HJ-1C is a component of HJ satellites which are developed in China.HJ-1C SAR has a frequency of S-band

VV polarization

and incidence angle from 25°—47°.Based on configuration parameters of HJ-1C and SAR sensor

image simulation was performed using high-resolution DEM（30m） and classification data（20m） in this paper

combining geometrical and radiometric characters of SAR image.This work will give us a primary impression on HJ-1C products before the satellite being launched.Furthermore

the simulated image will benefit to the design and validation of sensor system

image interpretation and new algorithms test

etc.