A New Cuckoo Search and Its Application of Spread Spectrum Radar Polly Phase Code Design

The Lévy flight was used in cuckoo search to achieve good optimization performance. Although the optimization performance of cuckoo search algorithm is good based on the Lévy flight some complicated mathematical operations should be used to realize the Lévy flight such as trigonometric function, gamma function and exponential functions, which limited the application of the cuckoo search algorithm especially there is high requirement about computation complex like in the embedded systems. The Lévy flight is replaced by a simple uniform distribution function based on the randomly chosen dimension and a local search method is applied to improve the optimization performance although the general structure of cuckoo search algorithm is not changed. The proposed cuckoo search algorithm is applied to several benchmark functions and the simulation results show the simplified cuckoo search algorithm can achieve better optimization performance than the original cuckoo search algorithm. Finally the simplified cuckoo search algorithm is applied to the spread spectrum radar Polly phase code design.