Satellite rotating cabin radio frequency signal transmission system and method based on photoelectric slip ring

Abstract

The application relates to a satellite rotating cabin radio frequency signal transmission system and method based on an optoelectronic slip ring, which comprises a baseline conversion module located in a satellite rotating cabin, the baseline conversion module being used for converting a radio frequency signal into an optical signal or converting an optical signal into a radio frequency signal; an optoelectronic slip ring located in a rotating table, the optoelectronic slip ring comprising an optical slip ring and an electric slip ring, the optoelectronic slip ring being driven to rotate by the rotating table, the optoelectronic slip ring being used for non-contact transmission of an optical signal or a radio frequency signal; and a platform conversion module located in a satellite platform cabin, the platform conversion module being used for converting a radio frequency signal into an optical signal or converting an optical signal into a radio frequency signal. The satellite rotating cabin radio frequency signal transmission system based on the optoelectronic slip ring provided by the application uses the optoelectronic slip ring to realize single-channel or multi-channel transmission of various radio frequency signals, and is beneficial to the lightweight and miniaturization of complex signal transmission of an on-board system.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of spacecraft communication technology, in particular to a satellite rotating cabin radio frequency signal transmission system and method based on an optical and electrical slip ring. BACKGROUND

[0002] At present, for the transmission of radio frequency signals in the rotating state of a satellite, optical slip rings, radio frequency rotating joints and other products are usually used. The on-board radio frequency channel is mainly used for measurement and control, data transmission, navigation and positioning, and loads, and has high reliability requirements. Because the radio frequency signal passes through the rotating module, there is an insertion loss in the channel conversion. In particular, for multi-channel radio frequency signal transmission, when the number of radio frequency channels increases, the volume and weight of the radio frequency rotating joint also increase with the number of channels. The channel insertion loss and the isolation of each channel become worse, and the life, technical indicators and reliability of each channel are deteriorated due to rotation wear. There are certain technical difficulties in the transmission of radio frequency signals under the on-board rotating condition.

[0003] The commonly used on-board radio frequency signal ranges from L band (frequency 1-2 GHz) to Ka band (frequency 26.5-40 GHz), and in recent years has gradually expanded to Q / V band (frequency 40 / 50 GHz) and W band (frequency 70 / 80 GHz). There is a trend of developing towards wider and higher frequency bands and more channels for on-board radio frequency signals.

[0004] The radio frequency rotating joint mainly includes waveguide rotating joints and coaxial rotating joints. The non-contact type is mainly waveguide rotating joints, which have the advantages of long service life and simple structure, but the disadvantages of large volume and narrow transmission band. The coaxial rotating joint uses contact transmission, and its service life is related to the rotation speed and wear of the rotating part. The existing radio frequency rotating joint is generally composed of multiple rotating single joints stacked together, which has the problems of large volume and many restrictions on its use on the satellite. Some use a common rotating conductor, which has the problem of poor channel isolation. Therefore, the use of the existing radio frequency rotating joint on the satellite has many limitations. SUMMARY

[0005] In view of some or all of the problems in the prior art, the present application provides a satellite rotating cabin radio frequency signal transmission system based on an optical and electrical slip ring, which comprises:

[0006] a baseline conversion module located in the satellite rotating cabin, the baseline conversion module being used to convert a radio frequency signal into an optical signal or convert an optical signal into a radio frequency signal;

[0007] an optical and electrical slip ring located in a turntable, the optical and electrical slip ring comprising an optical slip ring and an electrical slip ring, the optical and electrical slip ring being driven to rotate by the turntable, the optical and electrical slip ring being used for non-contact transmission of an optical signal or a radio frequency signal; and

[0008] A platform conversion module is located in the satellite platform cabin, and is configured to convert a radio frequency signal into an optical signal or convert an optical signal into a radio frequency signal.

[0009] Further, the optical slip ring and the electric slip ring are connected in series; the optical slip ring comprises an optical slip ring stator and an optical slip ring rotor; the electric slip ring comprises an electric slip ring stator and an electric slip ring rotor.

[0010] The optical slip ring rotor and the electric slip ring rotor are connected through a yoke mechanism; the turntable stator is connected with the optical slip ring stator and the electric slip ring stator; the electric slip ring is driven to rotate by a first yoke mechanism, and the optical slip ring is driven to rotate by a second yoke mechanism.

[0011] The optical slip ring rotor is connected with the baseline conversion module; and the optical slip ring stator is connected with the platform conversion module.

[0012] Further, the baseline conversion module comprises a radio frequency to optical emission module and an optical to radio frequency receiving module; and / or

[0013] The platform conversion module comprises a radio frequency to optical emission module and an optical to radio frequency receiving module.

[0014] Further, the radio frequency to optical emission module comprises a pre-low noise amplifier, an electro-optical converter and an automatic power / temperature controller.

[0015] The pre-low noise amplifier is configured to perform impedance matching and low noise amplification on the radio frequency signal, and send the amplified radio frequency signal to the electro-optical converter.

[0016] The electro-optical converter is configured to convert the amplified radio frequency signal into an optical signal.

[0017] The automatic power / temperature controller is configured to automatically adjust the power output and the temperature of the radio frequency to optical emission module according to a set parameter.

[0018] Further, the optical to radio frequency receiving module comprises an optical path adapter, an opto-electric converter, an optical power detection and bias controller and a post-amplifier.

[0019] The optical path adapter is configured to automatically adjust optical elements to achieve an optimal optical path state according to changes in an external environment or optical signal parameters.

[0020] The opto-electric converter is configured to convert the optical signal into a radio frequency signal.

[0021] The optical power detection and bias controller is configured to detect the power of the optical signal and control the bias state of the optical signal.

[0022] The post-amplifier is used for amplifying the radio frequency signal and outputting the amplified radio frequency signal.

[0023] Further, the baseline conversion module and the platform conversion module further comprise a wavelength division multiplexer;

[0024] The wavelength division multiplexer is used for coupling multiple optical signals into the same optical fiber and inputting the coupled optical signals into the photoelectric slip ring; the wavelength division multiplexer is also used for recovering multiple optical signals from the coupled optical signals output by the photoelectric slip ring and inputting the recovered multiple optical signals into the photoelectric converter.

[0025] The application also provides a satellite rotating cabin radio frequency signal transmission method based on a photoelectric slip ring, which comprises the following steps:

[0026] The radio frequency to light emission module converts the input multiple radio frequency signals into multiple optical signals and inputs the multiple optical signals into the optical emission wavelength division multiplexer;

[0027] The optical emission wavelength division multiplexer couples the input optical signals into the same optical fiber and inputs the coupled optical signals into the photoelectric slip ring;

[0028] The photoelectric slip ring transmits the optical signals to the optical receiving wavelength division multiplexer;

[0029] The optical receiving wavelength division multiplexer recovers the coupled optical signals output by the photoelectric slip ring into multiple optical signals and inputs the recovered multiple optical signals into the optical to radio frequency receiving module; and

[0030] The optical to radio frequency receiving module converts the recovered multiple optical signals into multiple recovered radio frequency signals and outputs the multiple recovered radio frequency signals.

[0031] Further, the input multiple radio frequency signals comprise one or more of a TT&C radio frequency signal, a data transmission radio frequency signal, an omni-directional radio frequency signal or a payload radio frequency signal.

[0032] Further, the transmission method uses a single-channel photoelectric slip ring to convert the input multiple radio frequency signals into multiple optical signals; or

[0033] The transmission method distributes the input radio frequency signals of the same function on different photoelectric slip ring channels and uses a multi-channel photoelectric slip ring to convert the multiple radio frequency signals into multiple optical signals.

[0034] Further, the input multiple radio frequency signals are output by an omni-directional antenna, an S antenna, a TT&C antenna or a data transmission phased array; or

[0035] The multiple recovered radio frequency signals are output to an integrated electronic or microwave network.

[0036] The technical scheme provided by the present application has the following beneficial effects:

[0037] 1. The satellite rotating cabin radio frequency signal transmission system based on the photoelectric slip ring provided by the present application realizes photoelectric conversion and channel multiplexing of L-Ka wide frequency band and multi-channel radio frequency signals on the satellite through a single-channel or multi-channel photoelectric slip ring, and realizes transmission requirements of the radio frequency signals. The satellite rotating cabin radio frequency signal transmission system based on the photoelectric slip ring provided by the present application has been successfully applied to in-orbit radio frequency signal conversion between a satellite rotating cabin and a platform cabin, and covers bidirectional transmission of S-X frequency band video signals.

[0038] 2. The satellite rotating cabin radio frequency signal transmission system based on the photoelectric slip ring provided by the present application uses the photoelectric slip ring to realize single-channel or multi-channel transmission of various radio frequency signals, which is beneficial to lightweight and miniaturization of complex signal transmission of the satellite-borne system.

[0039] 3. The satellite rotating cabin radio frequency signal transmission system based on the photoelectric slip ring provided by the present application can couple the optical signals to one optical fiber or multiple optical fibers through one or more wavelength division multiplexers, and for important signals, multi-channel hot backup transmission can be used, so that electrical signal conversion and optical channel transmission redundancy can be realized, and transmission requirements of high reliability and high stability in spaceflight can be met. BRIEF DESCRIPTION OF DRAWINGS

[0040] To further clarify the above and other advantages and features of the embodiments of the present application, more particular description of the embodiments of the present application will be presented in reference to the accompanying drawings. It can be understood that these drawings only depict typical embodiments of the present application and therefore should not be considered as limiting its scope. In the drawings, the same or corresponding components will be denoted by the same or similar reference signs for the sake of clarity and intelligibility.

[0041] Figure 1 A satellite rotating cabin sub-cabin design schematic diagram of an embodiment of the present application is shown;

[0042] Figure 2 A satellite rotating cabin radio frequency signal transmission system based on a photoelectric slip ring of an embodiment of the present application is shown;

[0043] Figure 3 A photoelectric slip ring structure schematic diagram of an embodiment of the present application is shown;

[0044] Figure 4 A transmission principle schematic diagram of radio frequency signal to optical signal of an embodiment of the present application is shown;

[0045] Figure 5 A flowchart schematic diagram of a satellite rotating cabin radio frequency signal transmission method based on a photoelectric slip ring of an embodiment of the present application is shown;

[0046] Figure 6 FIG. 1 shows a schematic diagram of a single-channel optical slip ring based RF signal transmission method for a rotating cabin of a satellite, according to an embodiment of the present application; and

[0047] Figure 7 FIG. 2 shows a schematic diagram of a multi-channel optical slip ring based RF signal transmission method for a rotating cabin of a satellite, according to an embodiment of the present application. DETAILED DESCRIPTION

[0048] In the following description, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration various embodiments for practicing the present application. It is to be understood that other embodiments can be utilized and structural or operational changes can be made without departing from the scope of the present application. The following detailed description, therefore, is not to be taken in a limiting sense, as the scope of the present application is defined by the appended claims.

[0049] In this specification, reference can be made to "one embodiment" or "the embodiment" meaning that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.

[0050] It should be noted that the embodiments of the present application are described in a specific order of method steps, however this is only for the purpose of illustrating the specific embodiment, and does not limit the order of the steps. Instead, in different embodiments of the present application, the order of the steps can be adjusted according to the actual needs of adjustment.

[0051] In the present application, each module of the system according to the present application can be implemented using software, hardware, firmware or a combination thereof. When a module is implemented using software, the functions of the module can be implemented through a computer program flow, for example, the module can be implemented through a code segment (for example, a code segment in a language such as C, C++ or the like) stored in a storage device (such as a hard disk, a memory or the like), wherein the code segment can implement the corresponding functions of the module when executed by a processor. When a module is implemented using hardware, the functions of the module can be implemented by setting a corresponding hardware structure, for example, the functions of the module can be implemented by hardware programming on a programmable device such as a field programmable logic gate array (FPGA) or the like, or the functions of the module can be implemented by designing an application specific integrated circuit (ASIC) including a plurality of transistors, resistors and capacitors and the like electronic devices. When a module is implemented using firmware, the functions of the module can be written in the form of program code in a read-only memory such as an EPROM or an EEPROM of a device, and the program code can implement the corresponding functions of the module when executed by a processor. In addition, some functions of the module can need to be implemented by a separate hardware or in cooperation with the hardware, for example, a detection function is implemented by a corresponding sensor (such as a proximity sensor, an acceleration sensor, a gyroscope or the like), a signal transmission function is implemented by a corresponding communication device (such as a Bluetooth device, an infrared communication device, a baseband communication device, a Wi-Fi communication device or the like), an output function is implemented by a corresponding output device (such as a display, a loudspeaker or the like), and the like.

[0052] The photoelectric slip ring is currently increasingly mature in application in ground radio frequency signal conversion and transmission, and is widely applied in radars, underwater and missile-borne terminals, and is not yet mature in satellite-borne application. The satellite rotating cabin radio frequency signal transmission system based on the photoelectric slip ring provided in the present application is based on the multi-channel radio frequency signal transmission requirement of the rotating components on the satellite, and realizes the photoelectric conversion and channel multiplexing of the L-Ka wide frequency band and multi-channel radio frequency signals on the satellite through a single-channel / multi-channel photoelectric slip ring, and realizes the transmission requirement of the radio frequency signals. The satellite rotating cabin radio frequency signal transmission system based on the photoelectric slip ring provided in the present application has been successfully applied in the in-orbit radio frequency signal conversion between a satellite rotating cabin and a platform cabin, and covers the bidirectional transmission of S-X frequency band video signals.

[0053] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings in the embodiments of the present application.

[0054] Figure 1 A satellite rotating cabin sub-cabin design schematic diagram of one embodiment of the present application is shown. As shown in the figure, Figure 1 The satellite rotating cabin 1, i.e. the satellite load cabin, rotates at an angular velocity ω, the satellite rotating cabin 1 is connected with the turntable 2, and the satellite platform cabin 3 is fixed.

[0055] Figure 2A schematic diagram of a satellite rotating cabin radio frequency signal transmission system based on an optical and electrical slip ring is shown according to an embodiment of the present application. As shown in Figure 2 The satellite rotating cabin radio frequency signal transmission system based on an optical and electrical slip ring includes a baseline conversion module 10, an optical and electrical slip ring 20, and a platform conversion module 30. The baseline conversion module 10 is located in a satellite rotating cabin 1, and is used to convert a radio frequency signal into an optical signal or convert an optical signal into a radio frequency signal. The optical and electrical slip ring 20 is located in a turntable 2, and includes an optical slip ring and an electrical slip ring. The optical and electrical slip ring 20 is driven to rotate by the turntable 2, and is used for non-contact transmission of an optical signal or a radio frequency signal. The platform conversion module 30 is located in a satellite platform cabin 3, and is used to convert a radio frequency signal into an optical signal or convert an optical signal into a radio frequency signal. In an embodiment of the present application, the radio frequency signal includes one or more of a TT&C radio frequency signal, a data transmission radio frequency signal, an on-demand radio frequency signal, or a payload radio frequency signal.

[0056] Figure 3A schematic diagram of an optoelectronic slip ring structure according to an embodiment of the present invention is shown. As shown, a smooth ring 201 and an electric slip ring 202 are connected in series. The smooth ring 201 includes a smooth ring stator 205 and a smooth ring rotor 204; the electric slip ring 202 includes an electric slip ring stator 207 and an electric slip ring rotor 208. The smooth ring rotor 204 and the electric slip ring rotor 208 transmit driving torque through a two-stage shift fork mechanism. The turntable stator 203 is connected to the smooth ring stator 205 and the electric slip ring stator 207. The motor output shaft 210 drives the first-stage shift fork mechanism 209, which in turn drives the electric slip ring 202 to rotate. The second-stage shift fork mechanism 206 then drives the smooth ring 201 to rotate. The angular velocity of the motor output shaft 210 is ω. The installation steps for the smooth ring 201 and the electric slip ring 202 are as follows: First, install the electric slip ring rotor 208 and the smooth ring rotor 204 through a shift fork mechanism, adjusting the coaxiality and perpendicularity of the installation to achieve synchronous rotation of the two slip rings; then, install the turntable stator 203 with the smooth ring stator 205 and the electric slip ring stator 207, adjusting the coaxiality and perpendicularity of the slip ring and the turntable installation, connecting the turntable motor rotor end to the photoelectric slip ring rotor end, driving the electric slip ring to rotate by the turntable shift fork, and then achieving synchronous drive of the smooth ring by the electric slip ring shift fork; the shift fork mechanism adopts a clearance fit, and the requirements for shaft system installation accuracy are not high. The smooth ring rotor 204 is connected to the baseline conversion module 10, and the smooth ring stator 205 is connected to the platform conversion module 30, thereby realizing the interconnection of the external signal channels of the smooth ring 201. The platform conversion module 30 is connected to the corresponding single-unit power supply interface and remote control and telemetry signal of the satellite platform cabin 3, and the baseline conversion module 10 is connected to the corresponding single-unit power supply interface and remote control and telemetry signal of the satellite rotating cabin 1. The radio frequency signal transmission mechanism is as follows: data is transmitted by a single unit corresponding to satellite rotating cabin 1, and the correctness of the received data is tested by a single unit corresponding to satellite platform cabin 3; or data is transmitted by a single unit corresponding to satellite platform cabin 3, and the correctness of the received data is tested by a single unit corresponding to satellite rotating cabin 1.

[0057] In one embodiment of the present invention, the baseline conversion module 10 includes an RF-to-optical transmitter module and an optical-to-RF receiver module; and / or the platform conversion module 30 includes an RF-to-optical transmitter module and an optical-to-RF receiver module.

[0058] Figure 4 A schematic diagram illustrating the transmission principle of radio frequency signal to optical signal conversion according to an embodiment of the present invention is shown. Figure 4 This illustrates the transmission of radio frequency signals from baseline conversion module 10 to platform conversion module 30. For example... Figure 4 As shown, the baseline conversion module 10 includes a first optical transmit wavelength division multiplexer 111 and an RF-to-optical transmit module 110, and the platform conversion module 30 includes a first optical receive wavelength division multiplexer 311 and an RF-to-optical transmit module 310.

[0059] The radio frequency to light emission module 110 includes a pre-low noise amplifier 113, an electro-optical converter 114, and an automatic power / temperature controller 115. The pre-low noise amplifier 113 is used for impedance matching and low noise amplification of the radio frequency signal, and sends the amplified radio frequency signal to the electro-optical converter. The electro-optical converter 114 is used for converting the amplified radio frequency signal into an optical signal. The automatic power / temperature controller 115 automatically adjusts the power output and temperature of the radio frequency to light emission module according to the set parameters.

[0060] The light to radio frequency receiving module 310 includes an optical path adapter 313, an opto-electric converter 314, an optical power detection and bias controller 315, and a post-amplifier 316. The optical path adapter 313 is used to automatically adjust the optical elements to achieve the best optical path state according to the changes in the external environment or the optical signal parameters. The opto-electric converter 314 is used to convert the optical signal into a radio frequency signal. The optical power detection and bias controller 315 is used to detect the power of the optical signal and control the bias state of the optical signal. The post-amplifier 316 is used to amplify the radio frequency signal and output the amplified radio frequency signal.

[0061] The first optical emission wavelength division multiplexer 111 is used to couple multiple optical signals into the same optical fiber, and input the coupled optical signal to the optical slip ring 20. The first optical receiving wavelength division multiplexer 311 is used to recover multiple optical signals from the coupled optical signal output by the optical slip ring 20, and input the recovered multiple optical signals to the opto-electric converter.

[0062] Figure 5 A flowchart of a satellite rotating cabin radio frequency signal transmission method based on an optical slip ring according to an embodiment of the present application is shown. Figure 6 A schematic diagram of a single-channel satellite rotating cabin radio frequency signal transmission method based on an optical slip ring according to an embodiment of the present application is shown. Figure 7 A schematic diagram of a multi-channel satellite rotating cabin radio frequency signal transmission method based on an optical slip ring according to an embodiment of the present application is shown. Figures 5-7 The satellite rotating cabin radio frequency signal transmission method based on an optical slip ring provided by the present application is described as follows:

[0063] First, the radio frequency to light emission module converts the input multiple radio frequency signals into multiple optical signals, and inputs the multiple optical signals to the optical emission wavelength division multiplexer. In an embodiment of the present application, the input multiple radio frequency signals include one or more of the measurement and control radio frequency signal, the data transmission radio frequency signal, the random access radio frequency signal, or the payload radio frequency signal. For example, as shown in FIG. 1, the radio frequency to light emission module 110 converts the input multiple radio frequency signals into multiple optical signals, and inputs the multiple optical signals to the optical emission wavelength division multiplexer 111. Figure 6 And Figure 7As shown, the inputted multi-channel radio frequency signals are outputted by the omni-directional antenna or S antenna or TT&C antenna or data transmission phased array. The inputted multi-channel radio frequency signals enter the radio frequency to optical transmission module, and are subjected to impedance matching, low noise amplification by the preamplifier low noise amplifier, so as to realize signal amplification of the radio frequency signals. The radio frequency signals are converted into optical signals after passing through the electro-optical converter, and are transmitted through the internal optical cable of the radio frequency to optical transmission module. The multi-channel radio frequency signals are converted into one or more channels of optical signals with different wavelengths after passing through the wavelength division multiplexer. As shown in Figure 6 and Figure 7 As shown, the baseline conversion module 10 comprises a first electro-optical converter 114 for electro-optical conversion, a first photoelectric converter 116 for photoelectric conversion, and a first optical transmission wavelength division multiplexer 111 and a second optical transmission wavelength division multiplexer 112. In an embodiment of the present application, the baseline conversion module 10 can comprise two or more wavelength division multiplexers.

[0064] Next, the optical transmission wavelength division multiplexer couples the inputted optical signals into the same optical fiber, and inputs the coupled optical signals into the photoelectric slip ring 20. The photoelectric slip ring 20 is continuously rotated by the turntable 2.

[0065] Next, the photoelectric slip ring transmits the optical signals to the optical receiving wavelength division multiplexer. As shown in Figure 6 and Figure 7 As shown, the optical receiving wavelength division multiplexer comprises a first optical receiving wavelength division multiplexer 311 and a second optical transmission wavelength division multiplexer 312. In an embodiment of the present application, the platform conversion module 30 can comprise two or more wavelength division multiplexers.

[0066] Next, the optical receiving wavelength division multiplexer recovers the coupled optical signals outputted by the photoelectric slip ring into multi-channel optical signals, and inputs the recovered multi-channel optical signals into the optical to radio frequency receiving module. As shown in Figure 6 and Figure 7 As shown, the optical to radio frequency receiving module comprises a second photoelectric converter 314 for photoelectric conversion and a first electro-optical converter 317 for electro-optical conversion.

[0067] Finally, the optical to radio frequency receiving module converts the recovered multi-channel optical signals into multi-channel recovered radio frequency signals, and outputs the multi-channel recovered radio frequency signals. As shown in Figure 6 and Figure 7 As shown, the multi-channel recovered radio frequency signals are outputted to the integrated electronics or microwave network.

[0068] In an embodiment of the present application, the transmission method uses a single-channel photoelectric slip ring to convert input multi-channel radio frequency signals into multi-channel optical signal transmission; or the transmission method distributes input radio frequency signals of the same function on different photoelectric slip ring channels, uses a multi-channel photoelectric slip ring to convert into multi-channel optical signal transmission, avoids loss of function under failure of a photoelectric slip ring, and can improve application reliability. In an embodiment of the present application, a wavelength division multiplexer can not be used, but a wavelength corresponding to an optical channel can be used to achieve the implementation.

[0069] The satellite rotating cabin radio frequency signal transmission system based on a photoelectric slip ring provided by the present application uses a photoelectric slip ring to implement single-channel or multi-channel transmission of various radio frequency signals, which is conducive to lightweight and miniaturization of complex signal transmission of a satellite-borne system; one or more wavelength division multiplexers can be used to couple optical signals to one optical fiber or multiple optical fibers, important signals can be transmitted through multi-channel hot backup, electrical signal conversion and optical channel transmission redundancy can be achieved, and the transmission requirements of high reliability and high stability in spaceflight can be met.

[0070] Although the embodiments of the present application are described above, it should be understood that they are presented only as examples and not as limitations. It is obvious to those skilled in the relevant art that various combinations, modifications and changes can be made without departing from the spirit and scope of the present application. Therefore, the breadth and scope of the present application disclosed herein should not be limited by the above disclosed exemplary embodiments, but should only be defined according to the technical solutions of the present application and their equivalent replacements.

Claims

1. A satellite rotating cabin radio frequency signal transmission system based on photoelectric slip ring, characterized in that, Comprise: a baseline conversion module located in the satellite rotating cabin, the baseline conversion module is used for converting radio frequency signal into optical signal or converting optical signal into radio frequency signal; an optoelectronic slip ring located in the rotating table, the optoelectronic slip ring comprises an optical slip ring and an electrical slip ring, the optoelectronic slip ring is driven to rotate by the rotating table, and the optoelectronic slip ring is used for non-contact transmission of optical signal or radio frequency signal; and a platform conversion module located in the satellite platform cabin, the platform conversion module is used for converting radio frequency signal into optical signal or converting optical signal into radio frequency signal; the optical slip ring and the electrical slip ring are connected in series; the optical slip ring comprises an optical slip ring stator and an optical slip ring rotor; the electrical slip ring comprises an electrical slip ring stator and an electrical slip ring rotor; the optical slip ring rotor and the electrical slip ring rotor are connected through a yoke mechanism, the rotating table stator is connected with the optical slip ring stator and the electrical slip ring stator, the electrical slip ring is driven to rotate by a primary yoke mechanism, and the optical slip ring is driven to rotate by a secondary yoke mechanism; and the optical slip ring rotor is connected with the baseline conversion module, and the optical slip ring stator is connected with the platform conversion module.

2. The satellite rotating cabin radio frequency signal transmission system based on the optoelectronic slip ring according to claim 1, wherein the baseline conversion module comprises a radio frequency to optical emission module and an optical to radio frequency receiving module; and / or the platform conversion module comprises a radio frequency to optical emission module and an optical to radio frequency receiving module.

3. The satellite rotating cabin radio frequency signal transmission system based on the optoelectronic slip ring according to claim 2, wherein the radio frequency to optical emission module comprises a pre-low noise amplifier, an electro-optical converter and an automatic power / temperature controller; the pre-low noise amplifier is used for impedance matching and low noise amplification of the radio frequency signal, and sends the amplified radio frequency signal into the electro-optical converter; the electro-optical converter is used for converting the amplified radio frequency signal into optical signal; and the automatic power / temperature controller automatically adjusts the power output and temperature of the radio frequency to optical emission module according to the set parameters.

4. The satellite rotating cabin radio frequency signal transmission system based on the optoelectronic slip ring according to claim 2, wherein the optical to radio frequency receiving module comprises an optical path adapter, an optoelectronic converter, an optical power detection and bias controller and a post-amplifier; the optical path adapter is used for automatically adjusting the optical element to achieve the best optical path state according to the change of external environment or optical signal parameters; the optoelectronic converter is used for converting the optical signal into radio frequency signal; the optical power detection and bias controller is used for detecting the power of the optical signal and controlling the bias state of the optical signal; and the post-amplifier is used for amplifying the radio frequency signal and outputting the amplified radio frequency signal.

5. The satellite rotating cabin radio frequency signal transmission system based on the optoelectronic slip ring according to claim 2, wherein the baseline conversion module and the platform conversion module further comprise a wavelength division multiplexer. ​ The wavelength division multiplexer is configured to couple the multiple optical signals into the same optical fiber and input the coupled optical signals into the photoelectric slip ring; and the wavelength division multiplexer is also configured to recover the multiple optical signals from the coupled optical signals output by the photoelectric slip ring and input the recovered multiple optical signals into the photoelectric transducer.

6. A method of using the optoelectronic slip ring based satellite rotating cabin radio frequency signal transmission system according to any one of claims 1-5, characterized in that, The method comprises the following steps: The radio frequency to light transmitting module converts the input multiple radio frequency signals into multiple optical signals and inputs the multiple optical signals into the optical transmitting wavelength division multiplexer; The optical transmitting wavelength division multiplexer couples the input optical signals into the same optical fiber and inputs the coupled optical signals into the photoelectric slip ring; The photoelectric slip ring transmits the optical signals to the optical receiving wavelength division multiplexer; The optical receiving wavelength division multiplexer recovers the multiple optical signals from the coupled optical signals output by the photoelectric slip ring and inputs the recovered multiple optical signals into the light to radio frequency receiving module; The light to radio frequency receiving module converts the recovered multiple optical signals into multiple recovered radio frequency signals and outputs the multiple recovered radio frequency signals.

7. The satellite rotating cabin radio frequency signal transmission method based on the photoelectric slip ring according to claim 6, wherein The input multiple radio frequency signals comprise one or more of the measurement and control radio frequency signals, the data transmission radio frequency signals, the random access radio frequency signals or the load radio frequency signals.

8. The satellite rotating cabin radio frequency signal transmission method based on the photoelectric slip ring according to claim 6, wherein The transmission method uses a single-channel photoelectric slip ring to convert the input multiple radio frequency signals into the transmission of multiple optical signals; or The transmission method distributes the input radio frequency signals of the same function on different photoelectric slip ring channels and uses a multi-channel photoelectric slip ring to convert the transmission of multiple optical signals.

9. The satellite rotating cabin radio frequency signal transmission method based on the photoelectric slip ring according to claim 6, wherein The input multiple radio frequency signals are output by the random access antenna, the S antenna, the measurement and control antenna or the data transmission phased array; or The multiple recovered radio frequency signals are output to the integrated electronics or the microwave network. ​

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