CN106330223A - Radio monitoring and direction finding system with good electromagnetic compatibility - Google Patents
Radio monitoring and direction finding system with good electromagnetic compatibility Download PDFInfo
- Publication number
- CN106330223A CN106330223A CN201610766511.3A CN201610766511A CN106330223A CN 106330223 A CN106330223 A CN 106330223A CN 201610766511 A CN201610766511 A CN 201610766511A CN 106330223 A CN106330223 A CN 106330223A
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- Prior art keywords
- monitoring
- finding
- antenna
- radio
- electromagnetic compatibility
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1607—Supply circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/04—Metal casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a radio monitoring and direction finding system with good electromagnetic compatibility. The system comprises a monitoring and direction finding receiver mounted on an aircraft, a monitoring and direction finding antenna arranged on the monitoring and direction finding receiver, and a control terminal; an output end of the monitoring and direction finding antenna is in communication connection with an input end of the monitoring and direction finding receiver; and the output end of the monitoring and direction finding receiver is in communication connection with the control terminal; the monitoring and direction finding receiver comprises a chassis, a radio frequency receiving module, an intermediate frequency processing module and a communication module are arranged in the chassis, the input end of the radio frequency receiving module is in communication connection with the output end of the monitoring and direction finding antenna through a shielding radio frequency cable, the output end of the radio frequency receiving module is in communication connection with the input end of the intermediate frequency processing module, the output end of the intermediate frequency processing module is in communication connection with the input end of the communication module, and the communication module is also in communication connection with the control terminal. The radio monitoring and direction finding system has good electromagnetic compatibility.
Description
Technical field
The present invention relates to radio monitoring technical field, particularly relate to the good radio monitoring of a kind of electromagnetic compatibility and survey
To system.
Background technology
Monitoring and direction finding system is the important prison performing the task such as spectrum management, interference signal investigation of radio control department
Survey instrument.The most common apparatus-form includes fixed, vehicular and hand-held, and fixed apparatus is generally built bigger
On steel tower, monitoring range is limited, and apparatus expensive maintenance cost is higher；Although vehicular equipment expands moving range, but
The complicated urban environment of many buildings can reduce the false-alarm thresholding of monitoring and direction-finding, and at the complicated landform such as mountain forest, motor vehicles
It is difficult to pass through, there is monitoring blind area；The usual performance of portable equipment is relatively low, and single monitoring and direction-finding time length, precision are low, and monitoring is prominent
Signal more difficult.And, containing multiple electric elements in existing radio monitoring and direction-finding equipment, different electric elements it
Between there is the problem of electromagnetic compatibility, if the electromagnetic compatibility problem that not can solve between electric elements, can be to radio
The monitoring accuracy of monitoring and direction-finding equipment affects greatly.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that the radio monitoring that a kind of electromagnetic compatibility is good is surveyed
To system, there is good Electro Magnetic Compatibility.
It is an object of the invention to be achieved through the following technical solutions: the radio monitoring and direction-finding system that electromagnetic compatibility is good
System, including carry in carry-on monitoring and direction-finding receiver, the monitoring and direction-finding antenna that is arranged on monitoring and direction-finding receiver and
Control terminal；The outfan of monitoring and direction-finding antenna communicates to connect with the input of monitoring and direction-finding receiver, monitoring and direction-finding receiver
Outfan with control terminal communication be connected.
Described monitoring and direction-finding receiver is provided with Receiver Module, IF process module and communicates in including cabinet, cabinet
Module, the input of Receiver Module is communicated to connect by shield type radio-frequency cable with the outfan of monitoring and direction-finding antenna, penetrates
Frequently the outfan of receiver module communicates to connect with the input of IF process module, the outfan of IF process module and the mould that communicates
The input communication connection of block, communication module is also connected with control terminal communication.
Described cabinet is the all-sealed cabinet of aluminium alloy.
Described cabinet is made up of multiple panels, is provided with screen rubber bar between adjacent panels.
Described cabinet is provided with multiple communication interface, is provided with feedthrough capacitor in communication interface.
One panel of described cabinet is provided with louvre, and louvre is provided with shielding wire netting.
Described cabinet is provided with and is provided with DC wave filter in DC supply input mouth, DC supply input mouth.
Described monitoring and direction-finding antenna is quaternary orthogonal matrix antenna.
Described monitoring and direction-finding antenna include 30MHz-200MHz direction estimation antenna array, 200MHz-1000MHz direction estimation antenna array,
1000MHz-3000MHz direction estimation antenna array and 3GHz-8GHz monitoring and direction-finding antenna.
Described 30MHz-200MHz direction estimation antenna array is made up of the monopole antenna of four band metallic reflection dishes, described
200MHz-1000MHz direction estimation antenna array and 1000MHz-3000MHz direction estimation antenna array are by the list of four shared metallic reflection dishes
Pole sub antenna composition.
Described radio monitoring direction-finding system also includes electronic compass and GPS device, electronic compass and connecing with monitoring and direction-finding
Receipts machine communicates to connect, and GPS device is connected with controlling terminal communication.
The invention has the beneficial effects as follows:
(1), in the application, the cabinet of monitoring and direction-finding receiver uses the design of aluminium alloy totally enclosed type, arranges screen between cabinet panel
Cover rubber strip, louvre increases shielding wire netting, and all radio-frequency cables, control cable all use shielded cable, it is possible to outside preventing
Portion's signal is by inside the incoming monitoring device of cabinet；
(2) monitoring and direction-finding receiver uses direct current supply mode, and the DC supply input mouth of monitoring and direction-finding receiver increases direct current
Power-supply filter, it is possible to prevent power supply crosstalk；
(3) monitoring and direction-finding receiver to outer control interface, data-interface increase feedthrough capacitor carry out secondary filtering, it is possible to prevent
After internal signal is revealed, monitored direction-finder antenna receives；
(4) monitoring and direction-finding receiver carry is on aircraft, compared to traditional fixed, vehicular and hand-held monitoring and direction-finding
Equipment, can grasp airborne electromagnetic ambient conditions more accurately, and that improves complicated geographical environment and complex electromagnetic environment is wireless
Pyroelectric monitor ability；It is additionally, since in high-altitude, surface relief can be effectively prevented from and signal is blocked decay by high-lager building
Impact, significantly reduces refraction, the diffraction etc. that complex landform environment causes and changes the impact of propagation path, can be effectively improved
The accuracy of DF and location result, and to ultrashort wave, microwave signal effective monitoring scope by the rising with liter hollow panel
Increase.
Accompanying drawing explanation
Fig. 1 is the schematic block diagram of an embodiment of radio monitoring direction-finding system in the present invention；
Fig. 2 is the schematic diagram of interferometer direction finding antenna array in the present invention；
Fig. 3 is the schematic diagram only installing antenna mounting frame in the present invention under ventral；
Fig. 4 is the scheme of installation of 30MHz～200MHz direction estimation antenna array in the present invention；
Fig. 5 is that in the present invention, the installation of 200MHz-1000MHz direction estimation antenna array and 1000MHz-3000MHz direction estimation antenna array is shown
It is intended to；
In figure, 1-the first dipole antenna, 2-the second dipole antenna, 3-the 3rd dipole antenna, 4-antenna mounting frame, 5-
One metallic reflection dish, 6-monopole antenna, 7-the second metallic reflection dish.
Detailed description of the invention
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
The following stated.
As it is shown in figure 1, the radio monitoring direction-finding system that electromagnetic compatibility is good, survey in carry-on monitoring including carry
To receiver, the monitoring and direction-finding antenna that is arranged on monitoring and direction-finding receiver with control terminal；The outfan of monitoring and direction-finding antenna
Communicating to connect with the input of monitoring and direction-finding receiver, the outfan of monitoring and direction-finding receiver is connected with controlling terminal communication.
Described monitoring and direction-finding receiver is provided with Receiver Module, IF process module and communicates in including cabinet, cabinet
Module, the input of Receiver Module is communicated to connect by shield type radio-frequency cable with the outfan of monitoring and direction-finding antenna, penetrates
Frequently the outfan of receiver module communicates to connect with the input of IF process module, the outfan of IF process module and the mould that communicates
The input communication connection of block, communication module is also connected with control terminal communication.
Described cabinet is the all-sealed cabinet of aluminium alloy, its a size of 232mm × 148mm × 315mm；Due to monitoring and direction-finding
Receiver is arranged in the luggage compartment of aircraft, and the Assurance of Size monitoring and direction-finding receiver of cabinet can enter luggage compartment.At this
In embodiment, aircraft uses the U.S. to produce the western small-sized fixed wing airplane of sharp SR-20, and its luggage compartment door size is about 25cm × 35cm；
This machine ventral is flatter, is suitable for direction-finder antenna and installs, and less on Measure direction performance impact；When installing monitoring and direction-finding antenna, can
The pedal utilizing this aircraft carries out installed part transformation, and installation and the wiring of whole monitoring and direction-finding antenna do not destroy body, aircraft
Repacking workload is little；This drive end unit has laying of an energy load-bearing 80kg luggage compartment, applicable monitoring and direction-finding main frame and power supply.
Described cabinet is made up of multiple panels, is provided with screen rubber bar between adjacent panels；On one panel of described cabinet
Being provided with louvre, louvre is provided with shielding wire netting；It is prevented from external signal by cabinet incoming monitoring and direction-finding receiver
Internal.
Described cabinet is provided with multiple communication interface (to outer control interface, data-interface etc.), is provided with and wears in communication interface
Electrocardio holds.Carry out secondary filtering, it is possible to after preventing internal signal from revealing, monitored direction-finder antenna receives.
Described cabinet is provided with and is provided with DC wave filter in DC supply input mouth, DC supply input mouth,
It is prevented from power supply crosstalk.
Further, the cabinet of monitoring and direction-finding receiver and monitoring and direction-finding antenna use and design altogether, with carry-on
Electrical equipment use multipoint-parallel earthing mode, and monitoring and direction-finding receiver and ground connection and other equipment grounds between arrange
Electromagnetic screen, thus the electromagnetic radiation reducing aircraft and carry-on electrical equipment is passed to monitoring by ground wire
In direction-finding receiver.
Described radio monitoring direction-finding system also includes independent current source, independent current source by lithium battery group, lithium battery charger,
Protection board, electric power detection module, connector and housing composition；Wherein, lithium battery group, protection board and electric power detection module are arranged on
In housing.Lithium cell charging pond is that the lithium battery group in independent current source is charged for connecting civil power；Protection board is used for protecting
Lithium battery group, overvoltage when preventing its rechargable battery；Electric power detection module is for the dump energy of detection lithium battery group in real time, when lithium electricity
Report to the police when the dump energy of pond group is less than threshold value；Plug connector is used for realizing independent current source and sets with monitoring and direction-finding receiver, GP
Standby electrical connection between S and electronic compass, thus realizing independent current source is monitoring and direction-finding receiver, GPS device and electronic compass
Power supply.In the present embodiment, independent current source is that monitoring and direction-finding receiver, GPS device, electronic compass are powered and control terminal (ratio
Such as notebook computer) it is powered, and do not use the built-in power of equipment.
The shell dimension of independent current source is 320mm × 200mm × 315mm.The built-in lithium battery group of independent current source is
DC24V40AH, general power is about 960W, calculates by actual discharge efficiency 90%, is available for monitoring and direction-finding receiver and notebook computer
Work about=(960 × 0.9)/170=5 hour, can meet single monitoring task power reguirements.
Described monitoring and direction-finding antenna is quaternary orthogonal matrix antenna, use interferometer direction finding system, it is possible to effectively alleviate weight,
Reduce volume.The most so design be because interferometer direction finding mode can the impact on direction finding by device fabrication error and carrier
Ground test takes in and deposits in antenna array response space, thus be substantially reduced device hardware manufacture difficulty, and to greatest extent
Eliminate the carrier impact on direction finding, finally make equipment obtain the highest direction finding accuracy.
Interferometer direction finding system: antenna array is made up of two orthogonal linear arrays, most basic interferometer direction finding antenna array by
Three dipole antenna compositions, as in figure 2 it is shown, the first dipole antenna the 1, second dipole antenna 2 and the 3rd dipole antenna 3
Composition isosceles right triangle, L12 is perpendicular to L13.When arrival bearing is θ, it is different that signal arrives three antenna times, therefore
Phase contrast is had between radio signal received by three antennas.First dipole antenna 1 and the second dipole antenna 2 with
Between first dipole antenna 1 and the 3rd dipole antenna 3, the phase contrast of signal is Φ 12 and Φ 13 respectively.By measure this two
Individual phase contrast can calculate the incoming wave angle of measured signal.Interferometer direction finding system has that direction finding precision is high, direction finding speed fast,
The advantages such as direction-finder antenna volume is little, lightweight, windage is little, orientation is simple.
Described monitoring and direction-finding antenna is arranged on by antenna mounting frame under the ventral of aircraft, monitoring and direction-finding antenna and antenna
Installing rack support uses detachable connected mode, such as: monitoring and direction-finding antenna snaps onto on antenna mounting frame, monitoring and direction-finding antenna
It is first-class that the mode being threaded connection is arranged on antenna mounting frame；When not performing task, can be by the monitoring and direction-finding sky under ventral
Line takes off, and only reservation antenna mounting frame is under ventral, as shown in Figure 3.
Described monitoring and direction-finding antenna include 30MHz-200MHz direction estimation antenna array, 200MHz-1000MHz direction estimation antenna array,
1000MHz-3000MHz direction estimation antenna array and 3GHz-8GHz monitoring and direction-finding antenna.
Described 30MHz-200MHz direction estimation antenna array is made up of four monopole antennas 6 with the first metallic reflection dish, the
One metallic reflection dish 5 i.e. improves antenna gain, reduces antenna and antenna array size, can also effectively reduce ventral gold simultaneously
Belong to the fuselage impact on direction estimation antenna array, as shown in Figure 4.
Described 200MHz-1000MHz direction estimation antenna array and 1000MHz-3000MHz direction estimation antenna array are by four bands second
The monopole antenna composition of metallic reflection dish 7, owing to antenna array size is less, therefore 4 antenna elements share second metal
Reflecting disc 7, this second metallic reflection dish 7 also mounting seat as antenna house uses, as shown in Figure 5 simultaneously.
Described radio monitoring direction-finding system also includes electronic compass and GPS device, electronic compass and connecing with monitoring and direction-finding
Receipts machine communicates to connect, and GPS device is connected with controlling terminal communication.
The model of electronic compass is that KVH-C100 has the features such as volume is little, price is low, stable and reliable for performance, aims at industry
With military use and design, use Fluxgate Technique, within course precision can reach 0.5 °, by its digital interface, can
Magnetic field of the earth X, the horizontal component of Y-axis are provided.
The model of GPS device is GR 213, and the GR-213 scope of application is from auto navigation, safety system, cartography, various
Agricultural use etc. is arrived in investigation；The primary demand used only " suitable power supply supply and in the face of sky "；By RS-232 or TTL
Compatibility interface, links up with other electronic equipment, and with rechargeable built-in battery, stores satellite data such as satellite signals state, last time
Rearmost position, date and the time used；Its power consumption is low, and can follow the trail of the signal of 12 position location satellites simultaneously, within every 0.1 second, connects
Receive once, be updated once every second location information；Electricity saver (Trickle-Power) makes location work only hold in the part time
OK；And the receive capabilities being typically located at closed mode also Open Timer can position (Push to Fix) function, provide rapidly user
Location information.Selling point: use the high-effect chip of the SiRF third generation, greatly reduce volume；Quickly location and tracking 20
The ability of satellite；Chip built-in 200,000 satellite chases after arithmetical unit, and search and computing satellite signals ability are greatly improved；
Built-in WASS/EGNOS demodulator, improves positioning accurate accuracy low power consumption；Built-in repeatable charged lithium cells, lowers and positions first
Time (TTFF).Support the output of NMEA 0,183 2.2 version specification；Improvement type computational theory, improves the signal under poor environment
Receiving ability and positional accuracy.
Described monitoring and direction-finding receiver is provided with electromagnetic compatibility module, sets for electromotor and the airborne electronic equipment at aircraft
Set up starting-up signal template during standby start work, set up off signal when electromotor and the air environment shutdown of aircraft
Template, calculates starting-up signal template and the difference template of off signal template, it is thus achieved that electromotor and the airborne electronic equipment of aircraft set
The machine radio signal radiation template during standby start, processes radio monitoring according to this machine radio signal radiation template and surveys
Monitoring Data when system works, thus can reach the purpose eliminating the machine electromagnetic radiation.
The above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, is not to be taken as the eliminating to other embodiments, and can be used for other combinations various, amendment and environment, and can be at this
In the described contemplated scope of literary composition, it is modified by above-mentioned teaching or the technology of association area or knowledge.And those skilled in the art are entered
The change of row and change, the most all should be at the protection domains of claims of the present invention without departing from the spirit and scope of the present invention
In.
Claims (10)
1. the radio monitoring direction-finding system that electromagnetic compatibility is good, it is characterised in that include that carry is surveyed in carry-on monitoring
To receiver, the monitoring and direction-finding antenna that is arranged on monitoring and direction-finding receiver with control terminal；The outfan of monitoring and direction-finding antenna
Communicating to connect with the input of monitoring and direction-finding receiver, the outfan of monitoring and direction-finding receiver is connected with controlling terminal communication；
Described monitoring and direction-finding receiver is provided with Receiver Module, IF process module and communication module in including cabinet, cabinet,
The input of Receiver Module is communicated to connect by shield type radio-frequency cable with the outfan of monitoring and direction-finding antenna, radio frequency reception
The outfan of module communicates to connect with the input of IF process module, and the outfan of IF process module is defeated with communication module
Entering end communication connection, communication module is also connected with control terminal communication.
The radio monitoring direction-finding system that electromagnetic compatibility the most according to claim 1 is good, it is characterised in that described cabinet
For the all-sealed cabinet of aluminium alloy.
The radio monitoring direction-finding system that electromagnetic compatibility the most according to claim 1 is good, it is characterised in that described cabinet
It is made up of multiple panels, between adjacent panels, is provided with screen rubber bar.
The radio monitoring direction-finding system that electromagnetic compatibility the most according to claim 1 is good, it is characterised in that described cabinet
It is provided with multiple communication interface, communication interface is provided with feedthrough capacitor.
The radio monitoring direction-finding system that electromagnetic compatibility the most according to claim 1 is good, it is characterised in that described cabinet
A panel be provided with louvre, louvre is provided with shielding wire netting.
The radio monitoring direction-finding system that electromagnetic compatibility the most according to claim 1 is good, it is characterised in that described cabinet
It is provided with and is provided with DC wave filter in DC supply input mouth, DC supply input mouth.
The radio monitoring direction-finding system that electromagnetic compatibility the most according to claim 1 is good, it is characterised in that described monitoring
Direction-finder antenna is quaternary orthogonal matrix antenna.
The radio monitoring direction-finding system that electromagnetic compatibility the most according to claim 1 is good, it is characterised in that described monitoring
Direction-finder antenna includes that 30MHz-200MHz direction estimation antenna array, 200MHz-1000MHz direction estimation antenna array, 1000MHz-3000MHz survey
To antenna array and 3GHz-8GHz monitoring and direction-finding antenna.
The radio monitoring direction-finding system that electromagnetic compatibility the most according to claim 8 is good, it is characterised in that described
30MHz-200MHz direction estimation antenna array is made up of the monopole antenna of four band metallic reflection dishes, and described 200MHz-1000MHz surveys
Form by the monopole antenna of four shared metallic reflection dishes to antenna array and 1000MHz-3000MHz direction estimation antenna array.
The radio monitoring direction-finding system that electromagnetic compatibility the most according to claim 1 is good, it is characterised in that described nothing
Line pyroelectric monitor direction-finding system also includes electronic compass and GPS device, electronic compass and communicating to connect with monitoring and direction-finding receiver,
GPS device is connected with controlling terminal communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610766511.3A CN106330223A (en) | 2016-08-31 | 2016-08-31 | Radio monitoring and direction finding system with good electromagnetic compatibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610766511.3A CN106330223A (en) | 2016-08-31 | 2016-08-31 | Radio monitoring and direction finding system with good electromagnetic compatibility |
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| Publication Number | Publication Date |
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| CN106330223A true CN106330223A (en) | 2017-01-11 |
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ID=57789117
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610766511.3A Pending CN106330223A (en) | 2016-08-31 | 2016-08-31 | Radio monitoring and direction finding system with good electromagnetic compatibility |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596911A (en) * | 2018-11-19 | 2019-04-09 | 中国科学院新疆天文台 | A kind of radio observatory location Electro Magnetic Compatibility control method |
| CN113109757A (en) * | 2021-04-21 | 2021-07-13 | 广东圣大电子有限公司 | Direction finding microwave channel assembly based on interferometer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596911A (en) * | 2018-11-19 | 2019-04-09 | 中国科学院新疆天文台 | A kind of radio observatory location Electro Magnetic Compatibility control method |
| CN109596911B (en) * | 2018-11-19 | 2021-05-18 | 中国科学院新疆天文台 | Control method for electromagnetic compatibility of radio astronomical site |
| CN113109757A (en) * | 2021-04-21 | 2021-07-13 | 广东圣大电子有限公司 | Direction finding microwave channel assembly based on interferometer |
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Application publication date: 20170111 |