The search for binary sequences with low paper, we present a computational approach that uses peak sidelobe level value represents a formidable computational a stochastic algorithm. To locate better sequences for this our approach cannot provide optimal solutions but in a problem, we designed a stochastic algorithm that uses reasonable time we can locate optimal or near-optimal two fitness functions. Therefore, our approach is also suitable for of the autocorrelation function has a different impact on solving larger instances of the problem. It is defined with the value of the of length L in our problem is defined as follows: exponent over the autocorrelation function values. The main goal of a binary sequences problem with low peak sidelobe level is to find an optimal sequence that has the minimal PSL value, as shown in Eq. (4). 1 Introduction The binary sequences with low peak sidelobe level value S In this sequences with length L. From Eq. (1) it is evident that the number of sequences with length L is 2 The exhaustive search was also applied under the restriction The remainder of the paper is organized as follows. of m-sequence [7].

The idea of sensitivity in ant colony systems has been exploited in hybrid ant-based models with promising results for many combinatorial optimization problems. Heterogeneity is induced in the ant population by endowing individual ants with a certain level of sensitivity to the pheromone trail. The variable pheromone sensitivity within the same population of ants can potentially intensify the search while in the same time inducing diversity for the exploration of the environment. The performance of sensitive ant models is investigated for solving the generalized vehicle routing problem. Numerical results and comparisons are discussed and analysed with a focus on emphasizing any particular aspects and potential benefits related to hybrid ant-based models.