A New Design Method for Anti-Interception Waveform

The waveform designed using the method of Strong Signal Masking Direct Sequence Spread Spectrum (SSM-DSSS) signal has satisfying anti-interception capabilities, but the power cost of strong signal is high. To reduce the required power cost of strong signal, a new design method for anti-interception waveform is proposed, which combines the strong signal masking technology with the variable parameter spread spectrum hopping technology. The low power useful signal is designed using the variable parameter spread spectrum hopping technology, which can eliminate the cyclostationary characteristics of the direct sequence spread spectrum signal, and then the strong power signal is used to mask the low power useful signal, finally the designed anti-interception signal is produced. The interception factor and interception probability are used to evaluate the anti-interception performance of the designed waveform. The simulation results show that the designed waveform has smaller in-terception factor and lower interception probability than the SSM-DSSS waveform, which can reduce the required power of the strong signal while ensuring better anti-interception performance.