Study on Zero-Doppler Centroid Control for GEO SAR Ground Observation

Table 1

System parameters of GEO SAR.

Specification	Value
Semimajor axis	42220000 m
Orbit inclination	60 degrees
Orbit eccentricity	0.02
Argument of perigee	90 degrees
Right ascension of ascending node	40 degrees
Look angle	2.5 degrees
Beam width	0.48 degrees
Signal wavelength	0.25 m
Antenna diameter	30 m
Pulse repetition frequency	250 Hz