CN105466453B - A kind of navigation equipment on-line monitoring system and method - Google Patents

A kind of navigation equipment on-line monitoring system and method Download PDF

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CN105466453B
CN105466453B CN201510811501.2A CN201510811501A CN105466453B CN 105466453 B CN105466453 B CN 105466453B CN 201510811501 A CN201510811501 A CN 201510811501A CN 105466453 B CN105466453 B CN 105466453B
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signal
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antenna
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CN105466453A (en
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叶家全
刘靖
杨萍
杨晓嘉
杨正波
梁飞
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Second Research Institute of CAAC
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C25/00Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass

Abstract

The present invention relates to a kind of navigation equipment on-line monitoring system and method, which includes test antenna, gps antenna, antenna control module, RF acquisition and processing module, signal analysis module and central controller module.Test antenna is used to obtain instrument-landing-system ILS/ nodirectional beacon VOR spacing waves;Gps antenna is used to receive satellite-signal;Antenna control module will test antenna and gps antenna received signal is transferred to RF acquisition and processing module;RF acquisition and processing module are filtered received signal, demodulation calculates, and obtain associated parameter data, and associated parameter data is transferred to signal analysis module;Signal analysis module analyzes the data of reception, and analysis result is transferred to central controller module.Present invention may determine that the exact position measurement point in navigation channel, the measurement accuracy and accuracy of navigation equipment on-line monitoring system are improved.

Description

A kind of navigation equipment on-line monitoring system and method
Technical field
The present invention relates to one kind to monitor system and method, and in particular to a kind of on-line monitoring system of navigation equipment and side Method.
Background technology
Civil air navigation aids are the most important infrastructure of civil aviation, closely related with flight safety.With flight stream The continuous of amount increases and domestic large airport II, the implementation of III class instrument-landing-system operation, Airport Operation to navigational facility according to Bad degree is higher and higher, this proposes navigation equipment performance and operational support the requirement of higher, in addition to regularly flight check, The operation detection under the conditions of inspection test, maintainability test, special weather to navigation equipment has become guarantee aviation flight The important means of safety.Traditional ground test means of Present navigation equipment, it is necessary to shut down tested and test index not Comprehensively, it is impossible to which the navigation equipment operating status index such as reaction ILS completely, also influences the operation on airport.As Sun Bo, Wang Yong are delivered " the navigation equipment tester based on ARM and μ C/OS- II " (instrumental technique and sensor, the 4th phase in 2011) and Publication No. A kind of navigation wireless Centralized Monitoring of the patent application publication of CN201156293Y (data of publication of application on November 26th, 2008) is set It is standby.
Civil aviation navigation equipment is to ensure the very important equipment of aviation safety, and test to it is at present at home and abroad all Paid attention to very much, International Civil Aviation Organization (ICAO), Comite Consultatif International de Radi (CCIR) and international wireless electrical interference are special The international organizations such as the other committee (CISPR), in the relevant document each worked out and issued, are proposed relevant aerial navigation The performance detection maintaining method of equipment, China Civil Aviation have formulated relevant test procedure also for civil aviation navigation equipment and will Ask.
In the past 20 years, as electronic technology, computer technology etc. develop rapidly, civil navigation aid measuring technology also obtains Very big development.ILS/VOR test equipments are as essential important dress in equipment preparation, production, test and maintenance process It is standby, play an important role in navigation equipment operational process, the great attention being increasingly subject in industry.According to navigation equipment Measurement demand, Europe and the U.S., last century the nineties begin to research ILS and VOR ground test instruments research Work, and corresponding testing tool is developed, domestic and international navigation equipment test is mainly using such as Marconi IFR4000, R&S The special equipments such as EVS300ILS/VOR analyzers, R&S ILSChecker softwares, R&S TS6300ILS test systems, frequency spectrum point The common apparatus such as analyzer, oscillograph, Network Analyzer.Special equipment is there are expensive, the shortcomings of lacking independent intellectual property right; Common apparatus is single there are function, measure by interference from human factor it is larger the shortcomings of.The current country is to navigation equipment on-line measurement Also in blank, main still grinding in the application and general-purpose test tool measuring method to general utility tool in the research of technology Study carefully.
By 2015, China's transporter number was up to more than 220, increased by more than 45 than 2010.Blank pipe is protected Barrier ability steadily improves, and ensures that sortie of taking off and landing reaches 10,400,000 sorties, increase by 70% in than 2010, average annual growth by 11% in 5 years. Domestic main large airport II, the implementation of III class instrument-landing-system operation, Airport Operation are more next to navigational facility degree of dependence Higher, this proposes navigation equipment performance and operational support the requirement of higher.The radionavigation that domestic civil airport uses System is Introduced From Abroad equipment mostly, how using new equipment come to improve Airport Operation efficiency be that face one of manager asks Topic.In the world, only Marconi, Agilent, Luo De Schwarzs etc. company of navigation equipment measurement, various countries' blank pipe unit are developed At present at the scene mainly using the ILS/VOR analyzers of its production.By the skill of the comparative maturities such as GPS positioning, high-speed mobile sampling In terms of art is applied to the test of navigation, there is no corresponding Intellectual Property Rights Issues, while the water of navigation measuring technology is also improved It is flat, promote the development of civil aviaton's aerial navigation e measurement technology.
Modern Navigation Equipment is increasingly advanced, generally using large-scale circuit, ultra-large circuit, application-specific integrated circuit Deng, and technology production circuit board of adopting new technology, such as surface encapsulation, multi-layer board technique, make the density of components on circuit board Increase considerably, and as the development of technology, this development trend will be increasingly apparent.This is dependent on associated test devices Development, so that it is guaranteed that developing safe and reliable product.External late 1980s just propose built-in test system and can Testability concept, then have developed equipment, and work up respective standard, also achieve the system based on card insert type instrument Modularization feature simultaneously reduces volume.As country and enterprise pay attention to the continuous of automatic test, and in recent ten years Technological accumulation, if it is possible to supported and developed at home, will effectively reduce China in navigation equipment testing field and state Outer gap, improves the production of China's navigation equipment, operation, the technical guarantee level safeguarded.
Modern navigation equipment Online Transaction Processing is the powerful software based on computer platform, and using bus The combination of the modular instrument equipment of technology.Foreign countries are by new bussing technique, virtual instrument technique, third-party application Software is combined, and can record and immediately as R&S EVS600 can realize the level measurement of high precision, be integrated with data logger Check measurement result, abundant triggering and synchronizing function, support the extension of soft and hardware option, there is provided data acquisition, visualization and divide The ILS Checker softwares of analysis.The domestic parameter for only supporting function single is shown, does not consider autgmentability.External test equipment The high measurement of repeatability can be carried out, is easy to verify and traces the change of navigation signal, and carries out detailed measurement analysis.
The present invention according to Civil Aviation ATM navigation equipment security maintenance ensure require, break through instrument-landing-system (ILS) and entirely To the core technology of the navigation equipment on-line testings such as beacon (VOR), it is online to develop the navigation equipment with independent intellectual property right System prototype model machine is tested, meets the navigation equipment ground test requirement that ICAO DOC8071 are determined, is existed for navigation equipment ground Line test provides technological means, improves navigation equipment safety in operation, and reduces the shadow caused by equipment is tested Aerodrome Operations Ring.
The content of the invention
The technical problems to be solved by the invention are:A kind of navigation equipment on-line monitoring system is provided and method, raising are led The measurement accuracy and accuracy for equipment on-line monitoring system of navigating.
The technical scheme is that:A kind of navigation equipment on-line monitoring system, including test antenna, gps antenna, antenna Control module, RF acquisition and processing module, signal analysis module and central controller;Test antenna is used to obtain instrument landing System ILS/ nodirectional beacon VOR spacing waves;Gps antenna is used to receive satellite-signal;Central controller is matched somebody with somebody according to monitoring scene Put, produce aerial position sequence;Central controller carries out RF acquisition and processing module parameter setting, control RF acquisition and Processing module receives the signal of designated frequency band, and carries out signal condition processing;Central controller controls signal analysis module selects Signal characteristic parameter to be analyzed;The satellite-signal that gps antenna receives is transferred to RF acquisition and processing mould through antenna control module Block, obtains the current location information of gps antenna, and the current location information is transferred to central controller, central controller root According to current location information compared with aerial position sequence, antenna elevating control amount is produced, antenna control module is according to antenna Elevating control amount driving gps antenna reaches designated position;The instrument of antenna trapping will be tested when gps antenna reaches designated position Landing system ILS/ nodirectional beacon VOR spacing waves are transferred to RF acquisition and processing module;RF acquisition and processing module pair Received signal is filtered, demodulation calculates, and obtains associated parameter data, and associated parameter data is transferred to signal analysis Module;Signal analysis module analyzes the data of reception, and analysis result is transferred to central controller and is patterned Display.
RF acquisition and processing module include course signal processing submodule, downslide signal processing submodule, give directions signal Handle submodule, nodirectional beacon signal processing submodule, satellite-signal processing submodule.
Course signal processing submodule carries out course signal filtering, demodulation, calculating processing, obtains signal strength, 90/ The amplitude and phase of 150Hz signals, modulation degree difference DDM (the Difference in Depth of of navigation channel/clearance signal Modulation) value is joined with modulation degree and SDM (Sum of the Depths of Modulation) value, Morse's identification code Number;Downslide signal processing submodule carries out the filtering of downslide signal, demodulation, calculating processing, obtains signal strength, 90/150Hz signals Amplitude and phase, the frequency shift (FS) of navigation channel/clearance signal, DDM values and SDM value parameters;Signal processing submodule is given directions to carry out Signal filtering, demodulation, calculating processing are given directions, obtains signal strength, the frequency of 400/1300/3000Hz signals and percentage modulation not This identification parameter of that;Nodirectional beacon signal processing submodule carries out the filtering of nodirectional beacon signal, demodulation, calculating processing, obtains Signal strength, the frequency of 30/9960Hz signals and percentage modulation azimuth, the amplitude modulation distortion factor of 9960Hz signals, Morse's identification Code parameter;The satellite-signal that satellite-signal processing submodule receives gps antenna is handled, and obtains the present bit of gps antenna Confidence ceases.
Signal analysis module includes navigation channel structural analysis submodule, course platform covering analyzing submodule, lower slide unit covering point Analyse submodule, lower slide unit end-fire transversary analysis submodule, marker beacon signal parameter analysis submodule, nodirectional beacon signal Parameter analysis submodule.
Structural analysis submodule in navigation channel draws navigation channel structure, analysis according to the distance of DDM values or SDM values and localizer Whether navigation channel structure meets relevant criterion;Distance of the course platform covering analyzing submodule according to signal strength and with localizer The covering of course platform is drawn, whether analysis course platform covering meets relevant criterion;Lower slide unit covering analyzing submodule is according to signal field Strong and with glide path distance draws lower slide unit covering, and whether the covering of analytical slide platform meets relevant criterion;Downslide end Penetrate transversary analysis submodule and draw lower slide unit end-fire lateral junction according to DDM values or SDM values and with the distance of glide path Structure, analytical slide end penetrate whether transversary meets relevant criterion;Marker beacon signal parameter analysis submodule is according to signal Field strength and apart from marker beacon covering is drawn, whether analysis marker beacon signal covering meets relevant criterion;Nodirectional beacon is believed Number Parameter analysis submodule is according to signal strength and apart from drawing the covering of nodirectional beacon signal, according to reference phase signal and variable The phase difference of phase signal draws azimuth view, and whether the covering of analysis nodirectional beacon signal, azimuthal error meet relevant criterion.
Test antenna uses dipole antenna.
Test antenna uses horizontal polarization mode.
A kind of navigation equipment on-line monitoring method, comprises the following steps that:
(1) scene configuration is monitored:Select monitoring object, configuration monitoring analytical parameters;
(2) central controller is according to monitoring scene configuration, produce aerial position sequence, to RF acquisition and processing module into The information and control signal analysis module of row parameter setting select the information of signal characteristic parameter to be analyzed;
(3) satellite-signal that gps antenna receives is transferred to RF acquisition and processing module through antenna control module, obtains The current location information of gps antenna, and the current location information is transferred to central controller;
(4) central controller produces antenna elevating control according to current location information compared with aerial position sequence Amount, antenna control module drive gps antenna to reach designated position according to controlled quentity controlled variable;
(5) after gps antenna reaches designated position, antenna control module will test the instrument-landing-system ILS/ of antenna trapping Nodirectional beacon VOR spacing waves are input to RF acquisition and processing module;
(6) RF acquisition and processing module are filtered received signal, demodulation calculates, and obtain relevant parameter number According to, and associated parameter data is input to signal analysis module;
(7) signal analysis module is analyzed corresponding parameter, will be divided according to the configuration of signal characteristic parameter to be analyzed Analysis result is exported to central controller;
(8) central controller completes the graphic software platform of correlated results.
The present invention compared with prior art the advantages of be:
(1) e measurement technology based on GPS positioning and vehicle-mounted mobile
It is inefficient due to by the way of artificial fixed test in conventional navigation device measuring, while navigation equipment In, course platform and lower slide unit are mainly to be navigated by the waveform symmetry of signal, measurement position be it is accurate calculate and Analyze navigation equipment transmitting signal very important parameter.In the present invention using based on high-precision GPS location technology and vehicle-mounted Mobile technology, it may be determined that the exact position measurement point in navigation channel, realizes that navigation channel continuously measures, and solves since discontinuous measurement needs Will be into row interpolation the problem of, more accurately reflect navigation equipment state by the measurement of navigation channel space of points signal characteristic.
(2) the flight path signal of same channel and clearance Signal separator
It is mainly the setting of energy overfrequency or passage using test of the conventional instrument to instrument-landing-system, tests respectively not Same frequency signal, digital filtering as a result of rear end and demodulation in the present invention, by single antenna and passage, in real time to instrument Table landing system glides or the flight path signal in course carries out Signal separator with clearance signal, avoids survey caused by multiple channel reception Measure error.
(3) the flight path structure of high-speed sampling and covering analyzing technology
It is difficult pair that the measurement of current instrument landing system localizer flight path structure and covering, which uses general test equipment, Structure and covering measure, and main method is still flown by verifying, to the letter of navigation equipment transmitting in flight course Number it is acquired and analyzes to measure, (sampled point reaches 100 times monitoring system of the invention using high-speed sampling Sample frequency above) handle and realize that flight path structure and covering dynamic are measured and analyzed, it is special that its spacing wave dynamic is more accurately described Sign, finer signal analysis method is used easy to subsequent treatment, and preventative and corrective maintenance is carried out to emission system;It is special It is not when being used for contrastive test, accurately analysis and failure predication can be carried out to the change of navigation equipment signal.
Brief description of the drawings
Fig. 1 is the composition structure chart of navigation equipment on-line monitoring system of the present invention.
Fig. 2 is the schematic diagram of navigation equipment on-line monitoring system of the present invention.
Fig. 3 is the flow chart of navigation equipment on-line monitoring method of the present invention.
Embodiment
According to the operation principle of (instrument landing system) glide path, localizer and nodirectional beacon, with reference to International Civil Aviation group Knit navigation equipment ground test requirement that ICAO DOC8071 determine and the issue of ATM Bureau of civil aviation authority《Civil Aviation ATM communication and navigation Supervision equipment inspection rebuilding management provides》, navigation on-line monitoring system mainly complete following index:
--- course platform flight path structure;
--- course platform covers;
--- course platform linearly covers;
--- lower slide unit covers;
--- lower slide unit end-fire transversary;
--- break frequency and coding;
--- the signal measurement of omnidirectional range station.
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of navigation equipment on-line monitoring system of the present invention, including test antenna, gps antenna, antenna Control module, RF acquisition and processing module, signal analysis module and central controller;Test antenna is used to obtain instrument landing System ILS/ nodirectional beacon VOR spacing waves;Gps antenna is used to receive satellite-signal;Central controller is matched somebody with somebody according to monitoring scene Put, produce aerial position sequence;Central controller carries out RF acquisition and processing module parameter setting, control RF acquisition and Processing module receives the signal of designated frequency band, and carries out signal condition processing;Central controller controls signal analysis module selects Signal characteristic parameter to be analyzed;The satellite-signal that gps antenna receives is transferred to RF acquisition and processing mould through antenna control module Block, obtains the current location information of gps antenna, and the current location information is transferred to central controller, central controller root According to current location information compared with aerial position sequence, antenna elevating control amount is produced, antenna control module is according to antenna Elevating control amount driving gps antenna reaches designated position;The instrument of antenna trapping will be tested when gps antenna reaches designated position Landing system ILS/ nodirectional beacon VOR spacing waves are transferred to RF acquisition and processing module;RF acquisition and processing module pair Received signal is filtered, demodulation calculates, and obtains associated parameter data, and associated parameter data is transferred to signal analysis Module;Signal analysis module analyzes the data of reception, and analysis result is transferred to central controller and is patterned Display.
RF acquisition and processing module include course signal processing submodule, downslide signal processing submodule, give directions signal Handle submodule, nodirectional beacon signal processing submodule, satellite-signal processing submodule.
Course signal processing submodule carries out course signal filtering, demodulation, calculating processing, obtains signal strength, 90/ The amplitude and phase of 150Hz signals, modulation degree difference DDM (the Difference in Depth of of navigation channel/clearance signal Modulation) value is joined with modulation degree and SDM (Sum of the Depths of Modulation) value, Morse's identification code Number;Downslide signal processing submodule carries out the filtering of downslide signal, demodulation, calculating processing, obtains signal strength, 90/150Hz signals Amplitude and phase, the frequency shift (FS) of navigation channel/clearance signal, DDM values and SDM value parameters;Signal processing submodule is given directions to carry out Signal filtering, demodulation, calculating processing are given directions, obtains signal strength, the frequency of 400/1300/3000Hz signals and percentage modulation not This identification parameter of that;Nodirectional beacon signal processing submodule carries out the filtering of nodirectional beacon signal, demodulation, calculating processing, obtains Signal strength, the frequency of 30/9960Hz signals and percentage modulation azimuth, the amplitude modulation distortion factor of 9960Hz signals, Morse's identification Code parameter;The satellite-signal that satellite-signal processing submodule receives gps antenna is handled, and obtains the present bit of gps antenna Confidence ceases.
Signal analysis module includes navigation channel structural analysis submodule, course platform covering analyzing submodule, lower slide unit covering point Analyse submodule, lower slide unit end-fire transversary analysis submodule, marker beacon signal parameter analysis submodule, nodirectional beacon signal Parameter analysis submodule.
Structural analysis submodule in navigation channel draws navigation channel structure, analysis according to the distance of DDM values or SDM values and localizer Whether navigation channel structure meets relevant criterion;Distance of the course platform covering analyzing submodule according to signal strength and with localizer The covering of course platform is drawn, whether analysis course platform covering meets relevant criterion;Lower slide unit covering analyzing submodule is according to signal field Strong and with glide path distance draws lower slide unit covering, and whether the covering of analytical slide platform meets relevant criterion;Downslide end Penetrate transversary analysis submodule and draw lower slide unit end-fire lateral junction according to DDM values or SDM values and with the distance of glide path Structure, analytical slide end penetrate whether transversary meets relevant criterion;Marker beacon signal parameter analysis submodule is according to signal Field strength and apart from marker beacon covering is drawn, whether analysis marker beacon signal covering meets relevant criterion;Nodirectional beacon is believed Number Parameter analysis submodule is according to signal strength and apart from drawing the covering of nodirectional beacon signal, according to reference phase signal and variable The phase difference of phase signal draws azimuth view, and whether the covering of analysis nodirectional beacon signal, azimuthal error meet relevant criterion.Phase Pass standard is for example:GB6364-2013、MH/T4006.1-1998、MH/T4006.2-1998、MH2003-2000.
Test antenna uses dipole antenna.
Test antenna uses horizontal polarization mode.
At present, in navigation equipment on-line measurement, usually used manually point-by-point selection measurement point, or it is fixed using vehicle edge Circuit is run, with reference to the mode of manual control measurement antenna.Since ILS systems use spacing wave synthesis mode, distance and height Degree has very strong correlation, and the signal characteristic that this mode is difficult to realize navigation channel structure accurately measures.With GPS measure theories With the continuous development of equipment so that GPS e measurement technologies reach its maturity, and brand-new technological means and side are provided for engineering survey Method.GPS positioning has developed to dynamic, high speed, high efficiency and disposably determines three-dimensional coordinate.GPS positioning technology is engineering survey Brand-new technological means and method are provided, is applied it in the automatic fast positioning of test point, helps to continuously determine test Three-dimensional position, while command range and height, the accurate spatial signal properties for obtaining continuity point on navigation channel;Awarded at the same time using it Shi Tezheng, can mark each measurement data.
Due to horizontal level of the test point away from guidance station and height close association, and the continuity of measurement point influences navigation channel Accuracy of the spacing wave along distance change feature, as shown in Fig. 2, the present invention uses vehicle-mounted mobile platform and GPS, can ensure Monitoring system accurately captures the spacing wave on navigation channel, obtains tested navigation channel spacing wave and accurately describes, so as to be analysis navigation Equipment state provides basis.The function of RF acquisition and processing module is realized using FPGA, is opened on computers using LabVIEW Send out software corresponding and realize the function of being analyzed signal.Since ILS carrier operation frequency ranges are related to 108-112MHz, 320- 340MHz, 75MHz, signal frequency are related to 90/150Hz, 400/1300/3000Hz;VOR carrier operation frequency ranges are related to 108- 118MHz, signal frequency are related to 30Hz;Different frequencies pair has been respectively divided in each frequency range again, therefore monitoring system of the present invention is adopted With high-speed sampling technology, measurement frequency is not less than 100Hz, can the more data of one-shot measurement, with collection high-speed pass Transmission of data, it is comprehensive to realize that beacon course navigation channel structure, localizer covering, localizer linearly cover using technologies such as data processings Lid, the covering of downslide navigation channel, downslide navigation channel end transversary, the behavioral characteristics descriptive analysis of radial clearance.
The present invention, using data drive control strategy, current state is stored by establishing based on various measurement data Database, Knowledge Set, knowledge base and inference machine, from existing information, searching can use knowledge, be selected by conflict resolution Knowledge is enabled, execution enables knowledge, changes solving state, progressively solves until Resolving probiems, improvement are based on Symbolic fault diagnosis Theoretical candidate's solution space is big, computational complexity, the shortcomings of dynamic cannot be handled, is uncertain.
As shown in figure 3, a kind of navigation equipment on-line monitoring method, comprises the following steps that:
(1) scene configuration is monitored:Select monitoring object, configuration monitoring analytical parameters;
(2) central controller is according to monitoring scene configuration, produce aerial position sequence, to RF acquisition and processing module into The information and control signal analysis module of row parameter setting select the information of signal characteristic parameter to be analyzed;
(3) satellite-signal that gps antenna receives is transferred to RF acquisition and processing module through antenna control module, obtains The current location information of gps antenna, and the current location information is transferred to central controller;
(4) central controller produces antenna elevating control according to current location information compared with aerial position sequence Amount, antenna control module drive gps antenna to reach designated position according to controlled quentity controlled variable;
(5) after gps antenna reaches designated position, antenna control module will test the instrument-landing-system ILS/ of antenna trapping Nodirectional beacon VOR spacing waves are input to RF acquisition and processing module;
(6) RF acquisition and processing module are filtered received signal, demodulation calculates, and obtain relevant parameter number According to, and associated parameter data is input to signal analysis module;
(7) signal analysis module is analyzed corresponding parameter, will be divided according to the configuration of signal characteristic parameter to be analyzed Analysis result is exported to central controller;
(8) central controller completes the graphic software platform of correlated results.
Navigation equipment on-line monitoring system is navigation equipment performance monitoring, the key equipment of Support, it is advantageously ensured that Navigation equipment service continuity, to ensureing that flight safety has particularly important society, economic implications.
Achievement in research of the present invention can break foreign technology barrier, change the navigation of China's Civil Aviation ATM to the undue of foreign technology Rely on, test equipment, instrument rely on the situation of imported product for a long time.Achievement of the present invention has whole independent intellectual property rights, can be Navigation equipment production domesticization provides measuring technology support.10,000,000 yuan of direct economic benefit can be produced by expecting the year two thousand twenty.In addition, Surrounding countries are also growing to the demand of navigation equipment on-line testing in recent years, and navigation equipment on-line monitoring system can export wound Converge;The use of navigation equipment on-line monitoring system, by improving the device service duration, reduces flight flow control, significantly Flight delay rate is reduced, direct economic effect indirect economic effect is up to billions of members.
The use of navigation equipment on-line monitoring system, will also promote the development of related industry;Researched and developed by autonomous innovation, will The multi-field technological progress such as China's electronic information, aeronautical manufacture is greatly facilitated, improves the technology developing ability of China's blank pipe industry, Promote national science and technology is horizontal to improve, strengthen international competitiveness.

Claims (8)

  1. A kind of 1. navigation equipment on-line monitoring system, it is characterised in that the system uses vehicle-mounted mobile platform and GPS, including Test antenna, gps antenna, antenna control module, RF acquisition and processing module, signal analysis module and central controller;Survey Examination antenna is used to obtain instrument-landing-system ILS/ nodirectional beacon VOR spacing waves;Gps antenna is used to receive satellite-signal;In Controller is entreated to produce aerial position sequence according to monitoring scene configuration;Central controller carries out RF acquisition and processing module Parameter setting, controls RF acquisition and processing module to receive the signal of designated frequency band, and carries out signal condition processing;Center control Device control signal analysis module selects signal characteristic parameter to be analyzed;The satellite-signal that gps antenna receives is through antenna control module RF acquisition and processing module are transferred to, obtain the current location information of gps antenna, and the current location information is transferred to Controller is entreated, central controller compared with aerial position sequence, produces antenna elevating control amount according to current location information, Antenna control module drives gps antenna to reach designated position according to antenna elevating control amount;When gps antenna reaches designated position The instrument-landing-system ILS/ nodirectional beacon VOR spacing waves for testing antenna trapping are transferred to RF acquisition and processing module; RF acquisition and processing module are filtered received signal, demodulation calculates, and obtain associated parameter data, and correlation is joined Number data are transferred to signal analysis module;Signal analysis module analyzes the data of reception, and analysis result is transferred to Central controller is patterned display;Wherein,
    RF acquisition and processing module include course signal processing submodule, downslide signal processing submodule, give directions signal processing Submodule, nodirectional beacon signal processing submodule, satellite-signal processing submodule;
    Course signal processing submodule carries out course signal filtering, demodulation, calculating processing, obtains signal strength, 90/150Hz letters Number amplitude and phase, the modulation degree difference DDM values of navigation channel/clearance signal and modulation degree and SDM values, Morse's identification parameter; Downslide signal processing submodule carries out downslide signal filtering, demodulation, calculating processing, obtains signal strength, 90/150Hz signals Amplitude and phase, the frequency shift (FS) of navigation channel/clearance signal, DDM values and SDM value parameters;Signal processing submodule is given directions to be referred to The filtering of point signal, demodulation, calculating processing, obtain signal strength, the frequency of 400/1300/3000Hz signals and percentage modulation More This identification parameter;Nodirectional beacon signal processing submodule carries out the filtering of nodirectional beacon signal, demodulation, calculating processing, obtains letter Number intensity, the frequency of 30/9960Hz signals and percentage modulation azimuth, the amplitude modulation distortion factor of 9960Hz signals, Morse's identification code Parameter;The satellite-signal that satellite-signal processing submodule receives gps antenna is handled, and obtains the current location of gps antenna Information.
  2. 2. navigation equipment on-line monitoring system according to claim 1, it is characterised in that signal analysis module includes navigation channel Structural analysis submodule, course platform covering analyzing submodule, lower slide unit covering analyzing submodule, lower slide unit end-fire transversary point Analyse submodule, marker beacon signal parameter analysis submodule, nodirectional beacon signal parameter analysis submodule.
  3. 3. navigation equipment on-line monitoring system according to claim 2, it is characterised in that navigation channel structural analysis submodule root tuber Navigation channel structure is drawn according to the distance of modulation degree difference DDM values or modulation degree and SDM values and localizer, whether is analysis navigation channel structure Meet relevant criterion;Course platform covering analyzing submodule is covered according to signal strength and with the distance drafting course platform of localizer Whether lid, analysis course platform covering meet relevant criterion;Lower slide unit covering analyzing submodule is believed according to signal strength and with gliding The distance for marking platform draws lower slide unit covering, and whether the covering of analytical slide platform meets relevant criterion;Lower slide unit end-fire transversary point Analyse submodule and draw lower slide unit end-fire transversary, analytical slide platform according to DDM values or SDM values and with the distance of glide path Whether end-fire transversary meets relevant criterion;Marker beacon signal parameter analysis submodule is according to signal strength and apart from drafting Marker beacon covers, and whether the signal covering of analysis marker beacon meets relevant criterion;Nodirectional beacon signal parameter analysis submodule Root tuber is according to signal strength and apart from the covering of nodirectional beacon signal is drawn, according to reference phase signal and the phase of variable-phase signal Difference draws azimuth view, and whether the covering of analysis nodirectional beacon signal, azimuthal error meet relevant criterion.
  4. 4. navigation equipment on-line monitoring system according to claim 1, it is characterised in that test antenna uses dipole day Line.
  5. 5. navigation equipment on-line monitoring system according to claim 1, it is characterised in that test antenna uses horizontal polarization Mode.
  6. 6. a kind of navigation equipment on-line monitoring method, it is characterised in that comprise the following steps that:
    (1) scene configuration is monitored:Select monitoring object, configuration monitoring analytical parameters;
    (2) central controller produces aerial position sequence, RF acquisition and processing module is joined according to monitoring scene configuration Information and control signal analysis module that number is set select the information of signal characteristic parameter to be analyzed;
    (3) satellite-signal that gps antenna receives is transferred to RF acquisition and processing module through antenna control module, obtains GPS days The current location information of line, and the current location information is transferred to central controller;
    (4) central controller produces antenna elevating control amount, day according to current location information compared with aerial position sequence Line traffic control module drives gps antenna to reach designated position according to controlled quentity controlled variable;
    (5) after gps antenna reaches designated position, antenna control module will test the instrument-landing-system ILS/ omnidirectionals of antenna trapping Beacon VOR spacing waves are input to RF acquisition and processing module;
    (6) RF acquisition and processing module are filtered received signal, demodulation calculates, and obtain associated parameter data, and Associated parameter data is input to signal analysis module;
    (7) signal analysis module analyzes corresponding parameter, analysis is tied according to the configuration of signal characteristic parameter to be analyzed Fruit is exported to central controller;
    (8) central controller completes the graphic software platform of correlated results;
    Wherein, RF acquisition and processing module include course signal processing submodule, downslide signal processing submodule, give directions signal Handle submodule, nodirectional beacon signal processing submodule, satellite-signal processing submodule;
    Course signal processing submodule carries out course signal filtering, demodulation, calculating processing, obtains signal strength, 90/150Hz letters Number amplitude and phase, the modulation degree difference DDM values of navigation channel/clearance signal and modulation degree and SDM values, Morse's identification parameter; Downslide signal processing submodule carries out downslide signal filtering, demodulation, calculating processing, obtains signal strength, 90/150Hz signals Amplitude and phase, the frequency shift (FS) of navigation channel/clearance signal, DDM values and SDM value parameters;Signal processing submodule is given directions to be referred to The filtering of point signal, demodulation, calculating processing, obtain signal strength, the frequency of 400/1300/3000Hz signals and percentage modulation More This identification parameter;Nodirectional beacon signal processing submodule carries out the filtering of nodirectional beacon signal, demodulation, calculating processing, obtains letter Number intensity, the frequency of 30/9960Hz signals and percentage modulation azimuth, the amplitude modulation distortion factor of 9960Hz signals, Morse's identification code Parameter;The satellite-signal that satellite-signal processing submodule receives gps antenna is handled, and obtains the current location of gps antenna Information.
  7. 7. navigation equipment on-line monitoring method according to claim 6, it is characterised in that test antenna uses dipole day Line.
  8. 8. navigation equipment on-line monitoring method according to claim 6, it is characterised in that test antenna uses horizontal polarization Mode.
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