Power system receiver device based on Beidou navigation

Abstract

The invention discloses a power system receiver device based on Beidou navigation. The device comprises a set-top box and a digital receiving unit. The input end of the digital receiving unit is connected to a channel correlator, and the output end of the digital receiving unit is connected to an output unit. The channel correlator comprises an RF front-end controller and a LAN bus module. The input ends of the RF front-end controller and LAN bus module are connected to a Beidou communication module, and the output ends of the RF front-end controller and the LAN bus module are connected to an SAW filter. The input end of the digital receiving unit is connected to a receiver simulation front end, and the digital receiving unit also comprises a digital signal processor. The data input end of the digital signal processor is connected to a radio frequency reading module. The output end of the digital signal processor is connected to a baseband control module. By using a signal capture module, a problem of large computation cost when multiple satellite signals are captured at the same time is solved, and the computation complexity is not increased with the increase of an over-sampling rate.

Description

technical field [0001] The invention relates to the technical field of receiver devices, in particular to a power system receiver device based on Beidou navigation. Background technique [0002] The receiver terminal is an important part of the satellite navigation system. It is the only interface between the satellite navigation system and the main users of the majority of applications. It is the largest market and the most important link in industrialization. At present, the most widely used satellite navigation system in the world The receiver is a GPS receiver, and there are hundreds of products. These products can be divided into timing receivers, geodetic receivers and navigation receivers according to their uses, and can be divided into code correlation receivers according to their working principles. According to the dynamic range, it can be divided into low dynamic, medium dynamic and high dynamic, etc. Since the first civilian GPS receiver came out in 1981, GPS rec...

AI Technical Summary

Problems solved by technology

[0003] In view of the above problems, the present invention provides a power system receiver device based on Beidou navigation, and proposes a correlator with a parallel differential structure for the capture module of the satellite navigation receiver. The correlator solves the problem by multiplexing the correlation results. It solves the problem of huge calculation cost when capturing multiple satellite signals at the same time, and the computational complexity does not increase with the increase of the oversampling rate, which can effectively solve the problems in the background technology

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