CN109507650A - A kind of microwave lands digital multipath interference signal analogy method and system - Google Patents
A kind of microwave lands digital multipath interference signal analogy method and system Download PDFInfo
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- CN109507650A CN109507650A CN201811318976.8A CN201811318976A CN109507650A CN 109507650 A CN109507650 A CN 109507650A CN 201811318976 A CN201811318976 A CN 201811318976A CN 109507650 A CN109507650 A CN 109507650A
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- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/38—Jamming means, e.g. producing false echoes
Abstract
The invention discloses a kind of digital multipath interference signal analogy method of microwave landing and systems, comprising: setting operating mode: common orientation complete period signal or high speed orientation complete period signal；Corresponding time-base signal is generated when FPGA works according to operating mode, current operation mode is judged by time-base signal, the generation time of signal is controlled according to current operation mode, to generate corresponding signal；Output signal type is set；Signal type includes: without interference or with interference；Export the signal of default operating mode and default output signal type；The selection instruction for receiving user's selection signal from output signal exports main path analog signal according to selection instruction, or, main path analog signal and multipath analog signal；Main path analog signal and multipath analog signal are overlapped, multipath interference signal is obtained；To main path analog signal or multipath interference signal, analog signal is converted by digital analog converter, generates baseband signal by signal conditioning circuit.
Description
Technical field
Digital multipath interference signal analogy method and system this disclosure relates to which a kind of microwave lands.
Background technique
Multipath interference signal is an interference signal relative to main path, for testing the anti-interference energy of airboarne receiver
Power.The simulation of microwave landing multipath interference signal traditionally uses the implementation based on analog circuit, passes through different simulations
Circuit realizes corresponding Main path signal and multipath interference signal, is believed corresponding function by switch and superimposer then in conjunction with synchronous
It number is combined, generates corresponding analog signal.This method hardware circuit design is complicated, and at high cost, flexibility is poor, and volume is big,
It is inconvenient to carry.Meanwhile it is relatively not stringent to Clock management, guarantee that signal accuracy needs to spend and consumes many debug times,
It is difficult to carry out accurately synchronism output.
With the rapid development of digital circuit technique, the Digital Realization of analog circuit increasingly becomes a kind of trend,
It improves system performance and precision aspect plays an important role, while reducing the development difficulty of circuit, it is no longer necessary to designer's tool
There are analog circuit exploitation abundant and commissioning experience.The mode of conventionally employed muti-piece analog circuit splicing generates the mould of multi-path jamming
Quasi- signal, complex circuit designs, equipment volume is big, and circuit maintenance is difficult, and the precision of simulation system is difficult to improve.
The simulation of microwave current landing multipath interference signal generally uses the implementation based on analog circuit, as shown in Figure 1.
Microwave landing simulation signal is divided into common orientation complete period signal and high speed orientation complete period signal, in common and two kinds of moulds of high speed
It is switched under formula.Common orientation complete period signal is respectively by bearing signal, reverse signal, elevation signals and data word signal
It is constituted according to certain standard, since data word signal does not need to carry out multipath interference signal simulation, so not indicating in block diagrams.
High speed orientation complete period signal is made of high speed orientation signal, reverse signal, elevation signals and data word signal respectively, equally
Follow certain standard.To sum up needing to realize bearing signal, high speed orientation signal, reverse signal and elevation signals etc. four
Kind signal and corresponding multipath analog signal, it is therefore desirable to which 8 partial simulation circuits are realized, while carrying out letter according to standard
The switching of number switch and Signal averaging, realize that difficulty is bigger, the problems such as being easy to produce overshoot.Multi-path jamming analog signal with
Synchronization signal is associated, when being synchronized to corresponding signal, just can produce the multipath interference signal of corresponding signal.The implementation
To accurate clock management scheme is lacked, realizes that synchronization signal is difficult, be extremely difficult to extra high accuracy.
Existing generally to realize that lower microwave landing multipath interference signal is simulated by analog circuit mode, implementation is cumbersome,
Complex circuit designs, equipment volume is big, and development efficiency is low, more demanding to designer.
Summary of the invention
In order to solve the deficiencies in the prior art, present disclose provides a kind of digital multipath interference signal simulations of microwave landing
Method and system rely on the new technology of Digital Electronic Technique, and using digital multi-path signal multiplex mode, and strictly, matching is same
Walk signal output.This method reduce the design difficulties of circuit, reduce the development time, improve the stability and signal of system
Precision, while the flexibility of system is improved, multiple functions can be generated on the basis of not changing hardware circuit.
In a first aspect, present disclose provides a kind of digital multipath interference signal analogy methods of microwave landing；
A kind of digital multipath interference signal analogy method of microwave landing, comprising:
Step (1): setting operating mode, the operating mode, comprising: common orientation complete period signal or high speed orientation are complete
Periodic signal；Corresponding time-base signal is generated according to operating mode, current operation mode is judged by time-base signal, according to current
The generation time of operating mode control signals, to generate corresponding signal；
Step (2): setting output signal type；The signal type includes: without interference or with interference；
Step (3): output signal: the signal of default operating mode and default output signal type is exported；
Step (4): receiving the selection instruction of user's selection signal from output signal, exports main path according to selection instruction
Analog signal, or, main path analog signal and multipath analog signal；
Step (5): Signal averaging: main path analog signal and multipath analog signal are overlapped, multi-path jamming is obtained
Signal；
Step (6): the multipath interference signal of main path analog signal or step (5) to step (4) passes through digital-to-analogue conversion
Device is converted into analog signal, generates baseband signal by signal conditioning circuit.
As some possible implementations, the common orientation complete period signal, comprising: bearing signal, reverse letter
Number or elevation signals；The high speed orientation complete period signal, comprising: high speed orientation signal, reverse signal or elevation signals.
As some possible implementations, the specific steps of step (3) are as follows:
Step (31): if it is common orientation complete period signal and without interference, then bearing signal, reverse signal are exported
Or elevation signals；
Step (32): if it is common orientation complete period signal and with interference, then it is same with bearing signal to export bearing signal
The orientation multipath interference signal of step, the reverse signal reverse multipath interference signal synchronous with reverse signal, or, the elevation angle is believed
Number elevation angle multipath interference signal synchronous with elevation signals；
Step (33): if it is high speed orientation complete period signal and without interference, then high speed orientation signal, reverse are exported
Signal or elevation signals；
Step (34): if it is high speed orientation complete period signal and with interference, then high speed orientation signal and high speed side are exported
The synchronous high speed multipath interference signal of position signal, the reverse signal reverse multipath interference signal synchronous with reverse signal,
Alternatively, elevation signals and the elevation angle multipath interference signal synchronous with elevation signals.
As some possible implementations, the specific steps of step (4) are as follows:
Step (41): if user's selection is output signal in step (31), by the signal of selection according to when base
Signal forms main path analog signal；
Step (42): if user's selection is output signal in step (32), by the bearing signal of selection, negative side
Position signal or elevation signals form main path analog signal, select orientation multipath interference signal, reverse multipath interference signal or
Coming in the multipath interference signal of the elevation angle generates multipath analog signal；
Step (43): if user's selection is output signal in step (33), by the signal of selection according to when base
Signal forms main path analog signal；
Step (44): if user's selection is output signal in step (34), by the high speed orientation signal of selection,
Reverse signal or elevation signals form main path analog signal, select high speed orientation multipath interference signal, reverse multipath dry
It disturbs coming in signal or elevation angle multipath interference signal and generates multipath analog signal.
As some possible implementations, the specific steps of the step (5) are as follows:
Step (51): by step (42) main path analog signal and multipath analog signal be overlapped, multipath simulation
Signal averaging is into corresponding main path analog signal, to generate multi-path jamming；
Step (52): by step (44) main path analog signal and multipath analog signal be overlapped；Multipath simulation
Signal averaging is into corresponding main path analog signal, to generate multi-path jamming.
As some possible implementations, the specific steps of the step (6) are as follows:
Step (6): the signal of step (41), step (43), step (51) or step (52) is exported, digital-to-analogue is passed through
Converter is converted into analog signal, generates baseband signal by signal conditioning circuit.
As some possible implementations, time-base signal is generated according to the requirement of national military standard GJB 2275-95.
Common orientation complete period signal is similar with the time-base signal of high speed orientation complete period signal, due to high speed orientation timing
Shorter, high speed orientation complete period signal is more compact.
As some possible implementations, the orientation multipath interference signal is mapped according to bearing signal,
Multipath interference signal is that parameter setting is different from corresponding signal, and implementation is identical, so being modified by parameter, can be mapped
Corresponding multipath interference signal is generated, following multipath interference signal is similar；
As some possible implementations, the high speed orientation multipath interference signal is mapped according to high speed orientation signal
It obtains；
As some possible implementations, the reverse multipath interference signal is to map to obtain according to reverse signal
's；
As some possible implementations, the elevation angle multipath interference signal is mapped according to elevation signals.
Second aspect, the disclosure additionally provide a kind of digital multipath interference signal simulation system of microwave landing；
The digital multipath interference signal simulation system of a kind of microwave landing, comprising: sequentially connected FPGA, DAC digital-to-analogue turns
Parallel operation and signal conditioning circuit；The FPGA storage inside has computer program, when the computer program is run, in completion
State step described in method.
Compared with prior art, the beneficial effect of the disclosure is:
With the development of electronic technology, it realizes and provides the foundation and implementation method for the total digitalization of multipath interference signal.
Digital multipath interference signal analogy method avoids traditional simulated implementation mode, greatly improve whole system precision and
Stability facilitates system to carry out Function Extension, and does not need additional functional circuit.Design difficulty reduces simultaneously, to design
The requirement of person reduces, and circuit is simple, and equipment volume can become very little.
The implementation for changing original analog circuit, the digital reality combined using FPGA, DAC and signal conditioning circuit
Existing mode.The complexity for reducing circuit system reduces volume and cost all accordingly.
According to main path and multipath feature, Main path signal is mapped as to the mode of multi-path signal, it is multiple in conjunction with logic
Mode generates multipath interference signal, and according to when base generate accurate synchronization signal.
Timing optimization is carried out to FPGA code, system stability is improved using development tools such as parallel pipelines, when use
The means such as order constrained guarantee that FPGA work in higher working frequency, improves the output accuracy of whole system.
Realize that the generation of the multipath interference signal of microwave landing simulator, groundwork are concentrated on using Digital Way
FPGA code is write, it is no longer necessary to which designer has Analog Circuit Design abundant and commissioning experience.
Circuit design is simple, and module is small in size, reduces production cost, while improving the maintainability of system, can not change
Under the premise of becoming hardware circuit, FPGA code is only modified, the corresponding functions such as symmetry, waveform shape variation can be increased.
Using digital multi-path signal multiplex mode, Main path signal is mapped as by multipath according to poly-diameter channel characteristic and is done
Signal is disturbed, using the principle of logical multiplexing, reduces code development quantity, sufficiently can develop skill using FPGA parallel pipeline etc.
Ingeniously, the stability of system is improved.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the prior art of the disclosure；
Fig. 2 is the implementation of the disclosure.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
The invention proposes a kind of digital multipath interference signal analogy methods of microwave landing, implement block diagram such as Fig. 2
It is shown.
A kind of embodiment 1: the digital multipath interference signal analogy method of microwave landing, comprising:
Step (1): setting operating mode, the operating mode, comprising: common orientation complete period signal or high speed orientation are complete
Periodic signal；Corresponding time-base signal is generated when FPGA works according to operating mode, and work at present mould is judged by time-base signal
Formula controls the generation time of signal according to current operation mode, to generate corresponding signal；
Step (2): setting output signal type；The signal type includes: without interference or with interference；
Step (3): output signal: the signal of default operating mode and default output signal type is exported；
Step (4): receiving the selection instruction of user's selection signal from output signal, exports main path according to selection instruction
Analog signal, or, main path analog signal and multipath analog signal；
Step (5): Signal averaging: main path analog signal and multipath analog signal are overlapped, multi-path jamming is obtained
Signal；
Step (6): the multipath interference signal of main path analog signal or step (5) to step (4) passes through digital-to-analogue conversion
Device is converted into analog signal, generates baseband signal by signal conditioning circuit.
As some possible embodiments, the common orientation complete period signal, comprising: bearing signal, reverse signal
Or elevation signals；The high speed orientation complete period signal, comprising: high speed orientation signal, reverse signal or elevation signals.
As some possible embodiments, the specific steps of step (3) are as follows:
Step (31): if it is common orientation complete period signal and without interference, then bearing signal, reverse signal are exported
Or elevation signals；
Step (32): if it is common orientation complete period signal and with interference, then it is same with bearing signal to export bearing signal
The orientation multipath interference signal of step, the reverse signal reverse multipath interference signal synchronous with reverse signal, or, the elevation angle is believed
Number elevation angle multipath interference signal synchronous with elevation signals；
Step (33): if it is high speed orientation complete period signal and without interference, then high speed orientation signal, reverse are exported
Signal or elevation signals；
Step (34): if it is high speed orientation complete period signal and with interference, then high speed orientation signal and high speed side are exported
The synchronous high speed multipath interference signal of position signal, the reverse signal reverse multipath interference signal synchronous with reverse signal,
Alternatively, elevation signals and the elevation angle multipath interference signal synchronous with elevation signals.
As some possible embodiments, the specific steps of step (4) are as follows:
Step (41): if user's selection is output signal in step (31), by the signal of selection according to when base
Signal forms main path analog signal；
Step (42): if user's selection is output signal in step (32), by the bearing signal of selection, negative side
Position signal or elevation signals form main path analog signal, select orientation multipath interference signal, reverse multipath interference signal or
Coming in the multipath interference signal of the elevation angle generates multipath analog signal；
Step (43): if user's selection is output signal in step (33), by the signal of selection according to when base
Signal forms main path analog signal；
Step (44): if user's selection is output signal in step (34), by the high speed orientation signal of selection,
Reverse signal or elevation signals form main path analog signal, select high speed orientation multipath interference signal, reverse multipath dry
It disturbs coming in signal or elevation angle multipath interference signal and generates multipath analog signal.
As some possible embodiments, the specific steps of the step (5) are as follows:
Step (51): by step (42) main path analog signal and multipath analog signal be overlapped, multipath simulation
Signal averaging is into corresponding main path analog signal, to generate multi-path jamming；
Step (52): by step (44) main path analog signal and multipath analog signal be overlapped；Multipath simulation
Signal averaging is into corresponding main path analog signal, to generate multi-path jamming.
As some possible embodiments, the specific steps of the step (6) are as follows:
Step (6): the signal of step (41), step (43), step (51) or step (52) is exported, digital-to-analogue is passed through
Converter is converted into analog signal, generates baseband signal by signal conditioning circuit.
As some possible embodiments, time-base signal is generated according to the requirement of national military standard GJB 2275-95.
Common orientation complete period signal is similar with the time-base signal of high speed orientation complete period signal, due to high speed orientation timing
Shorter, high speed orientation complete period signal is more compact.
As some possible embodiments, the orientation multipath interference signal is mapped according to bearing signal, more
Diameter interference signal is that parameter setting is different from corresponding signal, and implementation is identical, so modifying by parameter, can map life
At corresponding multipath interference signal, following multipath interference signal is similar；
As some possible embodiments, the high speed orientation multipath interference signal is mapped according to high speed orientation signal
It arrives；
As some possible embodiments, the reverse multipath interference signal is to map to obtain according to reverse signal
's；
As some possible embodiments, the elevation angle multipath interference signal is mapped according to elevation signals.
Digital multipath interference signal simulation is according to format as defined in national military standard GJB 2275-95, by original analog circuit
The signal of generation is changed to generate corresponding data sequence by FPGA, is then converted to analog signal by DAC digital analog converter, so
Baseband signal is generated by signal conditioning circuit afterwards.Program circuit design is simple, and groundwork is FPGA programming, increases
The flexibility for having added system facilitates the addition of the other functions of system, and FPGA has stringent timing control, can make signal
Output reaches very high precision, strictly matches synchronization signal.Signal accuracy mainly with the work clock of FPGA internal logic and
The sample frequency of DAC is related to digit, and the sample frequency of current DAC can accomplish very high, and digit is usually 16, the work of FPGA
Make clock also and can achieve higher frequency, fully meets the requirement of system accuracy, and stability is very good.
Main path signal is mapped as multi-path jamming letter according to poly-diameter channel characteristic by digital multi-path signal multiplex mode
Number, in strict accordance with time-base signal, Main path signal and synchronization signal output are generated, it is real using multidiameter delay superimposition method
Now entire multipath interference signal simulation, the program meet the mentality of designing of FPGA multidiameter delay and assembly line, can shorten pass
The delay time in key path is conducive to realize under high-speed.Specific step is as follows.
(1) system parameter obtained according to parameter setting, to generate entire microwave landing simulation signal.First determine whether work
Mode be common orientation complete period signal or high speed orientation complete period signal, then generate corresponding time-base signal, using divide
The mode of Shi Fuyong generates corresponding bearing signal, high speed orientation signal, reverse signal and elevation signals, to form master
Path simulation signal.According to time-base signal and synchronous setting can with output phase should very accurate synchronization signal, and can
Guarantee that synchronization signal output holding time is very accurate.
(2) due to multipath generate principle be main path reflection the problems such as cause generate multi-path jamming, multipath
Interference signal and Main path signal have much like place, reference and logical multiplexing can be carried out when generating, according to parameter
Different multidiameter delay mappings generate corresponding multipath interference signal, and this method greatly reduces the workload for writing code.Due to
Multipath interference signal needs and synchronization association, multipath interference signal can only be added on the function signal of current sync, therefore
It needs to switch selection, after switch selection, generates multipath analog signal.
(3) the main path analog signal and multipath analog signal generated in FPGA carries out assembly line superposition and generates simulation letter
Number data sequence, which can shorten the delay time of predominating path, improve the stability of system, and it is difficult to reduce temporal constraint
Degree.After FIFO solves across clock problem, it is output in DAC digital analog converter.
(4) analog signal that DAC is generated generates baseband signal after signal conditioning circuit.Signal conditioning circuit is set
Meter is simple, it is only necessary to simply be filtered to signal and amplitude controls, it is no longer necessary to when designing the realization of original analog circuit
The complicated circuit construction being related to.
1 technical term introduction of table
Embodiment 2: the disclosure additionally provides a kind of digital multipath interference signal simulation system of microwave landing；
The digital multipath interference signal simulation system of a kind of microwave landing, comprising: sequentially connected FPGA, DAC digital-to-analogue turns
Parallel operation and signal conditioning circuit；The FPGA storage inside has computer program, when the computer program is run, in completion
State step described in method.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
- The digital multipath interference signal analogy method 1. a kind of microwave lands, characterized in that include:Step (1): setting operating mode, the operating mode, comprising: common orientation complete period signal or high speed orientation complete period Signal；Corresponding time-base signal is generated according to operating mode, current operation mode is judged by time-base signal, according to work at present The generation time of mode control signal, to generate corresponding signal；Step (2): setting output signal type；The signal type includes: without interference or with interference；Step (3): output signal: the signal of default operating mode and default output signal type is exported；Step (4): receiving the selection instruction of user's selection signal from output signal, exports main path simulation according to selection instruction Signal, or, main path analog signal and multipath analog signal；Step (5): Signal averaging: main path analog signal and multipath analog signal are overlapped, multipath interference signal is obtained；Step (6): the multipath interference signal of main path analog signal or step (5) to step (4) is turned by digital analog converter It changes analog signal into, generates baseband signal by signal conditioning circuit.
- The digital multipath interference signal analogy method 2. microwave as described in claim 1 lands, characterized in that the common side Position complete period signal, comprising: bearing signal, reverse signal or elevation signals；The high speed orientation complete period signal, comprising: High speed orientation signal, reverse signal or elevation signals.
- The digital multipath interference signal analogy method 3. microwave as described in claim 1 lands, characterized in that step (3) Specific steps are as follows:Step (31): if it is common orientation complete period signal and without interference, then bearing signal, reverse signal is exported or is faced upward Angle signal；Step (32): if it is common orientation complete period signal and with interference, then it is synchronous with bearing signal to export bearing signal Orientation multipath interference signal, the reverse signal reverse multipath interference signal synchronous with reverse signal, or, elevation signals with The synchronous elevation angle multipath interference signal of elevation signals；Step (33): if it is high speed orientation complete period signal and without interference, then high speed orientation signal, reverse signal are exported Or elevation signals；Step (34): it if it is high speed orientation complete period signal and with interference, then exports high speed orientation signal and high speed orientation is believed Number synchronous high speed multipath interference signal, the reverse signal reverse multipath interference signal synchronous with reverse signal, alternatively, Elevation signals and the elevation angle multipath interference signal synchronous with elevation signals.
- The digital multipath interference signal analogy method 4. microwave as claimed in claim 3 lands, characterized in that step (4) Specific steps are as follows:Step (41): if user's selection is output signal in step (31), by the signal of selection according to time-base signal Form main path analog signal；Step (42): if user's selection is output signal in step (32), the bearing signal of selection, reverse are believed Number or elevation signals form main path analog signal, select orientation multipath interference signal, reverse multipath interference signal or the elevation angle Coming in multipath interference signal generates multipath analog signal；Step (43): if user's selection is output signal in step (33), by the signal of selection according to time-base signal Form main path analog signal；Step (44): if user's selection is output signal in step (34), by the high speed orientation signal of selection, negative side Position signal or elevation signals form main path analog signal, select high speed orientation multipath interference signal, reverse multi-path jamming letter Number or elevation angle multipath interference signal in come and generate multipath analog signal.
- The digital multipath interference signal analogy method 5. microwave as claimed in claim 4 lands, characterized in that the step (5) specific steps are as follows:Step (51): by step (42) main path analog signal and multipath analog signal be overlapped, multipath analog signal It is added in corresponding main path analog signal, to generate multi-path jamming；Step (52): by step (44) main path analog signal and multipath analog signal be overlapped；Multipath analog signal It is added in corresponding main path analog signal, to generate multi-path jamming.
- The digital multipath interference signal analogy method 6. microwave as claimed in claim 5 lands, characterized in that the step (6) specific steps are as follows:Step (6): the signal of step (41), step (43), step (51) or step (52) is exported, digital-to-analogue conversion is passed through Device is converted into analog signal, generates baseband signal by signal conditioning circuit.
- The digital multipath interference signal analogy method 7. microwave as described in claim 1 lands, characterized in that time-base signal is pressed Requirement according to national military standard GJB 2275-95 generates.
- The digital multipath interference signal analogy method 8. microwave as claimed in claim 4 lands, characterized in that the high speed side Position multipath interference signal is mapped according to high speed orientation signal.
- The digital multipath interference signal analogy method 9. microwave as claimed in claim 4 lands, characterized in that the reverse Multipath interference signal is mapped according to reverse signal；The elevation angle multipath interference signal is mapped according to elevation signals It obtains.
- The digital multipath interference signal simulation system 10. a kind of microwave lands, characterized in that include: sequentially connected FPGA, DAC digital analog converter and signal conditioning circuit；The FPGA storage inside has computer program, and the computer program is run When, complete step described in any one of the claims 1-9 method.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3924341A (en) * | 1974-06-17 | 1975-12-09 | Itt | Doppler microwave landing system signal simulator |
| CN86103031A (en) * | 1985-04-04 | 1986-12-24 | 森德斯特兰德数据控制公司 | Improved microwave landing system (MLS) |
| KR101007350B1 (en) * | 2010-09-03 | 2011-01-13 | 광운대학교 산학협력단 | Method of detecting and cancelling multipath interference signal and apparatus thereof |
| CN102830389A (en) * | 2012-08-20 | 2012-12-19 | 广州航新航空科技股份有限公司 | PXI synthetic instrument based microwave landing simulator |
| CN103873132A (en) * | 2012-12-13 | 2014-06-18 | 许雪梅 | PXIe bus-based satellite communication system simulator |
| CN203720561U (en) * | 2013-12-17 | 2014-07-16 | 天津七六四通信导航技术有限公司 | A microwave landing ground equipment antenna simulator |
| CN104459641A (en) * | 2014-11-21 | 2015-03-25 | 上海新跃仪表厂 | Microwave environment interference signal simulating system |
| CN104515974A (en) * | 2014-12-10 | 2015-04-15 | 中国电子科技集团公司第二十研究所 | Processing method of microwave landing airborne equipment angle and ranging data |
| CN106501782A (en) * | 2016-10-14 | 2017-03-15 | 湖南鼎方电子科技有限公司 | A kind of multichannel satellite navigation and interference signal simulation source and signal imitation method |
| CN107688166A (en) * | 2017-07-27 | 2018-02-13 | 中国船舶重工集团公司第七二四研究所 | A kind of real-time production method of Arbitrary distribution WBFM noise based on FPGA |
-
2018
- 2018-11-07 CN CN201811318976.8A patent/CN109507650B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3924341A (en) * | 1974-06-17 | 1975-12-09 | Itt | Doppler microwave landing system signal simulator |
| CN86103031A (en) * | 1985-04-04 | 1986-12-24 | 森德斯特兰德数据控制公司 | Improved microwave landing system (MLS) |
| KR101007350B1 (en) * | 2010-09-03 | 2011-01-13 | 광운대학교 산학협력단 | Method of detecting and cancelling multipath interference signal and apparatus thereof |
| CN102830389A (en) * | 2012-08-20 | 2012-12-19 | 广州航新航空科技股份有限公司 | PXI synthetic instrument based microwave landing simulator |
| CN103873132A (en) * | 2012-12-13 | 2014-06-18 | 许雪梅 | PXIe bus-based satellite communication system simulator |
| CN203720561U (en) * | 2013-12-17 | 2014-07-16 | 天津七六四通信导航技术有限公司 | A microwave landing ground equipment antenna simulator |
| CN104459641A (en) * | 2014-11-21 | 2015-03-25 | 上海新跃仪表厂 | Microwave environment interference signal simulating system |
| CN104515974A (en) * | 2014-12-10 | 2015-04-15 | 中国电子科技集团公司第二十研究所 | Processing method of microwave landing airborne equipment angle and ranging data |
| CN106501782A (en) * | 2016-10-14 | 2017-03-15 | 湖南鼎方电子科技有限公司 | A kind of multichannel satellite navigation and interference signal simulation source and signal imitation method |
| CN107688166A (en) * | 2017-07-27 | 2018-02-13 | 中国船舶重工集团公司第七二四研究所 | A kind of real-time production method of Arbitrary distribution WBFM noise based on FPGA |
Non-Patent Citations (3)
| Title |
|---|
| 彭雪梅: "微波着陆系统信号模拟器的研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 苏鹏达: "微波着陆系统模拟信号的研究及FPGA实现", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 董建涛等: "基于矢量信号发生器的微波着陆信号模拟", 《现代电子技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872715A (en) * | 2021-12-06 | 2021-12-31 | 成都市以太节点科技有限公司 | Multipath signal simulation method, system, electronic equipment and storage medium |
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