New Jamming Technology To Spread Spectrum Radar

Spread spectrum radar (SSR) has the characteristics of the wide band, high resolution, low probability of intercept (LPI), strong anti-jamming and so on. So, it is insufficient to take advantage of traditional jamming. Some jamming forms against Spread Spectrum Radar, such as convolutive modulation noise jamming, band match jamming, sub band jamming, sub band frequency hopping jamming, slope disturbing jamming and so on are showed in this paper based on the study on SSR's theory and performance. Moreover, taking spread spectrum LFM signal as example, the simulation on capacity of interference achieve comparatively performance.In the work, we propose a project generating the waveform of SSR according to DSP+FPGA+DDS, as well as the system construction of SSR jamming waveform, where hardware construction, performance index and the usage of them are presented. Comparison with analog way, the proposed system has not only higher flexibility but lower complexity. Last but not least, we also show the impulse compression result by using some jamming presented above, and artificial object: movement or not. Through testing, we find that these new jamming waveforms have effectual jamming effect.