CN109299850A - Satellite information support information flow design method based on complex network model - Google Patents
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Abstract
The present invention provides a kind of satellite information support information flow design method based on complex network model, different satellite information support individuals can be regarded as the node in complex network, describe the whole relation to interact between entity, entity relationship and entity with average path length, cluster coefficients and degree 3 kinds of characteristic indexs of distribution；Then, analyze Complex Networks Feature index with satellite information support timeliness, cooperate with the corresponding relationship of efficiency and the anti-3 kinds of efficiency indexs of destruction of system；Then, the satellite information support information flow based on database is constructed；Finally, carrying out model solution, statistics obtains the parameter of satellite information support information flow.There can be reference value for satellite information support process optimization with the efficiency of the proposition of quantitative assessment satellite information support demand, mission planning, processing distribution using this method.
Description
Technical field
The invention belongs to satellite information support technical fields, and in particular to a kind of space-based information based on complex network model
Support information flow design method.
Background technique
Satellite information support refer to using various space-based information platforms for ground action provide satellite remote sensing, communication relay,
The information supports such as navigator fix, meteorology and the earth mapping.Satellite information support system is a complication system, remote sensing, communication,
Navigation, meteorological, cartographic satellite, all kinds of satellite information support demands propose entity, and it is real that space-based supports information processing, production and distribution
A complex network is constituted between body.The dynamic behavior and internal system that Complex Networks Theory can form internal system are each
The interaction relationship of composition integrates, and different satellite information support entities can be regarded as the node in complex network,
The whole relation to interact between entity, entity relationship and entity is described with complex network.
The information flow of satellite information support decides the efficiency of satellite information support and the timeliness of information flow, space-based
The purpose of information support is the quick obtaining for realizing space-based information, distribution, transmission, completes information and proposes entity to from information from demand
Reason, production and distribution entity, then to the quick circulation of demand proposition entity, core is to promote the timeliness of satellite information support.
Currently, existing scholar to the command and control system running mechanism of satellite information support, strength grouping formulation and refers to
The problems such as waving decision expansion research.Luo little Ming studies satellite information support command and control system, constructs space-based information
The complex network model of " cloud operation " command and control architecture is supported, and has carried out main parameters analysis, to space-based information branch
It helps mechanism design and optimized evaluation provides (Luo little Ming, Zhu Yanlei, He Rong satellite information support the commander's control of important references value
System running mechanism processed and complex network modeling [J] command and control and emulation, 2016,38 (5): 1-8).Tang Yafeng proposes day
Two kinds of grouping formulations of base information support, the marshalling synchronizing capacity model for establishing satellite information support strength carry out simulation analysis
Propose a kind of new model (Tang Yafeng, in the small red space that a space-based chief information officer is equipped on the basis of dispersing grouping formulation
Information support strength grouping formulation analyzes [J] command and control and emulation, 2015,37 (6): 12-18).Hou Yan etc. is to space-based information
Support operational commanding decision carried out researching and analysing the resource capability for having studied satellite information support operation, task-it is resource matched
Process, satellite information support combat duty scheme generation method and preferred flow, the problems such as determining evaluation index system, and to day
The characteristics of base information support commanding and decision-making, content and basic process are studied, to promotion satellite information support force construction
Being of great significance with utilization, (Hou Yan opens thunder space information support commanding and decision-making basic problem research [J] information science and control
Engineering processed, 2013,07:109-113).Still without reference to satellite information support information flow design method in these researchs.
In order to preferably carry out satellite information support information flow optimization design, the present invention proposes a kind of based on complex network
The satellite information support information flow design method of model, be utilized the average path length of complex network, cluster coefficients and
Symbiotic relationship is spent, the relationship of Complex Networks Feature index Yu satellite information support effectiveness evaluation index is analyzed, constructs
A kind of completely new satellite information support information flow based on database, and by model solution, statistics obtains space-based information branch
The parameter of information flow is helped, new means and method are provided for scientific design satellite information support information flow.
Summary of the invention
In view of the defects existing in the prior art, the present invention provides a kind of satellite information support letter based on complex network model
Cease flow designing method, comprising the following steps:
Step 1: design Complex Networks Feature index；
The element that satellite information support information flow is related to is more and relationship is complicated, to complex network have it is similar it
Locate, therefore Complex Networks Theory is used to construct the structural model of satellite information support information flow.Based on Complex Networks Theory,
The entity of satellite information support is abstracted into network node, the interactive relation between entity and entity is abstracted into the side of network.Benefit
Satellite information support information flow network characterization is portrayed with average path length, cluster coefficients and degree distribution；
The distance between two node is and j d in networkijIt is defined as connecting the parameter on the shortest path of the two nodes,
The maximum value of the distance between any two node is known as the diameter of network in network, is denoted as D, i.e.,
D indicates the diameter of network in formula, and max expression is maximized function, and i and j indicate two nodes in network.
The average path length L of network is defined as the average value of the distance between any two node, i.e.,
L indicates that the average path length of network, N indicate that network node number, ∑ indicate that summing function, i and j indicate net in formula
Two nodes in network, dijIndicate the number of edges in the shortest distance path between connecting node i and j.Average path length can be with table
Reference ceases transmission time, the longer expression system information flow in average path, shared to indicate the timeliness of system
Efficiency is lower, and the timeliness of system is poorer.
The degree k of node iiIt is defined as the number for other nodes connecting with the node.It intuitively sees, the degree of a node is got over
Mean that this node is more important in some sense greatly.The degree k of all node is in networkiAverage value be known as network
Average degree is denoted as < k >.The degree distribution situation of nodes can be indicated with distribution function P (k).Its indicate be one with
The degree of the selected node of machine is exactly the probability of k.Distribution function P (k) mainly has Poisson distribution and power to refer to distribution.
The cluster coefficients C of nodes iiIt is defined as and the practical number of edges being connected of the node and total possible number of edges
Between ratio, i.e.,
In formula, CiIndicate the cluster coefficients of nodes i, EiIndicate the number of edges of physical presence, kiIndicate the degree of node i.
The convergence factor C of whole network is exactly the cluster coefficients C of all node isiAverage value.In real network, work as cluster coefficients
When bigger, the connection between individual is all the more close.
Step 2: the relationship of analysis Complex Networks Feature index and satellite information support effectiveness evaluation index；
When establishing average path length, cluster coefficients and the degree Symbiotic relationship and satellite information support of complex network
Effect property, the corresponding relationship for supporting collaboration efficiency and the anti-destruction efficiency index of system, wherein average path length index is corresponding
Timeliness index, the corresponding collaboration efficiency index of cluster coefficients index are supported, degree distribution index corresponds to anti-destruction index.
In satellite information support network model, the distance between node corresponds to average path length L, space-based information branch
The timeliness helped is related with the average path length of model, but the support of satellite information support is not just from entity is supported to defending
The one way of star but to consider satellite to demand entity information back process.Therefore the average path length of a supporting operations
It is that acquisition of information path length and information provide path length summation i.e.:
LAlways=Lg+Ls (4)
L in formulaAlwaysFor information flow total length, LgFor acquisition of information path length, LsLength is provided for information.It is given below
Support the functional relation between timeliness and average path length are as follows:
B (t) indicates that the function supported between timeliness and average path length, μ are to support timeliness property coefficient, L in formulaAlwaysFor
Information flow total length.Therefore average path length is smaller in network model, represents the circulation Yu interaction of information in network, shares
With it is synchronous faster, therefore network can quickly, accurately and efficiently make a policy, i.e. the support timeliness of system is better.
Satellite information support is the supporting operations based on information, is existed in various degree between each element of satellite information support
Information exchange, resource-sharing, conspiracy relation, therefore efficiency is cooperateed with to be particularly important satellite information support.In complex web
In network model, the collaboration degree of performance between nodes can be described by convergence factor.Wherein C=0 indicates network
Interior joint is mutually indepedent, and C=1 indicates that any two node is connected directly in network.In a model, the bigger explanation of focusing factor is being believed
The interaction capabilities of each node are stronger during breath is supported, and information sharing, task cooperation ability are higher.
During satellite information support, since each entity has command and control and information exchange relationship, between each entity
Different degrees of connection relationship is showed, the association efficiency between node can characterize the anti-destruction of system.In complex network
In, the connection between node shows as the degree of node, refers to the number for other nodes being connected in a network with the node.Cause
Average degree < k > can describe the anti-destruction of satellite information support between this nodes, and each node connects each other in network
More, i.e., average degree is bigger, and anti-destruction is also stronger.
Step 3: satellite information support information flow of the building based on database；
It constructs the satellite information support information flow based on database: proposing to need by satellite information support demand entity first
It asks, is aggregated at spatial information coordination, the reasonability of satellite information support demand is analyzed at coordination, demand summarize point
Satellite information support Consultation Center is then submitted in analysis, and Consultation Center carries out satellite information support mission planning, then will planning
As a result it is sent to commanding and decision-making center, task scheme is issued to each information support unit, information support by commanding and decision-making center
Unit will directly support information and be pushed to required each entity while reporting to information data center.
Step 4: model solution, statistics obtain the parameter of satellite information support information flow；
Establish satellite information support information flow network model, calculate satellite information support action average path length,
Cluster coefficients and degree distribution obtain satellite information support timeliness, support collaboration efficiency and the anti-destruction efficiency of system and refer to
Mark, the efficiency of quantitative assessment satellite information support information flow.
Detailed description of the invention
Fig. 1 is the satellite information support information flow design method process provided by the invention based on complex network model
Figure；
Fig. 2 is the correspondence diagram of Complex Networks Feature index and satellite information support efficiency index；
Fig. 3 is the satellite information support system assumption diagram based on database.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein only to
It explains the present invention, is not intended to limit the present invention.
In conjunction with Fig. 1, the present invention provides a kind of satellite information support information flow design method based on complex network model,
The following steps are included:
Step 1: design Complex Networks Feature index；
The element that satellite information support information flow is related to is more and relationship is complicated, to complex network have it is similar it
Locate, therefore Complex Networks Theory is used to construct the structural model of satellite information support information flow.Based on Complex Networks Theory,
The entity of satellite information support is abstracted into network node, the interactive relation between entity and entity is abstracted into the side of network.Benefit
Satellite information support information flow network characterization is portrayed with average path length, cluster coefficients and degree distribution；
The distance between two node is and j d in networkijIt is defined as connecting the parameter on the shortest path of the two nodes,
The maximum value of the distance between any two node is known as the diameter of network in network, is denoted as D, i.e.,
D indicates the diameter of network in formula, and max expression is maximized function, and i and j indicate two nodes in network.
The average path length L of network is defined as the average value of the distance between any two node, i.e.,
L indicates that the average path length of network, N indicate that network node number, ∑ indicate that summing function, i and j indicate net in formula
Two nodes in network, dijIndicate the number of edges in the shortest distance path between connecting node i and j.Average path length can be with table
Reference ceases transmission time, the longer expression system information flow in average path, shared to indicate the timeliness of system
Efficiency is lower, and the timeliness of system is poorer.
The degree k of node iiIt is defined as the number for other nodes connecting with the node.It intuitively sees, the degree of a node is got over
Mean that this node is more important in some sense greatly.The degree k of all node is in networkiAverage value be known as network
Average degree is denoted as < k >.The degree distribution situation of nodes can be indicated with distribution function P (k).Its indicate be one with
The degree of the selected node of machine is exactly the probability of k.Distribution function P (k) mainly has Poisson distribution and power to refer to distribution.
The cluster coefficients C of nodes iiIt is defined as and the practical number of edges being connected of the node and total possible number of edges
Between ratio, i.e.,
In formula, CiIndicate the cluster coefficients of nodes i, EiIndicate the number of edges of physical presence, kiIndicate the degree of node i.
The convergence factor C of whole network is exactly the cluster coefficients C of all node isiAverage value.In real network, work as cluster coefficients
When bigger, the connection between individual is all the more close.
Step 2: the relationship of analysis Complex Networks Feature index and satellite information support effectiveness evaluation index；
When establishing average path length, cluster coefficients and the degree Symbiotic relationship and satellite information support of complex network
Effect property, the corresponding relationship for supporting collaboration efficiency and the anti-destruction efficiency index of system, wherein average path length index is corresponding
Timeliness index, the corresponding collaboration efficiency index of cluster coefficients index are supported, degree distribution index corresponds to anti-destruction index.Fig. 2 gives
The correspondence diagram of Complex Networks Feature index Yu satellite information support efficiency index is gone out.
In satellite information support network model, the distance between node corresponds to average path length L, space-based information branch
The timeliness helped is related with the average path length of model, but the support of satellite information support is not just from entity is supported to defending
The one way of star but to consider satellite to demand entity information back process.Therefore the average path length of a supporting operations
It is that acquisition of information path length and information provide path length summation i.e.:
LAlways=Lg+Ls (4)
L in formulaAlwaysFor information flow total length, LgFor acquisition of information path length, LsLength is provided for information.It is given below
Support the functional relation between timeliness and average path length are as follows:
B (t) indicates that the function supported between timeliness and average path length, μ are to support timeliness property coefficient, L in formulaAlwaysFor
Information flow total length.Therefore average path length is smaller in network model, represents the circulation Yu interaction of information in network, shares
With it is synchronous faster, therefore network can quickly, accurately and efficiently make a policy, i.e. the support timeliness of system is better.
Satellite information support is the supporting operations based on information, is existed in various degree between each element of satellite information support
Information exchange, resource-sharing, conspiracy relation, therefore efficiency is cooperateed with to be particularly important satellite information support.In complex web
In network model, the collaboration degree of performance between nodes can be described by convergence factor.Wherein C=0 indicates network
Interior joint is mutually indepedent, and C=1 indicates that any two node is connected directly in network.In a model, the bigger explanation of focusing factor is being believed
The interaction capabilities of each node are stronger during breath is supported, and information sharing, task cooperation ability are higher.
During satellite information support, since each entity has command and control and information exchange relationship, between each entity
Different degrees of connection relationship is showed, the association efficiency between node can characterize the anti-destruction of system.In complex network
In, the connection between node shows as the degree of node, refers to the number for other nodes being connected in a network with the node.Cause
Average degree < k > can describe the anti-destruction of satellite information support between this nodes, and each node connects each other in network
More, i.e., average degree is bigger, and anti-destruction is also stronger.
Step 3: satellite information support information flow of the building based on database；
It constructs the satellite information support information flow based on database: proposing to need by satellite information support demand entity first
It asks, is aggregated at spatial information coordination, the reasonability of satellite information support demand is analyzed at coordination, demand summarize point
Satellite information support Consultation Center is then submitted in analysis, and Consultation Center carries out satellite information support mission planning, then will planning
As a result it is sent to commanding and decision-making center, task scheme is issued to each information support unit, information support by commanding and decision-making center
Unit will directly support information and be pushed to required each entity while reporting to information data center；Fig. 3 is provided
Satellite information support system assumption diagram based on database.
Step 4: model solution, statistics obtain the parameter of satellite information support information flow；
Establish satellite information support information flow network model, calculate satellite information support action average path length,
Cluster coefficients and degree distribution obtain satellite information support timeliness, support collaboration efficiency and the anti-destruction efficiency of system and refer to
Mark, the efficiency of quantitative assessment satellite information support information flow.
Table 1 gives the satellite information support network model statistical indicator based on database.
Satellite information support network model statistical indicator of the table 1 based on database
| Statistical indicator | Node | Side | Degree distribution | Cluster coefficients | Average path length | Support timeliness |
| Numerical value | 40 | 145 | 3.85 | 0.038 | 3.0368179 | 0.24772 |
Satellite information support information flow based on database, supports that timeliness is higher, which is suitable for can be by
The Information Products that information data center provides carry out information support situation.The model is suitable for space-based scouting, meteorological and mapping letter
Breath is supported, and be can be convenient and is obtained relevant information from historical data base, to significantly improve the efficiency of satellite information support.
A kind of satellite information support information flow design method based on complex network model provided by the invention, sufficiently benefit
With characteristic index of complex network, such as average path length, cluster coefficients and degree distribution etc., it is each to portray satellite information support
Relationship between entity analyzes the relationship of Complex Networks Feature index Yu satellite information support effectiveness evaluation index, constructs
A kind of completely new satellite information support information flow based on database, and by model solution, statistics obtains space-based information branch
The parameter of information flow is helped, new means and method are provided for scientific design satellite information support information flow.It is specific have with
Lower advantage:
(1) design method proposed by the present invention is promoted from the quantitative angle analysis information flow of satellite information support
The science of satellite information support information flow design；
(2) using Complex Networks Features indexs such as average path length, cluster coefficients and degree distributions, space-based information is described
The timeliness of support supports collaboration efficiency and the anti-destruction efficiency index of system, preferably has rated satellite information support letter
Cease the feature of process；
(3) the satellite information support information flow based on database proposed, improves the timeliness of satellite information support,
It is a kind of satellite information support process easily realized.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
Depending on protection scope of the present invention.
Claims (1)
1. the satellite information support information flow design method based on complex network model, which comprises the following steps:
Step 1: design Complex Networks Feature index；
The element that satellite information support information flow is related to is more and relationship is complicated, has similarity with complex network,
Therefore Complex Networks Theory is used to construct the structural model of satellite information support information flow.It, will based on Complex Networks Theory
The entity of satellite information support is abstracted into network node, and the interactive relation between entity and entity is abstracted into the side of network.It utilizes
Satellite information support information flow network characterization is portrayed in average path length, cluster coefficients and degree distribution；
Step 2: the relationship of analysis Complex Networks Feature index and satellite information support effectiveness evaluation index；
Establish average path length, cluster coefficients and the degree Symbiotic relationship and satellite information support timeliness of complex network
Property, support the corresponding relationship of collaboration efficiency and the anti-destruction efficiency index of system, the wherein corresponding branch of average path length index
Timeliness index, the corresponding collaboration efficiency index of cluster coefficients index are helped, degree distribution index corresponds to anti-destruction index；
Step 3: satellite information support information flow of the building based on database；
It constructs the satellite information support information flow based on database: demand being proposed by satellite information support demand entity first,
It is aggregated at spatial information coordination, the reasonability of satellite information support demand is analyzed at coordination, Macro or mass analysis is carried out to demand, and
After submit to satellite information support Consultation Center, Consultation Center carries out satellite information support mission planning, then by program results
It is sent to commanding and decision-making center, task scheme is issued to each information support unit, information support unit by commanding and decision-making center
While being reported to information data center, it will directly support information and be pushed to required each entity；
Step 4: model solution, statistics obtain the parameter of satellite information support information flow；
Satellite information support information flow network model is established, average path length, the cluster of satellite information support action are calculated
Coefficient and degree distribution obtain satellite information support timeliness, support collaboration efficiency and the anti-destruction efficiency index of system, fixed
The efficiency of amount evaluation satellite information support information flow.
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