Frequency Domain Identification of Continuous-Time ARMA Models: Interpolation and Non-uniform Sampling

نویسندگان

  • Jonas Gillberg
  • Lennart Ljung
چکیده

In this paper is discussed how to estimate irregularly sampled continuous-time ARMA models in the frequency domain. In the process, the model output signal is assumed to be piecewise constant or piecewise linear, and an approximation of the continuous-time Fourier transform is calculated. ML-estimation in the frequency domain is then used to obtain parameter estimates.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Frequency-Domain Identification of Continuous-Time Output Error Models from Sampled Data

This paper treats identification of continuous-time output error (OE) models based on sampled data. The exact method for doing this is well known both for data given in the time and frequency domains. This approach becomes somewhat complex, especially for non-uniformly sampled data. We study various ways to approximate the exact method for reasonably fast sampling. While an objective is to gain...

متن کامل

Frequency-domain identification of continuous-time ARMA models from sampled data

This paper treats direct identification of continuous-time autoregressive moving average (CARMA) noise models. The approach has its point of origin in the frequency domain Whittle likelihood estimator. The discreteor continuoustime spectral densities are estimated from equidistant samples of the output. For low sampling rates the discrete-time spectral density is modeled directly by its continu...

متن کامل

Attenuation of spatial aliasing in CMP domain by non-linear interpolation of seismic data along local slopes

Spatial aliasing is an unwanted side effect that produces artifacts during seismic data processing, imaging and interpolation. It is often caused by insufficient spatial sampling of seismic data and often happens in CMP (Common Mid-Point) gather. To tackle this artifact, several techniques have been developed in time-space domain as well as frequency domain such as frequency-wavenumber, frequen...

متن کامل

Frequency-Domain Identification of Continuous-Time Output ErrorModels Part I - Uniformly Sampled Data and Frequency Function Estimation , Report no. LiTH-ISY-R-2986

This paper treats identi cation of continuous-time output error (OE) models based on sampled data. The exact method for doing this is well known both for data given in the time and frequency domains. This approach becomes somewhat complex, especially for non-uniformly sampled data. We study various ways to approximate the exact method for reasonably fast sampling. While an objective is to gain ...

متن کامل

Frequency-Domain Identification of Continuous-Time Output Error Models from Non-Uniformly Sampled Data

This paper treats the identification of continuous-time output error (OE) models based on sampled data. The exact method for doing this is well known both for data given in the time domains, but this approach becomes somewhat complex, especially for non-uniformly sampled data. In this paper we assume that the system is fed with a zero order hold input signal and that the sampling rate is so hig...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005