CN117879636A - System of KaKu full-band dual-receiving dual-transmitting phased array antenna and operation method thereof - Google Patents
System of KaKu full-band dual-receiving dual-transmitting phased array antenna and operation method thereof Download PDFInfo
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Abstract
The invention discloses a system of a KaKu full-frequency-band dual-receiving dual-transmitting phased array antenna and an operation method thereof, wherein the system comprises a Ka frequency-band dual-beam phased array antenna for receiving/transmitting Ka frequency-band electromagnetic waves, a Ku frequency-band dual-beam phased array antenna for receiving/transmitting Ku frequency-band electromagnetic waves, and a dual-frequency dual-beam phased array integrated management module for scheduling peripheral resources and controlling the working mode of dual-frequency dual-beam; the operation method comprises the steps of S1, selecting a working mode, S2, starting communication; the invention aims at the problems that when the satellites in the inclined orbit and the low orbit are used, the satellite in the orbit changes the ground coverage area in real time, and the communication interruption and even the service interruption of the traditional single-beam ground communication terminal can be avoided through the arrangement of KaKu full-frequency-band dual-reception dual-transmission.
Description
Technical Field
The invention relates to the technical field of satellite communication, in particular to a KaKu full-band dual-receiving dual-transmitting phased array antenna system and an operation method thereof.
Background
The antenna array plane of a phased array radar is also composed of a number of radiating elements and receiving elements (called array elements), the number of elements being dependent on the functioning of the radar and can be from hundreds to tens of thousands. The units are regularly arranged on a plane to form an array antenna. Different oscillators can be fed with currents of different phases through phase shifters, so that beams with different directivities are radiated in space, and the more the number of units of the antenna is, the more the possible azimuth of the beams in space is. The basis for the operation of such radars is a phased array antenna, known as a "phased array". However, phased array radar equipment is complex and expensive in cost, the beam scanning range is limited, the maximum scanning angle is 90-120 degrees, and when the omnidirectional monitoring is required, 3-4 antenna array surfaces are required to be configured.
The current satellite communication phased array antenna can meet the actual use requirement when aiming at high-orbit communication satellites, but when aiming at inclined orbit satellites and low-orbit satellites, because the satellite-to-ground coverage areas of the orbit are changed in real time and have a communication time period, if the coverage area of the current communication satellite is divided by the area where the communication terminal is located, the communication terminal is required to search for new communication satellites again and establish communication, and the traditional single-beam ground communication terminal can have communication interruption even cause service interruption and other problems.
Meanwhile, if the single-band is used for satellite communication, the ground communication terminal cannot realize satellite communication under the condition that the current communication band is interfered.
Disclosure of Invention
Therefore, the invention provides a system of a KaKu full-band dual-receiving dual-transmitting phased array antenna and an operation method thereof.
The technical scheme of the invention is as follows: the system comprises a Ka frequency band dual-beam phased array antenna for receiving/transmitting Ka frequency band electromagnetic waves, a Ku frequency band dual-beam phased array antenna for receiving/transmitting Ku frequency band electromagnetic waves, a dual-frequency dual-beam phased array integrated management module for scheduling peripheral resources and controlling the working mode of dual-frequency dual-beam, a power supply module for supplying power to the system, a user terminal and a modem for connecting the dual-frequency dual-beam phased array integrated management module with the user terminal in a communication mode;
the Ka frequency band dual-beam phased array antenna and the Ku frequency band dual-beam phased array antenna are both in communication connection with the dual-frequency dual-beam phased array integrated management module;
the Ka-band dual-beam phased array antenna comprises: a Ka frequency band dual-beam phased array receiving unit and a Ka frequency band dual-beam phased array transmitting unit; the Ku frequency band dual-beam phased array antenna comprises a Ku frequency band dual-beam phased array receiving unit and a Ku frequency band dual-beam phased array transmitting unit.
Description: the KaKu frequency band dual-beam phased array antenna can support a higher frequency band, provide a larger bandwidth and data transmission rate, and can simultaneously communicate with a plurality of users or ground stations, so that network capacity and connectivity are improved, and meanwhile, the KaKu frequency band dual-beam phased array antenna has target tracking and dynamic beam steering; the rapid target tracking and dynamic beam steering are realized, and the transmission efficiency and the communication quality of the system are improved; different beams can be distributed to different users or ground stations, so that spatial multiplexing is realized; the frequency spectrum utilization rate is effectively improved, and the anti-interference capability of the system is enhanced; through the design of the KaKu full-band, the problems that when the satellites are in inclined orbits and low orbits, the satellites in the orbits change the ground coverage area in real time, a communication terminal is required to search new communication satellites again and establish communication are solved, and the problems that the traditional single-beam ground communication terminal is interrupted in communication and even causes service interruption and the like are avoided.
Further, the operation modes include a single-band operation mode and a dual-band operation mode, and the single-band operation mode and the dual-band operation mode are respectively provided with a single-beam mode and a dual-beam mode.
Description: by selecting the working mode and establishing the communication link, the attitude measurement system can be effectively corrected, and the accuracy of the signal data is improved.
Further, the single-band dual-beam satellite communication phased array receiving system comprises a receiving branching subunit, a receiving combining subunit and N antenna receiving subunits,
the receiving and branching subunit comprises N low noise amplifiers, band-pass filters and power splitters which are in one-to-one correspondence with the antenna receiving subunits and are sequentially connected,
each power divider outputs a beam 1 signal and a beam 2 signal, and is connected with a beam 1 phase shifter module for adjusting the beam 1 signal and a beam 2 phase shifter module for adjusting the beam 2 signal;
the reception complex sub-unit includes: a beam 1 power combiner for connection with the N beam 1 phase shifter modules and a beam 2 power combiner for connection with the N beam 2 phase shifter modules,
the beam 1 power combiner and the beam 2 power combiner are respectively and sequentially connected with a small signal amplifier and a down converter, and then respectively output an intermediate frequency signal corresponding to the beam 1 and an intermediate frequency signal corresponding to the beam 2;
the low noise amplifier is used for amplifying small signals received by the antenna;
the band pass filter is used for reducing the power of the out-of-band signal.
Description: through the design of the basic framework, the received signals can be processed, and the system regulation and control are facilitated.
Further, a phased array transmitting system for single-band double-beam satellite communication; comprises N antenna radiating subunits, 1 radiating combination subunit and N radiating branching subunits,
the radiation sub-unit comprises an intermediate frequency signal corresponding to an input beam 1 and an intermediate frequency signal corresponding to a beam 2; the intermediate frequency signal corresponding to the beam 1 and the intermediate frequency signal corresponding to the beam 2 are respectively connected with an up-converter, a band-pass filter, a small signal amplifier and a power splitter in turn,
the power splitter corresponding to the beam 1 outputs N beam 1 signals, the power splitter corresponding to the beam 2 outputs N beam 2 signals corresponding to the beam 1 signals,
each of said radiating sub-units comprising a beam 1 phase shifter module for receiving an adjusted beam 1 signal and a beam 2 phase shifter module for receiving an adjusted beam 2 signal;
the beam 1 phase shifter module and the beam 2 phase shifter module in each radiation sub-unit are sequentially connected with a channel combiner, a power amplifier and an antenna radiation sub-unit.
Description: through the design of the basic framework, the transmitted signals can be processed, and the system regulation and control are convenient.
Further, the dual-frequency dual-beam phased array integrated management module comprises: the system comprises a beam control module for controlling the working mode of double-frequency double-beam, a double-frequency double-beam comprehensive data processing module for scheduling peripheral resources, a four-way transmitting unit for transmitting signals and a four-way receiving unit for receiving signals;
the peripheral resources comprise carrier attitude measurement equipment, a navigation positioning system, a four-channel beacon receiver, a system thermal management system, a system health management system, a power management system and a debugging interface which are respectively in communication connection with the dual-frequency dual-beam comprehensive data processing module;
the beam control module is respectively connected with the four-way transmitting unit and the four-way receiving unit;
the four-way transmitting unit and the four-way receiving unit are respectively in communication connection with the Ka frequency band/Ku frequency band dual-beam phased array receiving unit and the Ka frequency band/Ku frequency band dual-beam phased array transmitting unit, and the four-way receiving unit is connected with the four-way beacon receiver;
the beam control module, the dual-frequency dual-beam comprehensive data processing module, the modem and the user terminal are connected in sequence; the modem is respectively connected with the four-way transmitting unit and the four-way receiving unit;
the system also comprises a gesture measurement system, wherein the gesture measurement system comprises an inertial measurement unit for measuring the gesture information of the antenna, a transmission system for adjusting the gesture of the antenna and an antenna control unit for controlling the transmission system.
Description: the operation method of the dual-frequency dual-beam phased array integrated management module can be realized, and the real-time tracking and communication of dual-frequency dual satellites are completed.
The invention also provides an operation method of the KaKu full-band dual-receiving dual-transmitting phased array antenna system, which comprises the following steps:
s1, selecting a working mode:
firstly, according to the working frequency band of a satellite, the working frequency band comprises a single frequency band and a double frequency band, a single frequency band working mode/a double frequency band working mode is correspondingly selected, and then a single beam mode/a double beam mode is selected according to network communication where a user terminal is located;
s2, starting communication:
when a single-band working mode is selected, a communication link is established through a single-beam mode/a dual-beam mode, and then communication is started;
when a dual-band working mode is selected, communication links of a Ku frequency band beam and a Ka frequency band beam are respectively established through a single-beam mode/a dual-beam mode, and Ku frequency band pointing data and Ka frequency band pointing data are obtained; simultaneously correcting the attitude measurement system by using the Ku frequency band pointing data and the Ka frequency band pointing data; then, the Ku frequency band beam and the Ka frequency band beam are utilized to start communication;
the correction method comprises the following steps: in an initial state, firstly correcting an attitude measurement system by using Ku frequency band pointing data, and then controlling the Ka frequency band beam pointing by using the corrected attitude measurement data; when the Ka frequency band wave beam is not stably directed to the corresponding satellite in the running state, the Ku frequency band pointing data is used for correcting the attitude measurement system; when the beam can stably point to the satellite in the Ka frequency band, the Ka frequency band pointing data is used for correcting the attitude measurement system.
Description: by establishing the method, the attitude measurement system can be effectively corrected by selecting the working mode and establishing the communication link, so that the accuracy of signal data is improved; because the setting difficulty of double wave beams is high, the satellite is difficult to realize all setting, and the difference between single wave beam and double wave beam is small through the double frequency band effective correction gesture measuring system under the low orbit satellite, the setting can distribute different wave beams to different users or ground stations to realize space multiplexing; the utilization rate of the frequency spectrum is effectively improved, and the anti-interference capability of the system is enhanced.
Further, the working method of the single beam mode comprises the following steps: under the determined frequency band, selecting one beam to work, enabling the other beam to be in a silent state, pointing the selected beam to a corresponding satellite, correcting the selected beam by a correction attitude measurement system, establishing a communication link, and starting communication;
the working method of the dual-beam mode comprises the following steps: under the determined frequency band, respectively pointing the two beams to the corresponding satellites and establishing a communication link, obtaining pointing data of the two beam building links by the system, correcting the attitude measurement system, and then starting communication by using the two beams;
the pointing data includes the azimuth angle and elevation angle of the beam.
Description: the above arrangement enables communication by establishing a communication link through the beam.
Further, the method for correcting the selected beam direction by the attitude measurement system comprises the following steps: firstly, measuring antenna attitude information through an inertia measurement unit, driving a transmission system by an antenna control unit according to the antenna attitude measurement information, changing the attitude of an antenna, and correcting the selected beam direction.
Description: the above arrangement may utilize an attitude measurement system to correct the beam pointing.
Further, in step S2, the method for selecting one of the beams is: and comparing the signal to noise ratios of the received signals, and selecting a beam with a larger signal to noise ratio.
Description: the larger the signal-to-noise ratio is, the better the receiving performance is proved; the signal-to-noise ratio is the ratio of the signal power to the noise power and is used for measuring the quality of the signal; the larger the signal-to-noise ratio, the stronger the signal, the smaller the noise, and the better the receiving performance.
The beneficial effects of the invention are as follows:
aiming at the real-time change of the earth coverage area of the orbital satellite when the orbit satellite is inclined and the orbit satellite is low, if the coverage area of the current communication satellite is marked across the area where the communication terminal is located, the communication terminal is required to search for a new communication satellite again and establish communication, and the problems that the communication is interrupted, even the service is interrupted and the like can be avoided when the traditional single-beam earth communication terminal is arranged through the KaKu full-band dual-reception dual-transmission; by means of the ground phased array antenna framework, real-time tracking and communication of double-frequency-band double satellites can be achieved, and satellite communication interruption caused by frequency switching and satellite orbit variation is avoided.
Drawings
FIG. 1 is a schematic diagram of the architecture of a dual-frequency dual-beam satellite communication phased array system of the present invention;
FIG. 2 is a schematic diagram of a phased array receiver system for single-band dual-beam satellite communications in accordance with the present invention;
FIG. 3 is a schematic diagram of the architecture of a phased array transmission system for single-band dual-beam satellite communications in accordance with the present invention;
FIG. 4 is a schematic diagram of a dual-frequency dual-beam integrated management module of the present invention;
FIG. 5 is a schematic diagram of a single band dual beam communication link setup of the present invention;
fig. 6 is a schematic diagram of the dual band dual beam communication link setup of the present invention.
Detailed Description
The invention will be described in further detail with reference to the following embodiments to better embody the advantages of the invention.
Example 1: as shown in fig. 1, a KaKu full-band dual-receive dual-transmit phased array antenna system comprises a Ka band dual-beam phased array antenna for receiving/transmitting Ka band electromagnetic waves, a Ku band dual-beam phased array antenna for receiving/transmitting Ku band electromagnetic waves, a dual-frequency dual-beam phased array integrated management module for scheduling peripheral resources and controlling the working mode of dual-frequency dual-beam, a power supply module for supplying power to the system, a user terminal and a modem for connecting the dual-frequency dual-beam phased array integrated management module with the user terminal in a communication manner;
the Ka frequency band dual-beam phased array antenna and the Ku frequency band dual-beam phased array antenna are both in communication connection with the dual-frequency dual-beam phased array integrated management module;
the Ka-band dual-beam phased array antenna comprises: a Ka frequency band dual-beam phased array receiving unit and a Ka frequency band dual-beam phased array transmitting unit; the Ku frequency band dual-beam phased array antenna comprises a Ku frequency band dual-beam phased array receiving unit and a Ku frequency band dual-beam phased array transmitting unit;
the working modes comprise a single-band working mode and a double-band working mode, and the single-band working mode and the double-band working mode are respectively provided with a single-beam mode and a double-beam mode;
as shown in fig. 2, the Ka-band dual-beam phased array receiving unit and the Ku-band dual-beam phased array receiving unit each include a receiving branching subunit, a receiving combining subunit and N antenna receiving subunits,
the receiving and branching subunit comprises N low noise amplifiers, band-pass filters and power splitters which are in one-to-one correspondence with the antenna receiving subunits and are sequentially connected,
each power divider outputs a beam 1 signal and a beam 2 signal, and is connected with a beam 1 phase shifter module for adjusting the beam 1 signal and a beam 2 phase shifter module for adjusting the beam 2 signal;
the reception complex sub-unit includes: a beam 1 power combiner for connecting the N beam 1 phase shifter modules and a beam 2 power combiner for connecting the N beam 2 phase shifter modules,
the beam 1 power combiner and the beam 2 power combiner are respectively and sequentially connected with a small signal amplifier and a down converter, and then respectively output an intermediate frequency signal corresponding to the beam 1 and an intermediate frequency signal corresponding to the beam 2;
the low noise amplifier is used for amplifying small signals received by the antenna; the band-pass filter is used for reducing the power of the out-of-band signal; the low noise amplifier, the band-pass filter, the power divider and other technologies all adopt the prior art;
as shown in fig. 3, the Ka-band dual-beam phased array transmitting unit and the Ku-band dual-beam phased array transmitting unit each include N antenna radiating subunits, 1 radiating combining subunit and N radiating splitting subunits,
the radiation sub-unit inputs an intermediate frequency signal corresponding to the beam 1 and an intermediate frequency signal corresponding to the beam 2;
the radiation sub-unit comprises an up-converter, a band-pass filter, a small signal amplifier and a power divider which are respectively connected with an intermediate frequency signal corresponding to a beam 1 and an intermediate frequency signal corresponding to a beam 2 in sequence,
the power splitter corresponding to the beam 1 outputs N beam 1 signals, the power splitter corresponding to the beam 2 outputs N beam 2 signals corresponding to the beam 2 signals,
each of the radiating sub-units includes a beam 1 phase shifter module for receiving an adjusted beam 1 signal and a beam 2 phase shifter module for receiving an adjusted beam 2 signal;
the beam 1 phase shifter module and the beam 2 phase shifter module in each radiation sub-unit are connected with an antenna radiation sub-unit through a channel combiner and a power amplifier in sequence; the frequency converter, the band-pass filter, the small signal amplifier, the power divider and other technologies all adopt the prior art;
as shown in fig. 4, the dual-frequency dual-beam phased array integrated management module includes: the system comprises a beam control module for controlling the working mode of double-frequency double-beam, a double-frequency double-beam comprehensive data processing module for scheduling peripheral resources, a four-way transmitting unit for transmitting signals and a four-way receiving unit for receiving signals;
the peripheral resources comprise carrier attitude measurement equipment, a navigation positioning system, a four-channel beacon receiver, a system thermal management system, a system health management system, a power management system and a debugging interface which are respectively in communication connection with the dual-frequency dual-beam comprehensive data processing module;
the beam control module is respectively connected with the four-way transmitting unit and the four-way receiving unit;
the four-way transmitting unit and the four-way receiving unit are respectively in communication connection with the Ka frequency band/Ku frequency band dual-beam phased array receiving unit and the Ka frequency band/Ku frequency band dual-beam phased array transmitting unit, and the four-way receiving unit is connected with the four-way beacon receiver;
the beam control module, the dual-frequency dual-beam comprehensive data processing module, the modem and the user terminal are connected in sequence; the modem is respectively connected with the four-way transmitting unit and the four-way receiving unit;
the system also comprises a gesture measurement system, wherein the gesture measurement system comprises an inertia measurement unit for measuring the gesture information of the antenna, a transmission system for adjusting the gesture of the antenna and an antenna control unit for controlling the transmission system; the beam control module, the dual-frequency dual-beam comprehensive data processing module, the modem and other technologies all adopt the prior art;
example 2: the operation method for performing communication by using the KaKu full-band dual-receiving and dual-transmitting phased array antenna system of the embodiment 1 is as shown in fig. 5 and 6, and includes the following steps:
s1, selecting a working mode:
firstly, according to the working frequency band of a satellite, the working frequency band comprises a single frequency band and a double frequency band, a single frequency band working mode/a double frequency band working mode is correspondingly selected, and then a single beam mode/a double beam mode is selected according to network communication where a user terminal is located;
s2, starting communication:
when a single-band working mode is selected, a communication link is established through a single-beam mode/a dual-beam mode, and then communication is started;
when a dual-band working mode is selected, communication links of a Ku frequency band beam and a Ka frequency band beam are respectively established through a single-beam mode/a dual-beam mode, and Ku frequency band pointing data and Ka frequency band pointing data are obtained; simultaneously correcting the attitude measurement system by using the Ku frequency band pointing data and the Ka frequency band pointing data; then, the Ku frequency band beam and the Ka frequency band beam are utilized to start communication;
the correction method comprises the following steps: in an initial state, firstly correcting an attitude measurement system by using Ku frequency band pointing data, and then controlling the Ka frequency band beam pointing by using the corrected attitude measurement data; when the Ka frequency band wave beam is not stably directed to the corresponding satellite in the running state, the Ku frequency band pointing data is used for correcting the attitude measurement system; when the wave beam can stably point to the satellite in the Ka frequency band, correcting the attitude measurement system by adopting the Ka frequency band pointing data;
the working method of the single beam mode comprises the following steps: under the determined frequency band, selecting one beam to work, enabling the other beam to be in a silent state, pointing the selected beam to a corresponding satellite, correcting the selected beam by a correction attitude measurement system, establishing a communication link, and starting communication; the method for selecting one of the beams is as follows: comparing the signal to noise ratio of the received signals, and selecting a wave beam with a larger signal to noise ratio;
the working method of the dual-beam mode comprises the following steps: under the determined frequency band, respectively pointing the two beams to the corresponding satellites and establishing a communication link, obtaining pointing data of the two beam building links by the system, correcting the attitude measurement system, and then starting communication by using the two beams;
the pointing data comprises azimuth angle and elevation angle of the wave beam;
the method for correcting the selected beam pointing direction by the attitude measurement system comprises the following steps: firstly, measuring antenna attitude information through an inertia measurement unit, driving a transmission system by an antenna control unit according to the antenna attitude measurement information, changing the attitude of an antenna, and correcting the selected beam direction.
Claims (9)
1. The KaKu full-band dual-receiving and dual-transmitting phased array antenna system is characterized by comprising a Ka-band dual-beam phased array antenna for receiving/transmitting Ka-band electromagnetic waves, a Ku-band dual-beam phased array antenna for receiving/transmitting Ku-band electromagnetic waves, a dual-frequency dual-beam phased array integrated management module for scheduling peripheral resources and controlling the working mode of dual-frequency dual-beam, a power supply module for supplying power to the system, a user terminal and a modem for connecting the dual-frequency dual-beam phased array integrated management module with the user terminal in a communication mode;
the Ka frequency band dual-beam phased array antenna and the Ku frequency band dual-beam phased array antenna are both in communication connection with the dual-frequency dual-beam phased array integrated management module;
the Ka-band dual-beam phased array antenna comprises: a Ka frequency band dual-beam phased array receiving unit and a Ka frequency band dual-beam phased array transmitting unit; the Ku frequency band dual-beam phased array antenna comprises a Ku frequency band dual-beam phased array receiving unit and a Ku frequency band dual-beam phased array transmitting unit.
2. The KaKu full band dual-receive dual-transmit phased array antenna system of claim 1, wherein the operating modes comprise a single band operating mode and a dual band operating mode, both of which are provided with a single beam mode and a dual beam mode.
3. The KaKu full-band dual-receive dual-transmit phased array antenna system of claim 1, wherein the Ka-band dual-beam phased array receiving unit and the Ku-band dual-beam phased array receiving unit each comprise a receiving shunt subunit, a receiving synthesis subunit and N antenna receiving subunits,
the receiving and branching subunit comprises N low noise amplifiers, band-pass filters and power splitters which are in one-to-one correspondence with the antenna receiving subunits and are sequentially connected,
each power divider outputs a beam 1 signal and a beam 2 signal, and is connected with a beam 1 phase shifter module for adjusting the beam 1 signal and a beam 2 phase shifter module for adjusting the beam 2 signal;
the reception complex sub-unit includes: a beam 1 power combiner for connecting the N beam 1 phase shifter modules and a beam 2 power combiner for connecting the N beam 2 phase shifter modules,
the beam 1 power combiner and the beam 2 power combiner are respectively and sequentially connected with a small signal amplifier and a down converter, and then respectively output an intermediate frequency signal corresponding to the beam 1 and an intermediate frequency signal corresponding to the beam 2;
the low noise amplifier is used for amplifying small signals received by the antenna; the band pass filter is used for reducing the power of the out-of-band signal.
4. The KaKu full-band dual-receive dual-transmit phased array antenna system of claim 1, wherein the Ka-band dual-beam phased array transmitting unit and the Ku-band dual-beam phased array transmitting unit each comprise N antenna radiating subunits, 1 radiating combining subunit and N radiating splitting subunits,
the radiation sub-unit inputs an intermediate frequency signal corresponding to the beam 1 and an intermediate frequency signal corresponding to the beam 2;
the radiation sub-unit comprises an up-converter, a band-pass filter, a small signal amplifier and a power divider which are respectively connected with an intermediate frequency signal corresponding to a beam 1 and an intermediate frequency signal corresponding to a beam 2 in sequence,
the power splitter corresponding to the beam 1 outputs N beam 1 signals, the power splitter corresponding to the beam 2 outputs N beam 2 signals corresponding to the beam 2 signals,
each of the radiating sub-units includes a beam 1 phase shifter module for receiving an adjusted beam 1 signal and a beam 2 phase shifter module for receiving an adjusted beam 2 signal;
the beam 1 phase shifter module and the beam 2 phase shifter module in each radiation sub-unit are connected with the antenna radiation sub-unit through a channel combiner and a power amplifier in sequence.
5. The KaKu full-band dual-receive dual-transmit phased array antenna system of claim 2, wherein the dual-frequency dual-beam phased array integrated management module comprises: the system comprises a beam control module for controlling the working mode of double-frequency double-beam, a double-frequency double-beam comprehensive data processing module for scheduling peripheral resources, a four-way transmitting unit for transmitting signals and a four-way receiving unit for receiving signals;
the peripheral resources comprise carrier attitude measurement equipment, a navigation positioning system, a four-channel beacon receiver, a system thermal management system, a system health management system, a power management system and a debugging interface which are respectively in communication connection with the dual-frequency dual-beam comprehensive data processing module;
the beam control module is respectively connected with the four-way transmitting unit and the four-way receiving unit;
the four-way transmitting unit and the four-way receiving unit are respectively in communication connection with the Ka frequency band/Ku frequency band dual-beam phased array receiving unit and the Ka frequency band/Ku frequency band dual-beam phased array transmitting unit, and the four-way receiving unit is connected with the four-way beacon receiver;
the beam control module, the dual-frequency dual-beam comprehensive data processing module, the modem and the user terminal are connected in sequence; the modem is respectively connected with the four-way transmitting unit and the four-way receiving unit;
the system also comprises a gesture measurement system, wherein the gesture measurement system comprises an inertial measurement unit for measuring the gesture information of the antenna, a transmission system for adjusting the gesture of the antenna and an antenna control unit for controlling the transmission system.
6. An operation method of a KaKu full-band dual-receiving and dual-transmitting phased array antenna system, based on the KaKu full-band dual-receiving and dual-transmitting phased array antenna system as claimed in claim 5, comprising the following steps:
s1, selecting a working mode:
firstly, according to the working frequency band of a satellite, the working frequency band comprises a single frequency band and a double frequency band, a single frequency band working mode/a double frequency band working mode is correspondingly selected, and then a single beam mode/a double beam mode is selected according to network communication where a user terminal is located;
s2, starting communication:
when a single-band working mode is selected, a communication link is established through a single-beam mode/a dual-beam mode, and then communication is started;
when a dual-band working mode is selected, communication links of a Ku frequency band beam and a Ka frequency band beam are respectively established through a single-beam mode/a dual-beam mode, and Ku frequency band pointing data and Ka frequency band pointing data are obtained; simultaneously correcting the attitude measurement system by using the Ku frequency band pointing data and the Ka frequency band pointing data; then, the Ku frequency band beam and the Ka frequency band beam are utilized to start communication;
the correction method comprises the following steps: in an initial state, firstly correcting an attitude measurement system by using Ku frequency band pointing data, and then controlling the Ka frequency band beam pointing by using the corrected attitude measurement data; when the Ka frequency band wave beam is not stably directed to the corresponding satellite in the running state, the Ku frequency band pointing data is used for correcting the attitude measurement system; when the beam can stably point to the satellite in the Ka frequency band, the Ka frequency band pointing data is used for correcting the attitude measurement system.
7. The operation method of the KaKu full-band dual-receiving and dual-transmitting phased array antenna system as claimed in claim 6, wherein the single beam mode is as follows: under the determined frequency band, selecting one beam to work, enabling the other beam to be in a silent state, pointing the selected beam to a corresponding satellite, correcting the selected beam by a correction attitude measurement system, establishing a communication link, and starting communication;
the working method of the dual-beam mode comprises the following steps: under the determined frequency band, respectively pointing the two beams to the corresponding satellites and establishing a communication link, obtaining pointing data of the two beam building links by the system, correcting the attitude measurement system, and then starting communication by using the two beams;
the pointing data includes the azimuth angle and elevation angle of the beam.
8. The method for operating a KaKu full band dual-receive dual-transmit phased array antenna system of claim 7, wherein said attitude measurement system corrects the selected beam pointing by: firstly, measuring antenna attitude information through an inertia measurement unit, driving a transmission system by an antenna control unit according to the antenna attitude measurement information, changing the attitude of an antenna, and correcting the selected beam direction.
9. The method for operating a KaKu full-band dual-receive dual-transmit phased array antenna system of claim 7, wherein in step S2, the method for selecting one of the beams is: and comparing the signal to noise ratios of the received signals, and selecting a beam with a larger signal to noise ratio.
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| CN202311778534.2A CN117879636A (en) | 2023-12-22 | 2023-12-22 | System of KaKu full-band dual-receiving dual-transmitting phased array antenna and operation method thereof |
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| CN202311778534.2A CN117879636A (en) | 2023-12-22 | 2023-12-22 | System of KaKu full-band dual-receiving dual-transmitting phased array antenna and operation method thereof |
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| CN202311778534.2A Pending CN117879636A (en) | 2023-12-22 | 2023-12-22 | System of KaKu full-band dual-receiving dual-transmitting phased array antenna and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117879636A (en) |
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2023
- 2023-12-22 CN CN202311778534.2A patent/CN117879636A/en active Pending
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