CN114448510A - Optical network transmission system applied to radar calibration and radar - Google Patents
Optical network transmission system applied to radar calibration and radar Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses an optical network transmission system and a radar applied to radar calibration, comprising: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power division assemblies, the optical power division assemblies are connected with the light emission combination through optical cables, and the optical power division assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal. The radar signal is transmitted through the optical fiber, and the system has the two advantages due to low transmission loss and strong anti-interference capability of the optical fiber. Moreover, the optical wavelength division multiplexing technology is adopted, a large number of interfaces can be integrated into one optical fiber interface, the weight of the original optical fiber is light, and the optical wavelength division multiplexing technology has the advantages of simple equipment quantity, volume saving, weight reduction, cost saving and good practical value.
Description
Technical Field
The invention relates to the technical field of radar equipment, in particular to an optical network transmission system applied to radar calibration and a radar.
Background
Radar is a detection system that uses radio waves to determine the range, angle or velocity of an object. It can be used to detect aircraft, ships, spacecraft, guided missiles, automobiles, weather formations, terrain. The radar system includes a transmitter, a transceiver antenna, a receiver, and a processor to determine object properties.
With the acceleration of the modernization process, the amount of information to be transmitted by the radar is greatly increased, and the variety of signals is increased, which puts higher requirements on the signal transmission quality. This presents challenges to the power requirements of the radar in order to achieve reliable transmission over long distances. Traditional radar signals, no matter receive or transmit, generally adopt many coaxial cable connections, and this can lead to transmission system's transmission loss big, and the reliability is low to interference killing feature is also low, seriously influences radar communication system's communication quality. And the connection form of the coaxial cable is adopted, and the size, the weight and the cost of the module are increased due to the large number of ports.
Disclosure of Invention
The invention aims to overcome the technical defects, provides an optical network transmission system and a radar applied to radar calibration, and solves the technical problems that the transmission system in the prior art has large transmission loss, low reliability and low anti-interference capability, and the communication quality of a radar communication system is seriously influenced.
In order to achieve the above technical object, in a first aspect, a technical solution of the present invention provides an optical network transmission system applied to radar calibration, including:
a light emitting combination for emitting a light signal;
the array surface comprises a plurality of optical power division components, the optical power division components are connected with the light emission combination through optical cables, and the optical power division components are used for dividing the optical signals into multiple paths of optical signals and sending the optical signals to the TR components;
and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable, and is used for performing photoelectric conversion on the multiple paths of optical signals to obtain a system clock signal and a calibration signal.
Compared with the prior art, the optical network transmission system applied to radar calibration provided by the invention has the beneficial effects that:
the optical network transmission system applied to radar calibration comprises: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power division components, the optical power division components are connected with the light emission combination through optical cables, and the optical power division components are used for dividing the optical signals into multiple paths of optical signals and sending the optical signals to the TR components; and the optical transceiver module is arranged in the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on the multi-path optical signals to obtain a system clock signal and a calibration signal.
The optical network transmission system applied to radar calibration provided by the embodiment transmits radar signals through the optical fiber, and the system has the two advantages because the optical fiber has low transmission loss and strong anti-interference capability. Moreover, the optical wavelength division multiplexing technology is adopted, a large number of interfaces can be integrated into one optical fiber interface, the weight of the original optical fiber is light, and the optical wavelength division multiplexing technology has the advantages of simple equipment quantity, volume saving, weight reduction, cost saving and good practical value.
According to some embodiments of the invention, the light emitting assembly comprises:
the optical transmission module is used for sending and receiving a test signal and a clock signal;
the optical amplifier is connected with the light emitting module through an optical cable and is used for carrying out optical amplification processing on the receiving test signal and the clock signal;
the optical wavelength division multiplexer is connected with the optical amplifier through an optical cable;
and the one-to-many optical power divider is connected with the optical wavelength division multiplexer through an optical cable, and the received test signal and the clock signal are processed by the optical wavelength division multiplexer and the one-to-many optical power divider to obtain a multi-path optical wavelength division multiplexing signal.
According to some embodiments of the present invention, the one-to-many optical power splitter is an one-to-eight optical power splitter, and the received test signal and the clock signal are processed by the optical wavelength division multiplexer and the one-to-eight optical power splitter to obtain eight paths of the optical wavelength division multiplexing signals.
According to some embodiments of the invention, the light emitting assembly further comprises:
and the photoelectric detector is connected with the optical wavelength division multiplexer through an optical cable, and the emission test signal sent by the array surface is processed by the one-division multi-optical power divider and the optical wavelength division multiplexer and then is emitted outwards through the photoelectric detector.
According to some embodiments of the present invention, the optical amplifier is connected to the one-to-many optical power splitter through an optical cable, and the synchronous control signal is subjected to optical amplification processing by the optical amplifier, and then subjected to equal division processing by the one-to-many optical power splitter to obtain a synchronous control optical fiber digital signal, and the synchronous control optical fiber digital signal is sent to the wavefront.
According to some embodiments of the present invention, the optical power dividing component is a twelve-time optical power dividing component, and the twelve-time optical power dividing component is configured to process the transmission test signal, the reception test signal, the clock signal, and the synchronization control signal and then send the processed signals to the TR component.
According to some embodiments of the present invention, the optical power dividing component receives the digital sampling signal from the TR component, and transmits the digital sampling signal to the optical transceiver module after the digital sampling signal is integrated and transferred by the optical power dividing component.
According to some embodiments of the invention, the optical transceiver module comprises:
the optical demultiplexer is used for receiving the multi-path optical signals and converting the multi-path optical signals into receiving test signals, clock signals and transmitting test signals;
the optical transmission module is connected with the optical demultiplexer through an optical cable, and the transmission test signal is sent out through the optical transmission module;
and the optical detector is connected with the optical demultiplexer through an optical cable, and the received test signal and the clock signal are transmitted by the optical detector.
According to some embodiments of the invention, the wavelength of the received test signal is 1545.32nm, the wavelength of the clock signal is 1551.72nm, and the wavelength of the emitted test signal is 1556.55 nm.
In a second aspect, an embodiment of the present invention provides a radar including the optical network transmission system applied to radar calibration according to any one of the first aspects.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which the abstract is to be fully consistent with one of the figures of the specification:
fig. 1 is a block diagram of an optical network transmission system applied to radar calibration according to an embodiment of the present invention;
fig. 2 is a block diagram of an optical transmission combination of an optical network transmission system applied to radar calibration according to another embodiment of the present invention;
fig. 3 is a structural diagram of an optical transceiver module of an optical network transmission system applied to radar calibration according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that although functional block divisions are provided in the system drawings and logical orders are shown in the flowcharts, in some cases, the steps shown and described may be performed in different orders than the block divisions in the systems or in the flowcharts. The terms first, second and the like in the description and in the claims, and the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The invention provides an optical network transmission system applied to radar calibration, wherein radar signals are transmitted through optical fibers, and the system has the advantages of low transmission loss and strong anti-interference capability. Moreover, the optical wavelength division multiplexing technology is adopted, a large number of interfaces can be integrated into one optical fiber interface, the weight of the original optical fiber is light, and the optical wavelength division multiplexing technology has the advantages of simple equipment quantity, volume saving, weight reduction, cost saving and good practical value.
The embodiments of the present invention will be further explained with reference to the drawings.
Referring to fig. 1, fig. 1 is a structural diagram of an optical network transmission system applied to radar calibration according to an embodiment of the present invention.
In one embodiment, an optical network transmission system applied to radar calibration comprises: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power distribution assemblies, the optical power distribution assemblies are connected with the light emission combination through optical cables, and the optical power distribution assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal. The optical network transmission system applied to radar calibration transmits radar signals through the optical fiber, and the system has the two advantages due to low optical fiber transmission loss and strong anti-interference capability. Moreover, the optical wavelength division multiplexing technology is adopted, a large number of interfaces can be integrated into one optical fiber interface, the weight of the original optical fiber is light, and the optical wavelength division multiplexing technology has the advantages of simple equipment quantity, volume saving, weight reduction, cost saving and good practical value.
Referring to fig. 2, fig. 2 is a block diagram of an optical transmission combination of an optical network transmission system applied to radar calibration according to another embodiment of the present invention.
In one embodiment, an optical network transmission system applied to radar calibration comprises: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power division assemblies, the optical power division assemblies are connected with the light emission combination through optical cables, and the optical power division assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal. The optical network transmission system applied to radar calibration transmits radar signals through the optical fiber, and the system has the two advantages due to low optical fiber transmission loss and strong anti-interference capability. The light emission combination includes: the optical transmission module is used for sending and receiving a test signal and a clock signal; the optical amplifier is connected with the light emitting module through an optical cable and is used for carrying out optical amplification processing on the received test signal and the clock signal; the optical wavelength division multiplexer is connected with the optical amplifier through an optical cable; and the one-to-many optical power divider is connected with the optical wavelength division multiplexer through an optical cable, and receives the test signal and the clock signal and processes the test signal and the clock signal through the optical wavelength division multiplexer and the one-to-many optical power divider to obtain a multi-path optical wavelength division multiplexing signal.
In one embodiment, an optical network transmission system applied to radar calibration comprises: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power division assemblies, the optical power division assemblies are connected with the light emission combination through optical cables, and the optical power division assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal. The light emission combination includes: the optical transmission module is used for sending and receiving a test signal and a clock signal; the optical amplifier is connected with the light emitting module through an optical cable and is used for carrying out optical amplification processing on the received test signal and the clock signal; the optical wavelength division multiplexer is connected with the optical amplifier through an optical cable; and the one-to-many optical power divider is connected with the optical wavelength division multiplexer through an optical cable, and receives the test signal and the clock signal and processes the test signal and the clock signal through the optical wavelength division multiplexer and the one-to-many optical power divider to obtain a multi-path optical wavelength division multiplexing signal. The one-to-many optical power divider is an one-to-eight optical power divider, and the received test signal and the clock signal are processed by the optical wavelength division multiplexer and the one-to-eight optical power divider to obtain eight paths of optical wavelength division multiplexing signals. The optical network transmission system applied to radar calibration transmits radar signals through the optical fiber, and due to the fact that optical fiber transmission loss is low, interference resistance is high, a large number of interfaces can be integrated into one optical fiber interface by adopting the optical wavelength division multiplexing technology, the weight of the original optical fiber is light, and in addition, the technology enables the equipment amount to be simple, the size is saved, the weight is compressed, and the cost is saved.
In one embodiment, an optical network transmission system applied to radar calibration comprises: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power division assemblies, the optical power division assemblies are connected with the light emission combination through optical cables, and the optical power division assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal. The light emission combination includes: the optical transmission module is used for sending and receiving a test signal and a clock signal; the optical amplifier is connected with the light emitting module through an optical cable and is used for carrying out optical amplification processing on the received test signal and the clock signal; the optical wavelength division multiplexer is connected with the optical amplifier through an optical cable; and the one-to-many optical power divider is connected with the optical wavelength division multiplexer through an optical cable, and receives the test signal and the clock signal and processes the test signal and the clock signal through the optical wavelength division multiplexer and the one-to-many optical power divider to obtain a multi-path optical wavelength division multiplexing signal. The light emission combination further includes: and the photoelectric detector is connected with the optical wavelength division multiplexer through an optical cable, and the emission test signal sent by the array surface is processed by the one-to-many optical power divider and the optical wavelength division multiplexer and then is emitted outwards through the photoelectric detector.
In one embodiment, an optical network transmission system applied to radar calibration comprises: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power division assemblies, the optical power division assemblies are connected with the light emission combination through optical cables, and the optical power division assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal. The light emission combination includes: the optical transmission module is used for sending and receiving a test signal and a clock signal; the optical amplifier is connected with the light emitting module through an optical cable and is used for carrying out optical amplification processing on the received test signal and the clock signal; the optical wavelength division multiplexer is connected with the optical amplifier through an optical cable; and the one-to-many optical power divider is connected with the optical wavelength division multiplexer through an optical cable, and receives the test signal and the clock signal and processes the test signal and the clock signal through the optical wavelength division multiplexer and the one-to-many optical power divider to obtain a multi-path optical wavelength division multiplexing signal. The light emission combination further includes: and the photoelectric detector is connected with the optical wavelength division multiplexer through an optical cable, and the emission test signal sent by the array surface is processed by the one-to-many optical power divider and the optical wavelength division multiplexer and then is emitted outwards through the photoelectric detector. The optical amplifier is connected with the one-division multi-optical power divider through an optical cable, and the synchronous control signal is subjected to optical amplification processing through the optical amplifier, is subjected to equal division processing through the one-division multi-optical power divider to obtain a synchronous control optical fiber digital signal and is sent to the array surface.
In one embodiment, an optical network transmission system applied to radar calibration comprises: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power division assemblies, the optical power division assemblies are connected with the light emission combination through optical cables, and the optical power division assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal.
The light emission combination includes: the optical transmission module is used for sending and receiving a test signal and a clock signal; the optical amplifier is connected with the light emitting module through an optical cable and is used for carrying out optical amplification processing on the received test signal and the clock signal; the optical wavelength division multiplexer is connected with the optical amplifier through an optical cable; and the one-to-many optical power divider is connected with the optical wavelength division multiplexer through an optical cable, and receives the test signal and the clock signal and processes the test signal and the clock signal through the optical wavelength division multiplexer and the one-to-many optical power divider to obtain a multi-path optical wavelength division multiplexing signal. The light emission combination further includes: and the photoelectric detector is connected with the optical wavelength division multiplexer through an optical cable, and the emission test signal sent by the array surface is processed by the one-to-many optical power divider and the optical wavelength division multiplexer and then is emitted outwards through the photoelectric detector. The optical amplifier is connected with the one-division multi-optical power divider through an optical cable, and the synchronous control signal is subjected to optical amplification processing through the optical amplifier, is subjected to equal division processing through the one-division multi-optical power divider to obtain a synchronous control optical fiber digital signal and is sent to the array surface. The optical power division component is a one-to-twelve optical power division component, and the one-to-twelve optical power division component is used for processing the emission test signal, the reception test signal, the clock signal and the synchronous control signal and then sending the processed signals to the TR component.
In one embodiment, an optical network transmission system applied to radar calibration comprises: a light emitting assembly for emitting a light signal; the array surface comprises a plurality of optical power division assemblies, the optical power division assemblies are connected with the light emission combination through optical cables, and the optical power division assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal. The optical power division component receives the digital sampling signal from the TR component, and the digital sampling signal is transmitted to the optical transceiver module after being integrated and switched by the optical power division component.
Referring to fig. 3, fig. 3 is a block diagram of an optical transceiver module of an optical network transmission system applied to radar calibration according to another embodiment of the present invention.
In one embodiment, an optical network transmission system applied to radar calibration comprises: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power division assemblies, the optical power division assemblies are connected with the light emission combination through optical cables, and the optical power division assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal. The optical transceiver module includes: the optical demultiplexer is used for receiving the multi-channel optical signals and converting the multi-channel optical signals into receiving test signals, clock signals and transmitting test signals; the optical transmission module is connected with the optical demultiplexer through an optical cable, and transmits a test signal through the optical transmission module; and the optical detector is connected with the optical demultiplexer through an optical cable, and receives the test signal and the clock signal and sends the test signal and the clock signal through the optical detector.
In one embodiment, an optical network transmission system applied to radar calibration comprises: a light emitting combination for emitting a light signal; the array surface comprises a plurality of optical power division assemblies, the optical power division assemblies are connected with the light emission combination through optical cables, and the optical power division assemblies are used for dividing optical signals into multiple paths of optical signals and sending the optical signals to the TR assemblies; and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable and is used for performing photoelectric conversion on a plurality of paths of optical signals to obtain a system clock signal and a calibration signal. The optical transceiver module includes: the optical demultiplexer is used for receiving the multi-channel optical signals and converting the multi-channel optical signals into receiving test signals, clock signals and transmitting test signals; the optical transmission module is connected with the optical demultiplexer through an optical cable, and transmits a test signal through the optical transmission module; and the optical detector is connected with the optical demultiplexer through an optical cable, and receives the test signal and the clock signal and sends the test signal and the clock signal through the optical detector. The wavelength of the received test signal is 1545.32nm, the wavelength of the clock signal is 1551.72nm, and the wavelength of the transmitted test signal is 1556.55 nm.
The invention also provides a radar which comprises the optical network transmission system applied to radar calibration.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An optical network transmission system applied to radar calibration, comprising:
a light emitting combination for emitting a light signal;
the array surface comprises a plurality of optical power division components, the optical power division components are connected with the light emission combination through optical cables, and the optical power division components are used for dividing the optical signals into multiple paths of optical signals and sending the optical signals to the TR components;
and the optical transceiver module is arranged on the TR component, is connected with the optical power distribution component through an optical cable, and is used for performing photoelectric conversion on the multiple paths of optical signals to obtain a system clock signal and a calibration signal.
2. Optical network transmission system applied to radar calibration according to claim 1, characterized in that said light emission combination comprises:
the optical transmission module is used for sending and receiving a test signal and a clock signal;
the optical amplifier is connected with the light emitting module through an optical cable and is used for carrying out optical amplification processing on the receiving test signal and the clock signal;
the optical wavelength division multiplexer is connected with the optical amplifier through an optical cable;
and the one-to-many optical power divider is connected with the optical wavelength division multiplexer through an optical cable, and the received test signal and the clock signal are processed by the optical wavelength division multiplexer and the one-to-many optical power divider to obtain a multi-path optical wavelength division multiplexing signal.
3. The optical network transmission system applied to radar calibration as claimed in claim 2, wherein the one-to-many optical power splitter is an one-to-eight optical power splitter, and the received test signal and the clock signal are processed by the optical wavelength division multiplexer and the one-to-eight optical power splitter to obtain eight paths of the optical wavelength division multiplexing signals.
4. The optical network transmission system applied to radar calibration as recited in claim 2, wherein the optical transmission combination further comprises:
and the photoelectric detector is connected with the optical wavelength division multiplexer through an optical cable, and the emission test signal sent by the array surface is processed by the one-division multi-optical power divider and the optical wavelength division multiplexer and then is emitted outwards through the photoelectric detector.
5. The optical network transmission system applied to radar calibration as claimed in claim 4, wherein the optical amplifier is connected to the one-to-many optical power splitter through an optical cable, and the synchronous control signal is subjected to optical amplification processing by the optical amplifier, and then subjected to equal division processing by the one-to-many optical power splitter to obtain a synchronous control optical fiber digital signal, and sent to the wavefront.
6. The optical network transmission system applied to radar calibration as claimed in claim 5, wherein the optical power division component is a one-twelve optical power division component, and the one-twelve optical power division component is configured to process the transmission test signal, the reception test signal, the clock signal, and the synchronization control signal and then send the processed signals to the TR component.
7. The optical network transmission system applied to radar calibration as claimed in claim 1, wherein the optical power splitting module receives the digital sampling signal from the TR module, and transmits the digital sampling signal to the optical transceiver module after being integrated and switched by the optical power splitting module.
8. The optical network transmission system applied to radar calibration according to claim 1, wherein the optical transceiver module comprises:
the optical demultiplexer is used for receiving the multi-path optical signals and converting the multi-path optical signals into receiving test signals, clock signals and transmitting test signals;
the optical transmission module is connected with the optical demultiplexer through an optical cable, and the transmission test signal is sent out through the optical transmission module;
and the optical detector is connected with the optical demultiplexer through an optical cable, and the received test signal and the clock signal are transmitted by the optical detector.
9. The optical network transmission system applied to radar calibration according to claim 8, wherein the wavelength of the received test signal is 1545.32nm, the wavelength of the clock signal is 1551.72nm, and the wavelength of the transmitted test signal is 1556.55 nm.
10. A radar comprising an optical network transmission system for radar calibration according to any one of claims 1 to 9.
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| CN202111678123.7A CN114448510B (en) | 2021-12-31 | 2021-12-31 | Optical network transmission system and radar applied to radar standard calibration |
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| CN202111678123.7A CN114448510B (en) | 2021-12-31 | 2021-12-31 | Optical network transmission system and radar applied to radar standard calibration |
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