CN205160501U - GPS signal interference ware - Google Patents
GPS signal interference ware Download PDFInfo
- Publication number
- CN205160501U CN205160501U CN201521021764.5U CN201521021764U CN205160501U CN 205160501 U CN205160501 U CN 205160501U CN 201521021764 U CN201521021764 U CN 201521021764U CN 205160501 U CN205160501 U CN 205160501U
- Authority
- CN
- China
- Prior art keywords
- resistance
- connects
- module
- electric capacity
- voltage
- 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
- Amplifiers (AREA)
Abstract
The utility model discloses a GPS signal interference ware, including the frequency synthesis module, the noise generator module, radio -frequency amplification module and power module, power module is the frequency synthesis module, noise generator module and the power supply of radio -frequency amplification module, the frequency synthesis module includes crystal oscillator, the phase discriminator, a loop filter, voltage controlled oscillator and branching unit, the output of crystal oscillator and branching unit is connected to the input of phase discriminator, the output of phase discriminator passes through the input that loop filter connects voltage controlled oscillator, the input of branching unit is connected to voltage controlled oscillator's output, the output of noise generator module is still connected to voltage controlled oscillator's input, the input of radio -frequency amplification module is still connected to the output of branching unit. The utility model discloses stable performance, convenient to use can go on the GPS signal of L1 wave band disturbing the parasexuality, ensure in a particular case's information security.
Description
Technical field
The utility model relates to gps signal perturbation technique field, particularly relates to a kind of gps signal interference unit.
Background technology
In modern society, the extensive use of GPS navigation location, though be very easy to the life of people, the crowd located by gps signal for inconvenience or occasion, also result in certain puzzlement.The publicity of GPS navigation frequency, determining the conflicting mode of gps signal is alignment frequency interferences, the usual complex structure of existing GPS interference unit and cost is higher, unstable properties, and interference effect is poor, cannot meet people and shield demand reliably to gps signal.
Utility model content
The purpose of this utility model is to provide a kind of stable performance, the simple gps signal interference unit of structure, can carry out alignment interference, prevent positional information from revealing to the gps signal of L1 wave band.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of gps signal interference unit, comprise frequency synthesis module, noise generation module, RF Amplifier Module and power module, described power module is frequency synthesis module, noise generation module and RF Amplifier Module are powered, described frequency synthesis module comprises crystal oscillator, phase discriminator, loop filter, voltage controlled oscillator and splitter, the input of phase discriminator connects the output of crystal oscillator and splitter, the output of phase discriminator connects the input of voltage controlled oscillator by loop filter, the output of voltage controlled oscillator connects the input of splitter, the input of voltage controlled oscillator also connects the output of noise generation module, the output of splitter also connects the input of RF Amplifier Module.
Described loop filter comprises the first resistance, second resistance, 3rd resistance, 4th resistance, first electric capacity, second electric capacity and operational amplifier, the first end of the first resistance is connected power supply with the first end of the second resistance, the inverting input of the second end concatenation operation amplifier of the first resistance, second end of the first resistance also connects the first end of the 3rd resistance, second end of the 3rd resistance passes through the output of the first electric capacity concatenation operation amplifier, the in-phase input end of the second end concatenation operation amplifier of the second resistance, second end of the second resistance also connects the first end of the 4th resistance, second end of the 4th resistance is by the second capacity earth.
Described noise generation module comprises divider resistance, the 3rd electric capacity, voltage stabilizing didoe, transistor and audio frequency amplifier, the first end of divider resistance connects power supply, second end of divider resistance connects the negative pole of voltage stabilizing didoe and the first end of the 3rd electric capacity, the plus earth of voltage stabilizing didoe, the second end of the 3rd electric capacity connects audio frequency amplifier by transistor.
Described power module comprises 3V voltage cell, 5V voltage cell, 6.8V voltage cell and 8V voltage cell, 3V voltage cell comprises positive voltage pressurizer LM317 and peripheral circuit thereof, first pin of positive voltage pressurizer LM317 connects the first end of regulating resistor, second end ground connection of regulating resistor, second pin of positive voltage pressurizer LM317 connects the first end of the 7th resistance and the first end of the 4th electric capacity, second end of the 7th resistance connects the first end of regulating resistor, second end of the 4th electric capacity connects the second end of regulating resistor, first pin of positive voltage pressurizer LM317 connects the first end of power supply and the 5th electric capacity, second end of the 5th electric capacity connects the second end of regulating resistor.
The utility model utilizes frequency synthesis module to produce L1 frequency signal; and by noise generation module to L1 frequency signal additional noise; export after the L1 frequency signal of RF Amplifier Module to additional noise carries out power amplification; realize the interference to L1 wave band gps signal, and then the positional information under special circumstances or occasion is protected.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of the utility model loop filter;
Fig. 3 is the circuit theory diagrams of the utility model noise generation module;
Fig. 4 is the circuit theory diagrams of the utility model 3V voltage cell.
Embodiment
As shown in Figures 1 to 4, a kind of gps signal interference unit described in the utility model, comprise frequency synthesis module, noise generation module, RF Amplifier Module and power module, the input of the output rate of connections synthesis module of noise generation module, the output of frequency synthesis module connects the input of RF Amplifier Module, and power module is frequency synthesis module, noise generation module and RF Amplifier Module are powered.
Frequency synthesis module comprises crystal oscillator, phase discriminator, loop filter, voltage controlled oscillator and splitter, the input of phase discriminator connects the output of crystal oscillator and splitter, the output of phase discriminator connects the input of voltage controlled oscillator by loop filter, the output of voltage controlled oscillator connects the input of splitter, the input of voltage controlled oscillator also connects the output of noise generation module, and the output of splitter also connects the input of RF Amplifier Module.Phase discriminator, loop filter, voltage controlled oscillator and splitter form loop, the radiofrequency signal that wherein voltage controlled oscillator exports forms two parts after splitter, a part is fed back in phase discriminator carries out frequency division, another part is by exporting after RF Amplifier Module, phase discriminator is gone back the reference signal of receiving crystal oscillator output simultaneously and is carried out frequency division, by comparing the signal phase after two-way frequency division, producing the error voltage corresponding to two paths of signals instantaneous phase difference and exporting loop filter to.
Loop filter comprises the first resistance R1, second resistance R2, 3rd resistance R3, 4th resistance R4, first electric capacity C1, second electric capacity C2 and operational amplifier, the first end of the first resistance R1 is connected power supply with the first end of the second resistance R2, the inverting input of the second end concatenation operation amplifier of the first resistance R1, second end of the first resistance R1 also connects the first end of the 3rd resistance R3, second end of the 3rd resistance R3 passes through the output of the first electric capacity C1 concatenation operation amplifier, the in-phase input end of the second end concatenation operation amplifier of the second resistance R2, second end of the second resistance R2 also connects the first end of the 4th resistance R4, second end of the 4th resistance R4 is by the second electric capacity C2 ground connection.Loop filter can carry out low-pass filtering, the radio-frequency component of filtering error voltage and noise to the error voltage that phase discriminator exports, and ensures the stability of system.
Noise generation module comprises divider resistance R5, the 3rd electric capacity C3, voltage stabilizing didoe, transistor and audio frequency amplifier, the first end of divider resistance R5 connects power supply, second end of divider resistance R5 connects the negative pole of voltage stabilizing didoe and the first end of the 3rd electric capacity C3, the plus earth of voltage stabilizing didoe, second end of the 3rd electric capacity C3 connects audio frequency amplifier by transistor.Noise generation module is by providing puncture voltage to voltage stabilizing didoe, make it to be operated in breakdown conditions, PN junction can produce abundant avalanche noise in breakdown process, avalanche noise exports voltage controlled oscillator to after the Hyblid Buffer Amplifier of transistor and the amplification filtering of audio frequency amplifier, the error voltage exported with loop filter is mixed to form noise voltage control signal, and voltage controlled oscillator can produce the radiofrequency signal of the L1 frequency of subsidiary noise under the effect of noise voltage control signal.
Power module comprises 3V voltage cell, 5V voltage cell, 6.8V voltage cell and 8V voltage cell, 3V voltage cell is frequency synthesis module for power supply, 6.8V voltage cell is that noise generation module is powered, and 5V voltage cell and 8V voltage cell are that RF Amplifier Module is powered.Wherein 3V voltage cell comprises positive voltage pressurizer LM317 and peripheral circuit thereof, first pin of positive voltage pressurizer LM317 connects the first end of regulating resistor R6, the second end ground connection of regulating resistor R6, second pin of positive voltage pressurizer LM317 connects the first end of the 7th resistance R7 and the first end of the 4th electric capacity C4, second end of the 7th resistance R7 connects the first end of regulating resistor R6, second end of the 4th electric capacity C4 connects second end of regulating resistor R6, first pin of positive voltage pressurizer LM317 connects the first end of power supply and the 5th electric capacity C5, second end of the 5th electric capacity C5 connects second end of regulating resistor R6.
Operation principle of the present utility model is: the crystal oscillator of frequency synthesis module, phase discriminator, loop filter and voltage controlled oscillator can produce the radiofrequency signal of L1 frequency, by the noise signal exported at the voltage tuning end additional noise generation module of voltage controlled oscillator, make the subsidiary noise of L1 frequency signal exported by splitter, export after the L1 frequency signal of RF Amplifier Module to additional noise carries out power amplification, realize the interference to L1 wave band gps signal.The utility model stable performance, easy to use, alignment interference can be carried out to the gps signal of L1 wave band, ensure information security in particular cases.
Claims (4)
1. a gps signal interference unit, it is characterized in that: comprise frequency synthesis module, noise generation module, RF Amplifier Module and power module, described power module is frequency synthesis module, noise generation module and RF Amplifier Module are powered, described frequency synthesis module comprises crystal oscillator, phase discriminator, loop filter, voltage controlled oscillator and splitter, the input of phase discriminator connects the output of crystal oscillator and splitter, the output of phase discriminator connects the input of voltage controlled oscillator by loop filter, the output of voltage controlled oscillator connects the input of splitter, the input of voltage controlled oscillator also connects the output of noise generation module, the output of splitter also connects the input of RF Amplifier Module.
2. a kind of gps signal interference unit as claimed in claim 1, it is characterized in that: described loop filter comprises the first resistance, second resistance, 3rd resistance, 4th resistance, first electric capacity, second electric capacity and operational amplifier, the first end of the first resistance is connected power supply with the first end of the second resistance, the inverting input of the second end concatenation operation amplifier of the first resistance, second end of the first resistance also connects the first end of the 3rd resistance, second end of the 3rd resistance passes through the output of the first electric capacity concatenation operation amplifier, the in-phase input end of the second end concatenation operation amplifier of the second resistance, second end of the second resistance also connects the first end of the 4th resistance, second end of the 4th resistance is by the second capacity earth.
3. a kind of gps signal interference unit as claimed in claim 2, it is characterized in that: described noise generation module comprises divider resistance, the 3rd electric capacity, voltage stabilizing didoe, transistor and audio frequency amplifier, the first end of divider resistance connects power supply, second end of divider resistance connects the negative pole of voltage stabilizing didoe and the first end of the 3rd electric capacity, the plus earth of voltage stabilizing didoe, the second end of the 3rd electric capacity connects audio frequency amplifier by transistor.
4. a kind of gps signal interference unit as claimed in claim 3, it is characterized in that: described power module comprises 3V voltage cell, 5V voltage cell, 6.8V voltage cell and 8V voltage cell, 3V voltage cell comprises positive voltage pressurizer LM317 and peripheral circuit thereof, first pin of positive voltage pressurizer LM317 connects the first end of regulating resistor, second end ground connection of regulating resistor, second pin of positive voltage pressurizer LM317 connects the first end of the 7th resistance and the first end of the 4th electric capacity, second end of the 7th resistance connects the first end of regulating resistor, second end of the 4th electric capacity connects the second end of regulating resistor, first pin of positive voltage pressurizer LM317 connects the first end of power supply and the 5th electric capacity, second end of the 5th electric capacity connects the second end of regulating resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521021764.5U CN205160501U (en) | 2015-12-10 | 2015-12-10 | GPS signal interference ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521021764.5U CN205160501U (en) | 2015-12-10 | 2015-12-10 | GPS signal interference ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205160501U true CN205160501U (en) | 2016-04-13 |
Family
ID=55696141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521021764.5U Expired - Fee Related CN205160501U (en) | 2015-12-10 | 2015-12-10 | GPS signal interference ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205160501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533609A (en) * | 2016-12-15 | 2017-03-22 | 深圳市飞思腾科技有限公司 | Digital signal interferometer |
| CN108496095A (en) * | 2017-04-07 | 2018-09-04 | 深圳市大疆创新科技有限公司 | Signal interference circuit and equipment |
-
2015
- 2015-12-10 CN CN201521021764.5U patent/CN205160501U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533609A (en) * | 2016-12-15 | 2017-03-22 | 深圳市飞思腾科技有限公司 | Digital signal interferometer |
| CN108496095A (en) * | 2017-04-07 | 2018-09-04 | 深圳市大疆创新科技有限公司 | Signal interference circuit and equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204180052U (en) | The phase-locked frequency hopping synthesizer of a kind of X-band shift frequency | |
| CN201828785U (en) | Big dipper/GPS bimodulus time service module | |
| CN203574618U (en) | Radio frequency signal source based on broadband frequency synthesizer ADF4351 | |
| CN205160501U (en) | GPS signal interference ware | |
| CN104135280A (en) | Frequency source circuit with harmonic generation and frequency mixing | |
| CN105049035B (en) | A kind of multi-mode miniaturization Low phase noise broadband point frequency combiner circuit and method | |
| CN201601665U (en) | Phase-locked difference frequency output frequency synthesizer | |
| CN103036581A (en) | Superregenerative receiver | |
| CN203039670U (en) | 1222MHz frequency synthesis unit | |
| CN203457138U (en) | Frequency synthesizer | |
| CN201571017U (en) | Dislocation locking prevention mixing circuit of mixing phase-locked loop | |
| CN203166873U (en) | Atom frequency scale | |
| CN101834603A (en) | Orthogonal input and orthogonal output frequency-halving device with low power consumption and low stray | |
| CN104410409A (en) | Self-adaptive multi-clock production device and method | |
| CN203522649U (en) | Low-phase noise signal generator with switch filter | |
| CN206833004U (en) | Triple channel wireless seismic detector data collecting system | |
| CN208190632U (en) | When frequency module | |
| CN102638262A (en) | Miniature phase-locked frequency synthesizer | |
| CN202535340U (en) | Micro phase lock frequency synthesizer | |
| CN204046573U (en) | Parallel DDS encourages PLL frequency synthesizer | |
| CN104750001A (en) | Frequency synthesizing circuit for achieving satellite navigation anti-interference antenna | |
| CN205356304U (en) | Local oscillator module is advanced in low phase noise small step based on multiple ring phase locking | |
| CN202565254U (en) | Ultrashort wave receiver second local oscillator circuit with low power consumption and high phase noise index | |
| CN205105195U (en) | A wide band generating circuit that is used for radio general measuring instrument radio frequency local oscillator circuit | |
| CN205405150U (en) | Standard sinusoidal signal generating circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160413 Termination date: 20201210 |