FIR, IIR and Wavelet Algorithms for the Rigorous Filtering of GOCE SGG Data to the GOCE MBW

نویسندگان

چکیده

Gravity field and steady-state Ocean Circulation Explorer (GOCE) data are strongly affected by noise long-wavelength errors outside the satellite measurement bandwidth (MBW). One of main goals in utilizing GOCE for gravity modeling is application filtering techniques that can remove gross reduce low-frequency high-frequency while preserving original signal. This paper aims to present analyze three strategies used de-noise Level 2 from correlated noise. These Finite Impulse Response (FIR), Infinite (IIR), Wavelet Multi-resolution Analysis (WL), which have been applied residual second order derivatives potential. Several experiments were performed each scheme identify ideal parameters. The outcomes indicate all suggested proved be effective removing signals MBW, with FIR providing overall best results.

برای دانلود باید عضویت طلایی داشته باشید

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Error assessment of GOCE SGG data using along track interpolation

GOCE will be the first satellite gravity mission measuring gravity gradients in space using a dedicated instrument called a gradiometer. High resolution gravity field recovery will be possible from these gradients. Such a recovery requires a proper description of the gravity gradient errors, where the a priori error model is for example based on end-to-end instrument simulations. One way to tes...

متن کامل

GOCE SGG and SST quick-look gravity field analysis

The purpose of quick-look analysis in the framework of the GOCE data processing architecture is to analyse partial data sets of satellite gravity gradiometry (SGG) and satellite-to-satellite tracking in high-low mode (hl-SST), in order to derive a diagnosis of the system performance. The semi-analytic (SA) method for gravity field recovery from GOCE observations, which is based on Fast Fourier ...

متن کامل

On the joint inversion of SGG and SST data from the GOCE mission

The computation of spherical harmonic coefficients of the Earth’s gravity field from satellite-to-satellite tracking (SST) data and satellite gravity gradiometry (SGG) data is considered. As long as the functional model related to SST data contains nuisance parameters (e.g. unknown initial state vectors), assembling of the corresponding normal matrix must be supplied with the back-substitution ...

متن کامل

GOCE and the geoid

Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Printer-friendly Version Interactive Discussion EGU Abstract A review is given of the geodetic concepts necessary for oceanographers to make use of satellite gravity data to define the geoid, and to interpret the resulting produ...

متن کامل

Local gravity field continuation for the purpose of in-orbit calibration of GOCE SGG observations

The use of ground gravity data in wellsurveyed areas, continued upward to satellite altitude, is one of the most promising external absolute in-orbit calibration/validation methods for GOCE satellite gravity gradient (SGG) observations. Based on a synthetic gravity test environment – providing in addition to statistical error information also absolute error estimates – several upward continuati...

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

ژورنال

عنوان ژورنال: Remote Sensing

سال: 2022

ISSN: ['2315-4632', '2315-4675']

DOI: https://doi.org/10.3390/rs14133024