CN111505594A - Portable radar signal simulator - Google Patents
Portable radar signal simulator Download PDFInfo
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- CN111505594A CN111505594A CN202010362622.4A CN202010362622A CN111505594A CN 111505594 A CN111505594 A CN 111505594A CN 202010362622 A CN202010362622 A CN 202010362622A CN 111505594 A CN111505594 A CN 111505594A
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 16
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 16
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 5
- 238000004100 electronic packaging Methods 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 17
- 238000013461 design Methods 0.000 description 19
- 238000012360 testing method Methods 0.000 description 7
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- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention belongs to the technical field of maintenance and guarantee of an airplane outfield and relates to a portable radar signal simulator. The radar signal simulator comprises an antenna module, a frequency synthesis module, a display control module and a power supply module, wherein the antenna module, the frequency synthesis module, the display control module and the power supply module are arranged in the shell; the frequency synthesis module integrates a 2 GHz-18 GHz functional module and an 18 GHz-40 GHz functional module, and an analog signal output interface is reserved; the antenna module integrates a slot line antenna and an antenna horn body, receives the radar analog signals output by the frequency synthesis module, and respectively transmits analog signals of 2 GHz-18 GH and 18 GHz-40 GHz through the slot line antenna and the antenna horn body; the display control module completes the setting of radar signal parameters and the display of working states; the invention solves the current situations that the radar signal simulator has large volume and heavy weight and is inconvenient for external field guarantee carrying, and improves the maintenance efficiency of army support personnel.
Description
Technical Field
The invention belongs to the technical field of maintenance and guarantee of an airplane outfield and relates to a portable radar signal simulator.
Background
At present, the field of domestic helicopters adopts a two-level (army level and ground level) maintenance system and three maintenance modes (timing, condition and state monitoring) to design:
and (4) army-level maintenance, namely, on the equipment use site, performing fault detection, isolation and maintenance by ground staff or army support personnel by using BIT or outfield support equipment, wherein L RU replacement is mainly adopted for maintenance.
And base-level maintenance, namely returning the fault L RU to a repair shop or a undertaking unit of an army for repair, and performing fault detection, isolation and maintenance by using all means such as complete repair facilities and guarantee equipment to repair the fault L RU.
The radar signal simulator of the guarantee equipment equipped by the electronic self-defense or alarm equipment of the original domestic helicopter has the following problems:
a) the common working frequency adopts a point frequency or narrow-band frequency band, the data transmission efficiency is low, the frequency band coverage is incomplete, and the actual use requirements of troops can not be met.
b) Has the defects of large volume and heavy weight, so that the outfield security is inconvenient to carry.
c) When the outdoor electric heating water heater works, an external alternating current power supply is required, so that the environment is required, the use is limited, and the requirement of convenience and quickness in outdoor use cannot be met.
In order to shorten the maintenance time of army and base levels and simultaneously consider the maintenance and detection of equipment during ordinary combat missions or scheduled inspections, the army urgently needs a miniaturized portable signal simulator to carry out quick and convenient maintenance and guarantee on an electronic self-defense system.
Disclosure of Invention
The purpose of the invention is: a portable radar signal simulator is designed to solve the technical problem that the existing maintenance mode is inconvenient.
In order to solve the technical problem, the technical scheme of the invention is as follows:
a portable radar signal simulator, said portable radar signal simulator comprising: the antenna module, the frequency synthesis module, the display control module and the power supply module are arranged in the shell;
the frequency synthesis module integrates a 2 GHz-18 GHz functional module and an 18 GHz-40 GHz functional module, and an analog signal output interface is reserved;
the antenna module integrates a slot line antenna and an antenna horn body, receives radar analog signals output by the frequency synthesis module, and respectively transmits analog signals of 2 GHz-18 GH and 18 GHz-40 GHz through the slot line antenna and the antenna horn body;
and the display control module completes the setting of the radar signal parameters and the display of the working state.
And the frequency synthesizer module is internally provided with a temperature controller with a temperature frequency management function. In a miniaturized design, the relationship between the frequency and the temperature of a device is more compact, and a temperature controller is required to perform frequency stability and consistency control.
The temperature controller internally contains the relationship between frequency and temperature. And taking the radar signal simulator as a test object, acquiring a frequency and temperature test data set, and obtaining the relationship between the frequency and the temperature.
The frequency synthesis module adopts microwave electronic packaging and assembling technology, so that the weight is light, and the handheld operation is convenient.
The power supply in the power supply module is a rechargeable power supply.
And an antenna housing is arranged on the periphery of the antenna module.
Preferably, the operation keys in the display control module are membrane keys, so that the display control module is reliable and durable, and is reasonable in position setting and convenient to operate.
Preferably, a color liquid crystal screen is adopted in the display control module, so that the information identification degree and the use comfort degree of the equipment in the field are improved.
Preferably, the power module is powered by a lithium battery.
The invention has the beneficial effects that:
the portable radar signal simulator disclosed by the invention realizes wide frequency coverage of the radar signal simulator and meets the actual use requirements of the current troops for the first time.
The invention has the advantages of high reliability, high stability and high safety and improves the working efficiency for the low-phase-noise high-stray suppression, high-speed accurate frequency hopping control and stable and consistent output power control of the radar signal simulator.
The miniaturized handheld design solves the problems that the radar signal simulator is large in size, heavy in weight and inconvenient to carry in an outfield guarantee, and improves the maintenance efficiency of army support personnel.
The rechargeable lithium battery is integrated in the radar signal simulator, an external power supply is not needed during use, the power supply limitation of the existing radar signal simulator to the external environment is eliminated, the electric quantity of the designed lithium battery is enough to guarantee the service time of maintenance, and the guarantee requirement of armies in the field battle environment is met.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiment of the present invention will be briefly explained. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic block diagram of a portable radar signal simulator of the present invention;
FIG. 2 is a schematic diagram of a portable radar signal simulator assembly of the present invention;
the antenna comprises an antenna housing 1, an antenna module 2, a frequency synthesis module 3, a power module 4, a display control module 5 and a shell 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Features of various aspects of embodiments of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. The following description of the embodiments is merely intended to better understand the present invention by illustrating examples thereof. The present invention is not limited to any particular arrangement or method provided below, but rather covers all product structures, any modifications, alterations, etc. of the method covered without departing from the spirit of the invention.
In the drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention.
The embodiment provides a wide-frequency-coverage, miniaturized and portable handheld radar analog annunciator, a schematic block diagram of which is shown in fig. 1, and a specific composition schematic diagram of which is shown in fig. 2, and which includes an antenna housing 1, an antenna module 2, a frequency synthesis module 3, a power module 4, a display control module 5 and a housing 6.
a) Designing wide frequency coverage:
1) the frequency synthesizer module 3 integrates a 2 GHz-18 GHz module and an 18 GHz-40 GHz module to generate 2 GHz-40 GHz full-band signals.
2) The antenna module 2 adopts a mode of integrating a slot line antenna and an antenna horn body to cover signal transmission of 2 GHz-40 GHz full frequency band.
b) Miniaturized handheld design:
1) and for the display control module 5 and the power supply module 4, a minimized space design is provided through reasonable layout, design simulation, iterative optimization and material model selection so as to reduce the volume and the weight of the equipment.
2) The research on the miniaturized design of the frequency synthesis module 3 is developed, in the design process of the module, a radio frequency component with a small volume is selected to replace a radio frequency unit with a large traditional volume, microwave electronic packaging and assembling processes are utilized, multiple integrated circuit chips and active passive devices are combined, the internal details of the module are sealed, and the design of a novel miniature radio frequency system is completed in a fine microstructure.
c) Low phase noise high spur rejection
1) Optimizing frequency comprehensive source layout: in order to solve clutter influence caused by miniaturization, a frequency comprehensive source is subjected to fine and reasonable optimized layout in design, and stray signals of frequency components are effectively suppressed in each link as much as possible, so that the occurrence of unknown frequency components is reduced;
2) and (3) cavity shielding design: considering that the mutual influence of loss amplification gain between links is different, the cavity shielding is utilized to increase the channel isolation effect;
3) reasonable design of circuits and components: so that the isolation between each different frequency component passageway all is higher than 60dBc as the target, puts the components and parts of difference, and physical simulation and actual test verify after, constantly adjust and confirm that influence is minimum puts the structure, improve stray suppression such as space mixing, third-order intermodulation to restrain the high spurious problem of low phase noise that brings in the miniaturized design.
d) High speed accurate frequency hopping control
The frequency hopping control is easy to realize in the traditional frequency division, and is difficult in miniaturization design. The internal modulation switch is provided with a high-speed multi-level linkage variable frequency divider to control frequency hopping, and the frequency divider is continuously simulated and verified on the basis of theoretical design and meets the requirements of modulation speed and modulation depth by combining with actual experimental verification.
e) Control of stable consistency of output frequency
Because the equipment needs to adapt to the requirements of working under different temperature environment conditions, and compared with a radar signal simulator with a larger volume, in the miniaturization design, the relationship between the frequency and the temperature of the device is tighter, and the device is a non-negligible factor. This requires stable and consistent control of the frequency.
1) Firstly, a control relation between the frequency and the test temperature is provided:
f (t), where t represents the usage temperature and f represents the output frequency.
2) Using radar signal simulator as test object to obtain test data set
{(t1，f1)，(t2，f2)，...，(tn，fn)}
3) And fitting the test data set to obtain a relational expression of frequency and temperature.
4) And designing a temperature controller to realize temperature frequency management.
f) Interface friendliness: the display control module 5 has the functions of frequency synthesis module selection and information display.
1) The bad emotion brought to people by the radar signal simulator in the use of a complex field environment is considered during design, and information is clearly transmitted to reduce the memory load.
2) Based on the color liquid crystal screen display, the interface design selects a proper color distribution principle, and the information identification degree and the use comfort degree of the equipment during use are improved.
3) The software development adopts L inux operating system to combine with Qt development platform to complete the design of the visual friendly interface.
g) Portable design: when the power supply module 4 is designed, the rechargeable battery is considered to replace the original power supply mode of the external power supply. The radar signal simulator adopts the lithium cell power supply, once charges to power module every 3 months to be equipped with power module spare part, if equipment outage in the work, can directly change power module and guarantee to accomplish work.
The radar signal simulator display module 5 is provided with corresponding keys which can input and complete the setting of radar signal parameters and the display of working states, and the user operation function interface is reasonable in layout, good in operability and simple to identify; meanwhile, the operation keys adopt thin film keys, so that the device is reliable and durable, reasonable in position arrangement and convenient to operate; the maintenance efficiency can be improved while the comfort and convenience of the operation and use personnel are ensured.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (9)
1. A portable radar signal simulator, characterized by: the portable radar signal simulator comprises: the antenna module, the frequency synthesis module, the display control module and the power supply module are arranged in the shell;
the frequency synthesis module integrates a 2 GHz-18 GHz functional module and an 18 GHz-40 GHz functional module, and an analog signal output interface is reserved;
the antenna module integrates a slot line antenna and an antenna horn body, receives radar analog signals output by the frequency synthesis module, and respectively transmits analog signals of 2 GHz-18 GH and 18 GHz-40 GHz through the slot line antenna and the antenna horn body;
and the display control module completes the setting of the radar signal parameters and the display of the working state.
2. The portable radar signal simulator of claim 1, wherein: and the frequency synthesizer module is internally provided with a temperature controller with a temperature frequency management function.
3. The portable radar signal simulator of claim 2, wherein: the temperature controller internally contains the relationship between frequency and temperature.
4. The portable radar signal simulator of claim 1, wherein: the frequency synthesis module adopts microwave electronic packaging and assembling technology.
5. The portable radar signal simulator of claim 1, wherein: the power supply in the power supply module is a rechargeable power supply.
6. The portable radar signal simulator of claim 1, wherein: and the operation keys in the display control module adopt thin film keys.
7. The portable radar signal simulator of claim 1, wherein: and the display control module adopts a color liquid crystal screen.
8. The portable radar signal simulator of claim 1, wherein: and an antenna housing is arranged on the periphery of the antenna module.
9. The portable radar signal simulator of claim 5, wherein: the power module adopts a lithium battery for power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010362622.4A CN111505594A (en) | 2020-04-30 | 2020-04-30 | Portable radar signal simulator |
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| CN202010362622.4A CN111505594A (en) | 2020-04-30 | 2020-04-30 | Portable radar signal simulator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113393049A (en) * | 2021-06-25 | 2021-09-14 | 中国人民解放军32181部队 | Maintenance security object consumption prediction method based on linear regression model |
| CN113552549A (en) * | 2021-07-28 | 2021-10-26 | 北京环境特性研究所 | Method and device for airborne downward-looking measurement calibration by using active calibration equipment |
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Application publication date: 20200807 |