Predictors for High Frequency Signals Based on Rational Polynomial Approximation of Periodic Exponentials
نویسندگان
چکیده
The paper presents linear integral predictors for continuous time high-frequency signals with a finite spectrum gap. are based on approximation of complex valued periodic exponential (complex sinusoid) by rational polynomials.
منابع مشابه
application of upfc based on svpwm for power quality improvement
در سالهای اخیر،اختلالات کیفیت توان مهمترین موضوع می باشد که محققان زیادی را برای پیدا کردن راه حلی برای حل آن علاقه مند ساخته است.امروزه کیفیت توان در سیستم قدرت برای مراکز صنعتی،تجاری وکاربردهای بیمارستانی مسئله مهمی می باشد.مشکل ولتاژمثل شرایط افت ولتاژواضافه جریان ناشی از اتصال کوتاه مدار یا وقوع خطا در سیستم بیشتر مورد توجه می باشد. برای مطالعه افت ولتاژ واضافه جریان،محققان زیادی کار کرده ...
15 صفحه اولA method to obtain the best uniform polynomial approximation for the family of rational function
In this article, by using Chebyshev’s polynomials and Chebyshev’s expansion, we obtain the best uniform polynomial approximation out of P2n to a class of rational functions of the form (ax2+c)-1 on any non symmetric interval [d,e]. Using the obtained approximation, we provide the best uniform polynomial approximation to a class of rational functions of the form (ax2+bx+c)-1 for both cases b2-4a...
متن کاملPolynomial Time Approximation Algorithms for Localization Based on Unknown Signals
We consider the problem of anchor-free self-calibration of receiver locations using only the reception time of signals produced at unknown locations and time points. In our settings the receivers are synchronized, so the time differences of arrival (TDOA) of the signals arriving at the receivers can be calculated. Given the set of distinguishable time points for all receivers the task is to det...
متن کاملHigh order approximation of rational curves by polynomial curves
We show that many rational parametric curves can be interpolated, in a Hermite sense, by polynomial curves whose degree, relative to the number of data being interpolated, is lower than usual. The construction unifies and generalizes the families of circle and conic approximations of Lyche and Mørken and the author in which the approximation order is twice the degree of the polynomial.
متن کاملOn approximation by exponentials
We consider an approximation of L 2 0; 1) functions by linear combinations of exponentials fexp(? ` t)g. Having derived explicitly by Fourier transform techniques an orthogonal basis of exponentials, we specialize the discussion to the choicè = q ` , ` = 0; 1; : : :, where q 2 (0; 1). In that case the underlying orthogonal functions possess a particularly appealing form and they obey interestin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Problems of Information Transmission
سال: 2022
ISSN: ['0032-9460', '1608-3253']
DOI: https://doi.org/10.1134/s003294602204007x