the increasing prevalence of autocorrelation in process inspection data. With improvements in measurement and data collection technology, processes can be sampled at higher rates, which often leads to data autocorrelation. It is well known that the run length p...

2001
John FITTS

Failure to allow for autocorrelation of the disturbances in a regression model can lead to biased and inconsistent parameter estimates, particularly if the model is autoregressive. While consistent estimation methods are available which allow for autocorrelation, estimation is usually much easier when there is some assurance that autocorrelation is absent. In pursuit of such assurance the prese...

Journal: :Monte Carlo Meth. and Appl. 2004
Jean-Luc Akian Bénédicte Puig

In a first part is recalled a simulation method for a strictly stationary non-Gaussian process given its one-dimensional marginal distribution (or its -first statistical moments) and its autocorrelation function. This method was already widely treated in the articles [14] and [13]. The objective of the present paper is twofold : firstly simplify this method when by Mehler formula it is possible...

Journal: :Remote Sensing 2017
Alessandro C. Mondini

Landslides cause damages and affect victims worldwide, but landslide information is lacking. Even large events may not leave records when they happen in remote areas or simply do not impact with vulnerable elements. This paper proposes a procedure to measure spatial autocorrelation changes induced by event landslides in a multi-temporal series of synthetic aperture radar (SAR) intensity Sentine...

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