CN204177970U - Beidou navigation anti-interference antenna radio frequency component - Google Patents
Beidou navigation anti-interference antenna radio frequency component Download PDFInfo
- Publication number
- CN204177970U CN204177970U CN201420586876.4U CN201420586876U CN204177970U CN 204177970 U CN204177970 U CN 204177970U CN 201420586876 U CN201420586876 U CN 201420586876U CN 204177970 U CN204177970 U CN 204177970U
- Authority
- CN
- China
- Prior art keywords
- passage
- signal
- antenna
- gps
- low noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The utility model discloses a kind of Beidou navigation anti-interference antenna radio frequency component, comprise four north of a road bucket Signal reception pre-processing assembly and road GPS assemblies, every north of a road bucket Signal reception pre-processing assembly comprises a BD2-B3 antenna oscillator, a low noise amplifier, one receives down coversion passage, Big Dipper signal is received by BD2-B3 antenna oscillator, amplify, digital signal processing module is sent into via down coversion passage, then deliver to the frequency conversion of up-conversion passage and gps signal to close road and export, gps signal received through gps antenna a period of time, close road with Big Dipper signal after up-conversion passage is delivered in amplification to export.The utility model utilizes antenna array to obtain space sample signal, sends into digital signal processing module after pre-service, and the two dimension adopting Space-time domain to combine by digital signal processing module is anti-interference, and the Anti-Jamming Technique of empty associating frequently, adopts suitable Anti-interference algorithm to eliminate interference; Close road with gps signal after finally feeding up-conversion passage carries out up-conversion to export.The utility model antijamming capability is strong, and Received signal strength is stablized.
Description
Technical field
The utility model relates to a kind of Beidou navigation anti-interference antenna radio frequency component, belongs to satellite navigation communication technical field.
Background technology
The Anti-Jamming Technique of Big Dipper signal receiver is the emphasis of receiver always.Several main Anti-Jamming Technique of current employing comprises: adaptive antenna zeroing technology-it refers to and set to zero adaptive for the received power in interference source direction, and this technology is realized by gap parts or use microstrip antenna array, lean on art to reach directed effective function suppressing interference with this adaptive antenna zeroing; Beam controlling antenna technology refer to from coplanar antenna array according to the optional degree of the satellite transmitted and to interference elimination ability provide wave beam with the direction of the Received signal strength of control antenna and suppress direction; Airspace filter technology: the principle that airspace filter technology is mainly used is, because signal is different to the phase place of the different signal just causing different array element to receive of wave path-difference of different array element, airspace filter just utilizes this different phase information to carry out anti-interference process to signal, the array received be made up of array element is to the mixed signal of useful signal and undesired signal, array element is different from the suppression degree of the undesired signal in the signal of different directions to space, make under specific criterion constraint useful signal auxiliary go out undesired signal that is maximum, that export minimum.Several anti-interference mode is all that effect is just better when electromagnetic environment is not very severe above, if interference environment their jamproof performances complicated cannot ensure.
Utility model content
It is strong that the utility model technical issues that need to address are to provide a kind of antijamming capability, the Beidou navigation anti-interference antenna radio frequency component for Beidou receiver that Received signal strength is stable.
For solving the problem, technical solution adopted in the utility model is:
A kind of Beidou navigation anti-interference antenna radio frequency component, comprise four north of a road bucket Signal reception pre-processing assembly and road GPS assemblies, every north of a road bucket Signal reception pre-processing assembly comprises a BD2-B3 antenna oscillator, a low noise amplifier, one receives down coversion passage, wherein the feedback point of BD2-B3 antenna oscillator connects the input end of low noise amplifier, the output terminal of low noise amplifier connects the input end receiving down coversion passage, the output terminal receiving down coversion passage is connected to the input end of digital signal processing module, Big Dipper signal is received by BD2-B3 antenna oscillator, amplify, digital signal processing module is sent into via down coversion passage, after digital signal processing module process, deliver to the frequency conversion of up-conversion passage and gps signal close road and export, GPS assembly comprises gps antenna oscillator, low noise amplifier, the feedback point in gps antenna a period of time connects the input end of low noise amplifier, the output of low noise amplifier connects the input end of up-conversion passage, gps signal received through gps antenna a period of time, close road with Big Dipper signal after up-conversion passage is delivered in amplification to export.
Contained in above-mentioned up-conversion channel components and carried out BD2-B3 signal and gps signal closing the radio frequency combiner that road exports, therefore combiner no longer sets up module, and gps signal directly sends into the radio frequency combiner input end in up-conversion passage.
The beneficial effect adopting technique scheme to produce is: the utility model utilizes antenna array to obtain space sample signal, digital signal processing module is sent into after LNA, down-converted, the two dimension adopting Space-time domain to combine by digital signal processing module is anti-interference, the Anti-Jamming Technique of empty associating frequently, adopts suitable Anti-interference algorithm to eliminate interference; Close road with gps signal after finally feeding up-conversion passage carries out up-conversion to export.The utility model antijamming capability is strong, and Received signal strength is stablized; Its frequency band covers the suppression jamming of BD2-B3 frequency, anti-go alone disturb, anti-three interference performances are very outstanding.
Accompanying drawing explanation
Fig. 1 is the utility model theory diagram;
Fig. 2 is the utility model up-conversion schematic diagram;
Fig. 3 is the utility model down coversion schematic diagram;
Fig. 4 is the utility model Big Dipper signal low noise amplifier schematic diagram;
Fig. 5 is the utility model gps signal low noise amplifier schematic diagram;
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail: as shown in Figure 1,
A kind of Beidou navigation anti-interference antenna radio frequency component, comprises four BD2-B3 antenna oscillators 1, forms Big Dipper signal receiving antenna battle array; Four low noise amplifiers 3, for the LNA of four BD2-B3 antenna oscillator 1 Received signal strength; Four receive down coversion passage 4, for the down-converted of Big Dipper signal after LNA; A up-conversion passage 6, the Big Dipper signal for the process sent here by digital signal processing module carries out up-conversion again, and meanwhile, it comprises radio frequency combiner, exports for the Big Dipper signal after frequency conversion and treated gps signal are closed road; A gps antenna oscillator 2, for receiving gps satellite signal; A low noise amplifier 5, for the LNA of gps signal.Wherein four BD2-B3 antenna oscillators, 1, four low noise amplifiers 3, four receive the Big Dipper Signal reception pre-processing assembly that down coversion passage 4 forms four paths isolation, the feedback point of the BD2-B3 antenna oscillator 1 of every road assembly connects the input end of low noise amplifier 3, the output terminal of low noise amplifier 3 connects the input end receiving down coversion passage 4, and the output terminal receiving down coversion passage 4 is connected to the input end of digital signal processing module (not being included within the scope of radio frequency component of the present utility model).The feedback point in gps antenna a period of time 2 connects the input end of low noise amplifier 5, and the output of low noise amplifier 5 connects the input end of up-conversion passage.
Principle of work:
Big Dipper signal is received by BD2-B3 antenna oscillator 1, amplify through low noise amplifier 3, digital signal processing module is sent into via down coversion passage 4 frequency conversion, up-conversion passage 6 frequency conversion is delivered to after digital signal processing module process, receive with by gps antenna a period of time 2, amplify the gps signal delivering to up-conversion passage 6 through low noise amplifier 5, close road via the radio frequency combiner in up-conversion passage 6 and export.Low noise amplifier 3 schematic diagram is see Fig. 4; Down coversion passage 4 schematic diagram is see Fig. 3; Up-conversion passage 6 schematic diagram is see Fig. 2; Low noise amplifier 5 schematic diagram is see Fig. 5.
The utility model has the active antenna function simultaneously receiving BD2-B3, GPS navigation positioning signal, has the anti-interference reception processing capacity of complete independently to the maximum-43dBm undesired signal of BD2-B3; Be supplied to Beidou receiver to use, substitute common active antenna; Realize the anti-interference of BD2-B3 and the active antenna function to BD2-B3, GPS navigation positioning signal, four tunnels are BD2-B3 pre-processing channel independently, achieve the characteristic such as high three rank, high-isolation, high consistance receiving down coversion passage, thus improve interference free performance.
The utility model interference free performance index is as follows:
1, anti-interference type: frequency band covers the suppression jamming of XX2-X3 frequency;
2, anti-going alone disturbs source capability: jamming-to-signal ratio is not less than 70dB (design load 80dB);
3, anti-three interference source abilities: jamming-to-signal ratio is not less than 60dB (design load 70dB).
The utility model the key technical indexes is as follows:
1, channel isolation: >=50dB;
2, the linearity: the two-frequency signal of input-50dBm frequency interval 1MHz in band, harmonics restraint >=55dBc;
3, gain error between road :≤1.0dB; Phase differential between road: ± 5 degree (during the input of@1268.52MHz single carrier).
Claims (3)
1. a Beidou navigation anti-interference antenna radio frequency component, it is characterized in that: comprise BD2-B3 antenna oscillator (1), gps antenna oscillator (2), low noise amplifier (3), up-conversion passage (6), receive down coversion passage (4), wherein the feedback point of BD2-B3 antenna oscillator (1) connects the input end of low noise amplifier (3), the output terminal of low noise amplifier (3) connects the input end receiving down coversion passage (4), and the output terminal receiving down coversion passage (4) is connected to the input end of digital signal processing module; The feedback point in gps antenna a period of time (2) connects the input end of low noise amplifier (5), and the output of low noise amplifier (5) connects the input end of up-conversion passage (6); Big Dipper signal is received by BD2-B3 antenna oscillator (1), amplification, digital signal processing module is sent into via down coversion passage (4), up-conversion passage (6) is delivered to after digital signal processing module process, with received by gps antenna a period of time (2), amplify the gps signal delivering to up-conversion passage (6), via up-conversion passage (6) close road export.
2. Beidou navigation anti-interference antenna radio frequency component according to claim 1, it is characterized in that described BD2-B3 antenna oscillator (1), low noise amplifier (3), reception down coversion passage (4) are respectively four, form four tunnel independent isolating passages, the feedback point of every road BD2-B3 antenna oscillator (1) connects the input end of low noise amplifier (3), and the output terminal of low noise amplifier (3) connects the input end receiving down coversion passage (4).
3. Beidou navigation anti-interference antenna radio frequency component according to claim 1, is characterized in that described up-conversion passage (6) comprises and carries out BD2-B3 signal and gps signal closing the radio frequency combiner that road exports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586876.4U CN204177970U (en) | 2014-10-11 | 2014-10-11 | Beidou navigation anti-interference antenna radio frequency component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420586876.4U CN204177970U (en) | 2014-10-11 | 2014-10-11 | Beidou navigation anti-interference antenna radio frequency component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204177970U true CN204177970U (en) | 2015-02-25 |
Family
ID=52566775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420586876.4U Active CN204177970U (en) | 2014-10-11 | 2014-10-11 | Beidou navigation anti-interference antenna radio frequency component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204177970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200487A (en) * | 2022-02-18 | 2022-03-18 | 河北晶禾电子技术股份有限公司 | Anti-interference up-down frequency conversion system |
-
2014
- 2014-10-11 CN CN201420586876.4U patent/CN204177970U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200487A (en) * | 2022-02-18 | 2022-03-18 | 河北晶禾电子技术股份有限公司 | Anti-interference up-down frequency conversion system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104682985A (en) | GNSS (Global Navigation Satellite System) multi-mode multiplexer module and multi-mode radio frequency receiving and transmitting system | |
| Nejdel et al. | A positive feedback passive mixer-first receiver front-end | |
| CN206807445U (en) | Led to and Beidou communication terminal antenna link-road synthesis system based on day | |
| CN108270453A (en) | The RF front end structure that a kind of single antenna is received and dispatched parallel | |
| CN104062636B (en) | System-on-a-chip integrated design method for S-band 16-channel T/R module | |
| CN204177970U (en) | Beidou navigation anti-interference antenna radio frequency component | |
| CN104348497A (en) | Wireless communication signal reception device and method | |
| CN210444257U (en) | Two-channel S-band down converter | |
| CN102694556B (en) | Second local oscillator circuit of ultra short wave receiver with low-power consumption and high phase noise index | |
| CN103684330A (en) | Medium frequency filter simultaneously applied to wireless receiver and transmitter | |
| CN103001587A (en) | X-frequency-range extra-low inter-modulation frequency converter device of measurement and control system | |
| CN201957022U (en) | Self-adaptive noise eliminating beacon receiver | |
| CN110958026B (en) | Radio frequency broadband transceiver | |
| CN106941365B (en) | Multi-standard full-duplex direct frequency conversion type transceiver | |
| CN103067326A (en) | Telemetering and data transmission integrated transmitter | |
| CN104283826B (en) | A kind of digital compensation method, device and duplexer | |
| CN206432979U (en) | A kind of Ka wave bands R-T unit | |
| CN205142143U (en) | C wave band amplifier | |
| CN203572968U (en) | GP2015-based GPS anti-jamming receiver radio-frequency front-end device | |
| CN202565254U (en) | Ultrashort wave receiver second local oscillator circuit with low power consumption and high phase noise index | |
| US20220350029A1 (en) | Radio frequency architecture and mobile terminal | |
| CN203691386U (en) | Ultrashort wave frequency conversion channel | |
| CN204231333U (en) | A kind of radar system S-band receiver | |
| CN101807959A (en) | Interference suppression method used for cognitive wireless system | |
| CN201584965U (en) | Satellite mobile communication portable terminal RF system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050092 Hebei province Shijiazhuang City Xinshi North Road, No. 368 Building No. 3 West 2 floor West Patentee after: HEBEI JINGHE ELECTRONIC TECHNOLOGY CO., LTD. Address before: 050092 Hebei province Shijiazhuang City Xinshi North Road, No. 368 Building No. 3 West 2 floor West Patentee before: HEBEI JINGHE ELECTRONIC TECHNOLOGY CO., LTD. |