CN206057578U - Briquettability GPS jammer based on pseudo-code - Google Patents
Briquettability GPS jammer based on pseudo-code Download PDFInfo
- Publication number
- CN206057578U CN206057578U CN201621057614.4U CN201621057614U CN206057578U CN 206057578 U CN206057578 U CN 206057578U CN 201621057614 U CN201621057614 U CN 201621057614U CN 206057578 U CN206057578 U CN 206057578U
- Authority
- CN
- China
- Prior art keywords
- code
- pseudo
- radio frequency
- briquettability
- crystal oscillator
- 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.)
- Expired - Fee Related
Links
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The utility model discloses a kind of briquettability GPS jammer based on pseudo-code, including Base Band Unit and radio frequency unit, wherein：Base Band Unit includes crystal oscillator, C/A code generators and DAC, and crystal oscillator, C/A code generators and DAC are sequentially connected；Radio frequency unit includes that quadrature modulator, radio frequency attenuator, carrier wave occur module and high-frequency crystal oscillator, and high-frequency crystal oscillator, carrier wave occur module, quadrature modulator, radio frequency attenuator and be sequentially connected；DAC is also connected with manipulator, and C/A code generators also connect carrier wave simultaneously and module and radio frequency attenuator occur.This utility model is modulated using pseudo-code, can be exported narrow-band interference signal, can be aimed at the reception frequency of GPS, realizes that specific aim is disturbed, and jamming performance is more powerful.
Description
Technical field
This utility model belongs to radio communication and GPS（Global Position System, global positioning system）Satellite
A kind of field of navigation technology, and in particular to briquettability GPS jammer based on pseudo-code.
Background technology
GPS is a kind of high-precision navigation positioning system, due to its can realize it is round-the-clock, global with high-precision company
Continuous navigation and positioning, were widely used in the numerous areas such as economic construction, science and technology and military affairs in the last few years.For extensive
GPS military uses, to GPS the Study of Interference in the urgent need to.
In military field, many NAVIGATION WARFAREs employ GPS positioning system.GPS jammers can GPS positioning system done
Disturb, prevent which from positioning, so as to destroy its cruise guidance function, current GPS jammers are only capable of disturbing realization of goal frequency.By
Gradually ripe in anti-interference research, GPS positioning system is also gradually stepped up to the immunity programm that frequency is disturbed.Therefore, energetically open up
The research for opening narrow band jammer is particularly important.
Utility model content
The purpose of this utility model is to provide a kind of briquettability GPS jammer based on pseudo-code, exportable arrowband interference letter
Number.
To reach above-mentioned purpose, this utility model is adopted the following technical scheme that：
A kind of briquettability GPS jammer based on pseudo-code, including Base Band Unit and radio frequency unit, wherein：
Base Band Unit includes crystal oscillator, C/A code generators and DAC, and crystal oscillator, C/A code generators and DAC are sequentially connected；Radio frequency
Unit includes that quadrature modulator, radio frequency attenuator, carrier wave occur module and high-frequency crystal oscillator, and high-frequency crystal oscillator, carrier wave occur module, just
Quadrature modulator, radio frequency attenuator are sequentially connected；
DAC is also connected with manipulator, and C/A code generators also connect carrier wave simultaneously and module and radio frequency attenuator occur.
Further, crystal oscillator and high-frequency crystal oscillator adopt M362 crystal oscillators.
Further, fpga chip of the C/A code generators using XC5VLX50T models.
Further, DAC adopts AD8138 chips.
Further, quadrature modulator adopts ADL5375 chips.
Further, radio frequency attenuator adopts hmc273ms10g chips.
Further, carrier wave occur the first transformator, DDS, the second transformator, wave filter that module includes being sequentially connected with,
Doubler.
Further, DDS adopts AD9956 chips.
This utility model mentality of designing is：
Based on suppression jamming machine pattern, pseudo-code modulation is carried out to carrier signal, formed and satellite signal spectrum feature phase
As band spectrum modulation radiofrequency signal, i.e. interference signal.Hostile navigation system receives interference signal and satellite-signal simultaneously, it is impossible to
Auto-correlation capture is carried out, so as to position.
Compared to the prior art, this utility model has the advantage that and beneficial effect：
（1）Modulated using pseudo-code, narrow-band interference signal can be exported, the reception frequency of GPS can be aimed at, realized being directed to
Property interference, jamming performance is more powerful.
（2）Output gain controllable, so as to be capable of achieving the adjustment of interference strength.
（3）Output frequency is adjustable, so as to carry out specific aim interference to the frequency range of each GPS positioning system.
Description of the drawings
Fig. 1 is circuit structure block diagram of the present utility model；
Fig. 2 is the circuit structure block diagram that carrier wave occurs module.
Specific embodiment
Specific embodiment of the present utility model is further described below in conjunction with accompanying drawing.
See Fig. 1, this utility model mainly includes two units of Base Band Unit and radio frequency unit, Base Band Unit include crystal oscillator,
C/A code generators and DAC（Digital to analog converter, digital analog converter）.Originally it is in being embodied as, brilliant
Shake using M362 crystal oscillators, fpga chip of the C/A code generators using XC5VLX50T models, DAC adopt AD8138 chips.Radio frequency
Unit includes that quadrature modulator, radio frequency attenuator, carrier wave occur module and high-frequency crystal oscillator, in being originally embodied as, quadrature modulator
Using ADL5375 chips, radio frequency attenuator adopts hmc273ms10g chips, high-frequency crystal oscillator to be also adopted by M362 crystal oscillators.
See Fig. 2, in being originally embodied as, carrier wave occurs module and further includes the first transformator, DDS（Direct
Digital Synthesizer, Direct Digital Synthesizer）, the second transformator, wave filter and doubler, the first transformation
Device and the second transformator adopt ETC1-1-3 chips, DDS to adopt AD9956 chips, wave filter to adopt LF-C80 chips, frequency multiplication
Device adopts PLL-22 chips.
In this utility model, Base Band Unit is used to produce baseband signal, radio frequency unit for by modulates baseband signals to penetrating
Frequency signal, and it is sent to antenna.In Base Band Unit, crystal oscillator is used for providing reference clock signal, and C/A code generators are used for producing C/
A code signals, DAC is for being converted into the baseband signal simulated by C/A code signals, and exports the quadrature modulator of radio frequency unit.
C/A code generators also produce carrier frequency control signal and attenuation control signal simultaneously, and carrier frequency control signal is used for controlling
There is the carrier frequency of module in carrier wave, attenuation control signal is used for input radio frequency attenuator, to control radio frequency attenuator output letter
Number gain, reach the strong and weak purpose of control interference.
Radio frequency unit includes that quadrature modulator, radio frequency attenuator, carrier wave occur module and high-frequency crystal oscillator.Quadrature modulator is used
Band spectrum modulation is carried out to baseband signal and carrier signal, and export narrowband modulation radiofrequency signal.High-frequency crystal oscillator is used for producing height
There is high frequency clock signal of the module for high-frequency crystal oscillator is produced and be converted into carrier signal and base is provided in frequency clock signal, carrier wave
The clock signal of tape cell.Radio frequency attenuator carries out gain control for the radiofrequency signal exported to quadrature modulator.
There is module and be used for producing high-frequency carrier signal in carrier wave, see Fig. 2, the high frequency clock signal input that high-frequency crystal oscillator is produced
First transformator, is converted into differential signal, and differential signal is imported into DDS, the controllable signal of DDS output frequencies.In view of this
Output signal is driven for electric current, converts thereof into transformation drive signal by the second transformator.Transformation drive signal is filtered again
Device is filtered, filtering clutter signal.Finally, Jing doubler is to quadrature modulator outgoing carrier signal.There is the input of module in carrier wave
Signal is the carrier frequency control signal that the high frequency clock signal that high-frequency crystal oscillator sends and C/A code generators send, its output letter
Number for carrier signal and it is supplied to the clock signal of C/A code generators.
Claims (8)
1. a kind of briquettability GPS jammer based on pseudo-code, is characterized in that：
Including Base Band Unit and radio frequency unit, wherein：
Base Band Unit includes crystal oscillator, C/A code generators and DAC, and crystal oscillator, C/A code generators and DAC are sequentially connected；Radio frequency unit
There is module and high-frequency crystal oscillator including quadrature modulator, radio frequency attenuator, carrier wave, high-frequency crystal oscillator, carrier wave occur module, positive intermodulation
Device processed, radio frequency attenuator are sequentially connected；
DAC is also connected with manipulator, and C/A code generators also connect carrier wave simultaneously and module and radio frequency attenuator occur.
2. the briquettability GPS jammer based on pseudo-code as claimed in claim 1, is characterized in that：
Described crystal oscillator and high-frequency crystal oscillator adopt M362 crystal oscillators.
3. the briquettability GPS jammer based on pseudo-code as claimed in claim 1, is characterized in that：
Fpga chip of the described C/A code generators using XC5VLX50T models.
4. the briquettability GPS jammer based on pseudo-code as claimed in claim 1, is characterized in that：
Described DAC adopts AD8138 chips.
5. the briquettability GPS jammer based on pseudo-code as claimed in claim 1, is characterized in that：
Described quadrature modulator adopts ADL5375 chips.
6. the briquettability GPS jammer based on pseudo-code as claimed in claim 1, is characterized in that：
Described radio frequency attenuator adopts hmc273ms10g chips.
7. the briquettability GPS jammer based on pseudo-code as claimed in claim 1, is characterized in that：
There is the first transformator that module includes being sequentially connected with, DDS, the second transformator, wave filter, doubler in described carrier wave.
8. the briquettability GPS jammer based on pseudo-code as claimed in claim 7, is characterized in that：
Described DDS adopts AD9956 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057614.4U CN206057578U (en) | 2016-09-18 | 2016-09-18 | Briquettability GPS jammer based on pseudo-code |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057614.4U CN206057578U (en) | 2016-09-18 | 2016-09-18 | Briquettability GPS jammer based on pseudo-code |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206057578U true CN206057578U (en) | 2017-03-29 |
Family
ID=58369849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621057614.4U Expired - Fee Related CN206057578U (en) | 2016-09-18 | 2016-09-18 | Briquettability GPS jammer based on pseudo-code |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206057578U (en) |
-
2016
- 2016-09-18 CN CN201621057614.4U patent/CN206057578U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Vendelin et al. | Microwave circuit design using linear and nonlinear techniques | |
| CN108333958B (en) | Multiplexing general aviation simulator | |
| CN105141560B (en) | A kind of multi-standard signal imitation device and method | |
| CN203135865U (en) | Mobile terminal for alleviating interference of LTE (Long Term Evolution) emission in GPS (Global Position System) | |
| CN103675767B (en) | A kind of ultra wide band low power radiofrequency signal generator and method thereof | |
| CN102545959B (en) | Multi-frequency-point broadband signal generator and signal processing method | |
| CN109379102A (en) | Multichannel frequency agility R-T unit | |
| CN103647575A (en) | 2-12GHz broadband microwave front-end circuit and 2-12GHz microwave signal receiving method | |
| CN103762979B (en) | Broadband frequency source for LTE channel simulator | |
| CN112379602A (en) | Radar radiation source signal simulation system capable of accurately controlling signal power | |
| CN103731181A (en) | Broadband signal generator | |
| CN103905087A (en) | Broadband frequency-hopping radio frequency receiving system | |
| CN206057578U (en) | Briquettability GPS jammer based on pseudo-code | |
| CN103326718B (en) | A kind of rf chain of rubidium frequency standard | |
| CN102739269A (en) | Digitalized radio frequency receiver with broadband | |
| CN101635696B (en) | VXI bus C-size double-groove width I/Q vector signal generation device | |
| CN110166162A (en) | Hand-held press device | |
| CN204465510U (en) | The frequency source of Low phase noise frequency agility Ku wave band and structure | |
| CN205176262U (en) | S wave band radar system frequency source | |
| CN203691396U (en) | Broadband signal-generator | |
| KR101437404B1 (en) | Apparatus and Method for frequency synthesizer | |
| CN205539481U (en) | Dual -frenquency point GPS jammer radio frequency front end | |
| CN202395753U (en) | 100MHz-850MHz broadband excitation signal source | |
| CN206807446U (en) | A kind of RF transceiver circuit system | |
| CN205142189U (en) | A multifrequency section transmitter for direct communication between train |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20170918 |