CN116847335A - Communication message encryption compression system based on Beidou third generation - Google Patents
Communication message encryption compression system based on Beidou third generation Download PDFInfo
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- H—ELECTRICITY
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- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
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Abstract
The invention relates to the technical field of satellite communication, and discloses a communication message encryption and compression system based on the third generation of Beidou, which comprises an information layer, a perception layer, a prediction layer and an application layer, wherein the information layer is used for preprocessing communication message data and then encrypting and compressing the communication message data, the perception layer is used for evaluating the priority of the communication message data and evaluating the redundancy of Beidou satellite nodes, the prediction layer predicts the schedulable satellite nodes by comprehensively evaluating the data priority and the scheduling capability of the satellite nodes, the application layer comprises a communication message service platform for decrypting and transmitting the communication message data, the perception layer is introduced based on a Beidou satellite node network, the data priority is perceived, and meanwhile, the redundancy of satellite node task mobilization is evaluated, so that the data priority and the satellite nodes are linked in double mode, the priority processing of special data is ensured, and meanwhile, the efficiency of satellite node task mobilization is improved.
Description
Technical Field
The invention relates to the technical field of communication message encryption and compression, in particular to a communication message encryption and compression system based on the third generation of Beidou.
Background
The system is a global satellite communication system integrating navigation and communication and instruments, has a bidirectional short message communication function, is an important component of the Beidou three-generation system, is used for encrypting and compressing Beidou three-generation communication messages, is used for a device carrying Beidou three-generation terminals, is required to utilize Beidou positioning communication functions, is used for encrypting collected terminal data, is transmitted to a ground director cloud platform through a Beidou short message satellite communication network, is decrypted and transmitted to a database through a message decoding function of the cloud platform, is not prioritized when a plurality of data terminals transmit encrypted messages, and directly leads to that resources of a ground director center cannot be flexibly mobilized, so that timeliness of the encrypted messages cannot be guaranteed after the Beidou satellite links transmit the short messages, and the satellite task scheduling technology refers to that constraint conflicts in a task and resource executing process are avoided through modeling of the satellite tasks and resources under driving of satellite mission and management control requirements, and the satellite task and the communication system can be optimally classified based on the first-generation communication priority of the encrypted data.
Disclosure of Invention
The invention aims to provide a communication message encryption and compression system based on the Beidou third generation, which is used for sensing data priority based on a Beidou satellite node network, and simultaneously evaluating redundancy of satellite node task scheduling, so that the data priority and the satellite nodes are linked, priority processing of special data is ensured, and meanwhile, the efficiency of satellite node task scheduling is improved, and the problem in the background technology can be effectively solved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a communication message encryption compression system based on big dipper third generation, includes information layer (1), perception layer (2), predictive layer (3) and application layer (4), information layer (1) is to communication message data preprocessing and then carries out encryption compression to communication message data, information layer (1) utilizes big dipper third generation satellite network to transmit the communication message data after encryption compression to perception layer (2), perception layer (2) are used for carrying out evaluation to communication message data priority and to big dipper satellite node redundancy evaluation, perception layer (2) are with evaluation result transmission to predictive layer (3), predictive layer (3) predicts the schedulable satellite node through comprehensive evaluation communication message's priority and big dipper satellite node information scheduling ability, and the schedulable satellite node that can in time carry out communication message transmission processing is selected again, and by predictive layer (3) utilize big dipper satellite network transmission to application layer (4), application layer (4) include communication message service platform for communication message data's decryption transmission, finally by application layer (4) will be used for carrying out decryption information transmission to wireless transmission platform through the wireless communication message network.
As still further aspects of the invention: the preprocessing of communication message data in the information layer (1) is to reject abnormal values in real-time data acquired by the Beidou carrying terminal, wherein a data set acquired by the Beidou carrying terminal at a certain moment m is defined as X, a random matrix of the data set is utilized to sense abnormal measured values and simultaneously a Gaussian function is introduced to reduce noise of the data, and the data is subjected to noise reduction according to high-dimensional statistical characteristic valuesAbnormal index of communication message data at sampling time mMeanwhile, according to the known Gaussian distribution n (0, sigma 2), noise epsilon with the same frequency as X is obtained through random sampling, the noise epsilon is added into a communication message data set X to obtain a communication message data set Y=X+epsilon with noise introduced, a plurality of groups of matching data pairs { Y, X } are obtained, similar measured values between the field of the communication message data set X and the field of the communication message data set Y are calculated, u is defined as a weighted average value of gray levels of the communication message data set Y, the weight of each communication message data set Y depends on the similar measured values in the field of the communication message data set Y, a numerical value can be obtained through normalization, the numerical value depends on the noise level of the communication message data set X, the gray level of the communication message data set X can be changed according to the weighted average value of the gray levels of the communication message data set Y, and the purpose of noise reduction of the communication message data can be achieved.
As still further aspects of the invention: the encryption and compression of the communication message data in the information layer (1) is to compress and encrypt the communication message by adopting an identity and data mixed encryption method, fuse the identity information of the terminal node and the satellite node with the communication message data, ensure the data transmission safety of the communication message on the premise of verifying the identity information, prevent the communication message data from being illegally acquired by an unknown information source, introduce a group of dynamic shared secret keys, construct a satellite node information network based on a Beidou three-generation satellite deployment network, and enable the dynamic shared secret keys in a trust node range to transmit data by using the adjacent nodes as a transfer station when a designated receiving node cannot timely transmit the communication ciphertext by taking the correlation between the satellite nodes as a benchmark.
As still further aspects of the invention: the evaluation of the priority of the communication message data of the perception layer (2) is based on the historical information extraction data change rule of the Beidou carrying terminal node data, according to the space-time characteristics of the communication message data, the data collected by the Beidou carrying terminal in a continuous time Deltat tend to change stably under a certain space-time condition and have certain similarity, the stable trend of the data change at a certain moment t is broken, and the data change is corresponding to the data change trendThe data are suddenly changed, the data change trend at different moments is obtained by detecting the data value of the same terminal node in a period of time, the weights of the nodes at different moments are adjusted, the instantaneous change of the data is approximate to the conventional stable change, and the stable change trend of the normal operation of the terminal node in the moment can be obtained. The data similarity exists between the communication message data a at a certain time t1 and the communication message data b at a certain time t2Taking the overall similarity sim (a, b) of the communication message data a and the communication message data b as prior information for detecting the difference of the data subsets, and the difference of the communication message data a and the communication message data b
var(a，b) n ＝α*w p *var(a，b) n-1 ++ (1- α) ×sim (a, b), α represents a weight value, wp represents a data subset cross-reactive network.
As still further aspects of the invention: the redundancy evaluation of the Beidou satellite nodes in the perception layer (2) is based on a Beidou satellite node topology network, communication link data of the satellite nodes are used as evaluation factors, data comparison of a receiving side and a transmitting side of the communication link is used as evaluation indexes, the data quantity of the transmitting side at a certain moment t is recorded as v, the data quantity of the receiving side is recorded as n, the ratio p=v/n between the two is used as the satellite node redundancy, and the satellite nodes can be reordered by taking the size of the p value as the satellite node redundancy.
As still further aspects of the invention: the schedulable satellite node prediction in the prediction layer (3) is based on the Beidou satellite node redundancy evaluation result and the communication message data priority evaluation result in the perception layer (2), a satellite transmission link is optimized from the node matching point of view, a Beidou satellite node network is defined as G, the communication message data node network is V, and the node matching degree in the two networks is that
n M (g i ，v j ) Representing node g i And v j Are all connected withThe number of matched node pairs, Γ (·) represents the set of nodes in the node network directly connected to the node,then the Euclidean distance between two nodes is used to verify the matching degree of the characteristics of the two nodes, and X1 represents node g i X2 represents node v j D represents the dimensions of features X1 and X2.
As still further aspects of the invention: the communication message service platform in the application layer (4) adopts a 'decryption transmission+encryption verification' bidirectional mixed communication message service platform, and particularly when the satellite node transmits encrypted data to the communication message service platform, the encrypted data is firstly decrypted and extracted, and in addition, the communication message service platform also comprises an encryption verification module which encrypts according to a decryption message Wen Fanxiang and re-synthesizes the encrypted data, and a training loss function of a regeneration model of the encrypted data exists
L＝∑ x，s [||s-ε(x，s)||]+(∑ t [logD(t)]+∑ x，s [log(1-D(x，ε(t)))])，∑ x，s [||s-ε(x，s)||]Representing the re-encrypted data compression loss on the decrypted message, x representing the reference sample used to re-encrypt the decrypted message, s representing the characteristics of the reference sample of the re-encrypted decrypted message, ε (x, s) representing the auxiliary weight at encoder ε, Σ t [logD(t)]+∑ x，s [log(1-D(x，ε(t)))]The generation countermeasure loss of the re-encrypted data generation sample representing the decrypted message under the discrimination of the identifier D enables the encrypted data re-generation model to generate a synthetic sample sufficiently close to the original encrypted data.
Compared with the prior art, the invention has the beneficial effects that: based on the Beidou satellite node network, a perception layer is introduced to perceive the data priority, and meanwhile, the redundancy of satellite node task mobilization is evaluated, so that the data priority and the satellite nodes are linked in a double way, the priority processing of special data is ensured, and meanwhile, the efficiency of satellite node task mobilization is improved.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a communication message encryption compression system based on the Beidou third generation.
In the figure: 1. an information layer; 2. a perception layer; 3. a prediction layer; 4. an application layer.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Examples:
referring to fig. 1, in an embodiment of the present invention, a communication packet encryption and compression system based on the third generation of the Beidou comprises an information layer (1), a perception layer (2), a prediction layer (3) and an application layer (4), wherein the information layer (1) is used for preprocessing communication packet data and further encrypting and compressing the communication packet data, the communication packet data preprocessing is used for eliminating abnormal values in real-time data collected by a Beidou carrying terminal, wherein a data set collected by the Beidou carrying terminal at a certain moment m is defined as X, a random matrix of the data set is used for perceiving abnormal measurement values and simultaneously introducing a gaussian function to reduce noise of the data, and the data is noise according to high-dimensional statistical feature valuesCommunication message data anomaly index at sampling time m>At the same time, according to the known Gaussian distribution n (0, sigma 2), random sampling is obtainedAdding noise epsilon to communication message data set X to obtain communication message data set Y=X+epsilon introducing noise with the noise epsilon of X, obtaining a plurality of groups of matching data pairs { Y, X }, calculating similar measured values between the field of the communication message data set X and the field of the communication message data set Y, defining u as a weighted average value of gray levels of the communication message data set Y, normalizing the similar measured values of each communication message data set Y with the weight of the communication message data set Y depending on the field thereof to obtain a numerical value which depends on the noise level of the communication message data set X, changing the gray level of the communication message data set X according to the weighted average value of the gray levels of the communication message data set Y, and achieving the purpose of noise reduction of the communication message data,
the communication message data encryption and compression is to compress and encrypt the communication message by adopting an identity and data mixed encryption method, fuse the identity information of the terminal node and the satellite node with the communication message data, ensure the data transmission safety of the communication message on the premise of verifying the identity information, prevent the communication message data from being illegally acquired by an unknown information source, introduce a group of dynamic shared secret keys, construct a satellite node information network based on the Beidou three-generation satellite deployment network, take the correlation among the satellite nodes as a reference, enable the dynamic shared secret keys in the range of a trust node when a designated receiving node can not timely transmit the communication ciphertext, and transmit the data by using an adjacent node as a transfer station,
the information layer (1) transmits encrypted and compressed communication message data to the perception layer (2) by using a Beidou three-generation satellite network, the perception layer (2) is used for evaluating the priority of the communication message data and evaluating the redundancy of Beidou satellite nodes, the evaluation of the priority of the communication message data is based on the historical information of Beidou carrying terminal node data to extract the change rule of the data, the data collected by the Beidou carrying terminal in a continuous time delta t tend to change stably and have certain similarity under a certain time according to the time-space characteristics of the communication message data, the stable trend of the data change at a certain time t is broken, the corresponding data is mutated, and the data values of the same terminal node in a period of time are detected to obtain the data values at different timesThe data change trend is that the weights of the nodes at different moments are adjusted, so that the instantaneous change of the data is similar to the conventional stable change, and the stable change trend of the normal operation of the terminal node at the moment can be obtained. The data similarity exists between the communication message data a at a certain time t1 and the communication message data b at a certain time t2Taking the overall similarity sim (a, b) of the communication message data a and the communication message data b as prior information for detecting the difference of the data subsets, and the difference of the communication message data a and the communication message data b
var(a，b) n ＝α*wp*var(a，b) n-1 + (1-a) sim (a, b), a represents the weight value, wp represents the data subset cross-reactive network,
the Beidou satellite node redundancy evaluation is based on a Beidou satellite node topology network, communication link data of satellite nodes is used as an evaluation factor, data comparison of a receiving side and a transmitting side of a communication link is used as an evaluation index, the data quantity of the transmitting side at a certain moment t is recorded as v, the data quantity of the receiving side is recorded as n, the ratio p=v/n between the two is used as the satellite node redundancy, the satellite nodes can be reordered by taking the magnitude of the p value as the satellite node redundancy,
the perception layer (2) transmits the evaluation result to the prediction layer (3), the prediction layer (3) predicts the schedulable satellite nodes by comprehensively evaluating the priority level of the communication message and the information scheduling capability of the Beidou satellite nodes, the schedulable satellite nodes capable of timely processing the transmission of the communication message are optimized, based on the Beidou satellite node redundancy evaluation result in the perception layer (2) and the communication message data priority evaluation result, satellite transmission links are optimized from the node matching angle, the Beidou satellite node network is defined as G, the communication message data node network is defined as V, and the node matching degree in the two networks is
n M (g i ，v j ) Representing node g i And v j Are all connected and matchedThe number of node pairs, Γ (·) represents the set of nodes in the node network that are directly connected to the node,then the Euclidean distance between two nodes is used to verify the matching degree of the characteristics of the two nodes, and X1 represents node g i X2 represents node v j D represents the dimensions of features X1 and X2,
the prediction layer (3) utilizes Beidou three-generation satellite network to transmit to the application layer (4), the application layer (4) comprises a communication message service platform for decrypting and transmitting communication message data, finally the application layer (4) transmits communication message decryption information to the user platform by utilizing a wireless network, the communication message service platform adopts a 'decrypting and transmitting+encrypting and verifying' bidirectional mixed communication message service platform, and particularly when the satellite node transmits the encrypted data to the communication message service platform, the encrypted data is firstly decrypted and extracted, and in addition, the communication message service platform further comprises an encrypting and verifying module which encrypts according to a decryption message Wen Fanxiang and re-synthesizes the encrypted data, and a training loss function L= Σof a model for regenerating the encrypted data is adopted x，s [||s-ε(x，s)||]+(∑ t [logD(t)]+∑ x，s [log(1-D(x，ε(t)))])，∑ x，s [||s-ε(x，s)||]Representing the re-encrypted data compression loss on the decrypted message, x representing the reference sample used to re-encrypt the decrypted message, s representing the characteristics of the reference sample of the re-encrypted decrypted message, ε (x, s) representing the auxiliary weight at encoder ε, Σ t [logD(t)]+∑ x，s [log(1-D(x，ε(t)))]The generation countermeasure loss of the re-encrypted data generation sample representing the decrypted message under the discrimination of the identifier D enables the encrypted data re-generation model to generate a synthetic sample sufficiently close to the original encrypted data.
By adopting the technical scheme: based on the Beidou satellite node network, a perception layer is introduced to perceive the data priority, and meanwhile, the redundancy of satellite node task mobilization is evaluated, so that the data priority and the satellite nodes are linked in a double way, the priority processing of special data is ensured, and meanwhile, the efficiency of satellite node task mobilization is improved.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (7)
1. The utility model provides a communication message encryption compression system based on big dipper third generation, its characterized in that includes information layer (1), perception layer (2), prediction layer (3) and application layer (4), information layer (1) is to communication message data preprocessing and then carries out encryption compression to communication message data, information layer (1) utilizes big dipper third generation satellite network to transmit communication message data after encryption compression to perception layer (2), perception layer (2) are used for carrying out evaluation to communication message data priority and to big dipper satellite node redundancy evaluation, perception layer (2) are with evaluation result transmission to prediction layer (3), prediction layer (3) are through the priority of comprehensive evaluation communication message and big dipper satellite node information scheduling ability to predict the schedulable satellite node, and the schedulable satellite node that can in time carry out communication message transmission processing is selected again by prediction layer (3) utilize big dipper third generation satellite network to transmit application layer (4), application layer (4) include communication message service platform for communication message data's decryption, finally utilize decryption network information to carry out through decryption network platform with application layer (4) to use wireless transmission platform.
2. The communication message encryption and compression system based on the third generation of Beidou according to claim 1, wherein the preprocessing of communication message data in the information layer (1) is to reject abnormal values in real-time data acquired by a Beidou carrying terminal, wherein a data set acquired by the Beidou carrying terminal at a certain moment m is defined as X, a random matrix of the data set is utilized to sense abnormal measured values and simultaneously a Gaussian function is introduced to reduce noise of the data, and the data is obtained according to a high-dimensional statistical characteristic value
Communication message data anomaly index at sampling time m>Meanwhile, according to the known Gaussian distribution n (0, sigma 2), noise epsilon with the same frequency as X is obtained through random sampling, the noise epsilon is added into a communication message data set X to obtain a communication message data set Y=X+epsilon with noise introduced, a plurality of groups of matching data pairs { Y, X } are obtained, similar measured values between the field of the communication message data set X and the field of the communication message data set Y are calculated, u is defined as a weighted average value of gray levels of the communication message data set Y, the weight of each communication message data set Y depends on the similar measured values in the field of the communication message data set Y, a numerical value can be obtained through normalization, the numerical value depends on the noise level of the communication message data set X, the gray level of the communication message data set X can be changed according to the weighted average value of the gray levels of the communication message data set Y, and the purpose of noise reduction of the communication message data can be achieved.
3. The Beidou three-generation-based communication message encryption and compression system of claim 1 is characterized in that communication message data encryption and compression in the information layer (1) is achieved by adopting an identity and data mixed encryption method to compress and encrypt communication messages, identity information of terminal nodes and satellite nodes is fused with the communication message data, data transmission safety of the communication messages can be ensured on the premise of verifying the identity information, the communication message data is prevented from being illegally acquired by unknown information sources, a group of dynamic shared keys are introduced, a satellite node information network is constructed on the basis of a Beidou three-generation satellite deployment network, the dynamic shared keys are started in a trust node range when a designated receiving node cannot timely transmit communication ciphertext, and the adjacent node serves as a transfer station to transmit data.
4. The communication message encryption and compression system based on the third generation of Beidou according to claim 1, wherein the evaluation of the priority of the communication message data by the perception layer (2) is based on the historical information extraction data change rule of Beidou carrying terminal node data, according to the space-time characteristics of the communication message data, the data collected by the Beidou carrying terminal in a continuous time delta t in a certain time and in a certain time tend to change stably and have certain similarity, the stable trend of the data change at a certain time t is broken, the corresponding data is mutated, the data change trend at different times is obtained by detecting the data value of the same terminal node in a certain time, the weight of the node at different times is adjusted to enable the instantaneous change of the data to approach to the conventional stable change, and the stable change trend of the normal operation of the terminal node at the certain time can be obtained, and the communication message data a at the certain time t1 and the communication message data b at the certain time t2 have the data similarity
Taking the overall similarity sim (a, b) of the communication message data a and the communication message data b as prior information for detecting the difference of the data subsets, and the difference var (a, b) of the communication message data a and the communication message data b n ＝α*w p *(a，b) n-1 + (1- α) sm (a, b), α represents a weight value, wp represents a data subset cross-reactive network.
5. The Beidou three-generation-based communication message encryption and compression system of claim 1, wherein the Beidou satellite node redundancy evaluation in the perception layer (2) is based on a Beidou satellite node topology network, communication link data of satellite nodes is used as an evaluation factor, data comparison of a receiving side and a transmitting side of a communication link is used as an evaluation index, the data quantity of the transmitting side at a certain moment t is recorded as v, the data quantity of the receiving side is recorded as n, the ratio p=v/n between the two is used as the satellite node redundancy, and the satellite nodes can be reordered by using the size of the p value as the satellite node redundancy.
6. The communication message encryption and compression system based on the third generation of Beidou according to claim 1, wherein the schedulable satellite node prediction in the prediction layer (3) is based on a Beidou satellite node redundancy evaluation result and a communication message data priority evaluation result in the perception layer (2), a satellite transmission link is optimized from the point of node matching, a Beidou satellite node network is defined as G, a communication message data node network is defined as V, and the node matching degree in the two networks is
n M (g i ，y j ) Representing node g i And v j The number of node pairs that are connected together, Γ (·) represents the set of nodes in the node network that are directly connected to the node,then the Euclidean distance between two nodes is used to verify the matching degree of the characteristics of the two nodes, and X1 represents node g i X2 represents node v j D represents the dimensions of features X1 and X2.
7. The system according to claim 1, wherein the communication message service platform in the application layer (4) is a "decryption transmission+encryption verification" bidirectional hybrid communication message service platform, specifically, when the satellite node transmits the encrypted data to the communication message service platform, the encrypted data is firstly decrypted and extracted, and the communication message service platform further comprises an encryption verification module for encrypting the encrypted data according to the decryption message Wen Fanxiang, and for re-synthesizing the encrypted data, there is a training loss function of the encryption data regeneration model
L＝∑ x，s [||s-ε(x，s)||]+(∑ t [logD(t)]+∑ x，s [log(1-D(x，ε(t)))])，
∑ x，s [||s-ε(x，s)||]Representing the re-encrypted data compression loss on the decrypted message, x representing the reference sample used to re-encrypt the decrypted message, s representing the characteristics of the reference sample of the re-encrypted decrypted message, ε (x, s) representing the auxiliary weight at encoder ε, Σ t [logD(t)]+∑ x，s [log(1-D(x，ε(t)))]The generation countermeasure loss of the re-encrypted data generation sample representing the decrypted message under the discrimination of the identifier D enables the encrypted data re-generation model to generate a synthetic sample sufficiently close to the original encrypted data.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117579710A (en) * | 2024-01-17 | 2024-02-20 | 广东邦盛北斗科技股份公司 | Beidou short message-oriented information processing method and system |
| CN118068380A (en) * | 2024-04-19 | 2024-05-24 | 中交第一公路勘察设计研究院有限公司 | Satellite communication positioning method, satellite communication system and electronic equipment |
| CN118118079A (en) * | 2024-02-29 | 2024-05-31 | 中交星宇科技有限公司 | Data signal transmission method for Beidou satellite communication |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117579710A (en) * | 2024-01-17 | 2024-02-20 | 广东邦盛北斗科技股份公司 | Beidou short message-oriented information processing method and system |
| CN117579710B (en) * | 2024-01-17 | 2024-03-26 | 广东邦盛北斗科技股份公司 | Beidou short message-oriented information processing method and system |
| CN118118079A (en) * | 2024-02-29 | 2024-05-31 | 中交星宇科技有限公司 | Data signal transmission method for Beidou satellite communication |
| CN118068380A (en) * | 2024-04-19 | 2024-05-24 | 中交第一公路勘察设计研究院有限公司 | Satellite communication positioning method, satellite communication system and electronic equipment |
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