CN206452378U - A kind of carrier signal generation unit applied to Tacan tester - Google Patents
A kind of carrier signal generation unit applied to Tacan tester Download PDFInfo
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- CN206452378U CN206452378U CN201720152672.3U CN201720152672U CN206452378U CN 206452378 U CN206452378 U CN 206452378U CN 201720152672 U CN201720152672 U CN 201720152672U CN 206452378 U CN206452378 U CN 206452378U
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- cnd
- couplers
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- tacan
- generation unit
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Abstract
The utility model discloses a kind of carrier signal generation unit applied to Tacan tester, including signal generator and digital oscillator, the signal generator produces baseband signal, the baseband signal is connected by filtering interpolation algorithm with power amplifier, the output end of the power amplifier is connected by control line with CND couplers, pre-amplification circuit is connected with the input of CND couplers, the input of the pre-amplification circuit is connected by offset control circuit with TI attenuation networks, and the output end of TI attenuation networks is connected with digital oscillator, the input of the digital oscillator is also associated with phase-control circuit, two road signals are respectively completed and I, the multiplication operations of Q base band datas, complete the process of frequency conversion, and whole system structure design is simple, CND couplers whole system is separated using insulation crust with the external world, it is easy to exclude the interference of external magnetic field, signal receives strong, it is practical.
Description
Technical field
The utility model is related to carrier signal generation unit technical field, specially a kind of load applied to Tacan tester
Ripple signal generation unit.
Background technology
As science and technology is developed rapidly, microelectric technique, computer communication and network technology are developed rapidly, they
In being more widely applied for fields of measurement, e measurement technology obtains continuous development and progress, and it is empty to have evolved to foundation to today
Intend instrument system, but current carrier signal transmission is frequently present of the situation compared with telecommunication, signal is in transmitting procedure
Decay is extremely serious, causes signal to be often submerged among noise, at this moment needs Transmission system to have higher anti-interference, special
It is the ability of interference in terms of antinoise signal amplitude and distortion, while infringement spectrum effect not too much again, but many of in the market
Carrier signal generator signal is disturbed all than more serious, and noise jamming cannot be removed completely so that receive signal and detection letter
It is number all cumbersome.
Utility model content
To achieve the above object, the utility model provides following technical scheme：A kind of carrier wave applied to Tacan tester
Signal generation unit, including signal generator and digital oscillator, the signal generator produce baseband signal, the base band letter
Number it is connected by filtering interpolation algorithm with power amplifier, the output end of the power amplifier passes through control line and CND couplings
Clutch is connected, and pre-amplification circuit is connected with the input of CND couplers, and the input of the pre-amplification circuit passes through
Offset control circuit is connected with TI attenuation networks, and the TI attenuation networks are internally provided with CAN connecting interface, and TI
The output end of attenuation network is connected with digital oscillator, and the input of the digital oscillator is also associated with phase controlling electricity
Road, the inside of the CND couplers includes high pass coupler, and the high pass coupler is by combining inductance and digital analog converter phase
Connection, the output end of the digital analog converter is connected to oscillograph and low pass filter by control line, and the digital-to-analogue turns
The input of parallel operation is also connected by static storage RAM with phase accumulator.
As a kind of preferred technical scheme of the utility model, the digital analog converter is using processing core serial AD9762
Piece, and have crystal oscillator in the process chip internal preset of AD9762 series.
As a kind of preferred technical scheme of the utility model, the combination inductance is made up of load circuit with big inductance.
As a kind of preferred technical scheme of the utility model, the CND couplers whole system using insulation crust with
The external world is separated.
Compared with prior art, the beneficial effects of the utility model are：The carrier signal for being applied to Tacan tester is produced
Raw unit, is provided with phase accumulator, and phase accumulator is made up of full adder and register, utilizes filtering interpolation algorithm control
What is stored in the size of system output frequency processed, static storage RAM is the discrete amplitude values of a cycle signal, phase accumulator
Output as wave memorizer addressable address, with the continuous arrival of system clock, the waveform stored in wave memorizer
Range value is read out sequentially, and the amplitude sequence of the signal of output after digital analog converter and low pass filter by obtaining Direct Digital
Composite signal, and system can produce two-way, any ripple of 100MHz sample rates, dot frequency is any, have 64K waveforms to deposit per passage
Reservoir, the vertical resolution of 12, the modulation capability with FM, AM, PM, whole system is also used for generating using digital oscillator
High-frequency carrier wave, the output of digital controlled oscillator is also the same frequency orthogonal signalling that two-way phase differs 90 degree, this two roads signal
The multiplication operations with I, Q base band data are respectively completed, the process of frequency conversion is completed, and whole system structure design is simple, by CND couplings
Clutch whole system is separated using insulation crust with the external world, is easy to exclude the interference of external magnetic field, and signal receives strong, practicality
By force.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model modular structure schematic diagram；
Fig. 3 is the utility model phase-control circuit figure.
In figure：1- signal generators；2- baseband signals；3- filtering interpolation algorithms；4- power amplifiers；The preposition amplification electricity of 5-
Road；6-CND couplers；7- offset control circuits；8-TI attenuation networks；9- digital oscillators；10- phase-control circuits；11- is high
Logical coupler；12- combines inductance；13- digital analog converters；14- oscillographs；15- low pass filters；16- static storages RAM；17-
Phase accumulator；18-CAN bus connection interfaces.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Embodiment：
Fig. 1 and Fig. 2 are referred to, the utility model provides a kind of technical scheme：A kind of carrier wave applied to Tacan tester
Signal generation unit, including signal generator 1 and digital oscillator 9, the signal generator 1 produce baseband signal 2, the base
Band signal 2 is connected by filtering interpolation algorithm 3 with power amplifier 4, and the output end of the power amplifier 4 passes through control line
It is connected with CND couplers 6, pre-amplification circuit 5, the pre-amplification circuit 5 is connected with the input of CND couplers 6
Input be connected by offset control circuit 7 with TI attenuation networks 8, the TI attenuation networks 8 to be internally provided with CAN total
Line connecting interface 18, and the output end of TI attenuation networks 8 is connected with digital oscillator 9, the input of the digital oscillator 9
Phase-control circuit 10 is also associated with, the inside of the CND couplers 6 includes high pass coupler 11, the high pass coupler 11
It is connected by combining inductance 12 with digital analog converter 13, the output end of the digital analog converter 13 is connected respectively by control line
There are oscillograph 14 and low pass filter 15, the input of the digital analog converter 13 is also tired out by static storage RAM16 and phase
Plus device 17 is connected.
Preferably, the digital analog converter 13 uses the process chip of AD9762 series, and at the place of AD9762 series
Reason chip internal is preset with crystal oscillator；The combination inductance 12 is made up of load circuit with big inductance；The CND couplers 6 are whole
System is separated using insulation crust with the external world.
Specifically used mode and advantage：This is applied to the carrier signal generation unit of Tacan tester, is provided with phase and tires out
Plus device, and phase accumulator is made up of full adder and register, utilizes the big of filtering interpolation algorithm control system output frequency
Small, what is stored in static storage RAM is the discrete amplitude values of a cycle signal, and the output of phase accumulator is used as Waveform storage
The addressable address of device, with the continuous arrival of system clock, the wave-shape amplitude value stored in wave memorizer is read out sequentially, defeated
The amplitude sequence of the signal gone out is by obtaining direct digital synthesizers signal, and the energy of system after digital analog converter and low pass filter
Two-way, any ripple of 100MHz sample rates are produced, dot frequency is any, has 64K wave memorizers, the vertical resolution of 12 per passage
Rate, the modulation capability with FM, AM, PM, whole system is also used for generating high-frequency carrier wave using digital oscillator, and numerical control is shaken
The output for swinging device is also the same frequency orthogonal signalling that two-way phase differs 90 degree, and this two roads signal is respectively completed and I, Q base band number
According to multiplication operations, the process of frequency conversion is completed, and whole system structure design is simple, by CND couplers whole system using exhausted
Edge shell is separated with the external world, is easy to exclude the interference of external magnetic field, signal receives strong, practical.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (4)
1. a kind of carrier signal generation unit applied to Tacan tester, it is characterised in that：Including signal generator（1）Sum
Word oscillator（9）, the signal generator（1）Produce baseband signal（2）, the baseband signal（2）Pass through filtering interpolation algorithm
（3）With power amplifier（4）It is connected, the power amplifier（4）Output end pass through control line and CND couplers（6）Phase
Connection, in CND couplers（6）Input be connected with pre-amplification circuit（5）, the pre-amplification circuit（5）Input
Pass through offset control circuit（7）With TI attenuation networks（8）It is connected, the TI attenuation networks（8）Be internally provided with CAN
Connecting interface（18）, and TI attenuation networks（8）Output end and digital oscillator（9）It is connected, the digital oscillator（9）'s
Input is also associated with phase-control circuit（10）, the CND couplers（6）Inside include high pass coupler（11）, it is described
High pass coupler（11）By combining inductance（12）With digital analog converter（13）It is connected, the digital analog converter（13）Output
End is connected to oscillograph by control line（14）And low pass filter（15）, the digital analog converter（13）Input also
Pass through static storage RAM（16）With phase accumulator（17）It is connected.
2. a kind of carrier signal generation unit applied to Tacan tester according to claim 1, it is characterised in that：Institute
State digital analog converter（13）There is crystalline substance using the process chip of AD9762 series, and in the process chip internal preset of AD9762 series
Shake.
3. a kind of carrier signal generation unit applied to Tacan tester according to claim 1, it is characterised in that：Institute
State combination inductance（12）It is made up of load circuit with big inductance.
4. a kind of carrier signal generation unit applied to Tacan tester according to claim 1, it is characterised in that：Institute
State CND couplers（6）Whole system is separated using insulation crust with the external world.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152672.3U CN206452378U (en) | 2017-02-20 | 2017-02-20 | A kind of carrier signal generation unit applied to Tacan tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152672.3U CN206452378U (en) | 2017-02-20 | 2017-02-20 | A kind of carrier signal generation unit applied to Tacan tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206452378U true CN206452378U (en) | 2017-08-29 |
Family
ID=59666658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720152672.3U Expired - Fee Related CN206452378U (en) | 2017-02-20 | 2017-02-20 | A kind of carrier signal generation unit applied to Tacan tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206452378U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807351A (en) * | 2017-11-28 | 2018-03-16 | 天津七六四通信导航技术有限公司 | A kind of Tacan test and supervising device |
| CN108964735A (en) * | 2018-07-17 | 2018-12-07 | 深圳市金溢科技股份有限公司 | A kind of ETC phased array beam shaping system, method and apparatus for measuring road |
-
2017
- 2017-02-20 CN CN201720152672.3U patent/CN206452378U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807351A (en) * | 2017-11-28 | 2018-03-16 | 天津七六四通信导航技术有限公司 | A kind of Tacan test and supervising device |
| CN107807351B (en) * | 2017-11-28 | 2024-05-07 | 天津七六四通信导航技术有限公司 | Takang test and monitoring device |
| CN108964735A (en) * | 2018-07-17 | 2018-12-07 | 深圳市金溢科技股份有限公司 | A kind of ETC phased array beam shaping system, method and apparatus for measuring road |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170829 Termination date: 20180220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |