PS Selection Method for and Application to GB-SAR Monitoring of Dam Deformation

Table 1

Basic information of dam deformation monitoring data collection.

Antenna type	Gain	20 dBi
	Polarization mode	VV
Signal type	Frequency band and wavelength	Ku/1.78 cm
	Bandwidth	300 M (17.05 GHz–17.35 GHz)
	Step frequency	57.703 kHz
Synthetic aperture length		2 m
In-orbit moving step of the sensor		5 mm
Resolution	Range	0.5 m
	Azimuth	4.4 mrad
Maximum monitoring distance setting		1300 m
Average duration of collection of a single-scene image		5.3833 min