A Shared Waveform Design for Integrated Detection and Jamming Signal Based on LFM-Costas Intra-pulse Frequency Stepping

The integrated detection and jamming signal, which can realize radar detection and jamming functions at the same time, is becoming more and more important today when multifunctional integrated RF systems are of great interest. In this paper, we propose an integrated signal with Costas coding of the intra-pulse frequency of LFM signal. The integrated signal has an ideal ambiguity function of pin type and is capable of causing varying degrees of coherent jamming to the enemy's LFM signal. According to the principle of time-domain matched filtering, we deduce the false target group form of this signal at enemy. Then the jamming performance of this signal is deduced and analyzed according to the difference of Costas sequences. Finally, the theoretical derivation and analysis of the jamming effect of this signal are verified by the simulation results.