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Method and device for determining code phase of ranging code, and user terminal

A code phase and ranging code technology, applied in the field of determining the code phase of the ranging code, can solve the problems of increased correlator area and rough code phase accuracy, and achieve the effect of reducing the hardware area

Active Publication Date: 2017-05-10
ARKMICRO TECH
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Problems solved by technology

[0006] In view of this, the embodiments of the present invention provide a method, device, and user terminal for determining the code phase of the ranging code, so as to solve the problem of the method for determining the code phase of the ranging code provided by the prior art. The accuracy of the code phase is rough, and if If the accuracy of the code phase is improved, the area of ​​the correlator will be greatly increased

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  • Method and device for determining code phase of ranging code, and user terminal
  • Method and device for determining code phase of ranging code, and user terminal
  • Method and device for determining code phase of ranging code, and user terminal

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other features. , whole, step, operation, element, component and / or the presence or addition of a collection thereof.

[0059] It should also be understood that the terminology used in the description...

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Abstract

The invention belongs to the technical field of communication and provides a method and device for determining a code phase of a ranging code, and a user terminal. The method comprises the steps of SA, obtaining discrete data; SB, obtaining carrier stripped data; SC, carrying out code matching operation according to the carrier stripped data and an initial position of sampling points, thereby obtaining a code matching result; SD, carrying out code phase search according to the code matching result and the locally copied ranging code; and SE, carrying out peak detection, if peaks are captured successfully, storing the captured peaks, adding the initial position of the sampling points and the step size x of the initial position, returning to the SC until the initial position of the sampling points is greater than the number p of the sampling points in a chip, and if the initial position of the sampling points is greater than the p, comparing p / x stored peaks, and finding the maximum peak, wherein the code phase of the ranging code is the code phase corresponding to the maximum peak. Through application of the method, the device and the user terminal, the code phase precision of the ranging code can be increased, and an area of a correlator is not increased.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method, a device and a user terminal for determining a code phase of a ranging code. Background technique [0002] At present, the Global Navigation Satellite System (GNSS), GNSS includes the US Global Positioning System (Global Positioning System, GPS), Russia's GLONASS Positioning System (GLONASS), the European Union's Galileo (Galileosatellite navigation system, GAILEO) system and China's Beidou Navigation Satellite System (BeiDouNavigation Satellite System, BDS), the GNSS system aims to provide users with satellite navigation and positioning services around the clock. [0003] Taking the BDS system as an example, the basic components of the system include: the space segment, the ground control segment and the user segment. First, each satellite in the space segment transmits navigation signals to the ground control segment; then, the ground control segment...

Claims

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Application Information

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IPC IPC(8): H04B1/7075G01S19/30
CPCG01S19/30H04B1/70752H04B1/70753
Inventor 阳金金刘俊秀周显文王雅君石岭
Owner ARKMICRO TECH
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