The discussion revolves around understanding the three-dimensional Doppler shift experienced between two satellites orbiting the Earth at different velocities and altitudes. Participants explore how to calculate the Doppler shift when one satellite sends a signal to the other, considering factors such as relative velocity and gravitational effects.
Participants do not appear to reach a consensus on the exact method for calculating the Doppler shift, as there are multiple considerations and factors discussed, indicating ongoing exploration and debate.
Participants mention the importance of the relative angle between vectors and the gravitational redshift factor, suggesting that assumptions about these parameters may affect the calculations. There is also an indication that more detailed information about the participants' existing knowledge could facilitate better responses.
It is not sufficient to know the relative speed. The Doppler factor also depends on the relative angle between the velocity vector and displacement vector. For example, the transversal Doppler effect is just a gamma factor.Ibix said:Work out the velocity of one satellite with respect to the other, calculate the Doppler factor from the speed, and multiply by the gravitational redshift factor.