Using genetic algorithms in dealing with nonlinear problems in measurement,the number of population size,the number of parameters of individual and the ranges of parameters will affect the efficiency of the algorithm.For the problems with simple genetic algorithm to deal with nonlinear cases,including easy to fall into local optimum,slow and small convergence zone and so on,this paper used a new crossover strategy,and made the steps of mutation operator adaptive change.Finally,an example proved that the imp...