The invention discloses a choosing method for a multi-point positioning location solution in the complex scene environment. The choosing method is mainly in charge of calculation of TDOA of a multi-point
positioning system in the complex and actual scene environment to the target positioning location and the self-inspection output function of the positioning location. According to the main principle, follow-up
processing and choosing operation are conducted on a positioning result by judging whether a chan's multi-point positioning
algorithm two-step location
estimation residual error sample conforms to probability distribution in the normal
noise level or not; if yes, the current positioning result is directly output; if not, all the
station points are removed sequentially, other m-1
station points are reserved, and positioning is conducted m times; a positioning combination with the maximum
occurrence probability of the two-step location
estimation residual error sample is selected; if the probability meets the preset threshold, a corresponding positioning solution is output; if the probability does not meet the preset threshold, the solution is removed. According to the choosing method for the multi-point positioning location solution in the complex scene environment, correlation of two location
estimation values is taken into account, the calculation quantity is small, no other
prior information is needed, universalization and simplification are facilitated, and the requirement of multi-point positioning
engineering application in the complex scene environment can be met.