A navigation signal acquisition method and system
A navigation signal and signal technology, which is applied in the field of satellite applications, can solve the problem of increasing the acquisition time of navigation signals, and achieve the effect of reducing the acquisition time and improving the acquisition efficiency.
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Embodiment 1
[0039] See figure 1 and figure 2 ,in, figure 1 It is a flow chart of a navigation signal acquisition method provided in Embodiment 1 of the present application; figure 2 It is a structural diagram of a navigation signal acquisition device provided in Embodiment 1 of the present application.
[0040] In the embodiment of this application, preferably, as figure 1 The device corresponding to the navigation signal acquisition method shown is as follows figure 2 The navigation signal acquisition device shown.
[0041] In the embodiment of the present application, preferably, the form of the navigation signal capturing device may be a navigation receiver, that is to say, the embodiment of the present application provides such figure 1 The navigation signal acquisition method shown is applied to a navigation receiver, which includes such as figure 2 The pseudocode generator and general correlation accumulator in the navigation signal acquisition device shown.
[0042] In t...
Embodiment 2
[0073] Figure 4 It is a schematic structural diagram of a navigation signal acquisition system provided in Embodiment 2 of the present application.
[0074] Such as Figure 4 As shown, a navigation acquisition system provided in Embodiment 2 of the present application includes: a pseudocode generator module 41 and a general correlation accumulator module 42, wherein,
[0075] Pseudo-code generator module 41, is used for utilizing code-related control word to generate segmentation code sign and accumulative clearing signal, code-related control word is the control word corresponding to the pseudo-code characteristic of navigation signal pre-configured by DSP, code-related control word Including code segmentation control word and code frequency control word;
[0076] Universal correlation accumulator module 42, is used for receiving digital intermediate frequency signal, the digital signal that carrier wave generator sends, and the subsection code mark that pseudo code genera...
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