CN114641029A - Transmitting method and system based on satellite communication signal device - Google Patents
Transmitting method and system based on satellite communication signal device Download PDFInfo
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- CN114641029A CN114641029A CN202210532099.4A CN202210532099A CN114641029A CN 114641029 A CN114641029 A CN 114641029A CN 202210532099 A CN202210532099 A CN 202210532099A CN 114641029 A CN114641029 A CN 114641029A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Abstract
The invention provides a transmitting method and a transmitting system based on a satellite communication signal device, which are applied to the field of transmitting of the signal device; acquiring a numerical value of channel data which needs to be communicated currently; judging whether the numerical value of the channel data is larger than the maximum numerical value which can be accommodated by the communication channel; if so, correspondingly adjusting the maximum numerical value which can be accommodated by the communication channel according to the first specific value that the numerical value of the channel data is greater than the maximum numerical value which can be accommodated by the communication channel; acquiring the highest transmission rate of a communication channel; judging whether the highest transmission rate is greater than a preset average rate or not; if so, expanding the maximum value which can be accommodated by the communication channel according to the first specific value, and correspondingly reducing the highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate; the invention expands the communication channel transmission rate of the satellite communication signal device by adopting binary data, ensures to meet the huge requirement of communication bandwidth and stabilizes the network performance.
Description
Technical Field
The present invention relates to the field of signaling devices, and more particularly, to a signaling method and system based on a satellite communication signaling device.
Background
As a space part of a satellite communication system, a communication satellite is one of the earliest and most widely used satellites in the world, and communication satellites are transmitted in many countries such as the united states, russia, and china. The communication satellite is used as a radio communication relay station and is mainly used for forwarding radio signals so as to realize communication between satellite communication earth stations including mobile phone terminals or between the earth stations and a spacecraft.
For example, CN202010458669.0 discloses a communication system for small communication satellites, arranged on a satellite platform of the communication satellite, comprising an antenna subsystem, a transceiver and a memory module. The antenna subsystem comprises a transceiving phased array antenna and a reflector antenna; the transceiver comprises a frequency conversion module, a frequency source module, a digital processing module and a power supply module and is used for realizing the processing and the forwarding of signals; in addition, the transceiver can also realize the broadcasting of the telemetering data by reading the telemetering data stored in the storage module. The communication system has five operating modes, including: the system comprises a broadcast mode, a transparent forwarding mode, an engineering telemetry data transmission mode, an upper injection mode and a measurement and control mode, and can support the communication speed of 10kbps to 100 Mbps.
However, in the use process of such a satellite communication system, due to the increase of the bandwidth demand, the satellite communication system cannot temporarily meet the huge demand of the communication bandwidth, and the network performance of the transmission through the satellite communication is reduced.
Disclosure of Invention
The invention aims to solve the problems that a satellite system cannot meet the huge requirement of communication bandwidth and the network performance is reduced due to phase change, and provides a transmitting method and a transmitting system based on a satellite communication signal device.
The invention adopts the following technical means for solving the technical problems:
the invention provides a transmitting method based on a satellite communication signal device, which comprises the following steps:
acquiring a numerical value of channel data which is currently communicated through a receiving end of a satellite signal device;
judging whether the numerical value of the channel data is larger than the maximum numerical value which can be accommodated by a communication channel;
if so, correspondingly adjusting the maximum numerical value which can be accommodated by the communication channel by adopting binary system according to a first specific value which is larger than the maximum numerical value which can be accommodated by the communication channel;
acquiring the highest transmission rate of the communication channel;
judging whether the highest transmission rate is greater than a preset average rate or not;
if so, expanding the maximum value which can be accommodated by the communication channel according to the first specific value, and correspondingly reducing the highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate.
Further, the step of obtaining the value of the channel data currently communicated through the receiving end of the satellite signal device includes:
acquiring the data type of the communication data;
judging whether the data type is matched with preset transmission data or not;
and if so, decomposing the communication data into node data, and transmitting the node data through a corresponding communication channel.
Further, before the step of correspondingly adjusting the maximum numerical value that can be accommodated by the communication channel by using binarization according to the first specific value that the numerical value of the channel data is greater than the maximum numerical value that can be accommodated by the communication channel, the method includes:
acquiring a signal feedback mode of a satellite receiving end for receiving the channel data; the signal feedback mode comprises parallel communication and serial communication;
judging whether the signal feedback mode is matched with a preset communication mode or not;
and if so, allowing the bandwidth signal to be transmitted through a communication channel.
Further, after the step of obtaining the value of the channel data currently communicated through the receiving end of the satellite signal device, the method includes:
acquiring the communication demand of a signal sending point which needs to communicate;
judging whether the communication demand is greater than a communication processing amount preset by a receiving end of a satellite signal device;
if yes, a satellite receiving branch end for receiving communication signals at a fixed point is independently set for the signal transmitting point needing to communicate.
Further, before the step of obtaining the highest transmission rate of the communication channel, the method includes:
acquiring a communication mode of a signal sending point required to communicate;
judging whether the communication mode accords with a communication mode preset by a receiving end of a satellite signal device;
if not, judging that the signal sending point needing to be communicated cannot be transmitted to a receiving end of the satellite signal device through a communication channel;
the method comprises the steps of establishing a signal sending point which has a preset communication mode and can send at a fixed point according to communication data which needs to be communicated by the signal sending point, and sending the communication data which needs to be communicated to a receiving end of the satellite signal device through the signal sending point which can send at the fixed point.
Further, the step of acquiring a communication method of a signal transmission point which needs to communicate includes:
acquiring a signal frequency band of a signal transmitting point required to communicate;
judging whether the signal frequency band is matched with a communication frequency band of a receiving end of a satellite signal device;
if not, the signal frequency band of the signal sending point needing to be communicated is correspondingly adjusted according to the adaptive communication frequency band of the receiving end of the satellite signal device.
Further, the step of correspondingly adjusting the maximum value that can be accommodated by the communication channel by binarization according to the first specific value that the value of the channel data is greater than the maximum value that can be accommodated by the communication channel includes:
performing binarization processing on a first specific value of the channel data, which is larger than the maximum value capable of being accommodated by the communication channel, to obtain a binarized second specific value;
performing serial-parallel replacement on the binary second specific value to obtain communication subdata;
and carrying out frequency conversion output on the communication subdata and then reallocating the communication subdata to the communication channel.
Further, the step of expanding the maximum value that the communication channel can accommodate according to the first specific value and correspondingly reducing the highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate includes:
acquiring a baseband signal of the communication channel;
judging whether the baseband signal is matched with a binarized communication channel or not;
if not, the baseband signal is subjected to up-conversion and then orthogonal frequency division multiplexing data is output so as to adapt to the binarized communication channel.
Further, the step of obtaining the highest transmission rate of the communication channel includes:
acquiring a communication character code of the communication channel;
judging whether the character code has a preset synchronous byte or not;
if yes, judging the communication channel to be synchronous communication; if not, the communication channel is judged to be asynchronous communication.
The invention also provides a transmitting system based on the satellite communication signal device, which comprises:
the first acquisition module is used for acquiring the numerical value of channel data which is currently communicated through a receiving end of the satellite signal device;
the first judgment module is used for judging whether the numerical value of the channel data is larger than the maximum numerical value which can be accommodated by a communication channel;
a first execution module, configured to, if yes, correspondingly adjust, by binarization, a maximum numerical value that can be accommodated by the communication channel according to a first specific value that a numerical value of the channel data is greater than the maximum numerical value that can be accommodated by the communication channel;
the second acquisition module is used for acquiring the highest transmission rate of the communication channel;
the second judging module is used for judging whether the highest transmission rate is greater than a preset average rate or not;
and if so, expanding the maximum value which can be accommodated by the communication channel according to the first specific value, and correspondingly reducing the highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate.
The invention provides a transmitting method and a transmitting system based on a satellite communication signal device, which have the following beneficial effects:
according to the invention, the communication data total value needing to be communicated is obtained in real time, whether the communication transmission channel can accommodate the communication data total value is judged, and then the maximum value which can be accommodated by a single communication channel is adjusted in a binary mode according to the communication data total value, so that the transmission rate of the single communication channel is correspondingly reduced, the huge requirement of communication bandwidth is ensured to be met, and the network performance is stabilized.
Drawings
FIG. 1 is a flow chart illustrating a method for signaling a satellite based communication signal device according to an embodiment of the present invention;
fig. 2 is a block diagram of a signaling system based on a satellite communication signal device according to an embodiment of the present invention.
Detailed Description
It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be considered as limiting thereof, since the objects, features and advantages thereof will be further described with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a method for signaling a satellite-based communication signal device according to an embodiment of the invention includes the following steps:
s1: acquiring a numerical value of channel data which is currently communicated through a receiving end of a satellite signal device;
s2: judging whether the numerical value of the channel data is larger than the maximum numerical value which can be accommodated by a communication channel;
s3: if so, correspondingly adjusting the maximum numerical value which can be accommodated by the communication channel by adopting binary system according to a first specific value which is larger than the maximum numerical value which can be accommodated by the communication channel;
s4: acquiring the highest transmission rate of the communication channel;
s5: judging whether the highest transmission rate is greater than a preset average rate or not;
s6: if so, expanding the maximum value which can be accommodated by the communication channel according to the first specific value, and correspondingly reducing the highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate.
In this embodiment, the system obtains all values that need to be fed back by bandwidth signals through the satellite communication signal device at present, and determines whether the values can be accommodated at one time through a communication channel preset by the satellite communication signal device, if the values cannot be accommodated at one time, the system correspondingly adjusts the once-accommodated values of the single communication channel according to the fact that the values exceed the specific values that can be accommodated at one time by the communication channel; for example, the system acquires that all values required to be fed back by bandwidth signals through the satellite communication signal device are 350hz, a preset communication channel of the satellite communication signal device can accommodate the values for 50s at one time, and according to a preset condition that the communication channel can transmit 5hz values every 1s, the specific default value which can be accommodated for one time and is 250hz of the communication channel is known, that is, the remaining 100hz cannot be transmitted through the communication channel, and at this time, the transmission rate of the communication channel needs to be reduced to enlarge the maximum value which can be accommodated by the communication channel; the default rate of the communication channel per minute transmission is preset by the system to be 3hz, the highest transmission rate is 5hz, the preset average rate is 1hz per minute transmission, the 3hz is reduced to be 2hz, the specific value which can be accommodated by the communication channel at one time can be correspondingly increased to be 100hz, namely, the communication channel is used for feeding back 350hz of all values which need to be fed back by the satellite communication signal device at present at one time; for example, the system acquires that all values that need to be fed back by bandwidth signals through a satellite communication signal device are 500hz, the specific value that can be contained at one time by the communication channel default is 250hz according to the preset condition that 5hz values can be transmitted every 1s through the known communication channel, that is, the communication channel needs to be expanded by 250hz to contain all values of 500hz into the communication channel at one time, even if the transmission rate 3hz of the communication channel is reduced to the preset average rate 1hz, the communication channel can only contain 450hz, and the value of 500hz cannot be met, that is, transmission cannot be completed through the communication channel that can be contained at one time.
It should be noted that hz is the channel bandwidth (hertz) and s is the average power of the transmitted signal in the channel.
In this embodiment, the step S1 of obtaining the value of the channel data currently communicated through the receiving end of the satellite signaling apparatus includes:
s11: acquiring the data type of the communication data;
s12: judging whether the data type is matched with preset transmission data or not;
s13: and if so, decomposing the communication data into node data, and transmitting the node data through a corresponding communication channel.
In the embodiment, the system judges whether the data type needing to be communicated can be directly transmitted or not according to the communicable data type preset by the system by acquiring the data type needing to be subjected to bandwidth signal feedback through the satellite communication signal device; for example, the data type acquired by the system and needing to be subjected to bandwidth signal feedback through a satellite communication signal device is analog communication, while the data type of communication data preset by the system is digital communication and data communication, that is, the data type of the analog communication cannot be decomposed into node data to accelerate the communication transmission rate; for example, the data type acquired by the system and requiring bandwidth signal feedback through the satellite communication signal device is digital communication, and the data type of the communication data preset in the known system is digital communication and data communication, that is, the data type of the digital communication can be decomposed into node data to speed up the communication transmission rate.
It should be noted that, when the data volume of the communication data is too large, the loading efficiency of each data point is low, and at this time, before data transmission, a decomposable data type is decomposed into node data, and the node data is input into the communication channel through each different node data, so that the transmission efficiency of the communication channel is effectively increased.
In this embodiment, before the step S3 of correspondingly adjusting the maximum numerical value that can be accommodated by the communication channel by using binarization according to the numerical value of the channel data being greater than the first specific value of the maximum numerical value that can be accommodated by the communication channel, the method includes:
s301: acquiring a signal feedback mode of a receiving end of a satellite signal device for receiving the channel data; the signal feedback mode comprises parallel communication and serial communication;
s302: judging whether the signal feedback mode is matched with a preset communication mode or not;
s303: and if so, allowing the bandwidth signal to be transmitted through a communication channel.
In this embodiment, the system determines whether the receiving end of the satellite signal device can adapt to the signal feedback mode of the communication signal according to the signal feedback mode of the receiving end of the satellite signal device by acquiring the signal feedback mode of the receiving end of the satellite signal device for receiving channel data; for example, the signal feedback mode of the system for acquiring the satellite signal device receiving end is simplex communication, and the communication mode preset by the system is half-duplex communication and full-duplex communication, that is, the satellite signal device receiving end cannot feedback the communication signal after receiving the communication signal; for example, the signal feedback mode for the system to acquire the satellite signal device receiving end is half duplex communication, and the communication mode preset in the known system is half duplex communication and full duplex communication, that is, the satellite signal device receiving end can feedback the communication signal after receiving the communication signal.
It should be noted that simplex communication means that at any moment, signals can only be sent from one of the two communicating parties to the other, and transmitted unidirectionally on a channel, in this way, the functions of the two end nodes of the channel are fixed, and a sender can only send data and cannot receive data; half-duplex communication means that both communication parties can perform data transmission and reception, but cannot have both functions at the same time. At the same time, signals can only be sent from one end to the other end, and if the signal transmission direction needs to be changed, line switching needs to be carried out; full duplex communication means that both communication parties can send and receive data at any time; two channels are used in full duplex communication, one for transmitting data and one for receiving data.
In this embodiment, after the step S1 of obtaining the value of the channel data currently communicated through the receiving end of the satellite signaling device, the method includes:
s101: acquiring the communication demand of a signal sending point which needs to communicate;
s102: judging whether the communication demand is greater than communication processing capacity preset by a receiving end of the satellite signal device;
s103: if yes, a satellite receiving branch end for receiving communication signals at a fixed point is independently set for the signal transmitting point needing to communicate.
In this embodiment, the system determines whether the communication throughput preset at the receiving end of the satellite signal device can process the communication demand of the signal sending point required to communicate by acquiring the communication demand of the signal sending point required to communicate according to the communication demand; for example, the system acquires that the communication demand of the signal transmitting point required to communicate is 300hz, and the communication processing capacity preset at the receiving end of the satellite signal device is 250hz, that is, at this time, a satellite receiving branch for receiving the communication signal at a fixed point needs to be separately set up for the signal transmitting point required to communicate, so as to process the remaining communication demand of 50 hz; for example, the communication demand of the system for acquiring the signal transmitting point required to communicate is 200hz, and when the communication processing amount preset by the receiving end of the satellite signal device is known to be 250hz, that is, at this time, a satellite receiving branch for receiving the communication signal at a fixed point does not need to be set up for the signal transmitting point required to communicate separately.
In this embodiment, before the step S4 of obtaining the highest transmission rate of the communication channel, the method includes:
s401: acquiring a communication mode of a signal sending point required to communicate;
s402: judging whether the communication mode accords with a communication mode preset by a receiving end of a satellite signal device;
s403: if not, judging that the signal sending point needing to be communicated cannot be transmitted to a receiving end of the satellite signal device through a communication channel;
s404: the method comprises the steps of establishing a signal sending point which has a preset communication mode and can send at a fixed point according to communication data which needs to be communicated by the signal sending point, and sending the communication data which needs to be communicated to a receiving end of the satellite signal device through the signal sending point which can send at the fixed point.
In this embodiment, the system determines whether the receiving end of the satellite signal device can receive the communication signal transmitted from the communication channel according to the communication mode of the receiving end of the satellite signal device by acquiring the communication mode of the signal transmitting point which needs to communicate; for example, the system acquires serial communication mode of a signal sending point which needs to communicate, and the preset communication mode of a receiving end of a satellite signal device is parallel communication, that is, the communication mode of the signal sending point which needs to communicate does not conform to the preset communication mode of the receiving end of the satellite signal device, and at this moment, a signal sending point which has parallel communication and can send at a fixed point is needed to be established according to communication data which needs to communicate by the signal sending point, and the communication data which needs to communicate is sent to the receiving end of the satellite signal device through the signal sending point which can send at the fixed point; for example, the communication mode of the signal sending point which needs to be communicated is serial communication, and when the communication mode preset by the receiving end of the satellite signal device is known to be parallel communication, that is, the communication mode of the signal sending point which needs to be communicated conforms to the communication mode preset by the receiving end of the satellite signal device, the communication signal can be normally transmitted through the communication channel.
In this embodiment, the step S401 of acquiring the communication method of the signal transmission point which needs to perform communication includes:
s4011: acquiring a signal frequency band of a signal transmitting point required to communicate;
s4012: judging whether the signal frequency band is matched with a communication frequency band of a receiving end of a satellite signal device;
s4013: if not, the signal frequency band of the signal sending point needing to be communicated is correspondingly adjusted according to the adaptive communication frequency band of the receiving end of the satellite signal device.
In this embodiment, the system determines whether the receiving end of the satellite signal device can match the signal frequency band of the signal transmitting point required to communicate according to the communication frequency band of the receiving end of the satellite signal device by acquiring the signal frequency band of the signal transmitting point required to communicate; for example, the signal frequency band of the signal transmitting point required to communicate is 1-10gz, and the communication frequency band preset by the receiving end of the satellite signal device is 10-15gz, that is, the signal frequency band of the signal transmitting point required to communicate cannot match the communication frequency band of the receiving end of the satellite signal device, at this time, the signal frequency band of the signal transmitting point required to communicate needs to be correspondingly adjusted according to the adaptive communication frequency band of the receiving end of the satellite signal device, that is, the signal transmitting point required to communicate is close to 10gz from 1-10gz, and the communication frequency band of the receiving end of the satellite signal device is close to 10gz from 10-15 gz; for example, the signal frequency band of the signal transmitting point which needs to be communicated is 1-15gz, and the communication frequency band preset at the receiving end of the known satellite signal device is 10-15gz, that is, the signal frequency band of the signal transmitting point which needs to be communicated can be matched with the communication frequency band of the receiving end of the satellite signal device, and the signal frequency band of the signal transmitting point which needs to be communicated does not need to be correspondingly adjusted according to the adaptive communication frequency band of the receiving end of the satellite signal device.
In this embodiment, the step S3 of correspondingly adjusting the maximum value that can be accommodated by the communication channel by binarization according to the value of the channel data being greater than the first specific value of the maximum value that can be accommodated by the communication channel includes:
s31: performing binarization processing on a first specific value of the channel data, wherein the numerical value of the channel data is larger than the maximum numerical value which can be accommodated by the communication channel, so as to obtain a binarized second specific value;
s32: performing serial-parallel replacement on the binary second specific value to obtain communication subdata;
s33: and carrying out frequency conversion output on the communication subdata and then reallocating the communication subdata to the communication channel.
In this embodiment, the first specific value is binarized through an original signal, the obtained binary data is subjected to serial-to-parallel conversion, and serial data is converted into X-way parallel data; encoding and mapping the X-path parallel data into Y pieces of communication subdata; and carrying out fast Fourier transform on the communication subdata subjected to coding mapping, converting the communication subdata in a frequency domain into real subdata in a time domain, adding a cyclic prefix in front of the calculated conversion sample value to form orthogonal frequency division multiplexing data subjected to cyclic extension, carrying out parallel-serial conversion on the orthogonal frequency division multiplexing data, carrying out D/A frequency conversion in a serial mode, and outputting the data to a communication channel again for transmission.
In this embodiment, the step S6 of expanding the maximum value that the communication channel can accommodate according to the first specific value and correspondingly decreasing the highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate includes:
s61: acquiring a baseband signal of the communication channel;
s62: judging whether the baseband signal is matched with a binarized communication channel or not;
s63: if not, the baseband signal is subjected to up-conversion and then orthogonal frequency division multiplexing data is output so as to adapt to the binarized communication channel.
In this embodiment, the system adopts a specific synchronization pilot sequence to avoid the baseband signal of the communication channel from hopping, thereby improving the adaptability of the binarized communication channel and the baseband signal, and simultaneously realizes the communication rate adaptive estimation at the satellite receiving end, adopts a multi-channel parallel structure, further divides each frequency search interval of the communication channel, and respectively performs down-conversion processing and subsequent capture algorithm on the bandwidth signal by adopting multi-channel frequency difference, thus effectively improving the transmission speed; by controlling the time sequence, the bandwidth signal and the bandwidth pseudo code are subjected to fast Fourier transform at the same time, the result is output at the same time, and real-time multiplication operation is carried out on the Fourier transform result value of the signal and the Fourier transform result conjugate value of the pseudo code; after the satellite signal is input to the communication channel, the baseband signal is up-converted and then the baseband signal is output to the communication channel after the orthogonal frequency division multiplexing data is adapted to the binary system.
In this embodiment, the step S4 of obtaining the highest transmission rate of the communication channel includes:
s41: acquiring a communication character code of the communication channel;
s42: judging whether the character code has a preset synchronous byte or not;
s43: if yes, judging the communication channel to be synchronous communication; if not, the communication channel is judged to be asynchronous communication.
In this embodiment, the system determines whether the communication channel is synchronous communication or asynchronous communication by acquiring a communication character code provided in the communication channel and according to whether the communication character code has a preset synchronous byte; for example, the system acquires the communication character code 011088541101 of the communication channel, and the preset sync byte is the same as the start bit 4-bit character code and the end bit 4-bit character code, that is, the communication character code 011088541101 does not have the preset sync byte, that is, it determines that the communication channel is asynchronous communication; for example, the system acquires the communication character code 011088540110 of the communication channel, and if it is known that the preset synchronization byte is the same as the start 4-bit character code and the end 4-bit character code, that is, the communication character code 011088540110 has the preset synchronization byte, it determines that the communication channel is synchronous communication.
It should be noted that, in the synchronous communication mode, it is not necessary to add a start bit and an end bit to each character code, but before sending data each time, a synchronous byte is sent first, so that both sides establish a synchronous relationship, then the data is sent/received bit by bit under the synchronous relationship, and the synchronous byte is sent again to terminate the communication after the data is sent; the asynchronous communication takes each character as a unit and adds a start bit and a stop bit to the character, so that the realization is simpler, but the proportion of the zone bit is larger, and the asynchronous communication is more suitable for low-speed communication, and the synchronous communication takes the data to be transmitted as a whole, and the proportion of the additional bit is smaller, and the synchronous communication is suitable for high-speed communication.
Referring to fig. 2, a signaling system for a satellite based communication signal device according to an embodiment of the present invention includes:
a first obtaining module 10, configured to obtain a numerical value of channel data currently communicated through a receiving end of a satellite signal device;
a first determining module 20, configured to determine whether a numerical value of the channel data is greater than a maximum numerical value that can be accommodated by a communication channel;
a first executing module 30, configured to, if yes, correspondingly adjust, by binarization, a maximum numerical value that can be accommodated by the communication channel according to a first specific value that a numerical value of the channel data is greater than the maximum numerical value that can be accommodated by the communication channel;
a second obtaining module 40, configured to obtain a highest transmission rate of the communication channel;
a second determining module 50, configured to determine whether the highest transmission rate is greater than a preset average rate;
a second executing module 60, configured to, if yes, expand a maximum numerical value that can be accommodated by the communication channel according to the first specific value, and correspondingly reduce a highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate.
In this embodiment, the first obtaining module 10 obtains all values that need to be fed back by bandwidth signals through the satellite communication signal device at present, and the first determining module 20 determines whether the values can be accommodated at one time through a communication channel preset by the satellite communication signal device, if the values cannot be accommodated at one time, the first executing module 30 correspondingly adjusts the once-accommodated values of the single communication channel according to the fact that the values exceed the specific values that can be accommodated at one time by the communication channel; after the second obtaining module 40 obtains the highest transmission rate of the communication channel, the second determining module 50 determines whether the highest transmission rate is greater than a preset average rate, if yes, the second executing module 60 expands the maximum value that can be accommodated by the communication channel according to the first specific value, and correspondingly reduces the highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate; for example, the system acquires that all values required to be fed back by bandwidth signals through the satellite communication signal device are 350hz, a preset communication channel of the satellite communication signal device can accommodate the values for 50s at one time, and according to a preset condition that the communication channel can transmit 5hz values every 1s, the specific default value which can be accommodated for one time and is 250hz of the communication channel is known, that is, the remaining 100hz cannot be transmitted through the communication channel, and at this time, the transmission rate of the communication channel needs to be reduced to enlarge the maximum value which can be accommodated by the communication channel; the default rate of the communication channel per minute transmission is preset by the system to be 3hz, the highest transmission rate is 5hz, the preset average rate is 1hz per minute transmission, the 3hz is reduced to be 2hz, the specific value which can be accommodated by the communication channel at one time can be correspondingly increased to be 100hz, namely, the communication channel is used for feeding back 350hz of all values which need to be fed back by the satellite communication signal device at present at one time; for example, the system acquires that all values that need to be fed back by bandwidth signals through a satellite communication signal device are 500hz, the specific value that can be contained at one time by the communication channel default is 250hz according to the preset condition that 5hz values can be transmitted every 1s through the known communication channel, that is, the communication channel needs to be expanded by 250hz to contain all values of 500hz into the communication channel at one time, even if the transmission rate 3hz of the communication channel is reduced to the preset average rate 1hz, the communication channel can only contain 450hz, and the value of 500hz cannot be met, that is, transmission cannot be completed through the communication channel that can be contained at one time.
It should be noted that hz is the channel bandwidth (hertz) and s is the average power of the transmitted signal in the channel.
In this embodiment, the first obtaining module further includes:
a first acquisition unit configured to acquire a data type of the communication data;
the first judging unit is used for judging whether the data type is matched with preset transmission data or not;
and the first execution unit is used for decomposing the communication data into node data and transmitting the node data through a corresponding communication channel.
In this embodiment, the system determines whether the data type to be communicated can be directly transmitted according to the communicable data type preset by the system by acquiring the data type to be fed back by the satellite communication signal device; for example, the data type acquired by the system and requiring bandwidth signal feedback through the satellite communication signal device is analog communication, while the data type of the communication data preset by the system is digital communication and data communication, that is, the data type of the analog communication cannot be decomposed into node data to speed up the communication transmission rate; for example, the data type acquired by the system and requiring bandwidth signal feedback through the satellite communication signal device is digital communication, and the data type of the communication data preset in the known system is digital communication and data communication, that is, the data type of the digital communication can be decomposed into node data to speed up the communication transmission rate.
In this embodiment, the method further includes:
the third acquisition module is used for acquiring a signal feedback mode of a receiving end of the satellite signal device for receiving the channel data; the signal feedback mode comprises parallel communication and serial communication;
the third judging module is used for judging whether the signal feedback mode is matched with a preset communication mode or not;
and the third execution module is used for allowing the bandwidth signal to be transmitted through a communication channel if the bandwidth signal is the same as the bandwidth signal.
In this embodiment, the system determines whether the receiving end of the satellite signal device can adapt to the signal feedback mode of the communication signal according to the signal feedback mode of the receiving end of the satellite signal device by acquiring the signal feedback mode of the receiving end of the satellite signal device for receiving channel data; for example, the signal feedback mode of the system for acquiring the satellite signal device receiving end is simplex communication, and the communication mode preset by the system is half-duplex communication and full-duplex communication, that is, the satellite signal device receiving end cannot feedback the communication signal after receiving the communication signal; for example, the signal feedback mode for the system to acquire the satellite signal device receiving end is half duplex communication, and the communication mode preset in the known system is half duplex communication and full duplex communication, that is, the satellite signal device receiving end can feedback the communication signal after receiving the communication signal.
It should be noted that simplex communication means that at any moment, signals can only be sent from one of the two communicating parties to the other, and transmitted unidirectionally on a channel, in this way, the functions of the two end nodes of the channel are fixed, and a sender can only send data and cannot receive data; half-duplex communication means that both communication parties can perform data transmission and reception, but cannot have both functions at the same time. At the same time, signals can only be sent from one end to the other end, and if the signal transmission direction needs to be changed, line switching needs to be carried out; full duplex communication means that both parties can send and receive data at any time. Two channels are used in full duplex communication, one for transmitting data and one for receiving data.
In this embodiment, the method further includes:
the fourth acquisition module is used for acquiring the communication demand of the signal sending point which needs to communicate;
the fourth judgment module is used for judging whether the communication demand is greater than the communication processing capacity preset by the receiving end of the satellite signal device;
and if so, independently setting a satellite receiving branch for receiving the communication signal at a fixed point for the signal transmitting point needing to communicate.
In this embodiment, the system determines whether the communication throughput preset at the receiving end of the satellite signal device can process the communication demand of the signal sending point required to communicate by acquiring the communication demand of the signal sending point required to communicate according to the communication demand; for example, the system acquires that the communication demand of the signal transmitting point required to communicate is 300hz, and the communication processing capacity preset at the receiving end of the satellite signal device is 250hz, that is, at this time, a satellite receiving branch for receiving the communication signal at a fixed point needs to be separately set up for the signal transmitting point required to communicate, so as to process the remaining communication demand of 50 hz; for example, the communication demand of the system for acquiring the signal transmitting point required to communicate is 200hz, and when the communication processing amount preset by the receiving end of the satellite signal device is known to be 250hz, that is, at this time, a satellite receiving branch for receiving the communication signal at a fixed point does not need to be set up for the signal transmitting point required to communicate separately.
In this embodiment, the method further includes:
a fifth obtaining module, configured to obtain a communication mode of a signal sending point that needs to perform communication;
the fifth judgment module is used for judging whether the communication mode accords with a communication mode preset by a receiving end of the satellite signal device;
the fifth execution module is used for judging that the signal sending point needing to be communicated cannot be transmitted to the receiving end of the satellite signal device through the communication channel if the signal sending point does not need to be communicated;
the first establishing module is used for establishing a signal sending point which has a preset communication mode and can send the communication data at a fixed point according to the communication data which needs to be communicated by the signal sending point, and sending the communication data which needs to be communicated to the receiving end of the satellite signal device through the signal sending point which can send the communication data at the fixed point.
In this embodiment, the system determines whether the receiving end of the satellite signal device can receive the communication signal transmitted from the communication channel according to the communication mode of the receiving end of the satellite signal device by acquiring the communication mode of the signal transmitting point which needs to communicate; for example, the system acquires serial communication mode of a signal sending point which needs to communicate, and the preset communication mode of a receiving end of a satellite signal device is parallel communication, that is, the communication mode of the signal sending point which needs to communicate does not conform to the preset communication mode of the receiving end of the satellite signal device, and at this moment, a signal sending point which has parallel communication and can send at a fixed point is needed to be established according to communication data which needs to communicate by the signal sending point, and the communication data which needs to communicate is sent to the receiving end of the satellite signal device through the signal sending point which can send at the fixed point; for example, the communication mode of the signal sending point which needs to be communicated is serial communication, and when the communication mode preset by the receiving end of the satellite signal device is known to be parallel communication, that is, the communication mode of the signal sending point which needs to be communicated conforms to the communication mode preset by the receiving end of the satellite signal device, the communication signal can be normally transmitted through the communication channel.
In this embodiment, the fifth obtaining module further includes:
a second obtaining unit, configured to obtain a signal frequency band of a signal sending point that needs to perform communication;
the second judgment unit is used for judging whether the signal frequency band is matched with the communication frequency band of the receiving end of the satellite signal device;
and the second execution unit is used for correspondingly adjusting the signal frequency band of the signal sending point needing to be communicated according to the adaptive communication frequency band of the receiving end of the satellite signal device if the satellite signal device receiving end does not receive the adaptive communication frequency band.
In this embodiment, the system determines whether the receiving end of the satellite signal device can match the signal frequency band of the signal transmitting point required to communicate according to the communication frequency band of the receiving end of the satellite signal device by acquiring the signal frequency band of the signal transmitting point required to communicate; for example, the signal frequency band of the signal transmitting point required to communicate is 1-10gz, and the communication frequency band preset by the receiving end of the satellite signal device is 10-15gz, that is, the signal frequency band of the signal transmitting point required to communicate cannot match the communication frequency band of the receiving end of the satellite signal device, at this time, the signal frequency band of the signal transmitting point required to communicate needs to be correspondingly adjusted according to the adaptive communication frequency band of the receiving end of the satellite signal device, that is, the signal transmitting point required to communicate is close to 10gz from 1-10gz, and the communication frequency band of the receiving end of the satellite signal device is close to 10gz from 10-15 gz; for example, the signal frequency band of the signal transmitting point which needs to be communicated is 1-15gz, and the communication frequency band preset at the receiving end of the known satellite signal device is 10-15gz, that is, the signal frequency band of the signal transmitting point which needs to be communicated can be matched with the communication frequency band of the receiving end of the satellite signal device, and the signal frequency band of the signal transmitting point which needs to be communicated does not need to be correspondingly adjusted according to the adaptive communication frequency band of the receiving end of the satellite signal device.
In this embodiment, the first executing module further includes:
a third obtaining unit, configured to perform binarization processing on the first specific value of the channel data whose value is greater than a maximum value that can be accommodated by the communication channel, to obtain a binarized second specific value;
a fourth obtaining unit, configured to perform serial-to-parallel replacement on the binarized second specific value to obtain sub-communication data;
and the first distribution unit is used for carrying out frequency conversion output on the communication subdata and then redistributing the communication subdata to the communication channel.
In this embodiment, the first specific value is binarized through an original signal, the obtained binary data is subjected to serial-to-parallel conversion, and serial data is converted into X-way parallel data; encoding and mapping the X paths of parallel data into Y communication subdata; and carrying out fast Fourier transform on the communication subdata subjected to coding mapping, converting the communication subdata in a frequency domain into real subdata in a time domain, adding a cyclic prefix in front of the calculated conversion sample value to form orthogonal frequency division multiplexing data subjected to cyclic extension, carrying out parallel-serial conversion on the orthogonal frequency division multiplexing data, carrying out D/A frequency conversion in a serial mode, and outputting the data to a communication channel again for transmission.
In this embodiment, the second execution module further includes:
a fifth obtaining unit, configured to obtain a baseband signal of the communication channel;
a third judging unit, configured to judge whether the baseband signal is adapted to the binarized communication channel;
and the third execution unit is used for outputting the orthogonal frequency division multiplexing data after the baseband signal is subjected to up-conversion if the baseband signal is not subjected to up-conversion so as to adapt to the binarized communication channel.
In this embodiment, the system adopts a specific synchronization pilot sequence to avoid the baseband signal of the communication channel from hopping, thereby improving the adaptability of the binarized communication channel and the baseband signal, and simultaneously realizes the communication rate adaptive estimation at the satellite receiving end, adopts a multi-channel parallel structure, further divides each frequency search interval of the communication channel, and respectively performs down-conversion processing and subsequent capture algorithm on the bandwidth signal by adopting multi-channel frequency difference, thus effectively improving the transmission speed; by controlling the time sequence, the bandwidth signal and the bandwidth pseudo code are subjected to fast Fourier transform at the same time, the result is output at the same time, and real-time multiplication operation is carried out on the Fourier transform result value of the signal and the Fourier transform result conjugate value of the pseudo code; after the satellite signal is input to the communication channel, the baseband signal is up-converted and then the orthogonal frequency division multiplexing data is output to the communication channel after the binary system is adapted.
In this embodiment, the second obtaining module further includes:
a sixth acquisition unit configured to acquire a communication character code of the communication channel;
a fourth judging unit, configured to judge whether the character code has a preset sync byte;
the fourth execution unit is used for judging that the communication channel is synchronous communication if the communication channel is synchronous communication; if not, the communication channel is judged to be asynchronous communication.
In this embodiment, the system determines whether the communication channel is synchronous communication or asynchronous communication by acquiring a communication character code provided in the communication channel and according to whether the communication character code has a preset synchronous byte; for example, the system acquires 011088541101 communication character codes of a communication channel, and the preset sync byte is that a start bit 4-bit character code is the same as a stop bit 4-bit character code, that is, the communication character code 011088541101 does not have the preset sync byte, that is, the communication channel is determined to be asynchronous communication; for example, the system acquires the communication character code 011088540110 of the communication channel, and if it is known that the preset synchronization byte is the same as the start 4-bit character code and the end 4-bit character code, that is, the communication character code 011088540110 has the preset synchronization byte, it determines that the communication channel is synchronous communication.
It should be noted that, in the synchronous communication mode, it is not necessary to add a start bit and an end bit to each character code, but a synchronous byte is sent before sending data each time, so that both sides establish a synchronous relationship, then data is sent/received bit by bit under the synchronous relationship, and the synchronous byte is sent again to terminate communication after the data is sent; the asynchronous communication takes each character as a unit and adds a start bit and a stop bit to the character, so that the realization is simpler, but the proportion of the zone bit is larger, and the asynchronous communication is more suitable for low-speed communication, and the synchronous communication takes the data to be transmitted as a whole, and the proportion of the additional bit is smaller, and the synchronous communication is suitable for high-speed communication.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A method for signaling a satellite-based communication signal device, comprising the steps of:
acquiring a numerical value of channel data currently communicated through a receiving end of a satellite signal device;
judging whether the numerical value of the channel data is larger than the maximum numerical value which can be accommodated by a communication channel;
if so, correspondingly adjusting the maximum numerical value which can be accommodated by the communication channel by adopting binary system according to a first specific value which is larger than the maximum numerical value which can be accommodated by the communication channel;
acquiring the highest transmission rate of the communication channel;
judging whether the highest transmission rate is greater than a preset average rate or not;
if so, expanding the maximum value which can be accommodated by the communication channel according to the first specific value, and correspondingly reducing the highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate.
2. The method of claim 1 wherein said step of obtaining the value of channel data currently being communicated via the receiver of the satellite signaling device comprises:
acquiring the data type of the communication data;
judging whether the data type is matched with preset transmission data or not;
and if so, decomposing the communication data into node data, and transmitting the node data through a corresponding communication channel.
3. The signaling method according to claim 1, wherein said step of adjusting said maximum value that can be accommodated by said communication channel using a binarization mapping based on a first specific value that is greater than said maximum value that can be accommodated by said communication channel, comprises:
acquiring a signal feedback mode of a satellite receiving end for receiving the channel data; the signal feedback mode comprises parallel communication and serial communication;
judging whether the signal feedback mode is matched with a preset communication mode or not;
and if so, allowing the bandwidth signal to be transmitted through a communication channel.
4. The method of claim 1 wherein said step of obtaining the value of channel data currently being communicated via the receiver of the satellite signaling device comprises:
acquiring the communication demand of a signal sending point which needs to communicate;
judging whether the communication demand is greater than communication processing capacity preset by a receiving end of the satellite signal device;
if yes, a satellite receiving branch end for receiving communication signals at a fixed point is independently set for the signal transmitting point needing to communicate.
5. The method of signaling a satellite-based communication signal device according to claim 1, wherein said step of obtaining a highest transmission rate of said communication channel is preceded by the step of:
acquiring a communication mode of a signal sending point required to communicate;
judging whether the communication mode accords with a communication mode preset by a receiving end of a satellite signal device;
if not, judging that the signal sending point needing to be communicated cannot be transmitted to a receiving end of the satellite signal device through a communication channel;
the method comprises the steps of establishing a signal sending point which has a preset communication mode and can send at a fixed point according to communication data which needs to be communicated by the signal sending point, and sending the communication data which needs to be communicated to a receiving end of the satellite signal device through the signal sending point which can send at the fixed point.
6. The method according to claim 5, wherein said step of obtaining a communication scheme of a signal transmission point for which communication is desired comprises:
acquiring a signal frequency band of a signal transmitting point required to communicate;
judging whether the signal frequency band is matched with a communication frequency band of a receiving end of a satellite signal device;
if not, the signal frequency band of the signal sending point needing to be communicated is correspondingly adjusted according to the adaptive communication frequency band of the receiving end of the satellite signal device.
7. The signaling method according to claim 1, wherein said step of adjusting said maximum value that can be accommodated by said communication channel using a binarized correspondence based on said channel data value being greater than a first specific value of said maximum value that can be accommodated by said communication channel, comprises:
performing binarization processing on a first specific value of the channel data, which is larger than the maximum value capable of being accommodated by the communication channel, to obtain a binarized second specific value;
performing serial-parallel replacement on the binary second specific value to obtain communication subdata;
and carrying out frequency conversion output on the communication subdata and then reallocating the communication subdata to the communication channel.
8. The signaling method according to claim 1, wherein said step of expanding the maximum value that said communication channel can accommodate according to said first specific value and correspondingly decreasing the maximum transmission rate of said communication channel until said maximum transmission rate is equal to said predetermined average rate comprises:
acquiring a baseband signal of the communication channel;
judging whether the baseband signal is matched with a binarized communication channel or not;
if not, the baseband signal is subjected to up-conversion and then orthogonal frequency division multiplexing data is output so as to adapt to the binarized communication channel.
9. The method of claim 1 wherein said step of obtaining a highest transmission rate of said communication channel comprises:
acquiring a communication character code of the communication channel;
judging whether the character code has a preset synchronous byte or not;
if yes, judging the communication channel to be synchronous communication; if not, the communication channel is judged to be asynchronous communication.
10. A signaling system based on a satellite communication signal device, comprising:
the first acquisition module is used for acquiring the numerical value of channel data which is currently communicated through a receiving end of the satellite signal device;
the first judgment module is used for judging whether the numerical value of the channel data is larger than the maximum numerical value which can be accommodated by a communication channel;
a first execution module, configured to, if yes, correspondingly adjust, by binarization, a maximum numerical value that can be accommodated by the communication channel according to a first specific value that a numerical value of the channel data is greater than the maximum numerical value that can be accommodated by the communication channel;
the second acquisition module is used for acquiring the highest transmission rate of the communication channel;
the second judging module is used for judging whether the highest transmission rate is greater than a preset average rate or not;
and if so, expanding the maximum value which can be accommodated by the communication channel according to the first specific value, and correspondingly reducing the highest transmission rate of the communication channel until the highest transmission rate is equal to the preset average rate.
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