Doppler differential velocity model and method for combined navigation by using doppler differential velocity model and X-ray pulsar
A Doppler velocity and Doppler technology, applied in the field of autonomous navigation of deep space probes, can solve problems such as deviation of navigation speed measurement information, affecting the performance of integrated navigation systems, and instability of the solar spectrum
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[0056] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.
[0057] In this embodiment, the orbit of the Mars probe is firstly given, as shown in Table 1.
[0058] Table 1 Initial Orbital Parameters
[0059]
[0060] please see figure 1 , the embodiment provides a Doppler differential velocity measurement model, first assuming that the deep space probe is at t 1 The positions at time and time t are respectively r 1 and r, Mars at t 1 The position and velocity at time instant are r M and v M , two spectrometers are mounted on the deep space probe, the first spectrometer is at t 1 Measure the spectral frequency...
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