Carrier phase positioning method based on chaotic mapping sparrow regression search

• Main Authors: LIANG WEIBIN, FU WENTAO, LIU XINYI, JI YUANFA, ZHAO SONGKE, SUN XIYAN, JIA QIANZI
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC DIGITAL DATA PROCESSING; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention relates to the technical field of satellite navigation, in particular to a carrier phase positioning method based on chaotic mapping sparrow regression search, which adopts chaotic mapping to initialize a sparrow population and optimize a follower strategy and a warning person strategy in the process of searching integer ambiguity. A memory regression model and a monitoring strategy are introduced according to foraging behaviors of sparrows, and baseline constraints are introduced based on coherent characteristics of carriers. Through the setting, the problems that the integer ambiguity search is caught in local optimum and poor in convergence are solved, the search space exploration and development performance is improved, the quick search of the integer ambiguity is realized, and meanwhile, through the verification of a three-dimensional experiment, a multi-dimensional experiment and an RTK experiment in an actual environment, the accuracy of the whole-cycle ambiguity search is improved, and t