Method using improved regularization method to restrain difference global positioning system (DGPS) integer ambiguity ill-condition
A whole-circle ambiguity, ill-conditioned technology, applied in the direction of satellite radio beacon positioning system, measuring device, instrument, etc.
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[0045] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.
[0046] The method of the present invention first uses the integer least squares to solve the floating-point solution of the observation equation, and then introduces the improved regularization method into the suppression of the ill-conditionedness of the integer ambiguity, so that the ill-conditionedness in the process of solving the DGPS integer ambiguity can be eliminated. Improvement can obtain a stable solution to the ambiguity of the whole circle, so that it is more accurate when using DGPS for high-precision positioning and attitude measurement.
[0047] The present invention is a kind of method that adopts improved regularization method to suppress the ill-conditionedness of DGPS integer ambiguity, such as figure 1 As shown, each step is described in detail as follows.
[0048] Step 1: collect observation data of GPS carrier phas...
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