Jamming spread spectrum waveforms

It is in the time domain that significant differences in jamming effects are to be seen between conventional and spread spectrum radar waveforms. A conventional radar pulse has a time-bandwidth product of around unity whereas a spread spectrum pulse has a time-bandwidth product typically in the range 10 to 100. This paper considers two types of spread spectrum waveform, the linear frequency chirp and 13 bit Barker phase code, both of which are commonly used in modern radars. The results presented in this paper are also applicable to variants of these waveforms, for example non-linear chirps and longer, poly-phase codes