Journal of Projectiles, Rockets, Missiles and Guidance >
A Method Employed Firing Data for Estimating Doppler Frequency Shift of GPS Signal
Received date: 2013-01-16
Online published: 2025-05-26
To quickly capture the GPS signal of projectile, Using the star calendar and fringe date to calculation the relative position and relative speed of the satellite and projectile, and then transitioning them into the same coordinate of WGS-84, according to the concept of vector dot product to estimate the Doppler frequency shift, realized rapid positioning of hypervelocity carrier. Error analysis demonstrates that the estimated error can be restricted to 500 Hz even in the worst cases, which within the scope of capture.
Key words： Doppler frequency shift; GPS signal estimate; ballistics
HE Ying , YANG Xinmin , JING Haibin , DAI Mingxiang . A Method Employed Firing Data for Estimating Doppler Frequency Shift of GPS Signal[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2013 , 33(6) : 19 -22 . DOI: 10.15892/j.cnki.djzdxb.2013.06.020
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