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Signal conditioning method and device

A signal conditioning and signal technology, applied in the computer field, can solve the problems of low stripping of signal carrier and spreading code, affecting positioning accuracy, etc.

Active Publication Date: 2015-12-02
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practice, the carrier and spreading code in the signal often have a low degree of stripping, which affects the positioning accuracy.

Method used

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  • Signal conditioning method and device
  • Signal conditioning method and device

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] Such as figure 1 As shown, a signal conditioning method provided by an embodiment of the present invention includes:

[0045] 110. Perform frequency mixing on the currently received signal and the locally reproduced signal to obtain a mixed frequency signal.

[0046] 120. Obtain coherent information according to the mixed frequency signal and the locally generated spreading code.

[0047] 130. Process the relevant information to obtain a processing result.

[0048] 140. Apply the processing result to adjust the locally generated signal, and use the adjusted signal to strip the carrier and the spreading code from the signal received at the next moment.

[0049] This implementation can be realized by a signal conditioning devic...

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Abstract

The invention discloses a method and a device for regulating signals, which are capable of increasing the locating accuracy by increasing the stripping degree of carrier waves and spreading codes in the signals. The method comprises the steps of obtaining frequency mixing signals by carrying out frequency mixing on signals which are currently received and signals which are locally recurrent, obtaining coherent information according to the frequency mixing signals and the spreading codes which are locally generated, processing the coherent information, obtaining a processing result, regulating signals which are locally generated by adopting the processing result, and stripping the carrier waves and the spreading codes in the signals which are received at the next moment from each other by adopting the signals which are regulated. According to the method and the device, disclosed by the embodiment of the invention, the carrier waves and the instantaneous codes which are locally generated can be respectively consistent with receiving carrier waves and receiving codes, and thus the stripping degree of the carrier waves and the spreading codes in the signals which are received at the next moment can be increased.

Description

technical field [0001] The invention relates to the field of computers, in particular to a signal adjustment method and device. Background technique [0002] Satellite positioning technology originated in the middle of the 20th century. Satellite positioning systems can provide three-dimensional positioning, navigation and timing services. Satellite navigation technology is widely used in public security, intelligent transportation, ocean fisheries, forest fire prevention and other fields. At present, the main positioning systems are Big Dipper (BDS), GPS (Global Positioning System), GLONASS (Galileo) and GALILEO (Glonass). [0003] In the satellite positioning system, the received signal needs to be adjusted, and the carrier and spreading code in the signal are stripped, so as to facilitate the acquisition of carrier parameters and spreading code parameters for subsequent processing. However, in practice, the carrier and spreading code in the signal often have a low degree...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/227G01S19/37
CPCG01S19/37
Inventor 邓中亮杨磊尹露席岳詹中伟
Owner BEIJING UNIV OF POSTS & TELECOMM
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