Rotating Parabolic-Reflector Antenna Target in SAR Data: Model, Characteristics, and Parameter Estimation

Table 1

SAR and RPRA’s parameters.

Bandwidth	400 MHz	Reference range 𝑋𝑐	10000 m
Central frequency 𝑓𝑐	10 GHz	PRA’s focus parameter 𝑃	9 m
Slant angle 𝜃𝑐	0	Diameter of the PRA’s aperture 𝐷	6 m
CPI	8.7 s	PRA rotating frequency 𝑓𝑚	0.1~0.3 Hz
Airplane velocity 𝑉𝑎	200 m/s	𝜙𝑐	𝜋/4
Angular extent	10°	𝛾0	𝜋