Abstract:

 Among the radar target identification field, 3D images of the target’s shape can give the most direct and useful information for identifying the target. A low frequency method, named as the Ramp response technique, is widely used for radar target imaging. Quality of the reconstructed image is mainly related to the performance of the image reconstruction algorithm. Therefore, two classical reconstruction algorithms, which are based on Ramp response technique,  were  introduced. Simulation and comparison between the two algorithms were made under different conditions. A new algorithm for calculating profile functions from a reconstructed image was proposed and performance evolution based on the errors of profile function was presented and considerable conclusions were drawn.

Key words: radar target identification, Ramp response, 3D image reconstruction, profile function