Design and optimization of radio frequency stealth signal based on SAGA

A good stealth performance of radio frequency (RF) signals is very important for fighters in order to have high penetration capacity, survivance capacity and combat effectiveness in an electronic warfare. Some design principles of RF stealth signals are proposed in this paper. In the light of design principles, hopping-frequency signals were proved to having the good RF stealth performance. The simulated annealing genetic algorithm (SAGA) was used to design hopping codes based on the maximal sidelobe level criterion. The performance of frequency-hopping signals was verified by experimental simulations.