CN111600650A - Method, system and device for verifying satellite-ground radio frequency transceiving - Google Patents
Method, system and device for verifying satellite-ground radio frequency transceiving Download PDFInfo
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- CN111600650A CN111600650A CN202010586453.2A CN202010586453A CN111600650A CN 111600650 A CN111600650 A CN 111600650A CN 202010586453 A CN202010586453 A CN 202010586453A CN 111600650 A CN111600650 A CN 111600650A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
- H04B17/3912—Simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for a given geographic region
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a method, a system and a device for verifying the receiving and sending of a simulated satellite-ground radio frequency, which are used for simulating a satellite transponder and equipment to be tested to carry out ground self-loop test, debugging or maintenance, wherein the device comprises the following components: the device comprises a shell, a horn antenna, an orthogonal mode coupler, a mixer and a phase-locked source, wherein the horn antenna is fixedly connected to the side wall of the outer side of the shell through a flange and used for receiving a microwave signal sent by equipment to be tested; the invention has stable and reliable performance, light weight, low power consumption, simple structure, low noise coefficient and high stray elevation system.
Description
Technical Field
The invention belongs to the technical field of analog satellite communication, and particularly relates to a method, a system and a device for verifying satellite-ground radio frequency transceiving.
Background
The communication satellite transponder is also called a communication satellite repeater, and is called a transponder for short. The satellite communication equipment is arranged on a satellite and used for receiving and forwarding radio signals transmitted by satellite communication earth stations and is equipment for realizing communication between the earth stations or between the earth stations and a spacecraft. The repeater is used for amplifying and frequency-converting the received signals and transmitting the signals to each satellite communication earth station or spacecraft again. Communication satellite repeaters are classified into two categories, a transparent repeater and a processing repeater. The transparent transponder only completes the forwarding task except low noise amplification, frequency conversion and power amplification; the processing repeater has a signal processing function besides forwarding signals.
The repeater is a communication subsystem in a communication satellite and is the core of the communication satellite, the simulation repeater is used as special equipment for ground test of a repeater of the communication satellite and is mainly used for simulating the frequency relation and the level relation of the repeater, the size of a forwarded signal of the direct frequency conversion repeater has an adjustable function, and the condition that the signal of an actual communication satellite has different coverage field strengths in different regions is simulated. The method is suitable for real-time communication of multiple sites and multiple antennas, and can change the uplink and downlink signal-to-noise ratio and simulate the data rate under the condition of different signal-to-noise ratios.
Disclosure of Invention
The invention aims to provide a method, a system and a device for verifying satellite-ground radio frequency transceiving so as to solve the problem of inconvenient test of satellite communication equipment.
The invention adopts the following technical scheme: a simulation satellite-ground radio frequency transceiving verification device is used for simulating a satellite transponder and equipment to be tested to carry out ground self-loop test, debugging or maintenance, and comprises:
the shell is a cuboid or a cube,
the horn antenna is fixedly connected to the outer side wall of the shell through a flange and is used for receiving microwave signals sent by the equipment to be tested,
the orthogonal mode coupler is arranged in the inner cavity of the shell and close to the horn antenna, the receiving and sending ends of the orthogonal mode coupler are connected with the horn antenna and used for converting microwave signals into linearly polarized signals,
the phase-locked source is arranged at the central position of the inner cavity of the shell, is fixed at the bottom of the shell through a bolt and is used for transmitting a microwave signal with preset frequency,
the mixer is arranged in the inner cavity of the shell and on one side far away from the horn antenna, is fixed at the bottom of the shell through a bolt and is respectively connected with the phase-locked source and the orthogonal mode coupler; the device is used for receiving the microwave signal of the phase-locked source and the linear polarization signal of the orthogonal mode coupler, carrying out frequency conversion, and transmitting the microwave signal to the equipment to be tested through the orthogonal mode coupler and the horn antenna in sequence after the frequency conversion.
The cross coupler is transversely and coaxially arranged with the orthogonal mode coupler and is arranged at the bottom of the shell, and the cross coupler is used for transmitting a detection microwave signal to an external detection system through a radio frequency cable;
the orthogonal mode coupler, the cross coupler and the first filter are sequentially arranged along the receiving channel and are transversely arranged;
the second filter is arranged on the transmitting channel and is arranged on one side, close to the horn antenna, of the inner cavity of the shell.
Furthermore, a first attenuator, a second attenuator and a third attenuator are correspondingly arranged between the mixer and the first filter, between the mixer and the second filter and between the mixer and the phase-locked source, and the first attenuator, the second attenuator and the third attenuator are all mounted at the bottom of the shell through bolts.
Furthermore, the first filter and the second filter are both arranged in the shell through supports, the two supports are L-shaped, the vertical sections of the two supports are provided with grooves, the horizontal sections of the two supports are fixed at the bottom of the shell through bolts, and the two grooves are respectively used for enabling one ends of the first filter and one end of the second filter to extend into the grooves, so that the central axes of the first filter, the cross coupler, the orthomode coupler and the horn antenna are superposed; the second filter and the orthogonal mode coupler are arranged vertically to each other; the mixer is mounted in the housing by an n-piece.
Furthermore, the phase-locked source is connected with a processor, the processor is used for controlling the phase-locked source to emit microwave signals with preset frequency, and the processor is installed in the inner cavity of the shell and on one side corresponding to the cross coupler and fixed at the bottom of the shell through bolts.
A simulation satellite-ground radio frequency transceiving verification system is used for simulating a satellite transponder and equipment to be tested to carry out ground self-loop test, debugging or maintenance, and comprises the following components:
the horn antenna is used for receiving microwave signals sent by the equipment to be tested,
an orthogonal mode coupler for converting the microwave signal into a linearly polarized signal,
a phase-locked source for transmitting a microwave signal of a predetermined frequency,
a mixer connected with the phase-locked source and the orthogonal mode coupler respectively for receiving the microwave signal of the phase-locked source and the linear polarization signal of the orthogonal mode coupler and performing frequency conversion,
and the microwave signal after frequency conversion sequentially passes through the orthogonal mode coupler and the horn antenna to transmit the microwave signal to the equipment to be tested.
Furthermore, a cross coupler is connected between the orthogonal mode coupler and the frequency mixer along the receiving path, and the cross coupler is used for transmitting a detection microwave signal to an external detection system through a radio frequency cable; a first filter is also arranged between the cross coupler and the frequency mixer; a second filter is also connected along the transmit path between the mixer and the quadrature-mode coupler.
Furthermore, a first attenuator, a second attenuator and a third attenuator are correspondingly arranged between the mixer and the first filter, between the mixer and the second filter and between the mixer and the phase-locked source.
Further, the phase-locked source is connected with a processor, the processor is used for controlling the phase-locked source to emit microwave signals with preset frequency, and the phase-locked source is provided with a plurality of frequencies which are 1.5G, 1.75G, 2.3G, 2.8G and 3.3G respectively.
A simulation satellite-ground radio frequency transceiving verification method is used for simulating a satellite transponder and equipment to be tested to carry out ground self-loop test, debugging or overhaul and comprises the following steps:
receiving microwave signals sent by the equipment to be tested through the horn antenna,
the microwave signal is converted into a linearly polarized signal by an orthogonal mode coupler,
the cross coupler is used for transmitting the linear polarization model from the horn antenna to an external detection system through a radio frequency cable,
transmitting a microwave signal of a predetermined frequency using a phase-locked source,
the frequency mixer is used for carrying out frequency conversion on a microwave signal of a phase-locked source and a linear polarization signal of the orthogonal mode coupler,
and transmitting the microwave signal to the equipment to be tested through the orthogonal mode coupler and the horn antenna in sequence after frequency conversion.
The invention has the beneficial effects that: the invention is especially suitable for being used as a simulation transponder device for ground self-loop test, debugging or overhaul of a satellite communication system, transmits a wireless signal with minimum additional noise and distortion and enough working frequency band and output power, and has the advantages of stable and reliable performance, light weight, low power consumption, simple structure, low noise coefficient, high stray elevation system, strong anti-interference, simple control and convenient installation.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a schematic diagram of the principles of the present invention;
FIG. 3 is an isometric view of the device of the present invention.
Wherein: 1. a horn antenna; 2. a housing; 3. a phase-locked source; 4. a mixer; 5. a first filter; 6. a second filter; 7. an orthogonal mode coupler; 8. a cross coupler; 9. a processor; 10. a first attenuator; 11. a second attenuator; 12. a third attenuator.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention also discloses a simulation satellite-ground radio frequency transceiving verification device, which is used for simulating a satellite transponder and equipment to be tested to perform ground self-loop test, debugging or overhaul, and as shown in fig. 1 and 3, the simulation satellite-ground radio frequency transceiving verification device comprises: the device comprises a shell 2, a horn antenna 1, an orthogonal mode coupler 7, a phase-locked source 3 and a frequency mixer 4, wherein the shell 2 is a cube or a cuboid, the horn antenna 1 is fixedly connected to the outer side wall of the shell 2 through a flange, the horn antenna 1 is used for receiving microwave signals sent by equipment to be tested, the orthogonal mode coupler 7 is arranged at a position close to the horn antenna 1 in the inner cavity of the shell 2, the receiving and transmitting end is connected with the horn antenna 1, the orthogonal mode coupler 7 is used for converting microwave signals into linearly polarized signals, the phase-locked source 3 is arranged at the central position of the inner cavity of the shell 2, and is fixed at the bottom of the shell 2 through a bolt, the phase-locked source 3 is used for transmitting microwave signals with preset frequency, the mixer 4 is arranged at one side of the inner cavity of the shell 2 far away from the horn antenna 1, the mixer 4 is respectively connected with the phase-locked source 3 and the orthogonal mode coupler 7; the mixer 4 is used for receiving the microwave signal of the phase-locked source 3 and the linear polarization signal of the orthogonal mode coupler 7, performing frequency conversion, and transmitting the microwave signal to the device to be tested through the orthogonal mode coupler 7 and the horn antenna 1 in sequence after the frequency conversion.
The device also comprises a cross coupler 8 which is transversely and coaxially arranged with the orthogonal mode coupler 7 and is arranged at the bottom of the shell 2, wherein the cross coupler 8 is used for transmitting a detection microwave signal to an external detection system through a radio frequency cable; the filter is characterized by further comprising a first filter 5 which is coaxially arranged with the cross coupler 8 and is arranged at the bottom of the shell 2, wherein the orthogonal mode coupler 7, the cross coupler 8 and the first filter 5 are sequentially arranged along the receiving channel and are transversely arranged; the antenna also comprises a second filter 6 which is perpendicular to the orthogonal mode coupler 7, wherein the second filter 6 is arranged on the transmitting channel and is arranged on one side of the inner cavity of the shell 2, which is close to the horn antenna 1.
A first attenuator 10, a second attenuator 11 and a third attenuator 12 are correspondingly arranged between the mixer 4 and the first filter 5, between the mixer 4 and the second filter 6 and between the mixer 4 and the phase-locked source 3, and the first attenuator 10, the second attenuator 11 and the third attenuator 12 are all mounted at the bottom of the shell 2 through bolts.
The first filter 5 is installed in the shell 2 through a support, the support is L-shaped, a groove is formed in the vertical section of the support, the horizontal section of the support is fixed to the bottom of the shell 2 through a bolt, and the groove is used for enabling one end of the first filter 5 to extend into the groove, so that the central axes of the first filter 5, the cross coupler 8, the orthomode coupler 7 and the horn antenna 1 are overlapped; the mixer 4 is mounted in the housing 2 by means of an n-piece.
The second filter 6 is also installed in the shell 2 through a support, the support is L-shaped, a groove is formed in the vertical section of the support, the horizontal section of the support is fixed to the bottom of the shell 2 through a bolt, and one end of the groove, which is used for the second filter 6, extends into the groove, so that the second filter 6 and the orthogonal mode coupler 7 are perpendicular to each other.
The phase-locked source 3 is connected with a processor 9, the processor 9 is used for controlling the phase-locked source 3 to emit microwave signals with preset frequency, and the processor 9 is installed in the inner cavity of the shell 2 and at one side corresponding to the cross coupler 8 and fixed at the bottom of the shell 2 through bolts.
The invention discloses a simulation satellite-ground radio frequency transceiving verification system, which is used for simulating a satellite transponder and equipment to be tested to perform ground self-loop test, debugging or overhaul, and comprises the following components as shown in figure 2: the device comprises a horn antenna 1, an orthogonal mode coupler 7, a phase-locked source 3 and a frequency mixer 4, wherein the horn antenna 1 is used for receiving microwave signals sent by a device to be tested, the orthogonal mode coupler 7 is used for converting the microwave signals into linear polarization signals, the phase-locked source 3 is used for transmitting the microwave signals with preset frequency, the frequency mixer 4 is respectively connected with the phase-locked source 3 and the orthogonal mode coupler 7, the frequency mixer 4 is used for receiving the microwave signals of the phase-locked source 3 and the linear polarization signals of the orthogonal mode coupler 7 and carrying out frequency conversion, and the microwave signals after frequency conversion sequentially pass through the orthogonal mode coupler 7 and the horn antenna 1 to transmit the microwave signals to the device to be tested.
A cross coupler 8 is also connected between the orthogonal mode coupler 7 and the frequency mixer 4 along the receiving path, and the cross coupler 8 is used for transmitting a detection microwave signal to an external detection system through a radio frequency cable; a first filter 5 is also arranged between the cross coupler 8 and the mixer 4; a second filter 6 is also connected along the transmit path between the mixer 4 and the quadrature mode coupler 7.
A first attenuator 10, a second attenuator 11, and a third attenuator 12 are provided between the mixer 4 and the first filter 5, between the mixer 4 and the second filter 6, and between the mixer 4 and the phase-locked source 3, respectively. The phase-locked source 3 is connected with a processor 9, the processor 9 is used for controlling the phase-locked source 3 to emit microwave signals with preset frequency, and the phase-locked source 3 is provided with a plurality of frequencies which are 1.5G, 1.75G, 2.3G, 2.8G and 3.3G respectively.
The invention also discloses a simulation satellite-ground radio frequency transceiving verification method, which is used for simulating a satellite transponder and equipment to be tested to carry out ground self-loop test, debugging or maintenance and comprises the following steps:
the microwave signal sent by the device to be tested is received by the horn antenna 1,
the microwave signal is converted into a linearly polarized signal by means of an orthogonal mode coupler 7,
the cross coupler 8 is used to feed the linearly polarized version from the horn antenna 1 to the external detection system via a radio frequency cable,
a microwave signal of a predetermined frequency is transmitted by the phase-locked source 3,
the microwave signal of the phase-locked source 3 and the linear polarization signal of the orthogonal mode coupler 7 are subjected to frequency conversion by using a mixer 4,
the microwave signal after frequency conversion sequentially passes through the orthogonal mode coupler 7 and the horn antenna 1 to transmit the microwave signal to the equipment to be tested.
According to the invention, a microwave signal sent by a device to be tested is received through a horn antenna 1, the microwave signal is converted into a linear polarization signal after passing through an orthogonal mode coupler 7, then the linear polarization signal enters a first filter 5, clutter signals are filtered, the linear polarization signal and a phase-locked source 3 transmit a microwave signal with a preset frequency, down conversion is carried out by using a frequency mixer 4, the microwave signal after frequency conversion sequentially passes through the orthogonal mode coupler 7 and the horn antenna 1 to transmit the microwave signal to the device to be tested, the function of down conversion forwarding is realized, and one-time frequency conversion is completed.
The phase-locked source 3 generates a microwave signal with a predetermined frequency, the microwave signal is adjusted by the third attenuator 12 and then input to the mixer 4, and the mixer 4 converts the received microwave signal with the predetermined frequency and the linear polarization signal and outputs the microwave signal to the device to be tested.
A first attenuator 10, a second attenuator 11, and a third attenuator 12 are provided between the mixer 4 and the first filter 5, between the mixer 4 and the second filter 6, and between the mixer 4 and the phase-locked source 3, respectively. The first attenuator 10, the second attenuator 11 and the third attenuator 12 can manually or automatically adjust the signal attenuation under different frequency bands, so that the signal output by the antenna can be in coverage matching with the field intensity of the Ku wave band of a normal satellite, and the signal size of the circuit can be adjusted.
The selection of the extension frequency band of the phase-locked source 3 can manually or automatically adjust different frequency bands, 5 independent local oscillators are made, the power supply of each local oscillator is controlled through a switch, and the local oscillators are combined by adopting a band-pass filter to respectively inhibit harmonic waves of more than 2 times of each local oscillator. The local oscillation switch is arranged outside the shell 2, and needs to be controlled in a manual mode or an automatic mode, so that manual operation is facilitated, and the control interface is RS 232.
The specific technical indexes of the horn antenna are as follows:
| frequency range | Gain of | Standing wave |
| 10.7-14.5GHz | Receive 16 dBi/transmit 15dBi | <1.2 |
Polarization mode of horn antenna
Linearly polarized and adjustable, and the polarization direction is adjusted by a mechanical installation mode.
The specific technical indexes of the filter are as follows:
specific specifications of the first filter 5:
| frequency range | Loss of insertion | 12.75GHz | 15.25GHz |
| 13.75-14.5GHz | <1.5dB | >30dB | >30dB |
Specific specifications of the second filter 6:
| frequency range | Loss of insertion | 13.75GHz |
| 10.7-12.75GHz | <1.5dB | >30dB |
Attenuator:
the signal attenuation under different frequency bands can be manually or automatically adjusted, so that the signal output by the antenna can be in coverage matching with the field intensity of the Ku wave band of a normal satellite.
Specific technical indexes of the second attenuator 11:
| frequency range | Attenuation amount | Input standing wave | Output standing wave |
| 13.75-14.5GHz | 5dB | 2 | 2 |
| 13.75-14.5GHz | 10dB | 2 | 2 |
| 13.75-14.5GHz | 15dB | 2 | 2 |
The specific technical indexes of the phase-locked source 3 are as follows:
5 independent local oscillators are made: 1.5G/1.75GHz/2.3G/2.8G/3.3G, the power supply of each local oscillator is controlled by a switch, and the local oscillators are combined by adopting a band-pass filter to respectively inhibit harmonic waves of more than 2 times of each local oscillator. The local oscillator change-over switch is arranged outside the box body, and needs to be controlled in two modes of manual and automatic instruction sending, so that manual operation is facilitated, and the control interface is RS 232.
Extended frequency conversion relationship:
the power supply mode comprises the following steps: alternating current 220V, 50Hz, and power consumption < 200W.
The environmental requirements are as follows: storage temperature: -40 ℃ to 85 ℃; working temperature: -30 ℃ to 65 ℃, protection class, IP 65.
Claims (10)
1. A simulation satellite-ground radio frequency transceiving verification device is used for simulating a satellite transponder and equipment to be tested to perform ground self-loop test, debugging or maintenance, and comprises the following components:
a shell (2) which is a cuboid or a cube,
the horn antenna (1) is fixedly connected to the outer side wall of the shell (2) through a flange and is used for receiving microwave signals sent by equipment to be tested,
the orthogonal mode coupler (7) is arranged in the position, close to the horn antenna (1), of the inner cavity of the shell (2), the receiving and sending ends of the orthogonal mode coupler are connected with the horn antenna (1) and used for converting microwave signals into linearly polarized signals,
the phase-locked source (3) is arranged at the central position of the inner cavity of the shell (2), is fixed at the bottom of the shell (2) through a bolt and is used for transmitting a microwave signal with a preset frequency,
the mixer (4) is arranged in the inner cavity of the shell (2), is far away from one side of the horn antenna (1), is fixed at the bottom of the shell (2) through bolts, and is respectively connected with the phase-locked source (3) and the orthogonal mode coupler (7); the device is used for receiving the microwave signal of the phase-locked source (3) and the linear polarization signal of the orthogonal mode coupler (7), carrying out frequency conversion, and transmitting the microwave signal to the device to be tested through the orthogonal mode coupler (7) and the horn antenna (1) in sequence after the frequency conversion.
2. A simulated satellite-ground radio frequency transceiving verification device according to claim 1, further comprising a cross coupler (8) which is transversely and coaxially arranged with the orthomode coupler (7) and is installed at the bottom of the shell (2), wherein the cross coupler (8) is used for transmitting a detection microwave signal to an external detection system through a radio frequency cable;
the cross coupler (8) and the first filter (5) are coaxially arranged and mounted at the bottom of the shell (2), and the orthogonal mode coupler (7), the cross coupler (8) and the first filter (5) are sequentially arranged along the receiving channel and are transversely arranged;
the antenna also comprises a second filter (6) which is perpendicular to the orthogonal mode coupler (7), wherein the second filter (6) is arranged on the transmitting channel and is arranged on one side, close to the horn antenna (1), of the inner cavity of the shell (2).
3. A satellite-ground simulating radio frequency transceiving verification device according to claim 2, wherein a first attenuator (10), a second attenuator (11) and a third attenuator (12) are correspondingly arranged between the mixer (4) and the first filter (5), between the mixer (4) and the second filter (6) and between the mixer (4) and the phase-locked source (3), and the first attenuator (10), the second attenuator (11) and the third attenuator (12) are all mounted at the bottom of the housing (2) through bolts.
4. The simulated satellite-ground radio frequency transceiving verification device according to claim 3, wherein the first filter (5) and the second filter (6) are both mounted in the housing (2) through brackets, the two brackets are L-shaped, a groove is formed in the vertical section of each bracket, the horizontal section of each bracket is fixed to the bottom of the housing (2) through a bolt, and the two grooves are respectively used for enabling one ends of the first filter (5) and one end of the second filter (6) to extend into the grooves, so that central axes of the first filter (5), the cross coupler (8), the orthomode coupler (7) and the horn antenna (1) are coincident; so that the second filter (6) and the quadrature mode coupler (7) are arranged perpendicular to each other; the mixer (4) is mounted in the housing (2) by means of an n-piece.
5. A simulated satellite-ground radio frequency transceiving verification device according to any one of claims 1 to 4, wherein a processor (9) is connected to the phase-locked source (3), the processor (9) is used for controlling the phase-locked source (3) to emit microwave signals with a predetermined frequency, and the processor (9) is installed in the inner cavity of the shell (2) and at one side of the corresponding cross coupler (8) and fixed at the bottom of the shell (2) through bolts.
6. A simulation satellite-ground radio frequency transceiving verification system is used for simulating a satellite transponder and equipment to be tested to perform ground self-loop test, debugging or maintenance, and comprises the following components:
the horn antenna (1) is used for receiving microwave signals sent by equipment to be tested,
an orthogonal mode coupler (7) for converting the microwave signal into a linearly polarized signal,
a phase locked source (3) for transmitting a microwave signal of a predetermined frequency,
a mixer (4) which is respectively connected with the phase-locked source (3) and the orthogonal mode coupler (7) and is used for receiving the microwave signal of the phase-locked source (3) and the linear polarization signal of the orthogonal mode coupler (7) and carrying out frequency conversion,
the microwave signals after frequency conversion sequentially pass through the orthogonal mode coupler (7) and the horn antenna (1) to transmit the microwave signals to the equipment to be tested.
7. A simulated satellite-ground radio frequency transceiving verification system according to claim 6, wherein a cross coupler (8) is further connected between said orthomode coupler (7) and said mixer (4) along a receiving path, said cross coupler (8) being configured to transmit a detection microwave signal to an external detection system through a radio frequency cable; a first filter (5) is also arranged between the cross coupler (8) and the mixer (4); a second filter (6) is also connected along the transmit path between the mixer (4) and the quadrature mode coupler (7).
8. A satellite-ground simulating radio frequency transceiving verification system according to claim 7, wherein a first attenuator (10), a second attenuator (11) and a third attenuator (12) are correspondingly arranged between the mixer (4) and the first filter (5), between the mixer (4) and the second filter (6) and between the mixer (4) and the phase-locked source (3).
9. An analog satellite-ground radio frequency transceiving verification system according to any one of claims 6 to 8, wherein a processor (9) is connected to the phase-locked source (3), the processor (9) is configured to control the phase-locked source (3) to transmit a microwave signal with a predetermined frequency, and the phase-locked source (3) is provided with a plurality of frequencies, which are 1.5G, 1.75G, 2.3G, 2.8G and 3.3G respectively.
10. A simulation satellite-ground radio frequency transceiving verification method is characterized by being used for simulating a satellite transponder and equipment to be tested to perform ground self-loop test, debugging or maintenance, and comprising the following steps of:
receiving microwave signals sent by the equipment to be tested through the horn antenna (1),
the microwave signal is converted into a linearly polarized signal by an orthogonal mode coupler (7),
the cross coupler (8) is utilized to transmit the linear polarization model number from the horn antenna (1) to an external detection system through a radio frequency cable,
transmitting a microwave signal of a predetermined frequency using a phase locked source (3),
the frequency mixer (4) is used for carrying out frequency conversion on the microwave signal of the phase-locked source (3) and the linear polarization signal of the orthogonal mode coupler (7),
the microwave signals after frequency conversion sequentially pass through the orthogonal mode coupler (7) and the horn antenna (1) to transmit the microwave signals to the equipment to be tested.
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| CN202010586453.2A CN111600650A (en) | 2020-06-24 | 2020-06-24 | Method, system and device for verifying satellite-ground radio frequency transceiving |
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|---|---|---|---|
| CN202010586453.2A CN111600650A (en) | 2020-06-24 | 2020-06-24 | Method, system and device for verifying satellite-ground radio frequency transceiving |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422170A (en) * | 2020-11-09 | 2021-02-26 | 大连交通大学 | Near-field automatic detection method for dual-band radio frequency equipment |
-
2020
- 2020-06-24 CN CN202010586453.2A patent/CN111600650A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422170A (en) * | 2020-11-09 | 2021-02-26 | 大连交通大学 | Near-field automatic detection method for dual-band radio frequency equipment |
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