Adaptive algorithm for solving different types and different precisions and nonlinear surveying and mapping parameters adjustment
(1.Shandong University of Science and Technology, Tai’an 271019, China2.Shandong Agriculture University, Tai’an 271018, China3.Department of Territory Information and Surveying Engineering, Xuzhou Normal Universit, Xuzhou 221009, China)
Abstract: Approximate linear methods and nonlinear methods were adopted usually for solving models of nonlinear surveying and mapping parameters adjustment. But, these iterative algorithms need to compare harsh initial value. A kind of new algorithm-adaptive algorithm based on analyzing the general methods was put forward. The new algorithm has quick rate of convergence and low dependence for initial value, so it can avoid calculating complex second derivative of the target function. The results indicate that its performance is better than those of the others.
Key words: parameters adjustment； least square method； adaptive algorithm