High-precision positioning module in the satellite navigation signal capture algorithm in the use of the stage cited the hardware structure and programming model, the basic characteristics of high-precision positioning module can be used in the serial search and capture algorithm of the idea of GPU computing, and through the analysis of the serial search and capture algorithm was successfully transformed into a suitable matrix multiplication model of the GPU calculations, the following is an introduction to the high-precision positioning module how to carry out rapid capture of positioning?

1、Capture algorithm to improve speed

The high-precision positioning module completes its algorithm and combines with the experimental platform to further optimize the CUDA sequence. Optimization results show that the serial capture algorithm combined with the GPU to stop the calculation speed is tens of times faster than the use of the CPU to stop the calculation, thus applying the multi-core parallel computing characteristics of the GPU invalidly improved the capture algorithm function.

2, the detection of fragmented positioning

High-precision positioning module composed of multiple satellites will provide more choices for global civil navigation users. It is due to a variety of high-precision positioning module satellite navigation and positioning fragmentation of the presentation and development, GNSS appeared multipolarization tendency. Because of the number of visible satellites, fragmentation errors and other elements of its availability and service integrity monitoring function has been greatly restricted, high-precision positioning module to establish and synchronize the development of fragmentation stops on the future of BeiDou satellite navigation fragmentation of the global wide range of use plays an important role in the development of the potential economic and military potential, expanding the scope of use of the key impact.

In short, high-precision positioning module for rapid capture positioning, respectively, need to capture the algorithm to improve the speed, fragmentation of the positioning of the detection. Many people want to understand the high-precision positioning module which brand quality, in fact, due to the high-precision positioning module has a more robust, more accurate, more complete navigation function, into the future direction of development of positioning. Before the high-precision positioning module some of the capture algorithm improvement is to increase the number of searches to improve the speed of the capture algorithm implementation, more or less introduced other more complex calculations or perhaps reduce the accuracy of the capture.