TY - GEN
T1 - Performance analysis of Kalman filters for Doppler centroid estimation
AU - Steinbrecher, Ulrich
AU - Bamler, Richard
AU - Runge, Hartmut
AU - Loffeld, Otmar
PY - 1991
Y1 - 1991
N2 - The problem of estimating time-invariant Doppler centroid frequencies from SAR (synthetic aperture radar) data is addressed. In particular, the X-SAR (X-band SAR) sensor on the space shuttle is investigated. To improve Doppler centroid estimates obtained from small azimuth segments by a Kalman smoother along the track direction, a shuttle attitude model is developed to generate typical Doppler centroid histories. These histories are disturbed by the assumed estimation errors before they enter the Kalman smoother under test. Simulated Doppler estimates are shown together with the results obtained by Kalman smoothers with different tuning parameters.
AB - The problem of estimating time-invariant Doppler centroid frequencies from SAR (synthetic aperture radar) data is addressed. In particular, the X-SAR (X-band SAR) sensor on the space shuttle is investigated. To improve Doppler centroid estimates obtained from small azimuth segments by a Kalman smoother along the track direction, a shuttle attitude model is developed to generate typical Doppler centroid histories. These histories are disturbed by the assumed estimation errors before they enter the Kalman smoother under test. Simulated Doppler estimates are shown together with the results obtained by Kalman smoothers with different tuning parameters.
UR - http://www.scopus.com/inward/record.url?scp=0026382798&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0026382798
SN - 0879426756
T3 - Digest - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 1059
EP - 1063
BT - Digest - International Geoscience and Remote Sensing Symposium (IGARSS)
A2 - Anon, null
PB - Publ by IEEE
T2 - 1991 International Geoscience and Remote Sensing Symposium - IGARSS'91
Y2 - 3 June 1991 through 6 June 1991
ER -