Smart Binary Phase-Coding With Doppler Compensation: An Electronic Protection Technique Against Repeater Jamming

Abstract

Today, modern radar systems increase their target detection capabilities by processing pulses coherently. If these radars do not take precautions against the Doppler frequency shift caused by the moving target, their performance will decrease. In addition, if these radars do not change their parameters from pulse to pulse, modern jammers will cause them to produce false alarms. In this article, we add Doppler compensation capability to the smart binary phase-coding (SBPC) method. The proposed SBPC-Doppler method is recommended to facilitate radar detection of moving targets and suppress repetitive range deception techniques. In the simulations, the traditional approach in which the same code is used without changing from pulse to pulse, and the approaches using code sets obtained by the old SBPC and the new SBPC-Doppler methods in intrapulse modulation are compared. The results show that the proposed SBPC-Doppler method can significantly improve the isolation against deception jamming and the moving target detection capability simultaneously.