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- W2387496622 abstract "Doppler centroid frequency influences the azimuth ambiguities and the location accuracy directly.Total zero Doppler steering method isused to reduce the Doppler centroid frequency to 0Hz by adjusting the yaw and pitch,but residual Doppler centroid frequency still exists.In the paper,the Doppler centroid frequency expression based on elliptical orbit is derived analytically.The Doppler centroid frequency is divided into two parts: one part is related to only pitch,and the other part is related to both yaw and pitch.Assume the two parts are both equal to zero.The pitch angle is calculated firstly,and then the yaw angle is concluded.The residual Doppler centroid frequency is almost 0Hz.The TerraSAR-X satellite parameters are used in the simulation.The simulation results indicate that the residual Doppler centroid frequency is about 0.03Hz,which is much smaller than that of the instantaneous circular orbit total zero Doppler steering,so the new method completes total zero Doppler steering effectively." @default.
- W2387496622 created "2016-06-24" @default.
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- W2387496622 date "2011-01-01" @default.
- W2387496622 modified "2023-09-24" @default.
- W2387496622 title "Study on SAR Total Zero Doppler Steering Method Based on Elliptic Orbit" @default.
- W2387496622 hasPublicationYear "2011" @default.
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