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L2C signal tracking method and device, storage medium and equipment

A storage medium and signal technology, applied in the field of communication, can solve the problems of poor stability and low precision, and achieve the effects of improving stability, improving tracking ability, and improving efficiency and stability.

Pending Publication Date: 2022-02-08
国科海芯(上海)微电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a method, device, storage medium and equipment for tracking L2C signals, so as to solve the technical problems of poor stability and low precision of the method for assisting in tracking L2C signals in the L1 frequency band

Method used

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  • L2C signal tracking method and device, storage medium and equipment
  • L2C signal tracking method and device, storage medium and equipment

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Embodiment 1

[0031] According to an embodiment of the present invention, an embodiment of a method for tracking an L2C signal is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0032] figure 1 is a tracking method of an L2C signal according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0033] Step S102, receiving an L2C signal, where the L2C signal includes a CM signal and a CL signal;

[0034] Step S104, tracking the above-mentioned CM signal;

[0035] Step S106, determining the mapping relationship between the above-mentioned CM signal and the above-mentioned CL signal;

[0036] Step S108, switch to trackin...

Embodiment 2

[0056] This embodiment provides an L2C signal tracking device, and multiple implementation units included in the device can execute each implementation step in the first embodiment above.

[0057] Figure 9 is a schematic diagram of an L2C signal tracking device according to an embodiment of the present application. Such as Figure 9 As shown, the device includes:

[0058] a receiving unit 92, configured to receive an L2C signal, where the L2C signal includes a CM signal and a CL signal;

[0059] A tracking unit 94, configured to track the above-mentioned CM signal;

[0060] A determining unit 96, configured to determine a mapping relationship between the above-mentioned CM signal and the above-mentioned CL signal;

[0061] The switching unit 98 is configured to switch to tracking the above-mentioned CL signal according to the above-mentioned mapping relationship.

[0062] In the above solution, the tracking unit tracks the CM signal, and the switching unit switches to trac...

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Abstract

The invention discloses an L2C signal tracking method and device, a storage medium and equipment. The method comprises the following steps: receiving an L2C signal, the L2C signal comprising a CM signal and a CL signal; tracking a CM signal; determining a mapping relation between the CM signal and the CL signal; and switching to track the CL signal according to the mapping relation. According to the invention, the technical problems of poor stability and low precision of the method for tracking the L2C signal with the assistance of the L1 frequency band are solved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method, device, storage medium and equipment for tracking an L2C signal. Background technique [0002] The GPS system originated from the US Navy Navigation Satellite System project in 1958, which launched the first navigation satellite in 1960 and was the world's first successfully operating satellite navigation system. The signals transmitted by the GPS system in the early stage only have two frequency bands, L1 (1575.42MHz) and L2 (1227.60MHz). Among them, the C / A code and P(Y) code are modulated on the L1 frequency band, and the P(Y) code is modulated on the L2 frequency band; the C / A code is open to ordinary users, and the P(Y) code is only open to authorized users. [0003] With the development of society, the demand for satellite navigation system in the civil field is increasing day by day. Early GPS systems were no longer sufficient. In 1999, the United States pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/24G01S19/39G01S19/42
CPCG01S19/24G01S19/393G01S19/42
Inventor 李荣芸
Owner 国科海芯(上海)微电子有限公司
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