CN114024883B - Method, device and system for open-loop parallel testing of multiple products of data link - Google Patents
Method, device and system for open-loop parallel testing of multiple products of data link Download PDFInfo
- Publication number
- CN114024883B CN114024883B CN202111310354.2A CN202111310354A CN114024883B CN 114024883 B CN114024883 B CN 114024883B CN 202111310354 A CN202111310354 A CN 202111310354A CN 114024883 B CN114024883 B CN 114024883B
- Authority
- CN
- China
- Prior art keywords
- transmitting antenna
- receiving
- isolation box
- antenna
- transmitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002955 isolation Methods 0.000 claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000004793 Polystyrene Substances 0.000 claims abstract description 6
- 229920002223 polystyrene Polymers 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- 230000002238 attenuated effect Effects 0.000 claims description 3
- 239000011358 absorbing material Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Details Of Aerials (AREA)
Abstract
The application provides a method, a device and a system for open-loop parallel testing of multiple products of a data chain, and belongs to the technical field of mechanical design. The device includes receiving and dispatching antenna isolation box and transmitting antenna, and transmitting antenna is located the aircraft, and receiving and dispatching antenna isolation box bottom has bracing piece and gyro wheel, and the polystyrene wave absorbing material is laid to the inner wall, and receiving antenna is installed to inside one side, and one side is transmitting antenna connecting hole, and conductive sealing washer is all installed to both sides. The device can be pushed to a test area, the height of the supporting rod is adjusted to be flush with the transmitting antenna, the transmitting antenna is sealed in the receiving and transmitting antenna isolation box, and the receiving antenna and the adjustable attenuator are connected by the high-frequency feeder line, so that the open-loop parallel test of multiple data chain products is realized.
Description
Technical Field
The application relates to the technical field of mechanical design, in particular to a method, a device and a system for open-loop parallel testing of multiple products of a data chain.
Background
In the testing process of the data link equipment of the aircraft system after the installation, the data link is tested in an open loop mode because the on-board antenna is installed and fixed. Because the remote transmission requirements of tens or even thousands of kilometers are required to be met in the task of the data link of the aircraft, the transmitter has high transmitting power and the receiver has high sensitivity, so that the wireless transmission links of the data link can generate mutual interference during open loop parallel test in a small space of a test workshop, and the test result can not truly reflect the working state and performance quality of a product. During workshop test, single-product single-wire test operation can be performed only, so that the influence of mutual interference of wireless transmission links in the open loop test of the data link of the aircraft system on the test result is avoided. The single-product single-line operation progress often cannot meet the test requirement of mass production of the aircraft system, and the mass production progress is seriously affected.
Disclosure of Invention
The application provides a method, a device and a system for open-loop parallel testing of multiple data link products, which aim to solve the problems of low single-line testing efficiency and mutual interference of parallel testing data link wireless transmission links in the prior art. The technical scheme is as follows:
in a first aspect, a device for open loop parallel testing of multiple products of a data link is provided, comprising a transceiver antenna isolation box and a transmitting antenna, wherein the transmitting antenna is positioned on an aircraft,
the receiving and transmitting antenna isolation box is made of metal materials, a wave absorbing layer is covered on the inner surface, a transmitting antenna connecting hole is formed in one side of the receiving and transmitting antenna isolation box, the size of the transmitting antenna connecting hole is larger than that of the transmitting antenna, and a conductive sealing ring is arranged in the transmitting antenna connecting hole; a receiving antenna is arranged in the other side of the receiving-transmitting antenna isolation box, a conductive sealing ring and an adjustable attenuator are arranged outside the other side of the receiving-transmitting antenna isolation box, and the receiving antenna is connected with the adjustable attenuator through a high-frequency feeder;
the transmitting antenna is used for receiving signals output by the aircraft and transmitting the signals to the receiving antenna in the electromagnetic closed space of the receiving-transmitting antenna isolation box;
the adjustable attenuator is used for attenuating signals received by the receiving antenna and transmitting the signals to the receiver.
Optionally, the device further comprises a support frame,
the support frame is located the bottom of receiving and dispatching antenna isolation box, the bottom of support frame is equipped with the gyro wheel. The installation of gyro wheel is convenient for receive and dispatch antenna isolation box position and removes, uses manpower sparingly, removes conveniently.
The middle part of the support frame is also provided with a height adjuster. An inner connecting rod is arranged in the outer rod of the support frame, the height adjuster is rotated clockwise, the inner connecting rod moves upwards, the support frame lengthens, and the height of the receiving and transmitting antenna isolation box is lifted. The height of the support frame is adjustable, and the support frame can be suitable for testing the data chains of the aircrafts with different heights.
Optionally, the transceiver antenna isolation box is made of aluminum alloy materials. The aluminum alloy material has good shielding effect, low price, light weight and good structure.
Optionally, the wave absorbing layer is a polystyrene layer. The polystyrene layer has a plastic shape and good wave absorbing performance.
In a second aspect, a method for open loop parallel testing of a data link multi-product is provided, the method comprising:
moving the 1 receiving and transmitting antenna isolation box to a transmitting antenna of the aircraft;
flush the height of the transmitting antenna connecting hole of the receiving and transmitting antenna isolation box with the transmitting antenna;
the transmitting antenna is arranged in a receiving and transmitting antenna isolation box, and the transmitting antenna connecting hole is sealed by a conductive sealing ring;
during testing, the transmitting antenna transmits signals output by the aircraft to the receiving antenna in the electromagnetic closed space of the receiving-transmitting antenna isolation box; the adjustable attenuator receives signals transmitted by the receiving antenna through a high-frequency feeder line, attenuates the signals and transmits the attenuated signals to the receiver.
Optionally, the method further comprises:
and adjusting a height adjuster on a supporting frame of the receiving and transmitting antenna isolation box to enable the height of a transmitting antenna connecting hole of the receiving and transmitting antenna isolation box to be flush with the transmitting antenna. When the test is performed, the heights of the transmitting antenna and the receiving antenna are consistent, and the test device can adapt to different aircraft data link tests.
In a third aspect, a system for open loop parallel testing of multiple products of a data chain is provided, comprising a plurality of aircrafts and a plurality of testing devices, wherein the aircrafts and the testing devices are in one-to-one correspondence,
each group of aircrafts and test equipment is provided with a device for carrying out open-loop parallel test on multiple products of a data chain, and the aircrafts comprise a transmitter and a power amplifier, wherein the power amplifier is used for amplifying signals transmitted by the transmitter; the test equipment comprises a receiver, and the device for open-loop parallel testing of the data link multi-product is the device of the first aspect, and is used for transmitting signals output by the aircraft to the receiver in the electromagnetic closed space of the receiving and transmitting antenna isolation box.
According to the application, the receiving and transmitting antenna isolation box is adopted, wireless signals transmitted by the single aircraft data chain transmitting antenna are hermetically isolated in the electromagnetic shielding box body, and are transmitted to the receiving antenna in the box body, so that the mutual interference of wireless transmission links when a plurality of aircrafts test the aircraft system data chains in parallel in an open loop manner is effectively avoided, the parallel test of multiple products of the aircraft system data chains is realized, the technical problem of low single-line test efficiency is solved, and the test efficiency is greatly improved.
Drawings
FIG. 1 is a schematic diagram of an apparatus for open loop parallel testing of multiple products of a data chain provided by the present application;
fig. 2 is a schematic diagram of a transceiver antenna isolation box provided by the application;
FIG. 3 is a schematic view of a support frame according to the present application;
FIG. 4 is a schematic diagram of a multi-product parallel test provided by the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without making any inventive effort are intended to fall within the scope of the present application.
According to the application, the receiving and transmitting antenna isolation box is adopted, wireless signals transmitted by the single aircraft data chain transmitting antenna are hermetically isolated in the electromagnetic shielding box body, and are transmitted to the receiving antenna in the box body, so that the mutual interference of wireless transmission links is effectively avoided when a plurality of aircraft are tested simultaneously and the aircraft system data chains work in an open loop parallel manner, the open loop parallel test of the aircraft system data chains and the plurality of products is realized, and the mass production test efficiency is greatly improved.
The application provides a device for open-loop parallel testing of multiple products of a data chain, as shown in figure 1, a receiving and transmitting antenna isolation box 3 and a transmitting antenna 6, wherein the transmitting antenna 6 is positioned on an aircraft 1,
the receiving and transmitting antenna isolation box 3 is made of metal materials, as shown in fig. 2, the inner surface is provided with a wave absorbing layer, one side is provided with a transmitting antenna connecting hole, the size of the transmitting antenna connecting hole is larger than that of the transmitting antenna 6, and the transmitting antenna connecting hole is provided with a conductive sealing ring; as shown in fig. 1, a receiving antenna 7 is arranged inside the other side of the receiving-transmitting antenna isolation box 3, a conductive sealing ring and an adjustable attenuator 8 are arranged outside the other side of the receiving-transmitting antenna isolation box 3, and the receiving antenna 7 is connected with the adjustable attenuator 8 through a high-frequency feeder;
the transmitting antenna 6 is used for receiving signals output by the aircraft and transmitting the signals to the receiving antenna 7 in the electromagnetic closed space of the receiving-transmitting antenna isolation box 3;
the adjustable attenuator 8 is used for attenuating the signal received by the receiving antenna 7 and transmitting the signal to the receiver 9. The receiving and transmitting antenna isolation box is made of metal materials, the inner surface is covered with a wave absorbing layer, the side surface is provided with a transmitting antenna connecting hole, the size of the transmitting antenna connecting hole is larger than that of the transmitting antenna, and the transmitting antenna connecting hole is provided with a conductive sealing ring; a receiving antenna and an adjustable attenuator are arranged in the receiving and transmitting antenna isolation box, and the receiving antenna and the adjustable attenuator are connected through a high-frequency feeder line;
the transmitting antenna is used for receiving signals output by the aircraft and transmitting the signals to the receiving antenna in an electromagnetic closed space of the receiving and transmitting antenna isolation box;
the adjustable attenuator is used for attenuating signals received by the receiving antenna and transmitting the signals to the receiver.
Optionally, as shown in fig. 2, the device further comprises a support frame,
the support frame is located the bottom of receiving and dispatching antenna isolation box. The bottom of the supporting frame is provided with a roller.
The middle part of the support frame is also provided with a height adjuster. For example, the height adjuster may be as shown in fig. 3. An inner rod is arranged in the outer rod of the support frame, the height adjuster is rotated clockwise, the inner rod moves upwards, the support frame is lengthened, and the height of the receiving and transmitting antenna isolation box is lifted.
The height of the support frame is adjustable, and the support frame can be suitable for testing aircraft data chains with different heights.
Optionally, the device further comprises a roller. The roller is arranged at the bottom of the supporting frame. The roller is convenient to mount and move, saves labor and is convenient to move.
Optionally, the device further comprises a transceiver antenna isolation box 3, and the transceiver antenna isolation box 3 is made of aluminum alloy materials. The aluminum alloy material has good shielding effect, low price, light weight and good structure.
Optionally, the device further comprises a wave absorbing layer, wherein the wave absorbing layer is a polystyrene layer. The polystyrene layer has a plastic shape and good wave absorbing performance.
The application also provides a method for open loop parallel testing of multiple products of a data chain, referring to fig. 1, the method comprises the following steps:
moving the 1 transceiver antenna isolation box 3 to a transmitting antenna 6 of the aircraft;
the height of a transmitting antenna connecting hole of the receiving and transmitting antenna isolation box 3 is flush with the transmitting antenna 6;
the transmitting antenna is arranged in the receiving and transmitting antenna isolation box 3, and the connecting hole of the transmitting antenna is sealed by a conductive sealing ring;
during testing, the transmitting antenna 6 transmits signals output by the aircraft to the receiving antenna 7 in the electromagnetic closed space of the receiving and transmitting antenna isolation box 3; the adjustable attenuator 8 receives the signal transmitted by the receiving antenna 7 through a high-frequency feeder line, attenuates the signal, and transmits the attenuated signal to the receiver 9.
Optionally, the method further comprises:
and adjusting a height adjuster on a supporting frame of the transceiver antenna isolation box 3 to enable the height of a transmitting antenna connecting hole of the transceiver antenna isolation box 3 to be flush with the transmitting antenna 6.
The application ensures that the heights of the transmitting antenna and the receiving antenna are consistent during testing, and can adapt to different aircraft data link tests.
The application also provides a system for open-loop parallel testing of multiple products of a data chain, as shown in figure 4, the system comprises a plurality of aircrafts and testing equipment, the aircrafts and the testing equipment are in one-to-one correspondence,
each group of aircrafts and test equipment is provided with a device for carrying out open-loop parallel test on multiple products of a data chain, each aircrafts comprises a transmitter and a power amplifier, and the power amplifier is used for amplifying signals transmitted by the transmitter; the test equipment comprises a receiver, and the device for carrying out open-loop parallel test on multiple products of the data chain is the device shown in fig. 1 and is used for transmitting signals output by the aircraft to the receiver in an electromagnetic closed space of the receiving and transmitting antenna isolation box. For example, the system comprises 10 aircrafts 1 and 10 test devices 2, wherein the 10 aircrafts 1 and the 10 test devices 2 are in one-to-one correspondence. Each set of aircraft 1 and test equipment 2 is provided with a device for open loop parallel testing of multiple products of a data chain, wherein the aircraft 1 comprises a transmitter 4 and a power amplifier 5, and the power amplifier 5 is used for amplifying signals transmitted by the transmitter 4; the test equipment 2 comprises a receiver 9, and the device for testing the open loop of the data link multi-product is the device for testing the open loop of the data link multi-product provided by the application, as shown in fig. 1, and is used for transmitting signals output by the aircraft 1 to the receiver 9 in an electromagnetic closed space of the receiving and transmitting antenna isolation box 3.
The technical effects of the application at least comprise: the receiving and transmitting antenna isolation box is adopted, wireless signals emitted by the single aircraft data chain emitting antenna are isolated in the electromagnetic shielding box body in a sealing mode, the wireless signals are transmitted to the receiving antenna in the box body, mutual interference of wireless transmission links when 10 aircraft system data chains are tested simultaneously in parallel open loop test is effectively avoided, 10 products of the aircraft system data chains are tested in parallel, the technical problem of low single-line test efficiency is solved, and production test efficiency is greatly improved.
The installation method of the device comprises the following steps:
moving the 1 transceiver antenna isolation box 3 to a transmitting antenna 6 of the aircraft;
flush the height of the transmitting antenna connecting hole of the receiving and transmitting antenna isolation box 3 with the transmitting antenna 6;
the transmitting antenna is arranged in the receiving and transmitting antenna isolation box 3, and the transmitting antenna connecting hole is sealed by a conductive sealing ring;
the adjustable attenuator 8 is connected with the receiving antenna 7 and the receiver 9 through high-frequency feeder lines.
The disassembly method of the device comprises the following steps:
disconnecting the adjustable attenuator 8 from the receiving antenna 7 and the receiver 9;
taking down the conductive sealing ring of the transmitting antenna connecting hole;
the transmitting antenna is moved out of the receiving-transmitting antenna isolation box 3;
a conductive sealing ring for installing the transmitting antenna connecting hole;
restoring the height of the receiving and transmitting antenna isolation box to the lowest height;
and moving the receiving and transmitting antenna isolation box to the equipment storage area.
Moving the 1 transceiver antenna isolation box 3 to a transmitting antenna 6 of the aircraft;
and the height of the transmitting antenna connecting hole of the receiving and transmitting antenna isolation box 3 is flush with the transmitting antenna 6.
The foregoing has outlined rather broadly the more detailed description of the application in order that the detailed description thereof that follows may be better understood, and in order that the present application may be better understood. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.
Claims (8)
1. An apparatus for open loop parallel testing of multiple products of a data chain, comprising: a receiving and transmitting antenna isolation box and a transmitting antenna, wherein the transmitting antenna is positioned on an aircraft,
the receiving and transmitting antenna isolation box is made of metal materials, a wave absorbing layer is covered on the inner surface, a transmitting antenna connecting hole is formed in one side of the receiving and transmitting antenna isolation box, the size of the transmitting antenna connecting hole is larger than that of the transmitting antenna, and a conductive sealing ring is arranged in the transmitting antenna connecting hole; a receiving antenna is arranged in the other side of the receiving-transmitting antenna isolation box, a conductive sealing ring and an adjustable attenuator are arranged outside the other side of the receiving-transmitting antenna isolation box, and the receiving antenna is connected with the adjustable attenuator through a high-frequency feeder;
the transmitting antenna is used for receiving signals output by the aircraft and transmitting the signals to the receiving antenna in the electromagnetic closed space of the receiving-transmitting antenna isolation box;
the adjustable attenuator is used for attenuating signals received by the receiving antenna and transmitting the signals to a receiver in the test equipment.
2. The apparatus of claim 1, wherein the apparatus further comprises: a supporting frame is arranged on the supporting frame,
the support frame is located the bottom of receiving and dispatching antenna isolation box, the bottom of support frame is equipped with the gyro wheel.
3. The apparatus of claim 2, wherein the device comprises a plurality of sensors,
the middle part of the support frame is also provided with a height adjuster.
4. The apparatus of claim 1, wherein the transceiver antenna isolation box is made of an aluminum alloy material.
5. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the wave absorbing layer is a polystyrene layer.
6. A method for open loop parallel testing of data link multiproducts, for use in the apparatus of any one of claims 1 to 5, the method comprising:
moving the 1 receiving and transmitting antenna isolation box to a transmitting antenna of the aircraft;
flush the height of the transmitting antenna connecting hole of the receiving and transmitting antenna isolation box with the transmitting antenna;
the transmitting antenna is arranged in a receiving and transmitting antenna isolation box, and the transmitting antenna connecting hole is sealed by a conductive sealing ring;
during testing, the transmitting antenna transmits signals output by the aircraft to the receiving antenna in the electromagnetic closed space of the receiving-transmitting antenna isolation box; the adjustable attenuator receives signals transmitted by the receiving antenna through a high-frequency feeder line, attenuates the signals and transmits the attenuated signals to a receiver in the test equipment.
7. The method of claim 6, wherein the method further comprises:
and adjusting a height adjuster on a supporting frame of the receiving and transmitting antenna isolation box to enable the height of a transmitting antenna connecting hole of the receiving and transmitting antenna isolation box to be flush with the transmitting antenna.
8. A system for open-loop parallel testing of multiple products of a data chain is characterized by comprising a plurality of aircrafts and testing equipment, wherein the aircrafts and the testing equipment are in one-to-one correspondence,
each group of aircrafts and test equipment is provided with a device for carrying out open-loop parallel test on multiple products of a data chain, and the aircrafts comprise a transmitter and a power amplifier, wherein the power amplifier is used for amplifying signals transmitted by the transmitter; the test equipment comprises a receiver, and the device for open-loop parallel testing of the data link multi-product is the device of any one of claims 1 to 5 and is used for transmitting signals output by the aircraft to the receiver in the electromagnetic closed space of the receiving-transmitting antenna isolation box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310354.2A CN114024883B (en) | 2021-11-05 | 2021-11-05 | Method, device and system for open-loop parallel testing of multiple products of data link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310354.2A CN114024883B (en) | 2021-11-05 | 2021-11-05 | Method, device and system for open-loop parallel testing of multiple products of data link |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114024883A CN114024883A (en) | 2022-02-08 |
| CN114024883B true CN114024883B (en) | 2023-11-17 |
Family
ID=80061837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111310354.2A Active CN114024883B (en) | 2021-11-05 | 2021-11-05 | Method, device and system for open-loop parallel testing of multiple products of data link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114024883B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3668939A (en) * | 1969-11-13 | 1972-06-13 | Rex Chainbelt Inc | Plane omnidirectional absorber |
| JP2006217206A (en) * | 2005-02-03 | 2006-08-17 | Oki Electric Ind Co Ltd | Antenna system having damped wave directivity, and portable terminal unit using the same |
| CN201974675U (en) * | 2010-12-10 | 2011-09-14 | 北京空间飞行器总体设计部 | Centralized monitoring system applicable to parallel test for multiple spacecrafts |
| CN102520262A (en) * | 2011-11-15 | 2012-06-27 | 上海卫星工程研究所 | Device and method for testing radio-frequency waveguide of deep space aircraft |
| CN102915029A (en) * | 2012-10-15 | 2013-02-06 | 中国运载火箭技术研究院 | Avionics system automatic test platform based on reusable spacecraft |
| CN204809405U (en) * | 2015-07-13 | 2015-11-25 | 中国电子科技集团公司第十研究所 | Phased array antenna shield cover |
| CN106872831A (en) * | 2017-03-27 | 2017-06-20 | 北京空间飞行器总体设计部 | Interference source determines method in highly sensitive antenna of receiving device band in microwave load satellite |
| CN107607922A (en) * | 2017-10-17 | 2018-01-19 | 西安飞机工业（集团）有限责任公司 | A kind of method of testing and screening arrangement for aircraft weather radar radiance |
| CN207926604U (en) * | 2017-12-28 | 2018-09-28 | 金卡智能集团股份有限公司 | Antenna performance detecting system for intelligence instrument |
| CN110190914A (en) * | 2018-05-22 | 2019-08-30 | 北京机电工程研究所 | Screening arrangement for the anti-interference satellite receiver test of aircraft |
| CN210168041U (en) * | 2019-09-28 | 2020-03-20 | 陶文英 | Parallel data chain system of airplane |
| CN110907956A (en) * | 2019-12-06 | 2020-03-24 | 中国空空导弹研究院 | Aircraft-mounted anti-interference satellite positioning assembly test system |
| CN111801371A (en) * | 2018-03-01 | 2020-10-20 | 莱昂纳多有限公司 | Multilayer radar absorbing laminate made of polymer-based composite material containing graphene nanosheets and used for aircraft and manufacturing method thereof |
| CN112165362A (en) * | 2020-09-09 | 2021-01-01 | 杭州涂鸦信息技术有限公司 | WiFi module weak network test system and method |
| CN112730906A (en) * | 2020-12-18 | 2021-04-30 | 北京航空航天大学 | Thunder and lightning test device for simulating dynamic aircraft |
| CN113108824A (en) * | 2021-04-13 | 2021-07-13 | 内蒙古显鸿科技股份有限公司 | Test system and test method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11105459B2 (en) * | 2018-12-10 | 2021-08-31 | The Boeing Company | Isolation coupler for a structural assembly and method for attenuating a load |
-
2021
- 2021-11-05 CN CN202111310354.2A patent/CN114024883B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3668939A (en) * | 1969-11-13 | 1972-06-13 | Rex Chainbelt Inc | Plane omnidirectional absorber |
| JP2006217206A (en) * | 2005-02-03 | 2006-08-17 | Oki Electric Ind Co Ltd | Antenna system having damped wave directivity, and portable terminal unit using the same |
| CN201974675U (en) * | 2010-12-10 | 2011-09-14 | 北京空间飞行器总体设计部 | Centralized monitoring system applicable to parallel test for multiple spacecrafts |
| CN102520262A (en) * | 2011-11-15 | 2012-06-27 | 上海卫星工程研究所 | Device and method for testing radio-frequency waveguide of deep space aircraft |
| CN102915029A (en) * | 2012-10-15 | 2013-02-06 | 中国运载火箭技术研究院 | Avionics system automatic test platform based on reusable spacecraft |
| CN204809405U (en) * | 2015-07-13 | 2015-11-25 | 中国电子科技集团公司第十研究所 | Phased array antenna shield cover |
| CN106872831A (en) * | 2017-03-27 | 2017-06-20 | 北京空间飞行器总体设计部 | Interference source determines method in highly sensitive antenna of receiving device band in microwave load satellite |
| CN107607922A (en) * | 2017-10-17 | 2018-01-19 | 西安飞机工业（集团）有限责任公司 | A kind of method of testing and screening arrangement for aircraft weather radar radiance |
| CN207926604U (en) * | 2017-12-28 | 2018-09-28 | 金卡智能集团股份有限公司 | Antenna performance detecting system for intelligence instrument |
| CN111801371A (en) * | 2018-03-01 | 2020-10-20 | 莱昂纳多有限公司 | Multilayer radar absorbing laminate made of polymer-based composite material containing graphene nanosheets and used for aircraft and manufacturing method thereof |
| CN110190914A (en) * | 2018-05-22 | 2019-08-30 | 北京机电工程研究所 | Screening arrangement for the anti-interference satellite receiver test of aircraft |
| CN210168041U (en) * | 2019-09-28 | 2020-03-20 | 陶文英 | Parallel data chain system of airplane |
| CN110907956A (en) * | 2019-12-06 | 2020-03-24 | 中国空空导弹研究院 | Aircraft-mounted anti-interference satellite positioning assembly test system |
| CN112165362A (en) * | 2020-09-09 | 2021-01-01 | 杭州涂鸦信息技术有限公司 | WiFi module weak network test system and method |
| CN112730906A (en) * | 2020-12-18 | 2021-04-30 | 北京航空航天大学 | Thunder and lightning test device for simulating dynamic aircraft |
| CN113108824A (en) * | 2021-04-13 | 2021-07-13 | 内蒙古显鸿科技股份有限公司 | Test system and test method |
Non-Patent Citations (2)
| Title |
|---|
| 一种航天器用快速组装式电磁吸波暗室设计;曹志宇;牛升达;;微波学报(第S2期);全文 * |
| 电子战特种飞机的天线隔离度测试;王冰切;苏东林;全力民;欧阳绍修;;宇航计测技术(第03期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114024883A (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110190914B (en) | Shielding device for testing anti-interference satellite receiver of aircraft | |
| CN110031916B (en) | Rainfall intensity measurement method based on satellite-ground link attenuation effect | |
| CN201945687U (en) | Testing device for indoor anti-interference satellite navigation system | |
| CN102331523A (en) | Detection system and detection method of resonant frequency of small antenna | |
| CN211046941U (en) | Radio frequency performance test system | |
| CN114024883B (en) | Method, device and system for open-loop parallel testing of multiple products of data link | |
| WO2021175343A3 (en) | Unmanned aerial vehicle-based outdoor antenna four-dimensional pattern measurement method and apparatus | |
| CN103533554A (en) | Method for predicting coverage of 4G LTE (Long-Term Evolution) network based on 3G path measurement data | |
| CN102014400B (en) | Mobile communication coverage distribution system and coupling radiating elements in corridor | |
| CN106332106A (en) | Wireless analog signal testing system | |
| CN113242098A (en) | Radio frequency performance test system and method | |
| CN210004991U (en) | Base station antenna parameter acquisition device and base station | |
| KR102483340B1 (en) | Simulated target signal generating device and testing method for radar signal processing device using the same | |
| CN206042381U (en) | Wireless analog signal test system | |
| CN112835125A (en) | Multi-probe testing device of multi-degree-of-freedom millimeter wave MU-MIMO system | |
| CN108732429B (en) | Passive intermodulation test device of antenna reflector | |
| Zelený et al. | Initial results from a measurement campaign for low elevation angle links in different environments | |
| CN109131939B (en) | Satellite equipment layout method and system based on electromagnetic radiation environment | |
| CN108769916A (en) | A kind of electronic enclosure system and its implementation | |
| CN204928841U (en) | Test system of wireless communication equipment | |
| CN109737922B (en) | Communication iron tower monitoring device and method | |
| CN204046830U (en) | A kind of is the emergency communication recovery system of carrier based on communication balloon | |
| CN207022005U (en) | A kind of radio propagation test system in Railway Tunnel | |
| US3496469A (en) | System and method for measurement of path losses in microwave relay surveying | |
| CN111600650A (en) | Method, system and device for verifying satellite-ground radio frequency transceiving |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |