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GPS and Glonass multichannel parallel signal tracing method and correlator

A signal tracking and multi-channel technology, applied in the field of satellite signal tracking system, can solve the problem of not being able to receive GPS and GLONASS signals at the same time

Inactive Publication Date: 2012-11-21
BEIJING UNISTAR MICROELECTRONICS
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  • Abstract
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  • Application Information

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Problems solved by technology

Traditional satellite signal tracking systems can only receive GPS or GLONASS signals, but cannot receive GPS and GLONASS signals at the same time

Method used

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  • GPS and Glonass multichannel parallel signal tracing method and correlator
  • GPS and Glonass multichannel parallel signal tracing method and correlator
  • GPS and Glonass multichannel parallel signal tracing method and correlator

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Embodiment Construction

[0105] The present invention will be further described below in conjunction with accompanying drawing:

[0106] The present invention includes two parts, a method and a correlator.

[0107] Method section:

[0108] Because there are many different GNSS receivers, there are different ways to do it. To accommodate this, and also to allow dynamic adjustment of the loop parameters, the software of the correlator is designed to accommodate as many functions as possible. This flexibility means that the device cannot be used without a close-coupled microprocessor, but since the microprocessor is always required to convert the output of the correlator into useful information, this is not a great limitation.

[0109] The software associated with the correlator can be divided into two separate modules:

[0110] 1. Acquire and track satellite signals to give pseudoranges.

[0111] 2. Process pseudoranges to derive navigation information and then package into a format suitable for the...

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PUM

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Abstract

The invention discloses a GPS and Glonass multichannel parallel signal tracing method and a correlator, comprising a multichannel correlator. The multichannel correlator comprises a clock generator, a time base generator, registers, an address decoder, a bus interface, a plurality of tracing modules, wherein, the plurality of tracing modules are connected in parallel through bus. The parallelly connected plurality of tracing modules is connected with the clock generator, the time base generator, and the registers, and is connected with the address decoder through the bus interface.

Description

technical field [0001] The invention relates to a satellite signal tracking system, mainly referring to a GPS and GLONASS multi-channel parallel signal tracking method and a correlator. Background technique [0002] It is known that GPS uses code division multiple access signals, and GLONASS uses bisector multiple access signals. Traditional satellite signal tracking systems can only receive GPS or GLONASS signals, but cannot receive GPS and GLONASS signals at the same time. Contents of the invention [0003] The purpose of the present invention is to provide a GPS and GLONASS multi-channel parallel signal tracking method and a correlator, through antenna compatibility, decoding, carrier separation mixing, programming control channel, a receiver can simultaneously receive GPS and GLONASS multi-channel signal, which better overcomes the deficiencies in the prior art. [0004] Realize the method for the present invention is: capturing and tracking satellite signal comprise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/24G01S19/30
Inventor 庄巍王泽复谢德明陈跃斌王星
Owner BEIJING UNISTAR MICROELECTRONICS
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