In this thesis, the data acquisition system and subsystems of an imaging radar are implemented and a topographic mapping of terrestrial surface is obtained. The transmitter and receiver of Gold Star Precision Co. radar yields its peak power 10KW at 9410MHz. The data acquisition system consists of FIFO, A/D converter and subcircuits. The sampling frequency is chosen 16MHz in order to process video signal of 6MHz. The data acquisition system is implemented to handle 512 bytes for the mapping range of 4.8Km corresponding to 32$\mu$ s interval. The radar system is set up at the height of 200m and reflections from the urban areas and mountains are measured. In order to synthesize the mapping area of azimuth direction, stepped motor is rotated at 0.144° step in the direction of azimuth and the total number of step is 512. Therefore, one image plane is composed of $512\times512$ pixels, and range and cross range resolutions are obtained about 15m and 100m, respectively.
