Signal parameter correction of boc signal, boc signal tracking method and system

A signal parameter and data tracking technology, applied in the field of signal processing, can solve problems affecting BOC signal tracking effect and achieve good tracking effect

Active Publication Date: 2018-05-08
GUANGZHOU HAIGE COMM GRP INC
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Problems solved by technology

[0004] Based on this, it is necessary to provide a BOC signal signal parameter correction, BOC signal tracking method and system for the technical problems that traditional solutions affect the BOC signal tracking effect

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  • Signal parameter correction of boc signal, boc signal tracking method and system
  • Signal parameter correction of boc signal, boc signal tracking method and system
  • Signal parameter correction of boc signal, boc signal tracking method and system

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Embodiment Construction

[0037] The specific implementation of the method and system for signal parameter correction of BOC (Binary Offset Carrier) signal and BOC signal tracking method and system of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] refer to figure 1 , figure 1 Shown is a flow chart of a signal parameter correction method for a BOC signal in an embodiment, including the following steps:

[0039] S20, acquire the captured satellite BOC signal, copy the local BOC signal used to track the satellite BOC signal, and acquire a tracking component according to the captured satellite BOC signal; wherein, the tracking component is a state parameter of the satellite BOC signal;

[0040] Before the above steps, the corresponding satellite BOC signal can be captured and processed by initializing the tracking loop, and the carrier Doppler frequency, code phase and subcarrier phase of the BOC signal estimated after the capture process ca...

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Abstract

The present invention relates to a method and system for signal parameter correction of BOC signals and a method and system of BOC signal tracking. The method for signal parameter correction of BOC signals comprises the following steps: obtaining captured satellite BOC signals, copying local BOC signals for tracking satellite BOC signals, and obtaining tracking components according to the captured satellite BOC signals; generating pilot frequency pseudo-code signals and data pseudo-code signals corresponding to the local BOC signals, and obtaining pilot frequency tracking components and data tracking components corresponding to the tracking components on the pilot frequency pseudo-code signals and data pseudo-code signals; combining the pilot frequency tracking components and the data tracking components, and obtaining combined tracking components; and correcting the signal parameters of the local BOC signals according to the combined tracking components. According to the invention, the method and system for signal parameter correction of BOC signals and the method and system of BOC signal tracking are able to realize accurate tracking of parameters of BOC signals and provide a good tracking effect.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a method and system for modifying signal parameters of a BOC signal and tracking a BOC signal. Background technique [0002] In BOC modulation, the autocorrelation function exhibits multi-peak characteristics, and the number of peak points depends on the ratio of the subcarrier frequency to the spreading code rate. The more obvious, so dealing with the tracking ambiguity problem caused by multi-peak is a problem that needs to be solved in BOC signal tracking. [0003] The traditional technology generally adopts the sideband algorithm, which treats the BOC signal approximately as the sum of two BPSK signals, and processes the sideband of the BOC signal similarly to the BPSK signal; at the same time, because the pilot frequency has no message modulation, and the pilot frequency and data are two-way carrier The phase relationship is fixed, so the pilot channel is used to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/29
CPCG01S19/29
Inventor 郭振扬杨崇艳
Owner GUANGZHOU HAIGE COMM GRP INC
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