CN115589246A - Relay forwarding method, device and medium - Google Patents
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Abstract
The application discloses a relay forwarding method, a relay forwarding device and a relay forwarding medium, which relate to the field of satellite communication, and are used for receiving a first downlink signal sent by a satellite in order to avoid the need of purchasing different system services to access different systems by a ground user; analyzing the first downlink signal to obtain an original downlink waveform signal; converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal; and transmitting the converted downlink waveform signal to a ground user terminal. The method comprises the steps of analyzing and processing first downlink signals of different signal waveforms of different satellites or the same satellite to obtain original downlink waveform signals, converting the original downlink waveform signals through the first downlink signals according to a preset communication waveform rule to obtain converted downlink waveform signals with unified rules, and sending the converted downlink waveform signals to a ground user side so as to keep the communication waveform with the ground user side unchanged, wherein the ground user does not need a plurality of receivers.
Description
Technical Field
The present application relates to the field of satellite communications, and in particular, to a relay forwarding method, apparatus, and medium.
Background
In recent years, with the explosive development of Internet Technology, when domestic and foreign commercial and aerospace companies lay out large-scale satellite network systems, new ground network technologies such as Internet Protocol Version 6 (ipv 6), fourth Generation Mobile Communication Technology (4 th Generation Mobile Communication Technology, 4G), fifth Generation Mobile Communication Technology (5 th Generation Mobile Communication Technology, 5G) and the like are used for reference, so as to actively plan the development of a world-wide integrated information network for the whole scene application and accelerate the deep fusion of a space-based network and a ground network. At present, the international world-wide integrated network construction adopts a development idea of 'relying on ground network and expanding space-based network', and different network architectures and technical systems are constructed aiming at application scenes such as broadband communication, data relay, mobile communication and the like. In order to realize resource sharing of a space-based network and a ground network, an integrated network interconnection center is arranged, and the interconnection and the fusion of the space-based network and the ground network are inevitable trends of future development.
However, it takes a long time for different networks and even a network integrated all over the world to really reach the level of mature, stable and standardized operation. In addition, satellite constellation systems proposed by commercial space companies at home and abroad are completely different, constellation configurations are different, communication systems are diversified, supported services are different, the space-ground integrated systems of all companies are relatively independent, and for ground users with multiple demands, different system services need to be purchased and the needs can be met by accessing different systems.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a satellite communication method that facilitates users to receive and use different satellite communication systems.
Disclosure of Invention
The purpose of the application is to provide a relay forwarding method, a relay forwarding device and a relay forwarding medium which are convenient for users to receive and use different satellite communication systems.
In order to solve the above technical problem, the present application provides a relay forwarding method, including:
receiving a first downlink signal transmitted by a satellite;
analyzing the first downlink signal to obtain an original downlink waveform signal;
converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal;
and transmitting the converted downlink waveform signal to a ground user terminal.
Preferably, in the relay forwarding method, the sending the converted downlink waveform signal to the ground user side includes:
one or more signal processing of spread spectrum, coding and modulation is carried out on the converted downlink waveform signal to obtain a second downlink signal;
and sending the second downlink signal to the ground user terminal through the power amplifier.
Preferably, in the relay forwarding method, analyzing the first downlink signal to obtain an original downlink waveform signal includes:
one or more signal processing of demodulation, decoding and de-spreading is carried out on the first downlink signal to obtain an original downlink waveform signal;
then, the method further comprises the following steps:
and storing the original downlink waveform signal to a storage unit.
Preferably, in the relay forwarding method, converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal includes:
and analyzing and recombining the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal.
Preferably, in the relay forwarding method, the receiving a first downlink signal transmitted by a satellite includes:
and receiving a first downlink signal transmitted by a satellite through a multi-channel satellite signal receiver, wherein the multi-channel satellite signal receiver is used for receiving signals with different waveforms.
Preferably, in the relay forwarding method, the method further includes:
receiving a first uplink signal sent by a ground user terminal;
analyzing the first uplink signal to obtain an original uplink waveform signal;
converting the original uplink waveform signal according to a prestored communication waveform rule of a target satellite, which is correspondingly sent by the first uplink signal, so as to obtain a converted uplink waveform signal;
and transmitting the converted uplink waveform signal to a destination satellite.
Preferably, in the relay forwarding method, analyzing the first uplink signal to obtain an original uplink waveform signal includes:
one or more signal processing of demodulation, decoding and de-spreading is carried out on the first uplink signal to obtain an original uplink waveform signal;
then, the method further comprises the following steps:
and storing the original uplink waveform signal into a storage unit.
In order to solve the above technical problem, the present application further provides a relay forwarding apparatus, including:
the first receiving module is used for receiving a first downlink signal sent by a satellite;
the first analysis module is used for analyzing the first downlink signal to obtain an original downlink waveform signal;
the conversion module is used for converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal;
and the first sending module is used for sending the converted downlink waveform signal to the ground user side.
And the storage module is used for storing the original downlink waveform signal to the storage unit.
The conversion module includes: and the conversion subunit is used for analyzing and recombining the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal.
The first receiving module comprises a multichannel receiving subunit, and is used for receiving a first downlink signal sent by a satellite through a multichannel satellite signal receiver, wherein the multichannel satellite signal receiver is used for receiving signals with different waveforms.
The second receiving module is used for receiving a first uplink signal sent by a ground user side;
the second analysis module is used for analyzing the first uplink signal to obtain an original uplink waveform signal;
the conversion module is further used for converting the original uplink waveform signal according to a prestored communication waveform rule of the target satellite, which is correspondingly sent by the first uplink signal, so as to obtain a converted uplink waveform signal;
and the second sending module is used for sending the converted uplink waveform signal to the target satellite.
The second analysis module comprises a second signal processing subunit, and is used for performing one or more signal processing of demodulation, decoding and despreading on the first uplink signal to obtain an original uplink waveform signal;
then, the method further comprises the following steps:
and the storage module is also used for storing the original uplink waveform signal to the storage unit.
In order to solve the above technical problem, the present application further provides a relay forwarding apparatus, including:
a memory for storing a computer program;
a processor, configured to implement the steps of the relay forwarding method when executing the computer program.
In order to solve the above technical problem, the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the relay forwarding method.
The relay forwarding method provided by the application comprises the following steps: receiving a first downlink signal transmitted by a satellite; analyzing the first downlink signal to obtain an original downlink waveform signal; converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal; and transmitting the converted downlink waveform signal to a ground user terminal. The method and the device receive signals with different waveforms sent by different communication satellites, obtain original downlink waveform signals by analyzing the first downlink signals, convert the original downlink waveform signals according to preset communication waveform rules to obtain converted downlink waveform signals with unified rules, and send the converted downlink waveform signals to a ground user side. The first downlink signals of different signal waveforms of different satellites or the same satellite are converted according to a preset communication waveform rule so as to keep the communication waveform with the ground user side unchanged, and the ground user does not need a plurality of receivers.
In addition, the application also provides a relay forwarding device and a medium, which correspond to the relay forwarding method and have the same effects.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings required for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained by those skilled in the art without inventive effort.
Fig. 1 is a flowchart of a relay forwarding method according to an embodiment of the present application;
fig. 2 is a flowchart of another relay forwarding method provided in the embodiment of the present application;
fig. 3 is a structural diagram of a relay forwarding apparatus according to an embodiment of the present application;
fig. 4 is a structural diagram of another relay forwarding apparatus according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide a relay forwarding method, a relay forwarding device and a relay forwarding medium.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
In recent years, with the vigorous development of internet technology, commercial space and space companies at home and abroad draw attention to new generation ground network technologies such as IPv6, 4G/5G and the like when laying out large-scale satellite network systems, actively strive to develop a world-wide integrated information network for full-scene application, and accelerate the deep fusion of a space-based network and a ground network. At present, the international world-wide integrated network construction adopts a development idea of 'relying on ground network and expanding space-based network', and different network architectures and technical systems are constructed aiming at application scenes such as broadband communication, data relay, mobile communication and the like.
The network architecture facing broadband communication is mainly proposed by organizations such as International Telecommunication Union (ITU), european Telecommunication Standards Institute (ETSI), and the like, and is mainly oriented to a broadband satellite multimedia system; the network architecture facing Data relay is mainly proposed by international organizations such as the spatial Data system Committee (coherent Committee for Space Data Systems, CCSDS) and the like, and is mainly oriented to a spatial information network; the network architecture facing mobile communication realizes mobile communication service which is not limited by ground space and climate conditions by virtue of the characteristic of wide coverage of a satellite network. In order to realize resource sharing of a space-based network and a ground network, an integrated network interconnection center is arranged, and interconnection, intercommunication and fusion of the space-based network and the ground network are inevitable trends of future development.
However, it takes a long time for the above three different networks and even the integrated network to really reach the level of mature, stable and standardized operation. In addition, satellite constellation systems proposed by commercial space companies at home and abroad are completely different, constellation configurations are different, communication systems are diversified, supported services are different, the space-ground integrated systems of all companies are relatively independent, and for ground users with multiple demands, different system services need to be purchased and the needs can be met by accessing different systems.
In order to solve the above technical problem, the present application provides a relay forwarding method, as shown in fig. 1, including:
s11: receiving a first downlink signal transmitted by a satellite;
s12: analyzing the first downlink signal to obtain an original downlink waveform signal;
s13: converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal;
s14: and transmitting the converted downlink waveform signal to a ground user terminal.
In the embodiment, the receiving of the first downlink signal sent by the satellite does not limit the frequency waveform of the first downlink signal, and the signals of different systems are received in a self-adaptive manner according to different communication systems of the satellite; after receiving the first downlink signal, the first downlink signal is analyzed, and when the satellite transmits communication information, different forms of signal processing are usually performed on the first downlink signal for the purpose of data security or stable propagation and improving the anti-interference capability.
Converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal; the preset communication waveform rule mentioned in this embodiment refers to a general rule preset according to a requirement, and according to the preset communication waveform rule, the original downlink waveform signal is converted by parsing, recombining, and the like, so that the original downlink waveform signal meets the requirement of the preset communication waveform rule, and a converted downlink waveform signal is obtained, and the converted downlink waveform signal includes communication information stored in the original downlink waveform signal and is expressed by the preset communication waveform rule.
Preferably, the method further comprises the following steps:
receiving communication updating information sent by a satellite;
and receiving the first downlink signal transmitted by the satellite according to the communication updating information.
Under the condition of upgrading the satellite communication system software, normal communication with the satellite is still realized, and the communication waveform with the user side is not changed, so that the terminal of the ground user does not need to be replaced no matter how the satellite system waveform changes.
The converted downlink waveform signal is sent to a ground user end, the converted downlink waveform signal can be directly sent to the ground user end, or the converted downlink waveform signal can be subjected to signal processing and then sent to the ground user end, and the method can be set according to actual requirements.
The relay forwarding method provided by the embodiment of the application comprises the following steps: receiving a first downlink signal transmitted by a satellite; analyzing the first downlink signal to obtain an original downlink waveform signal; converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal; and transmitting the converted downlink waveform signal to a ground user terminal. The method and the device receive signals with different waveforms sent by different communication satellites, obtain original downlink waveform signals by analyzing the first downlink signals, convert the original downlink waveform signals according to a preset communication waveform rule to obtain converted downlink waveform signals with a unified rule, and send the converted downlink waveform signals to a ground user side. The first downlink signals of different signal waveforms of different satellites or the same satellite are converted according to a preset communication waveform rule so as to keep the communication waveform with a ground user side unchanged, and the ground user does not need a plurality of receivers.
According to the above embodiment, the method for relaying and forwarding, which transmits the converted downlink waveform signal to the ground user side, includes:
one or more signal processing of spread spectrum, coding and modulation is carried out on the converted downlink waveform signal to obtain a second downlink signal;
and sending the second downlink signal to the ground user terminal through the power amplifier.
Spread spectrum is a technique for improving transmission performance using information processing. The purpose and function of this technology is to perform spectrum broadening processing on the transmitted signal before transmitting information, so as to obtain stronger anti-interference capability and higher transmission rate by using the wide spectrum, and meanwhile, since different code patterns can be used to carry information of different users on the same frequency band, the spectrum spreading also improves the reuse rate of the frequency band.
Encoding is the process of converting information from one form or format to another, and is also referred to as code or simply encoding of a computer programming language. Characters, numbers or other objects are coded into numbers by a predetermined method, or information and data are converted into predetermined electric pulse signals.
In digital communication technology, in order to effectively transmit information, a low-frequency signal is generally loaded on a high-frequency signal, the original low-frequency signal is called a modulation signal, and a carrier wave after the signal is loaded becomes a modulated wave.
In this embodiment, according to specific needs, the converted downlink waveform signal is subjected to one or more signal processing of spreading, coding, and modulating to obtain a second downlink signal; and sending the second downlink signal to a ground user end through a power amplifier to improve the stability, the anti-interference performance and the like of the communication signal.
According to the above embodiment, analyzing the first downlink signal to obtain an original downlink waveform signal includes:
one or more signal processing of demodulation, decoding and de-spreading is carried out on the first downlink signal to obtain an original downlink waveform signal;
then, the method further comprises the following steps:
and storing the original downlink waveform signal to a storage unit.
Demodulation is the inverse of modulation and the process of recovering a message from a modulated signal carrying the message. In various information transmission or processing systems, a transmitting end modulates a carrier with a message to be transmitted to generate a signal carrying the message, and a receiving end must recover the transmitted message to be used, which is demodulation.
Decoding is the inverse of encoding, while removing noise mixed into the bit stream during propagation. The process of translating a word into a set of numbers using a translation table or a series of signals representing a certain item of information into a word using a translation table is called decoding.
Despreading is the reconstruction of information over the original bandwidth of the signal. Despreading is the inverse process of spreading to realize signal recovery. The purpose is to restore the signal with widened frequency band to the original narrow-band signal to complete the communication task.
After receiving the first downlink signal, performing one or more signal processing of demodulation, decoding and despreading on the first downlink signal to obtain an original downlink waveform signal. In order to prevent communication information from being lost, the original downstream waveform signal is stored in a storage unit. If the original downlink waveform signal is not sent to the ground user terminal, the stored original downlink waveform signal can be called from the storage unit and sent to the ground user terminal again.
According to the above embodiment, receiving a first downlink signal transmitted by a satellite includes:
and receiving a first downlink signal transmitted by a satellite through a multichannel satellite signal receiver, wherein the multichannel satellite signal receiver is used for receiving signals with different waveforms.
The preset multi-channel satellite signal receiver is used for receiving downlink signals with different waveforms sent by different satellites or downlink signals with different waveforms sent by the same satellite.
According to the foregoing embodiment, this embodiment provides a preferable scheme, that is, a relay forwarding method, as shown in fig. 2, further including:
s21: receiving a first uplink signal sent by a ground user side;
s22: analyzing the first uplink signal to obtain an original uplink waveform signal;
s23: converting the original uplink waveform signal according to a prestored communication waveform rule of a target satellite, which is correspondingly sent by the first uplink signal, so as to obtain a converted uplink waveform signal;
s24: and transmitting the converted uplink waveform signal to a destination satellite.
In this embodiment, a first uplink signal sent by a ground user end is received, where the received first uplink signal sent by the ground user end may be based on the same communication waveform rule or different communication waveform rules, and the first uplink signal is analyzed to obtain an original uplink waveform signal, and the original uplink waveform signal is analyzed, and correspondingly to the above embodiment, one or more signal processing of demodulation, decoding, and despreading is performed on the first uplink signal to obtain an original uplink waveform signal; and storing the original uplink waveform signal into a storage unit. To avoid loss of communication information.
According to the pre-stored communication waveform rule of the target satellite, which is sent correspondingly to the first uplink signal, the original uplink waveform signal is converted to obtain a converted uplink waveform signal, the pre-stored communication waveform rule of the target satellite mentioned in this embodiment refers to the target satellite, which is sent by the current first uplink information, and a pre-stored receivable communication waveform rule, the original uplink waveform signal is analyzed and recombined according to the pre-stored communication waveform rule to obtain a converted uplink waveform signal, and the converted uplink waveform signal is sent to the target satellite.
According to the scheme provided by the embodiment, the original uplink waveform signal is obtained by analyzing the uplink signals with different waveforms sent by the ground user side, the original uplink waveform signal is analyzed and recombined according to the pre-stored receivable communication waveform rule of the target satellite sent by the first uplink signal and the pre-stored receivable communication waveform rule to obtain the converted uplink waveform signal, and the converted uplink waveform signal is sent to the target satellite. So that the satellite can conveniently receive and convert the uplink waveform signals.
Preferably, the transmitting the converted uplink waveform signal to the destination satellite includes:
processing the converted uplink waveform signal by one or more of spreading, coding and modulating to obtain a second uplink signal;
and sending the second uplink signal to the ground user terminal through the power amplifier.
In the foregoing embodiment, a detailed description is given of a relay forwarding method, and the present application also provides an embodiment corresponding to a relay forwarding apparatus. It should be noted that the present application describes the embodiments of the apparatus portion from two perspectives, one from the perspective of the function module and the other from the perspective of the hardware.
Based on the angle of the functional module, fig. 3 is a structural diagram of a relay forwarding device provided in the embodiment of the present application, and as shown in fig. 3, a relay forwarding device includes:
a first receiving module 31, configured to receive a first downlink signal sent by a satellite;
a first analyzing module 32, configured to analyze the first downlink signal to obtain an original downlink waveform signal;
the conversion module 33 is configured to convert the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal;
and the first sending module 34 is configured to send the converted downlink waveform signal to the terrestrial user terminal.
Specifically, the first receiving module 31 receives a first downlink signal transmitted by a satellite; the first analyzing module 32 analyzes the first downlink signal to obtain an original downlink waveform signal; the conversion module 33 converts the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal; the first transmitting module 34 transmits the converted downlink waveform signal to the ground user terminal. The method and the device receive signals with different waveforms sent by different communication satellites, obtain original downlink waveform signals by analyzing the first downlink signals, convert the original downlink waveform signals according to preset communication waveform rules to obtain converted downlink waveform signals with unified rules, and send the converted downlink waveform signals to a ground user side. The first downlink signals of different signal waveforms of different satellites or the same satellite are converted according to a preset communication waveform rule so as to keep the communication waveform with the ground user side unchanged, and the ground user does not need a plurality of receivers.
The device still includes:
the first sending module comprises a first conversion subunit, and is used for performing one or more signal processing of spreading, coding and modulating on the converted downlink waveform signal to obtain a second downlink signal;
and the first transmitting subunit is configured to send the second downlink signal to the ground ue through the power amplifier.
The first analysis module comprises a first signal processing subunit, which is used for performing one or more signal processing of demodulation, decoding and despreading on the first downlink signal to obtain an original downlink waveform signal;
then, the method further comprises the following steps:
and the storage module is used for storing the original downlink waveform signal to the storage unit.
The conversion module includes: and the conversion subunit is used for analyzing and recombining the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal.
The first receiving module comprises a multichannel receiving subunit, and is used for receiving a first downlink signal sent by a satellite through a multichannel satellite signal receiver, wherein the multichannel satellite signal receiver is used for receiving signals with different waveforms.
The second receiving module is used for receiving a first uplink signal sent by a ground user side;
the second analysis module is used for analyzing the first uplink signal to obtain an original uplink waveform signal;
the conversion module is further used for converting the original uplink waveform signal according to a prestored communication waveform rule of the target satellite, which is correspondingly sent by the first uplink signal, so as to obtain a converted uplink waveform signal;
and the second sending module is used for sending the converted uplink waveform signal to the target satellite.
The second analysis module comprises a second signal processing subunit, and is used for performing one or more signal processing of demodulation, decoding and despreading on the first uplink signal to obtain an original uplink waveform signal;
then, the method further comprises the following steps:
and the storage module is also used for storing the original uplink waveform signal to the storage unit.
Since the embodiment of the apparatus portion and the embodiment of the method portion correspond to each other, please refer to the description of the embodiment of the method portion for the embodiment of the apparatus portion, and details are not repeated here.
Fig. 4 is a structural diagram of another relay forwarding device provided in an embodiment of the present application, and as shown in fig. 4, the relay forwarding device includes: a memory 40 for storing a computer program;
and a processor 41, configured to implement the steps of the method for acquiring the user operation habit information according to the above-described embodiment (relay forwarding method) when executing the computer program.
The relay forwarding device provided in this embodiment may include, but is not limited to, a smart phone, a tablet computer, a notebook computer, or a desktop computer.
Processor 41 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so forth. The Processor 41 may be implemented in hardware using at least one of a Digital Signal Processor (DSP), a Field-Programmable Gate Array (FPGA), and a Programmable Logic Array (PLA). The processor 41 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 41 may be integrated with a Graphics Processing Unit (GPU) which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, processor 41 may also include an Artificial Intelligence (AI) processor for processing computational operations related to machine learning.
Memory 40 may include one or more computer-readable storage media, which may be non-transitory. Memory 40 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 40 is at least used for storing a computer program 401, wherein after being loaded and executed by the processor 41, the computer program can implement the relevant steps of the relay forwarding method disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 40 may also include an operating system 402, data 403, and the like, and the storage manner may be a transient storage or a permanent storage. Operating system 402 may include, among other things, windows, unix, linux, and the like. Data 403 may include, but is not limited to, data involved in implementing a relay forwarding method, and the like.
In some embodiments, the relay device may further include a display 42, an input/output interface 43, a communication interface 44, a power supply 45, and a communication bus 46.
Those skilled in the art will appreciate that the configuration shown in fig. 4 does not constitute a limitation of a relay forwarding device and may include more or fewer components than those shown.
The relay forwarding device provided by the embodiment of the application comprises a memory and a processor, wherein when the processor executes a program stored in the memory, the following method can be realized: the relay forwarding method comprises the following steps: receiving a first downlink signal transmitted by a satellite; analyzing the first downlink signal to obtain an original downlink waveform signal; converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal; and transmitting the converted downlink waveform signal to a ground user terminal. The method and the device receive signals with different waveforms sent by different communication satellites, obtain original downlink waveform signals by analyzing the first downlink signals, convert the original downlink waveform signals according to preset communication waveform rules to obtain converted downlink waveform signals with unified rules, and send the converted downlink waveform signals to a ground user side. The first downlink signals of different signal waveforms of different satellites or the same satellite are converted according to a preset communication waveform rule so as to keep the communication waveform with the ground user side unchanged, and the ground user does not need a plurality of receivers.
Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps as described in the above embodiments of the relay forwarding method.
It is understood that, if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application may be substantially or partially implemented in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods of the embodiments of the present application, or all or part of the technical solutions. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The present embodiment provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of: the relay forwarding method comprises the following steps: receiving a first downlink signal transmitted by a satellite; analyzing the first downlink signal to obtain an original downlink waveform signal; converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal; and transmitting the converted downlink waveform signal to a ground user terminal. The method and the device receive signals with different waveforms sent by different communication satellites, obtain original downlink waveform signals by analyzing the first downlink signals, convert the original downlink waveform signals according to preset communication waveform rules to obtain converted downlink waveform signals with unified rules, and send the converted downlink waveform signals to a ground user side. The first downlink signals of different signal waveforms of different satellites or the same satellite are converted according to a preset communication waveform rule so as to keep the communication waveform with a ground user side unchanged, and the ground user does not need a plurality of receivers.
The relay forwarding method, apparatus and medium provided in the present application are introduced in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simple, and the relevant points can be referred to the description of the method part. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A relay forwarding method, comprising:
receiving a first downlink signal transmitted by a satellite;
analyzing the first downlink signal to obtain an original downlink waveform signal;
converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal;
and sending the converted downlink waveform signal to a ground user terminal.
2. The relay forwarding method according to claim 1, wherein the transmitting the converted downstream waveform signal to a ground user side comprises:
performing one or more signal processing of spreading, coding and modulating on the converted downlink waveform signal to obtain a second downlink signal;
and sending the second downlink signal to a ground user terminal through a power amplifier.
3. The relay forwarding method according to claim 1, wherein the analyzing the first downlink signal to obtain an original downlink waveform signal comprises:
one or more signal processing of demodulation, decoding and de-spreading is carried out on the first downlink signal to obtain an original downlink waveform signal;
then, the method further comprises the following steps:
and storing the original downlink waveform signal to a storage unit.
4. The relay forwarding method according to claim 1, wherein the converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal comprises:
and analyzing and recombining the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal.
5. The relay forwarding method of claim 1, wherein the receiving a first downlink signal transmitted by a satellite comprises:
receiving a first downlink signal transmitted by a satellite through a multichannel satellite signal receiver, wherein the multichannel satellite signal receiver is used for receiving signals with different waveforms.
6. The relay forwarding method of claim 1, further comprising:
receiving a first uplink signal sent by the ground user side;
analyzing the first uplink signal to obtain an original uplink waveform signal;
converting the original uplink waveform signal according to a prestored communication waveform rule of a target satellite, which is correspondingly sent by the first uplink signal, so as to obtain a converted uplink waveform signal;
and sending the converted uplink waveform signal to the target satellite.
7. The relay forwarding method according to claim 6, wherein the analyzing the first uplink signal to obtain an original uplink waveform signal comprises:
one or more signal processing of demodulation, decoding and de-spreading is carried out on the first uplink signal to obtain an original uplink waveform signal;
then, the method also comprises the following steps:
and storing the original uplink waveform signal to a storage unit.
8. A relay forwarding apparatus, comprising:
the first receiving module is used for receiving a first downlink signal sent by a satellite;
the first analysis module is used for analyzing the first downlink signal to obtain an original downlink waveform signal;
the conversion module is used for converting the original downlink waveform signal according to a preset communication waveform rule to obtain a converted downlink waveform signal;
and the first sending module is used for sending the converted downlink waveform signal to a ground user terminal.
9. A relay forwarding apparatus, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the relay forwarding method according to any of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the relay forwarding method according to any one of claims 1 to 7.
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