Cascaded chaotic sequence mapping method and system for frequency hopping communication system

The invention discloses a cascaded chaotic sequence mapping method and system for a frequency hopping communication system. The method comprises the following steps: setting iteration parameters of a first-stage chaotic sequence and a second-stage chaotic sequence; the iteration parameters comprise a Prandtt number, a Rayleigh number, a direction ratio, a fractal parameter and an iteration initial value; generating a first-stage chaos sequence and a second-stage chaos sequence under two different initial value iterations through the first-stage chaos model and the second-stage chaos model; taking each iteration value generated by the first-stage chaos sequence as an initial value required by iteration of a second-stage chaos model so as to perform cascading, and generating a cascading variable parameter chaos sequence; carrying out time sequence scrambling on the cascaded variable parameter chaotic sequence, carrying out Hash transformation on the scrambled sequence, and then carrying out compression mapping