Prediction method for satellite orbit
A technology of satellite orbit and prediction method, applied in the direction of integrated navigator, etc., can solve the problems of clock error, real-time orbit determination error of global navigation satellite system, and inaccurate satellite orbit prediction.
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[0013] The technical solution of the present invention will be further described in detail below according to the drawings in the description and in combination with specific embodiments.
[0014] see figure 1 , S1~S5 are traditional navigation satellites, they are mid-orbit navigation satellites, and the working orbit altitude is generally 20,000 kilometers. There is a low-orbit navigation star L1, the working orbit is not higher than 3000 kilometers, and it can transmit navigation signals. A user terminal U1 achieves positioning by receiving signals from the low-orbit navigation star L1 and traditional navigation satellites S1~S5. In this system, in order to improve the navigation accuracy, it is required that the accuracy of the low-orbit navigation star L1 is as high as possible.
[0015] Please also refer to figure 2 , figure 2 The flow chart of satellite orbit prediction method provided by the present invention mainly includes the following steps:
[0016] Step S1...
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