A novel LPI radar signal based on hyperbolic frequency hopping combined with Barker phase code

In this paper we address the problem of low probability of intercept (LPI) techniques. Previous LPI signals are first reviewed, and then the characteristic of frequency hopping techniques and barker phase code is investigated. A new LPI signal called PR-FH is bring forward by combining the Barker sequences and hyperbolic frequency hop code and compared with the PSK Costas-Frequency Hopping signal. Auto- and cross-ambiguity functions are used to research the characteristics of PR-FH, the result shows that the novel waveform has low cross correlation and good resolution of both range and Doppler.