Doppler Shift on a Spacecraft Link (space-systems/subsystems/doppler-shift)

Use when you must compute the doppler frequency shift on a spacecraft link: derive the line-of-sight range rate from the circular-orbit altitude and the ground elevation angle, convert it to the received frequency and offset on an s-band downlink carrier, and estimate the worst-case doppler near the horizon and the doppler-rate at acquisition for receiver acquisition design. Produces the range rate, received frequency, delta-f offset, maximum doppler, slant range and doppler rate that gate communication link acquisition. Trigger: doppler shift, received frequency offset, acquisition frequency offset, worst-case doppler, doppler rate, line-of-sight range rate, s-band downl…