Abstract:With the development of the blind detection technology in the area of wireless communication, security issues of traditional Direct Sequence Spread Spectrum (DSSS) system can be no longer ignored. Therefore, Code-Hopping (CH) DSSS system, which is a fire-new spread spectrum system, is put forward. In this paper, chaotic sequence, with its highly good initial value sensitivity, random characteristics as well as correlated characteristics, is used to generate hopping code pattern and spreading code, so that the anti-jamming performance and intercept resistance of the CH DSSS communication system is improved considerably. Here, we design a chaotic CH DSSS communication system. MATLAB-based simulation is conducted to compare the correlation properties of chaotic sequences and M sequences and to analyze communication performance, anti-jamming performance and intercept resistance of the chaotic CH DSSS communication system. Simulation results reveal that the system, which performs better than the traditional ones, can be vigorously developed in the field of anti-reconnaissance communication.