Orbital motion in the frequency domain
Abstract
This paper presents an analysis of orbit mechanics in the frequency domain using the theory of the discrete Fourier transform. The discrete Fourier transform and other selected signal processing techniques are used to numerically identify the parameters required to represent orbital periodic variations. The numerical results obtained in the frequency domain are transformed back to the time domain for the purpose of expressing orbital motion in analytic form. Concepts, numerical procedures and results are summarized. The numerically determined first-order, short-periodic variations for the inclination angle of a sample orbit are compared with known analytic resutls. Preliminary findings demonstrate the validity of the concept and encourage further investigation.
- Publication:
-
Astrodynamics 1985
- Pub Date:
- August 1986
- Bibcode:
- 1986asdy.conf...13S
- Keywords:
-
- Fourier Transformation;
- Orbital Mechanics;
- Fast Fourier Transformations;
- Frequency Response;
- Orbital Elements;
- Parameter Identification;
- Periodic Variations;
- Perturbation Theory;
- Signal Processing;
- Astrodynamics