Abstract
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.