CN103926594A - Satellite positioning receiver - Google Patents
Satellite positioning receiver Download PDFInfo
- Publication number
- CN103926594A CN103926594A CN201410181765.XA CN201410181765A CN103926594A CN 103926594 A CN103926594 A CN 103926594A CN 201410181765 A CN201410181765 A CN 201410181765A CN 103926594 A CN103926594 A CN 103926594A
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- Prior art keywords
- submodule
- interface
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- module
- processing module
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/36—Constructional details or hardware or software details of the signal processing chain relating to the receiver frond end
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/37—Hardware or software details of the signal processing chain
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a satellite positioning receiver which comprises an antenna, a radio frequency front-end processing module, a base band digital signal processing module and an interface module. According to the satellite positioning receiver, the size and the power dissipation are reduced, abundant interfaces are provided, and convenience is brought to data interaction between a user and the receiver.
Description
Technical field
The present invention relates to satnav field, relate in particular to a kind of satellite positioning receiver.
Background technology
Increasingly mature along with global satellite positioning, high-precision GPS (Global Position System) (GNSS, Global Navigation Satellite System) further abundant in the application of people's daily productive life, as mobile navigation, geodetic surveying, high precision time service, satnav etc.Accordingly, each relevant industry has also been released the receiver of a lot of high-precision GPS (Global Position System), has improved to a great extent the efficiency during people produce, and provides convenience to people's life, has promoted the quality of people's lives.
But the receiver of current GPS (Global Position System) also has following defect:
The first, GPS (Global Position System) receiver is on the market all generally the receiver of tailored version, and the dependency degree of industry is high, and user can not do secondary customized development on existing product.The receiver of producing can only be used for certain specific purposes, can not, as other purposes, cause the wasting of resources on certain degree; And in the time that product can not be fitted user's demand completely, user can not modify to product related fields, can only wait for new product, latent period is long.Most importantly can not develop relevant industrial application software by user and third party, range of application is narrow.
The second, the framework of the receiver of existing GPS (Global Position System) is generally the module of a GPS (Global Position System), and the central processing unit of an additional sector application forms, and the small product size of formation is bigger than normal, and power consumption is larger.
The 3rd, the general low communication mode transfer data such as serial ports, bluetooth, 2.4g wireless module that adopt between the receiver module on existing GPS (Global Position System) receiver and application processor module, not only inefficiency, and also the distance of transmission is very limited.
The 4th, the receiver of existing GPS (Global Position System), because of limited storage space, can not be stored historical navigation data.
The 5th, the receiver of existing GPS (Global Position System) is local upgrade and the online upgrading of supported application system not, so more the application system of new receiver bothers very much.
Summary of the invention
The object of the invention is, a kind of satellite positioning receiver is provided, high to improve the dependency degree that existing receiver exists, can not expanded application, power consumption is large, and communication efficiency is low, distance is short, the problem of the little and upgrading trouble of storage space.
The invention discloses a kind of satellite positioning receiver, comprise antenna, radio-frequency front-end processing module, baseband digital signal processing module and interface module, above-mentioned
Antenna, for receiving satellite navigation signals, and sends to radio-frequency front-end processing module;
Radio-frequency front-end processing module, for converting the navigation satellite signal of receiving to digital intermediate frequency signal, and sends to baseband digital signal processing module;
Baseband digital signal processing module, for the digital intermediate frequency signal of receiving being carried out to demodulation, algorithm computing, and offers navigation terminal in real time by the navigation data obtaining;
Interface module, for providing and the data transmission interface of navigation terminal.
Preferably, above-mentioned radio-frequency front-end processing module comprises that merit is divided amplifies submodule, filtering submodule, AD and changes (Analog to Digital, analog to digital conversion) submodule, above-mentioned
Merit is divided amplification submodule, for satellite-signal being amplified to processing, and the signal after amplifying is carried out to shunt and process;
Filtering submodule, for carrying out filtering processing to the signal after amplifying;
AD changes submodule, for filtered signal is carried out to AD conversion, obtains digital intermediate frequency signal.
Preferably, above-mentioned baseband digital signal processing module comprises demodulation submodule, application system submodule and sub module stored; Above-mentioned
Demodulation submodule, for carrying out demodulation to the intermediate-freuqncy signal of receiving;
Application system submodule, carries out algorithm calculation process for the signal to after demodulation, and the data that obtain are offered to navigation terminal in real time, and above-mentioned data are stored in above-mentioned sub module stored;
Sub module stored, for providing the space of memory headroom and storage historical navigation data.
Preferably, above-mentioned interface module comprises serial ports submodule, wifi submodule, Ethernet interface submodule and SD interface sub-module, above-mentioned
Serial ports submodule, for providing serial interface;
Wifi submodule, for providing wifi interface;
Ethernet interface submodule, for providing Ethernet interface;
SD interface sub-module, for providing SD card (Secure Digital Memory Card, the storage card of based semiconductor flash technology) interface.
Preferably, above-mentioned application system submodule also for receiving the historical navigation request of data of navigation terminal, and reads corresponding historical navigation data from above-mentioned sub module stored, sends to navigation terminal.
Preferably, above-mentioned filtering submodule is a bandpass filter.
Preferably, above-mentioned demodulation submodule, is a field programmable gate device;
Above-mentioned application system submodule is a dual microprocessors;
Above-mentioned sub module stored is one to be integrated with the microprocessor of Nand flash and DDR (Double Data Rate, Double Data Rate synchronous DRAM).
The baseband processing module of receiver of the present invention adopts integrated device, has reduced volume and the power consumption of receiver, and abundant interface is provided, and facilitates the data interaction of user and receiver.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the theory diagram of satellite positioning receiver of the present invention.
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the theory diagram of satellite positioning receiver of the present invention, comprises antenna 01, radio-frequency front-end processing module 02, baseband digital signal processing module 03 and interface module 04, wherein,
Antenna 01, for receiving satellite navigation signals, and sends to radio-frequency front-end processing module 02;
Radio-frequency front-end processing module 02, comprising that merit is divided amplifies submodule 21, filtering submodule 22, AD and changes submodule 23, wherein,
Merit is divided amplification submodule 21, for satellite-signal being amplified to processing, and the signal after amplifying is carried out to shunt and process;
Filtering submodule 22, is a bandpass filter, for the signal after amplifying is carried out to filtering processing;
AD changes submodule 23, for filtered signal is carried out to AD conversion, obtains digital intermediate frequency signal;
Baseband digital signal processing module 03, comprises demodulation submodule 31, application system submodule 32 and sub module stored 33; Described
Demodulation submodule 31 is a field programmable gate device; For the intermediate-freuqncy signal of receiving is carried out to demodulation;
Application system submodule 32 is a dual microprocessors; For the signal after demodulation is carried out to algorithm calculation process, and the data that obtain are offered to navigation terminal in real time, and described data are stored in described sub module stored 33; For receiving the historical navigation request of data of navigation terminal, and from sub module stored 33, read corresponding historical navigation data, send to navigation terminal;
Sub module stored 33 is one to be integrated with the microprocessor of Nand flash and DDR; For the space of memory headroom and storage historical navigation data is provided;
Interface module 04, for providing and the data transmission interface of navigation terminal, comprises serial ports submodule 41, wifi submodule 42, Ethernet interface submodule 43 and SD interface sub-module 44, wherein
Serial ports submodule 41, for providing serial interface; User can carry out local upgrade to the application system of receiver by this interface;
Wifi submodule 42, for providing wifi interface; User can carry out remote upgrade to the application system of receiver by this interface;
Ethernet interface submodule 43, for providing Ethernet interface;
SD interface sub-module 44, for SD card interface is provided, user can be by the storage space of SD card expansion receiver.
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, amendment and environment, and can, in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not depart from the spirit and scope of the present invention, all should be in the protection domain of claims of the present invention.
Claims (7)
1. a satellite positioning receiver, is characterized in that, comprises antenna, radio-frequency front-end processing module, baseband digital signal processing module and interface module, described in
Antenna, for receiving satellite navigation signals, and sends to radio-frequency front-end processing module;
Radio-frequency front-end processing module, for converting the navigation satellite signal of receiving to digital intermediate frequency signal, and sends to baseband digital signal processing module;
Baseband digital signal processing module, for the digital intermediate frequency signal of receiving being carried out to demodulation, algorithm computing, and offers navigation terminal in real time by the navigation data obtaining;
Interface module, for providing and the data transmission interface of navigation terminal.
2. satellite positioning receiver as claimed in claim 1, is characterized in that, described radio-frequency front-end processing module comprises that merit is divided amplifies submodule, filtering submodule, AD and change submodule, described in
Merit is divided amplification submodule, for satellite-signal being amplified to processing, and the signal after amplifying is carried out to shunt and process;
Filtering submodule, for carrying out filtering processing to the signal after amplifying;
AD changes submodule, for filtered signal is carried out to AD conversion, obtains digital intermediate frequency signal.
3. satellite positioning receiver as claimed in claim 1 or 2, is characterized in that, described baseband digital signal processing module comprises demodulation submodule, application system submodule and sub module stored; Described
Demodulation submodule, for carrying out demodulation to the intermediate-freuqncy signal of receiving;
Application system submodule, carries out algorithm calculation process for the signal to after demodulation, and the data that obtain are offered to navigation terminal in real time, and described data are stored in described sub module stored;
Sub module stored, for providing the space of memory headroom and storage historical navigation data.
4. satellite positioning receiver as claimed in claim 3, is characterized in that, described interface module comprises serial ports submodule, wifi submodule, Ethernet interface submodule and SD interface sub-module, described in
Serial ports submodule, for providing serial interface;
Wifi submodule, for providing wifi interface;
Ethernet interface submodule, for providing Ethernet interface;
SD interface sub-module, for providing SD card interface.
5. satellite positioning receiver as claimed in claim 4, it is characterized in that, described application system submodule, also for receiving the historical navigation request of data of navigation terminal, and from described sub module stored, read corresponding historical navigation data, send to navigation terminal.
6. satellite positioning receiver as claimed in claim 2, is characterized in that, described filtering submodule is a bandpass filter.
7. satellite positioning receiver as claimed in claim 5, is characterized in that,
Described demodulation submodule is a field programmable gate device;
Described application system submodule is a dual microprocessors;
Described sub module stored is one to be integrated with the microprocessor of Nand flash and DDR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181765.XA CN103926594A (en) | 2014-04-30 | 2014-04-30 | Satellite positioning receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410181765.XA CN103926594A (en) | 2014-04-30 | 2014-04-30 | Satellite positioning receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103926594A true CN103926594A (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410181765.XA Pending CN103926594A (en) | 2014-04-30 | 2014-04-30 | Satellite positioning receiver |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011237333A (en) * | 2010-05-12 | 2011-11-24 | Mitsubishi Electric Corp | Satellite positioning receiver |
| CN203069784U (en) * | 2013-01-07 | 2013-07-17 | 北京博飞仪器股份有限公司 | GNSS receiver having communication function |
| CN103698773A (en) * | 2014-01-13 | 2014-04-02 | 北京北斗星通导航技术股份有限公司 | Big dipper multi-frequency-point satellite navigation receiver and board card thereof |
-
2014
- 2014-04-30 CN CN201410181765.XA patent/CN103926594A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011237333A (en) * | 2010-05-12 | 2011-11-24 | Mitsubishi Electric Corp | Satellite positioning receiver |
| CN203069784U (en) * | 2013-01-07 | 2013-07-17 | 北京博飞仪器股份有限公司 | GNSS receiver having communication function |
| CN103698773A (en) * | 2014-01-13 | 2014-04-02 | 北京北斗星通导航技术股份有限公司 | Big dipper multi-frequency-point satellite navigation receiver and board card thereof |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140716 |