A Long-Term Integration Method Based on Wideband Stretch Processing

According to the problem of target range migration through resolution cells in a long-term integration, a long-term coherent integration method is proposed to maintain the detection sensitivity of the radar. It makes use of the cued velocity for a coarse velocity compensation, and then Keystone transform is adopted for the completion of the migration compensation. The coherent integration is finally carried out by Doppler processing. Computer simulation results showed the effectiveness of the proposed method.