CN218524868U - Novel microwave direction finding system - Google Patents
Novel microwave direction finding system Download PDFInfo
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- CN218524868U CN218524868U CN202120732954.7U CN202120732954U CN218524868U CN 218524868 U CN218524868 U CN 218524868U CN 202120732954 U CN202120732954 U CN 202120732954U CN 218524868 U CN218524868 U CN 218524868U
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Abstract
The utility model relates to a microwave direction finding technical field, the purpose provides a novel microwave direction finding system, including antenna linear array, wave filter, mixer, amplification module, modulation module, direction finding receiver, treater, antenna linear array is used for receiving radio signal, and antenna linear array is connected with the wave filter, and the wave filter is used for crossing other wave bands except filtering microwave; the filter is connected with the mixer, and the mixer is used for changing the input microwave into a fixed intermediate frequency; the mixer is connected with the amplifying module, and the amplifying module is used for amplifying the fixed intermediate frequency; the amplifying module is connected with the modulating module, and the modulating module is used for converting the amplified intermediate frequency signal into a digital signal; the modulation module is connected with the direction-finding receiver; the direction-finding receiver is connected with the processor, and the direction and the distance of the microwave are measured through the design, so that the purpose of determining the origin of the microwave and reducing the complexity of a direction-finding system is achieved.
Description
Technical Field
The utility model relates to a microwave direction finding technical field, concretely relates to novel microwave direction finding system.
Background
The passive direction-finding technology is widely applied to the fields of electronic detection, alarm, radio monitoring, search and rescue and the like, and a system is constructed by applying the antenna technology, so that the target direction-finding function can be realized by utilizing the transmission and the reception of electromagnetic waves.
However, the existing detection system has a narrow bandwidth, and cannot be used under the ultra-wideband condition, and a plurality of antennas with different frequency bands need to be used in a switching manner, so that the volume of the whole system is increased, and the whole system is not favorable for installation and use; the microwave refers to an electromagnetic wave with a frequency of 300MHz-300GHz, and is a short for a limited frequency band in radio waves, namely an electromagnetic wave with a wavelength of 0.1 mm-1 m. The microwave frequency is higher than the frequency of general radio waves, which is also commonly called as ultrahigh frequency electromagnetic waves, and the microwave has longer wavelength than other electromagnetic waves used for radiation heating, such as infrared rays, far infrared rays and the like, so that the microwave has better penetrability;
therefore, the complexity of the system can be greatly reduced by carrying out direction finding on the microwave, and the direction of the microwave is accurately positioned.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a novel microwave direction finding system, can provide and carry out the direction finding to the microwave, reduces the complexity of system, the direction of accurate location microwave.
The method is realized by the following technical scheme:
a novel microwave direction finding system comprises an antenna linear array, a filter, a frequency mixer, an amplification module, a modulation module, a direction finding receiver and a processor;
the antenna linear array is used for receiving radio signals and is connected with a filter, and the filter is used for filtering other wave bands except microwaves; the filter is connected with the mixer, and the mixer is used for changing the input microwave into a fixed intermediate frequency; the mixer is connected with the amplifying module, and the amplifying module is used for amplifying the fixed intermediate frequency; the amplifying module is connected with the modulating module, and the modulating module is used for converting the amplified intermediate frequency signal into a digital signal; the modulation module is connected with the direction-finding receiver; the direction-finding receiver is connected with the processor.
Furthermore, the device also comprises a positioning module, an image signal processing module and a display screen; the positioning module is connected with the processor, the image signal processing module is connected with the processor, and the display screen is connected with the image signal processing module.
Further, the processor is also connected with a storage module, and a map is stored in the storage module.
Furthermore, the image processing module is connected with the display screen through a wireless communication module.
Furthermore, the positioning module adopts a Beidou positioning system.
Furthermore, the processor is further connected with a power module, and the power module is used for supplying power to the filter, the frequency mixer, the amplifying module, the modulating module, the direction finding receiver and the processor.
Furthermore, the direction-finding receiver adopts a full-digital direction-finding receiver.
Further, the processor processes the chip using STM32F 407.
The beneficial effects of the utility model are that:
(1) The utility model discloses an electromagnetic wave that propagates in the detectable environment can be detected in the design of antenna linear array, wave filter to filter the ripples of other wave bands except the microwave, carry out the direction finding to the microwave.
(2) The utility model discloses a design of mixer, amplification module can become the microwave behind the fixed intermediate frequency through the mixing, can carry out the amplification of higher gain to the intermediate frequency, because the intermediate frequency is fixed, so the intermediate frequency amplification module is stable, can obtain sufficient amplification before the inspection.
(3) The utility model discloses a design of direction finding receiver can calculate the microwave after handling, obtains direction and the distance of microwave.
(4) The utility model discloses a GPS orientation module, image signal processing module, display screen's design obtains the address coordinate of microwave on the map according to direction finding receiver's the direction of the microwave that obtains and distance, converts the image information that obtains the coordinate and shows on the display screen through image signal processing module with the left side.
Drawings
Fig. 1 is a system diagram of the microwave direction finding system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, those skilled in the art can realize all other embodiments without creative efforts.
In the description of the present invention, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
A novel microwave direction finding system comprises an antenna linear array, a filter, a frequency mixer, an amplification module, a modulation module, a direction finding receiver and a processor;
the antenna linear array is used for receiving radio signals, and is connected with a filter which is used for filtering other wave bands except microwaves; the filter is connected with the mixer, and the mixer is used for changing the input microwave into a fixed intermediate frequency; the mixer is connected with the amplifying module, and the amplifying module is used for amplifying the fixed intermediate frequency; the amplifying module is connected with the modulating module, and the modulating module is used for converting the amplified intermediate frequency signal into a digital signal; the modulation module is connected with the direction-finding receiver; the direction-finding receiver is connected with the processor.
The working principle of the scheme is briefly described as follows:
the utility model discloses in, antenna linear array adopts circular arrangement, receive the electromagnetic wave that comes from each direction, such design makes can accept the electromagnetic wave of each direction, its angle of pitch information is also more accurate, make things convenient for the calculation of follow-up direction finding receiver, and send the electromagnetic wave to the wave filter, the wave filter filters except the microwave, other electromagnetic wave that the frequency is in other frequencies outside 300MHz-300GHz promptly, the microwave is than other electromagnetic waves that are used for radiant heating, such as infrared ray, far infrared isowavelength is longer, consequently, better penetrability has, the electromagnetic signal that also obtains that the detection microwave is more accurate, and send remaining microwave to the mixer, the mixer carries out the mixing conversion with the microwave and becomes fixed intermediate frequency, send the amplification module again, microwave after the mixing can obtain the great amplification of income, the amplification module gives modulation module again the intermediate frequency after will amplifying, modulation module converts the signal to the digital signal that can be surveyed to the receiver and received after the microwave after handling the conversion, calculate direction and distance of microwave, and send the result of calculating to the treater, the processor is according to direction and distance of microwave, the cooperation location and the map information that the GPS information processing module on the wireless display screen that will calculate the microwave on the wireless display screen.
Furthermore, the device also comprises a positioning module, an image signal processing module and a display screen; the positioning module is connected with the processor, the image signal processing module is connected with the processor, and the display screen is connected with the image signal processing module.
Furthermore, the processor is further connected with a storage module, a map is stored in the storage module, and the position of the microwave on the map can be directly calculated according to the map, so that a user can conveniently determine the position of the microwave.
Furthermore, the image processing module is connected with the display screen through the wireless communication module, and information is sent through the wireless communication module, so that the wiring process with a complicated wired wiring mode is avoided, and meanwhile, the circuit is not required to be maintained and checked.
Furthermore, the positioning module adopts a Beidou positioning system, and the accuracy of the Beidou positioning system in China is higher than that of a GPS positioning system under some remote complicated terrains in China.
Furthermore, the processor is also connected with a power module, the power module is used for supplying power to the filter, the frequency mixer, the amplifying module, the modulating module, the direction finding receiver and the processor, and the power module is used for providing a required working power supply for each electronic element.
Furthermore, the direction-finding receiver adopts a full-digital direction-finding receiver which adopts an interferometer direction-finding technology based on phase measurement, and has the advantages of passive direction finding, high direction-finding precision, high speed and high sensitivity.
Furthermore, the processor adopts STM32F407 processing chip, the series of microcontrollers shorten the performance gap between the equipment adopting 8-bit and 16-bit microcontrollers and the equipment adopting 32-bit microcontrollers, can realize advanced and complex functions on economical user terminal products, and completely meets the design requirement.
It is worth noting that: the antenna linear array, the filter, the frequency mixer, the amplifying module, the modulating module, the direction finding receiver, the processor, the digital signal processing module, the storage module, the positioning module, the display screen, the wireless communication module and the like in the scheme are all common circuits or objects in the prior art, the innovation of the scheme is not on a single circuit, but the direction and the distance of the microwave can be measured by using the plurality of modules and the circuits in a matched mode, so that the origin place of the microwave is determined, and the purpose of reducing the complexity of a direction finding system is achieved.
Claims (8)
1. A novel microwave direction finding system is characterized by comprising an antenna linear array, a filter, a mixer, an amplifying module, a modulating module, a direction finding receiver and a processor;
the antenna linear array is used for receiving radio signals and is connected with a filter, and the filter is used for filtering other wave bands except microwaves; the filter is connected with the mixer, and the mixer is used for changing the input microwave into a fixed intermediate frequency; the mixer is connected with the amplifying module, and the amplifying module is used for amplifying the fixed intermediate frequency; the amplifying module is connected with the modulating module, and the modulating module is used for converting the amplified intermediate-frequency signal into a digital signal; the modulation module is connected with the direction-finding receiver; the direction-finding receiver is connected with the processor.
2. The novel microwave direction finding system according to claim 1, further comprising a positioning module, an image signal processing module, and a display screen; the positioning module is connected with the processor, the image signal processing module is connected with the processor, and the display screen is connected with the image signal processing module.
3. The microwave direction finding system of claim 2, wherein the processor is further connected to a storage module, and the storage module stores a map.
4. The novel microwave direction finding system of claim 2, wherein the image signal processing module is connected with the display screen through a wireless communication module.
5. The novel microwave direction finding system of claim 2, wherein the positioning module adopts a Beidou positioning system.
6. The microwave direction finding system of claim 1, wherein the processor is further connected with a power module, and the power module is used for supplying power to the filter, the mixer, the amplifying module, the modulating module, the direction finding receiver and the processor.
7. The microwave direction finding system of claim 1 wherein the direction finding receiver is an all digital direction finding receiver.
8. A novel microwave direction finding system as claimed in claim 1 wherein the processor employs STM32F407 processing chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120732954.7U CN218524868U (en) | 2021-04-08 | 2021-04-08 | Novel microwave direction finding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120732954.7U CN218524868U (en) | 2021-04-08 | 2021-04-08 | Novel microwave direction finding system |
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| Publication Number | Publication Date |
|---|---|
| CN218524868U true CN218524868U (en) | 2023-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120732954.7U Active CN218524868U (en) | 2021-04-08 | 2021-04-08 | Novel microwave direction finding system |
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| CN (1) | CN218524868U (en) |
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2021
- 2021-04-08 CN CN202120732954.7U patent/CN218524868U/en active Active
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