45results about How to "Reduce latency impact" patented technology

This invention discloses a method, system, device, medium, and product for evaluating ambiguity of BeiDou satellites. The method includes: receiving carrier observation data and observation conditions for each satellite transmitted from several BeiDou satellites to a base station; calculating integer ambiguity based on the carrier observation data; calculating first ionospheric delay information based on the carrier observation data, integer ambiguity, and preset ionospheric parameters; inputting the first ionospheric delay information and the observation conditions for each satellite into a preset ionospheric mapping model to obtain second ionospheric delay information for the base station; determining the residual error of each BeiDou satellite based on the second ionospheric delay information and each first ionospheric delay information; determining the allowable fluctuation range based on each residual error; and evaluating the integer ambiguity based on each allowable fluctuation range. This application can accurately identify whether the integer ambiguity fixation is correct under complex ionospheric environments and variable observation conditions, thereby improving the accuracy of BeiDou high-precision positioning results.