High-performance RTK processing technological method

Abstract

The invention discloses a high-performance RTK processing technological method. The high-performance RTK processing technological method comprises the following steps: building an ionized layer, a convection layer and a multipath error model. The specific method comprises the following steps: S1, building a double-error RTK observation model, and estimating baseline vectors between a user and a baseline station and parameters of the ionized layer in real time; and carrying out carrier smoothing code pseudo range, hardware delay estimation and inclination-verticality transformation on GNSS double-frequency measurement data to acquire vertical ionized layer delay parameters from a receiver to a puncturing point of a satellite line and the ionized layer; S2, selecting multiple reference points and multiple reference satellites of to-be-measured areas; and S3, avoiding base stations which can easily produce multipath environments, and adopting instrument equipment with multipath error resistance in proper base stations. The RTK initialization accuracy and reliability are higher, the positioning is more accurate, the system cost is reduced, the size is reduced, a fixing ratio of RTK under a complicated environment is increased, an algorithm is simplified, and the cost of RTK is reduced.

Description

technical field [0001] The invention relates to the field of satellite navigation and positioning systems, in particular to a high-performance RTK processing technology method. Background technique [0002] In the field of high-precision positioning, RTK processing is a calculation-intensive link. Each RTK solution involves large matrix multiplication and inversion operations of double-precision floating points, which is very time-consuming and computing resources. Therefore, high-frequency RTK processing has high requirements on the performance of the SOC. At the same time, the baseband receiver also needs to work at a higher frequency to support multiple satellite signals and multiple frequency points. Contents of the invention [0003] In view of the above problems, in order to solve the deficiencies in the prior art, the present invention provides a high-performance RTK processing technology method. [0004] Technical scheme of the present invention is as follows: ...

AI Technical Summary

Problems solved by technology

[0002]In the field of high-precision positioning, RTK processing is a calculation-intensive link, and each RTK solution involves large matrix multiplication and inverse operations of double-precision floating points. Very time-consuming and computationally resource-intensive