Generalized Image Navigation and Registration Method Based on Kalman Filter

Generalized Image Navigation & Registration Algorithms for Ground and Space Segments

“…Kalman filter near real-time operation allows fast delivery of level 1B data blocks and LRIT/HRIT subimages (instead of a whole image) to users. COMS simulations 6) demonstrated that the fundamental algorithm meets the 56 microradians navigation requirement with margin.…”

“…� � = sidereal earth rotation rate = 7.2921159E-05 rad/sec. 6,15,16) These were originally used by Kamel 1) for GOES I-M 16) to represent actual orbit deviation from ideal geostationary orbit produced by spherical earth with no perturbations. In this paper, these parameters are determined by KF or by a combination of FDS orbit and refinement by KF.…”

“…The original INR invention became the foundation for subsequent GOES and similar systems worldwide. [2][3][4][5][6] The INR system requirements have been tightened as the spacecraft and ground systems hardware has been improved. [7][8][9][10][11][12] For example, the three sigma GOES N-P and COMS navigation requirements were tightened to 56 microradians and GOES-R navigation requirement was tightened to 21 microradians.…”

“…H �� is due to (x �� , x� �� ) of SV ma in Eqs (1). and(6) to(8) For single mirror instruments, m=2x �� � � δϕ �� δθ �� � ��C �� , C �� � � �S � , C � /C � �, �C �� , C �� � � �C � , �S � /C � �Note that x� ���� in Eq. (31) compensates for gyro drift effect on SV � ��� of Eq.…”