نتایج جستجو برای: cosine function

تعداد نتایج: 1223040  

Journal: :International Journal of Interactive Multimedia and Artificial Intelligence 2021

2016
Kalyan Mondal Mumtaz Ali Surapati Pramanik Florentin Smarandache

This paper presents some similarity measures between complex neutrosophic sets. A complex neutrosophic set is a generalization of neutrosophic set whose complex-valued truth membership function, complex-valued indeterminacy membership function, and complex valued falsity membership functions are the combinations of realvalued truth amplitude term in association with phase term, real-valued inde...

Journal: :Research in mathematics 2023

The relevance of trigonometric distributions in modeling datasets is gaining a lot interest recent times because their many desirable properties. This paper contributes to the area by introducing new family called cosine Topp–Leone combining cosine-G and generated distributions. statistical properties such as quantile function, moments, moment generating functions, incomplete mean residual life...

2015
S. Woo K. Chae H. Liu S. Yoon

This paper addresses a novel cosine-phased binary offset carrier (BOC) signal tracking, enabling an unambiguous signal tracking. Two novel locally-generated signals are first obtained by dividing the cosine-phased BOC sub-carrier into multiple parts, and then, cross-correlations between each of the locally-generated signals and the received signal are generated. Finally, the cross-correlations ...

Journal: :Periodica Polytechnica-civil Engineering 2021

This study introduces an effective hybrid optimization algorithm, namely Particle Swarm Sine Cosine Algorithm (PSSCA) for numerical function and automating optimum design of retaining structures under seismic loads. The new algorithm employs the dynamic behavior sine cosine functions in velocity updating operation particle swarm (PSO) to achieve faster convergence better accuracy final solution...

2008
Praseeda Lekshmi V Dr. M. Sasikumar

Facial recognition and expression analysis is rapidly becoming an area of intense interest in computer science and humancomputer interaction design communities. The most expressive way humans display emotions is through facial expressions. In this paper skin and non-skin pixels were separated. Face regions were extracted from the detected skin regions. Facial expressions are analyzed from facia...

Journal: :Digital Signal Processing 2006
Alok Jain Rajiv Saxena S. C. Saxena

In this paper, a simple and efficient design of prototype filters for cosine-modulated filterbanks is proposed. Variable combinational window function with high side-lobe-fall-off-rate (SLFOR) has been used to design the prototype filter for cosine-modulated filterbanks. Cutoff frequency of the filter is optimized to minimize the reconstruction error, which is also selected as an objective func...

2012
Jyotsna Ogale Alok Jain

In this paper newly reported Cosh window function is used in the design of prototype filter for M-channel Near Perfect Reconstruction (NPR) Cosine Modulated Filter Bank (CMFB). Local search optimization algorithm is used for minimization of distortion parameters by optimizing the filter coefficients of prototype filter. Design examples are presented and comparison has been made with Kaiser wind...

Journal: :IEEE Trans. Signal Processing 1996
Luc Knockaert

A general approach to arithmetic Fourier transforms is developed. The implementation is based on sine and cosine killer procedures pertaining to a generalized Möbius transform involving reduced periodic multiplicative arithmetical functions. It is shown that cosine killer procedures exist whenever one half of Euler’s totient function of the order of the transform is odd. Primitive roots and ind...

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