CN115459868B - Millimeter wave communication performance evaluation method and system in complex environment - Google Patents
Millimeter wave communication performance evaluation method and system in complex environment Download PDFInfo
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Abstract
The invention provides a millimeter wave communication performance evaluation method and system under a complex environment, which relate to the technical field of data processing. The technical problems that in the prior art, the accuracy of evaluating the millimeter wave communication performance of a complex environment is low, the communication transmission experience of a user is reduced, and the millimeter wave communication construction improvement of technicians is not facilitated are solved. The technical effects of improving the millimeter wave communication performance evaluation accuracy, facilitating the user to refer to and execute communication transmission and optimizing millimeter wave communication application by technicians are achieved.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a millimeter wave communication performance evaluation method and system in a complex environment.
Background
Millimeter waves are electromagnetic waves between microwaves and light waves, the wavelength is within the range of 1-10 mm, and the millimeter waves have the characteristics of two wave spectrums of microwaves and light waves. Millimeter wave communication is communication by taking millimeter waves as a carrier for transmitting information, has the advantages of high information transmission security and good transmission quality, and is widely applied to the fields of military communication and satellite communication.
The millimeter wave communication has the advantages of signal transmission compared with other waveforms, and meanwhile, the defect that the influence degree of the severe environment is larger is also caused, and especially, the attenuation degree of millimeter wave signals is maximum under the complex environment such as rainfall, so that the millimeter wave communication performance under the complex environment is analyzed and determined, and the construction of a millimeter wave communication system is subjected to feedback adjustment, and the effective level attenuation allowance is provided to improve the transmission capacity of millimeter wave signals under the complex severe environment, so that the transmission capacity of millimeter wave signals under the complex severe environment becomes an important direction of the current millimeter wave communication research.
In the prior art, the accuracy of evaluating the millimeter wave communication performance in a complex environment is low, so that the communication transmission effectiveness of a millimeter wave communication user is interfered, and meanwhile, the technical problem of millimeter wave communication construction and millimeter wave signal transmission performance optimization by reference of millimeter wave communication technicians is also solved.
Disclosure of Invention
The application provides a millimeter wave communication performance evaluation method and system in a complex environment, which are used for solving the technical problems in the prior art that the millimeter wave communication performance evaluation accuracy is low in the complex environment, so that the communication transmission effectiveness of millimeter wave communication users is interfered, and millimeter wave communication technicians are not facilitated to refer to millimeter wave communication construction to optimize millimeter wave signal transmission performance.
In view of the above problems, the present application provides a millimeter wave communication performance evaluation method and system in a complex environment.
In a first aspect of the present application, there is provided a millimeter wave communication performance evaluation method in a complex environment, the method comprising: acquiring environmental parameters of a plurality of environmental indexes in a plurality of environments adopting the target millimeter wave signals for wireless communication, and acquiring a plurality of environmental parameter sets; acquiring a plurality of bit error rate information of wireless communication in the environments by adopting the target millimeter wave signal, wherein the bit error rate information corresponds to the environment parameter sets one by one; normalizing the plurality of environment parameter sets and the plurality of bit error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized bit error rate information; calculating the correlation between the error rate and the environmental indexes according to the normalized error rate information and the normalized environmental parameter sets to obtain index correlation; constructing a millimeter wave communication performance evaluation model according to the index correlations; acquiring environmental parameters of a plurality of environmental indexes in the environment where the target millimeter wave signal is currently adopted for wireless communication, and acquiring a real-time environmental parameter set; and inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result.
In a second aspect of the present application, there is provided a millimeter wave communication performance evaluation system in a complex environment, the system comprising: the environment parameter obtaining module is used for obtaining environment parameters of a plurality of environment indexes in a plurality of environments for wireless communication by adopting the target millimeter wave signals and obtaining a plurality of environment parameter sets; a transmission condition acquisition module, configured to acquire a plurality of bit error rate information of wireless communication performed in the plurality of environments by using the target millimeter wave signal, where the plurality of bit error rate information corresponds to the plurality of environment parameter sets one to one; the information processing execution module is used for carrying out normalization processing on the plurality of environment parameter sets and the plurality of bit error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized bit error rate information; the index analysis processing module is used for calculating the correlation between the error rate and the environmental indexes according to the normalized error rate information and the normalized environmental parameter sets to obtain index correlation; the evaluation model construction module is used for constructing a millimeter wave communication performance evaluation model according to the index correlations; the environment parameter obtaining module is used for acquiring environment parameters of a plurality of environment indexes in the environment where the target millimeter wave signal is currently used for wireless communication, and obtaining a real-time environment parameter set; and the evaluation result output module is used for inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result.
One or more technical schemes provided by the application have at least the following technical effects or advantages:
according to the method provided by the embodiment of the application, the environment parameters of a plurality of environment indexes in a plurality of environments for wireless communication by adopting the target millimeter wave signals are obtained, a plurality of environment parameter sets are obtained, and a relatively objective data base is provided for subsequent analysis and determination of the influence condition of the target millimeter wave communication environment on the communication signals; acquiring a plurality of bit error rate information of wireless communication in the environments by adopting the target millimeter wave signal, wherein the bit error rate information corresponds to the environment parameter sets one by one; normalizing the plurality of environment parameter sets and the plurality of bit error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized bit error rate information, and providing reference information for subsequent research of complex environments on target millimeter wave wireless communication performance so as to improve millimeter wave communication data transmission quality; calculating the correlation between the error rate and the environmental indexes according to the normalized error rate information and the normalized environmental parameter sets to obtain index correlation; constructing a millimeter wave communication performance evaluation model according to the index correlations; acquiring environmental parameters of a plurality of environmental indexes in the environment where the target millimeter wave signal is currently adopted for wireless communication, and acquiring a real-time environmental parameter set; and inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result. The millimeter wave communication performance evaluation accuracy is improved, the user can refer to and execute communication transmission conveniently, reference is provided for research and development of millimeter wave communication technology, and technical staff can perform millimeter wave communication performance construction optimization conveniently.
Drawings
Fig. 1 is a schematic flow chart of a millimeter wave communication performance evaluation method in a complex environment provided by the application;
fig. 2 is a schematic flow chart of obtaining environmental parameters in a millimeter wave communication performance evaluation method under a complex environment provided by the present application;
fig. 3 is a schematic flow chart of calculating correlation between error rate and environmental index in the millimeter wave communication performance evaluation method under a complex environment provided by the application;
fig. 4 is a schematic structural diagram of a millimeter wave communication performance evaluation system in a complex environment according to the present application.
Reference numerals illustrate: the system comprises an environment parameter obtaining module 11, a transmission condition obtaining module 12, an information processing executing module 13, an index analysis processing module 14, an evaluation model constructing module 15, an environment parameter obtaining module 16 and an evaluation result outputting module 17.
Detailed Description
The application provides a millimeter wave communication performance evaluation method and system in a complex environment, which are used for solving the technical problems in the prior art that the millimeter wave communication performance evaluation accuracy is low in the complex environment, so that the communication transmission effectiveness of millimeter wave communication users is interfered, and millimeter wave communication technicians are not facilitated to refer to millimeter wave communication construction to optimize millimeter wave signal transmission performance. The millimeter wave communication performance evaluation method and the millimeter wave communication performance evaluation device achieve the technical effects of improving the millimeter wave communication performance evaluation accuracy, facilitating the user to refer to and execute communication transmission, improving the user millimeter wave communication use experience, and facilitating the technical staff to perform millimeter wave communication performance construction optimization.
The technical scheme of the application obtains, stores, uses, processes and the like the data, which all meet the relevant regulations of national laws and regulations.
In the following, the technical solutions of the present application will be clearly and completely described with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments of the present application, and that the present application is not limited by the exemplary embodiments described herein. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present application are shown.
Example 1
The application provides a millimeter wave communication performance evaluation method in a complex environment, which comprises the following steps:
s100, acquiring environmental parameters of a plurality of environmental indexes in a plurality of environments for wireless communication by adopting a target millimeter wave signal, and acquiring a plurality of environmental parameter sets;
further, as shown in fig. 2, the method step S100 provided by the present application further includes:
S110, acquiring rainfall instantaneous intensity information of rainfall in a plurality of environments adopting the target millimeter wave signals for wireless communication, and obtaining a plurality of rainfall instantaneous intensity information;
s120, acquiring communication distance length information in a plurality of environments for wireless communication by adopting the target millimeter wave signal, and obtaining a plurality of communication distance length information;
s130, acquiring raindrop size information of rainfall in a plurality of environments adopting the target millimeter wave signals for wireless communication, and obtaining a plurality of raindrop size information;
and S140, obtaining the plurality of environment parameter sets according to the plurality of rainfall instantaneous intensity information, the plurality of communication distance length information and the plurality of raindrop size information.
Specifically, the millimeter wave is an electromagnetic wave between microwaves and light waves, the wavelength is in the range of 1-10 mm, and the millimeter wave has the characteristics of two wave spectrums of microwaves and light waves. Millimeter wave communication is communication by taking millimeter wave signals as carriers for transmitting information. It should be understood that the millimeter wave signal is characterized in that the signal is attenuated in a complex severe weather environment, the information transmission effect is reduced, and the attenuation of the millimeter wave signal in a rainfall environment is particularly obvious.
Therefore, the embodiment determines the influence condition of the environment on the millimeter wave communication performance by analyzing the communication capability of the target millimeter wave signal for carrying out point-to-point information transmission of different communication distances under different rainfall environments.
The wireless communication environment refers to information transmission distance and rainfall environment information of information transmission when the target millimeter wave signal performs point-to-point wireless communication, and the rainfall environment information of information transmission comprises the instantaneous intensity of rainfall and the size of raindrops. The wireless communication environment comprises rainfall environment indexes, raindrop environment indexes, communication distance environment indexes and specific index parameters, wherein each environment index is provided with environment parameter representation environment index intensity corresponding to the environment index, rainfall environment indexes correspond to rainfall instantaneous intensity environment parameters, raindrop environment indexes correspond to raindrop size environment parameters, and communication distance slow-down indexes correspond to environment parameter set representation formed by communication distance environment parameters.
Because the target millimeter wave signal is influenced by the rainfall instantaneous intensity, the raindrop volume and the point-to-point communication distance, in the embodiment, rainfall instantaneous intensity information of rainfall in a plurality of environments adopting the target millimeter wave signal for point-to-point wireless communication is collected, and rainfall intensity environment parameters, namely a plurality of rainfall instantaneous intensity information, are obtained; acquiring raindrop size information of rainfall in a plurality of environments adopting the target millimeter wave signals for wireless communication, and obtaining environmental parameter information of raindrop size environmental indexes, namely a plurality of raindrop size information; and acquiring communication distance length information in a plurality of environments for wireless communication by adopting the target millimeter wave signals, obtaining environment parameter information of communication distance environment indexes, namely a plurality of communication distance length information, and obtaining a plurality of environment parameter sets according to the environment parameter information of the plurality of environment indexes, namely a plurality of rainfall instantaneous intensity information, a plurality of communication distance length information and a plurality of raindrop size information. A plurality of wireless communication environments for communication using the target millimeter wave signals have an environmental parameter set including rainfall instantaneous intensity environmental parameters, raindrop size environmental parameters and communication distance environmental parameters in one-to-one correspondence therewith.
According to the method and the device, the parameter data of the target millimeter wave communication environment index corresponding to the target millimeter wave communication environment is generated according to the environment information and the communication distance information when the target millimeter wave communication is adopted, so that the technical effect of providing a relatively objective data base for determining the influence condition of the target millimeter wave communication environment on the communication signals for subsequent analysis is achieved.
S200, acquiring a plurality of bit error rate information of wireless communication in a plurality of environments by adopting the target millimeter wave signal, wherein the plurality of bit error rate information corresponds to the plurality of environment parameter sets one by one;
specifically, the bit error rate is an index for measuring the accuracy of data transmission in a specified time, where the bit error rate=the bit error rate in transmission/the total number of transmitted codes. In this embodiment, a plurality of bit error rate information of wireless communication of the target millimeter wave signal in a plurality of environments in which the communication environment parameter information is acquired in step S100 is acquired, where the plurality of bit error rate information corresponds to the plurality of environments, and there is a one-to-one correspondence between the plurality of environments and a plurality of environment parameter sets composed of different rainfall instantaneous intensity environment parameters, raindrop size environment parameters, and communication distance environment parameters, so that the plurality of bit error rate information corresponds to the plurality of environment parameter sets one-to-one.
According to the embodiment, the error rate information under different communication environments is obtained, so that reference information is provided for subsequent research of the complex environment on the target millimeter wave wireless communication performance so as to improve the millimeter wave communication data transmission quality.
S300, normalizing the environment parameter sets and the bit error rate information to obtain normalized environment parameter sets and normalized bit error rate information;
further, the normalization processing is performed on the plurality of environment parameter sets and the plurality of bit error rate information, and the method step S300 provided by the present application further includes:
s310, carrying out normalization calculation processing on the environmental parameters of a plurality of environmental indexes in the plurality of environmental parameter sets, and calculating according to the following formula:
wherein ,normalized value, X, of the jth environmental parameter, which is the ith environmental indicator ij The j-th environmental parameter X being the i-th environmental index imin Is the minimum value of environmental parameters of i environmental indexes, X imax The maximum value of the environmental parameters is i environmental indexes;
s320: and carrying out normalization processing on the plurality of bit error rate information, and calculating by the following formula:
wherein ,normalized value of j-th error rate information, Y j For the j-th error rate information, Y min Is the minimum value of a plurality of bit error rate information, Y max Is the maximum of the plurality of bit error rate information.
Specifically, in this embodiment, in order to analyze the correlation between the environment where the target millimeter wave transmits information and the error rate, normalization processing is performed on the plurality of environment parameter sets and the plurality of error rate information, and data processing is performed on the environment parameter and the error rate with dimensional expression, so that the environment parameter and the error rate with dimensional expression are converted into dimensionless expression.
The data processing method for performing normalization calculation processing on the environmental parameters of the environmental indexes in the environmental parameter sets is not limited, and is preferably calculated by the following formula:
wherein ,normalized value, X, of the jth environmental parameter, which is the ith environmental indicator ij The j-th environmental parameter X being the i-th environmental index imin Is the minimum value of environmental parameters of i environmental indexes, X imax The maximum value of the environmental parameters is i environmental indexes; and according to the environment parameter normalization calculation formula, the environment parameter data in each environment index is called, and the normalization value of the corresponding environment parameter is calculated and transmitted.
The data processing method for performing normalization processing on the plurality of bit error rate information in this embodiment is not limited, and is preferably calculated by the following formula:
wherein ,normalized value of j-th error rate information, Y j For the j-th error rate information, Y min Is the minimum value of a plurality of bit error rate information, Y max For the maximum value of the bit error rate information, according to the bit error rate information normalization calculation formula, the bit error rate information corresponding to the environmental parameters one by one is called and the bit error rate information is ordered, the minimum value of the bit error rate information and the maximum value data of the bit error rate information are obtained, and the output is calculatedAnd sending the normalized value corresponding to the error rate information.
According to the embodiment, the environment parameter normalization calculation formula and the error rate information normalization calculation formula are constructed, the environment parameter data and the error rate information data are called, normalized data processing on the environment parameter and the error rate information is achieved, the data processing efficiency can be improved, influences of different dimensions on data analysis are eliminated, the correlation among data changes is mainly focused on, the influence of the environment parameter changes of all environment indexes on millimeter wave communication quality is analyzed, and the technical effect that the correlation between the error rate and a plurality of target millimeter wave communication environments is determined for subsequent analysis is achieved, and the data analysis difficulty is reduced.
S400: calculating the correlation between the error rate and the environmental indexes according to the normalized error rate information and the normalized environmental parameter sets to obtain index correlation;
Further, as shown in fig. 3, according to the plurality of normalized error rate information and the plurality of normalized environment parameter sets, a correlation between the error rate and the plurality of environment indexes is calculated, and step S400 of the method provided by the present application further includes:
s410: sequencing the plurality of normalized error rate information to obtain an error rate sequence;
s420, sorting the plurality of normalized environment parameter sets according to the plurality of environment indexes to obtain a plurality of environment parameter sequences;
and S430, calculating the correlations between the plurality of environment parameter sequences and the data in the error rate sequence one by one to obtain the plurality of index correlations.
Specifically, as can be seen from step S100, in the present embodiment, the environments of the wireless communication are in one-to-one correspondence with a plurality of environmental indicators, and specifically, each wireless communication environment includes a rainfall environmental indicator, a raindrop environmental indicator, and a communication distance environmental indicator. Each environmental index has the environmental parameter representation environmental index intensity corresponding to the environmental index, the rainfall environmental index corresponds to the rainfall instantaneous intensity environmental parameter, the raindrop environmental index corresponds to the raindrop size environmental parameter, and the communication distance slow-drop index corresponds to the environmental parameter set representation formed by the communication distance environmental parameter.
Therefore, in this embodiment, the plurality of normalized environmental parameter sets are divided into corresponding environmental parameters according to the plurality of environmental indexes, and normalized data of each environmental parameter are ordered according to a plurality of environments, so as to obtain a plurality of environmental parameter sequences, where the plurality of environmental parameter sequences include a rainfall instantaneous intensity environmental parameter sequence, a raindrop size environmental parameter sequence and a communication distance environmental parameter sequence. And the rainfall instantaneous intensity environmental parameter sequences, the raindrop size environmental parameter sequences and the communication distance environmental parameter sequences in the plurality of environmental sequences are all ordered according to the corresponding wireless millimeter wave communication environments. Meanwhile, the embodiment sorts the plurality of normalized error rate information according to the communication environment originally corresponding to the error rate information, and obtains an error rate sequence.
And obtaining a plurality of groups of related data groups which have corresponding relation with the wireless communication environment and comprise the error rate information after normalization processing, the rainfall instantaneous intensity environment parameter, the raindrop size environment parameter and the communication distance environment parameter based on the ordering method of the environment parameters and the error rates.
And calculating the correlation between the plurality of environment parameter sequences and the data in the bit error rate sequence group by group to obtain the plurality of index correlations, wherein the index correlations reflect the influence degree of different environment parameters on the information transmission accuracy. The method for calculating the correlation between the plurality of environmental parameter sequences and the data in the bit error rate sequence is not limited, and the method can be set according to the actual millimeter wave communication performance evaluation requirement of the complex environment.
According to the embodiment, the plurality of environment index data after normalization processing are disassembled and ordered based on the environment parameter types to obtain a plurality of environment parameter sequences, and the data correlation between the plurality of environment parameter sequences and the error rate sequence is calculated, so that the technical effect of knowing the influence degree of the environment parameters on the information transmission performance is achieved, and a data basis is provided for the follow-up estimation of the target millimeter wave communication performance based on the environment index.
S500, constructing a millimeter wave communication performance evaluation model according to the index correlations;
further, according to the plurality of index correlations, a millimeter wave communication performance evaluation model is constructed, and the method provided by the application further comprises the following step S500:
s510, acquiring environmental parameters of a plurality of environmental indexes of a standard environment of wireless communication by the target millimeter wave signal, and acquiring a standard environmental parameter set;
s520, calculating the difference values of the environmental parameters of a plurality of environmental indexes in different sample environmental parameter sets and the standard environmental parameter set to obtain different sample environmental parameter difference value sets;
s530, carrying out weight distribution according to the correlation of the indexes to obtain a weight distribution result;
S540, according to the weight distribution result, carrying out weighted calculation on the environmental parameter differences in the different multiple sample environmental parameter difference sets to obtain multiple sample weighted environmental parameter difference sets;
s550, evaluating the communication performance level according to the data in the plurality of sample weighted environment parameter difference value sets to obtain a plurality of sample communication performance levels;
s560, constructing a mapping relation between the plurality of sample weighted environment parameter difference value sets and the plurality of sample communication performance grades, and obtaining the millimeter wave communication performance evaluation model.
Specifically, in this embodiment, according to the plurality of index correlations, a millimeter wave communication performance evaluation model is constructed, and the millimeter wave communication performance evaluation model is used for inputting the real-time environment index to predict the communication performance of the millimeter wave wireless communication environment corresponding to the real-time environment index.
The specific millimeter wave communication performance evaluation model construction method comprises the steps of obtaining the environment parameters of a plurality of environment indexes of a wireless communication standard environment, which have no or low error rate and do not influence the effectiveness and accuracy of information transmission, of the target millimeter wave signals, and obtaining a standard environment parameter set.
Acquiring a plurality of sample environment parameter sets of a plurality of environment indexes of different wireless communication environments with error rate interference communication transmission effectiveness, calculating the difference values of the environment parameters of the plurality of sample environment parameter sets and the plurality of environment indexes in the standard environment parameter set, and acquiring different plurality of sample environment parameter difference value sets.
And carrying out weight distribution on the plurality of environmental indexes according to the magnitude of the correlation of the plurality of indexes to obtain a plurality of index weight distribution results, wherein the larger the correlation of the indexes is, the larger the weight value is, and carrying out weighted calculation on the environmental parameter differences in the different plurality of sample environmental parameter difference sets according to the weight distribution results to obtain a plurality of sample weighted environmental parameter difference sets.
And sorting the data according to the data size of the data in the plurality of sample weighted environment parameter difference value sets, performing communication performance grade evaluation later, performing communication performance grade evaluation according to the sorting result, and dividing to obtain a plurality of sample communication performance grades. And constructing a mapping relation between the plurality of sample weighted environment parameter difference value sets and the plurality of sample communication performance grades, and generating the millimeter wave communication performance evaluation model.
According to the embodiment, a wireless communication environment without error rate or error rate affecting information transmission effectiveness of millimeter wave communication is obtained as a standard communication environment, a plurality of environment parameters of a plurality of environment indexes of a plurality of standard communication environments are obtained as standard environment parameters and used for carrying out difference value calculation with a plurality of sample environment parameters with error rate interference on wireless communication effectiveness, weight distribution and weighting calculation are carried out based on parameter correlation data, a millimeter wave communication performance evaluation model is constructed, and a data processing model capable of being used for accurately evaluating millimeter wave communication performance level is obtained.
S600, acquiring environmental parameters of a plurality of environmental indexes in the environment where the target millimeter wave signal is currently used for wireless communication, and acquiring a real-time environmental parameter set;
specifically, in this embodiment, the real-time rainfall instantaneous intensity environmental parameter corresponding to the rainfall environmental index in the environment where the wireless communication is performed by using the target millimeter wave signal is collected, the raindrop size environmental parameter corresponding to the raindrop environmental index, and the communication distance environmental parameter corresponding to the communication distance slow-drop index are acquired, and the real-time environmental parameter set is used as input data to be input into the step S600 to obtain the millimeter wave communication performance evaluation model for performing real-time millimeter wave communication performance evaluation.
S700, inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result.
Further, the real-time environmental parameter set is input into the millimeter wave communication performance evaluation model to obtain the millimeter wave communication performance evaluation result, and the method step S700 provided by the application further comprises:
s710, inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model, and calculating the difference value of the environment parameters of a plurality of environment indexes in the real-time environment parameter set and the standard environment parameter set to obtain a real-time environment parameter difference value set;
s720, carrying out weighted calculation on the environmental parameter difference value in the real-time environmental parameter difference value set by adopting the weight distribution result to obtain a weighted real-time environmental parameter difference value set;
s730, traversing to obtain a sample weighted environmental parameter difference value set closest to the weighted real-time environmental parameter difference value set;
and S740, according to the mapping relation, obtaining a sample communication performance grade corresponding to the real-time environment parameter set as the millimeter wave communication performance evaluation result.
Specifically, in this embodiment, the real-time environmental parameter set obtained in step S600 is input into the millimeter wave communication performance evaluation model, the difference values of the environmental parameters of the plurality of environmental indexes in the real-time environmental parameter set and the standard environmental parameter set are calculated, a real-time environmental parameter difference value set is obtained, and the environmental parameter difference value in the real-time environmental parameter difference value set is weighted and calculated by using the weight distribution result, so as to obtain a weighted real-time environmental parameter difference value set.
And traversing the sample weighted environmental parameter difference value set to obtain a sample weighted environmental parameter difference value set closest to the weighted real-time environmental parameter difference value set, and obtaining a sample communication performance grade corresponding to the real-time environmental parameter set according to the mapping relation to serve as the millimeter wave communication performance evaluation result.
According to the embodiment, the obtained real-time environment parameter set is input into the millimeter wave communication performance evaluation model to perform difference calculation on environment parameters corresponding to environment indexes in the standard environment parameter set, weighting calculation is performed based on parameter correlation weight distribution results, the sample weighted environment parameter difference value set is searched for the closest item according to traversal comparison of the weighting calculation results, the sample communication performance level of the closest item is used as a target millimeter wave communication performance evaluation result in the real-time environment, the purpose that the millimeter wave communication performance evaluation model is applied to accurately obtain the target millimeter wave communication performance condition in the real-time environment is achieved, communication information transmission by using millimeter wave communication user references and millimeter wave communication construction by millimeter wave communication technicians are facilitated, and the technical effect that the transmission capacity of millimeter wave signals in the complex and severe environment of rainfall is improved by using effective level attenuation allowance is provided.
According to the method provided by the embodiment, the environment parameters of the environment indexes in the environments for wireless communication by adopting the target millimeter wave signals are obtained, a plurality of environment parameter sets are obtained, and a relatively objective data base is provided for subsequent analysis and determination of the influence condition of the target millimeter wave communication environment on the communication signals; acquiring a plurality of bit error rate information of wireless communication in the environments by adopting the target millimeter wave signal, wherein the bit error rate information corresponds to the environment parameter sets one by one; normalizing the plurality of environment parameter sets and the plurality of bit error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized bit error rate information, and providing reference information for subsequent research of complex environments on target millimeter wave wireless communication performance so as to improve millimeter wave communication data transmission quality; calculating the correlation between the error rate and the environmental indexes according to the normalized error rate information and the normalized environmental parameter sets to obtain index correlation; constructing a millimeter wave communication performance evaluation model according to the index correlations; acquiring environmental parameters of a plurality of environmental indexes in the environment where the target millimeter wave signal is currently adopted for wireless communication, and acquiring a real-time environmental parameter set; and inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result. The millimeter wave communication performance evaluation accuracy is improved, the user can refer to and execute communication transmission conveniently, the user millimeter wave communication use experience is improved, and the technical effect of millimeter wave communication performance construction optimization by technicians is facilitated.
Further, the step S430 of the method provided by the present application further includes:
s431: calculating association coefficients of the plurality of environment parameter sequences and the bit error rate sequence respectively to obtain an association coefficient set, wherein the association coefficient set is calculated by the following formula:
wherein ,ζi (j) For the influence correlation coefficient of the jth data in the ith environmental parameter sequence and the jth data in the error rate sequence, ρ is an adjustable calculation coefficient, |x 0 (j)-x i (j) The I is the absolute difference value between each data in the environmental parameter sequence and each data in the error rate sequence, and minmin|x 0 (j)-x i (j) The I is the two-stage minimum difference of the absolute difference of each data in the ith environmental parameter sequence and each data in the error rate sequence, max max|x 0 (j)-x i (j) The I is the two-stage maximum difference of the absolute difference of each data in the ith environmental parameter sequence and each data in the error rate sequence;
s432: and calculating the correlation between the plurality of environment parameter sequences and the bit error rate sequence according to the correlation coefficient set to obtain the plurality of index correlations.
Specifically, the method for calculating the correlation between a plurality of environmental parameter sequences and an error rate sequence is not limited, and preferably, the method performs correlation analysis on parameter information of the plurality of environmental parameter sequences and the error rate sequence based on a gray correlation analysis method to obtain correlation coefficients of the plurality of environmental parameter sequences and the error rate sequence, and calculates the correlation coefficients by the following formula:
wherein ,ζi (j) For the influence correlation coefficient of the jth data in the ith environmental parameter sequence and the jth data in the error rate sequence, ρ is an adjustable calculation coefficient, |x 0 (j)-x i (j) The I is the absolute difference value of each data in the environmental parameter sequence and each data in the error rate sequence, and min min|x 0 (j)-x i (j) The I is the two-stage minimum difference of the absolute difference of each data in the ith environmental parameter sequence and each data in the error rate sequence, max max|x 0 (j)-x i (j) And I is the two-stage maximum difference of the absolute difference of each data in the ith environmental parameter sequence and each data in the error rate sequence.
And (3) bringing a plurality of environment parameters and error rates of the same wireless communication environment into the formula, calculating the association coefficients of the plurality of environment parameter sequences and the error rate sequences group by group to obtain the association coefficient set, and laying a data foundation for the correlation between the environment indexes and the error rates in the subsequent calculation. And calculating the association degrees of the plurality of environment parameter sequences and the error rate sequence according to the association coefficient set to obtain a plurality of association degrees as the plurality of index correlations.
According to the embodiment, the correlation coefficient calculation formula is built based on gray correlation degree, and a plurality of environment parameter sequences and bit error rate sequences are substituted into the correlation coefficient calculation formula to obtain the correlation coefficient reflecting the correlation degree between the parameter data and the bit error rate data of the environment index in the same wireless communication environment, so that the technical effect of providing data support for determining the correlation between the environment parameter sequences and the bit error rate sequences is achieved, and data reference is provided for the subsequent construction of the millimeter wave communication performance evaluation model.
Example two
Based on the same inventive concept as the millimeter wave communication performance evaluation method under a complex environment in the foregoing embodiments, as shown in fig. 4, the present application provides a millimeter wave communication performance evaluation system under a complex environment, wherein the system includes:
an environmental parameter obtaining module 11, configured to obtain environmental parameters of a plurality of environmental indicators in a plurality of environments where wireless communication is performed using the target millimeter wave signal, to obtain a plurality of environmental parameter sets;
a transmission status obtaining module 12, configured to obtain a plurality of bit error rate information of wireless communication in the plurality of environments using the target millimeter wave signal, where the plurality of bit error rate information corresponds to the plurality of environmental parameter sets one to one;
an information processing executing module 13, configured to normalize the plurality of environmental parameter sets and the plurality of bit error rate information, and obtain a plurality of normalized environmental parameter sets and a plurality of normalized bit error rate information;
the index analysis processing module 14 is configured to calculate correlations between the error rate and the environmental indexes according to the normalized error rate information and the normalized environmental parameter sets, and obtain index correlations;
An evaluation model construction module 15, configured to construct a millimeter wave communication performance evaluation model according to the plurality of index correlations;
an environmental parameter obtaining module 16, configured to acquire environmental parameters of a plurality of environmental indicators in an environment currently adopting the target millimeter wave signal for wireless communication, and obtain a real-time environmental parameter set;
and the evaluation result output module 17 is used for inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result.
Further, the environmental parameter obtaining module 11 further includes:
the rainfall information obtaining unit is used for collecting rainfall instantaneous intensity information of rainfall in a plurality of environments adopting the target millimeter wave signals for wireless communication and obtaining a plurality of rainfall instantaneous intensity information;
a communication distance obtaining unit, configured to collect communication distance length information in a plurality of environments in which the target millimeter wave signal is used for wireless communication, and obtain a plurality of communication distance length information;
the raindrop information obtaining unit is used for collecting raindrop size information of rainfall in a plurality of environments adopting the target millimeter wave signals for wireless communication and obtaining a plurality of raindrop size information;
The environment parameter generating unit is used for obtaining the plurality of environment parameter sets according to the plurality of rainfall instantaneous intensity information, the plurality of communication distance length information and the plurality of raindrop size information.
Further, the information processing execution module 13 further includes:
the environment parameter processing unit is used for carrying out normalization calculation processing on the environment parameters of the plurality of environment indexes in the plurality of environment parameter sets, and the environment parameter processing unit is used for carrying out normalization calculation processing on the environment parameters of the plurality of environment indexes in the plurality of environment parameter sets through the following formula:
wherein ,normalized value, X, of the jth environmental parameter, which is the ith environmental indicator ij The j-th environmental parameter X being the i-th environmental index imin Is the minimum value of environmental parameters of i environmental indexes, X imax The maximum value of the environmental parameters is i environmental indexes;
the bit error rate information processing unit is used for carrying out normalization processing on the plurality of bit error rate information and calculating by the following formula:
wherein ,normalized value of j-th error rate information, Y j For the j-th error rate information, Y min Is the minimum value of a plurality of bit error rate information, Y max Is the maximum of the plurality of bit error rate information.
Further, the index analysis processing module 14 further includes:
the bit error rate ordering execution unit is used for ordering the plurality of normalized bit error rate information to obtain a bit error rate sequence;
The environment parameter sorting unit is used for sorting the plurality of normalized environment parameter sets according to the plurality of environment indexes to obtain a plurality of environment parameter sequences;
and the index correlation calculation unit is used for calculating the correlations of the plurality of environment parameter sequences and the data in the error rate sequence one by one to obtain the plurality of index correlations.
Further, the index correlation calculation unit further includes:
the association coefficient calculation unit is used for respectively calculating association coefficients of the plurality of environment parameter sequences and the bit error rate sequence to obtain an association coefficient set, and the association coefficient set is calculated by the following formula:
wherein ,ζi (j) For the influence correlation coefficient of the jth data in the ith environmental parameter sequence and the jth data in the error rate sequence, ρ is an adjustable calculation coefficient, |x 0 (j)-x i (j) The I is the absolute difference value of each data in the environmental parameter sequence and each data in the error rate sequence, and min min|x 0 (j)-x i (j) The I is the two-stage minimum difference of the absolute difference of each data in the ith environmental parameter sequence and each data in the error rate sequence, max max|x 0 (j)-x i (j) The I is the two-stage maximum difference of the absolute difference of each data in the ith environmental parameter sequence and each data in the error rate sequence;
And the index correlation obtaining unit is used for calculating the correlations of the plurality of environment parameter sequences and the bit error rate sequences according to the correlation coefficient set to obtain the plurality of index correlations.
Further, the evaluation model construction module 15 further includes:
an environmental parameter obtaining unit, configured to obtain environmental parameters of a plurality of environmental indicators of a standard environment in which the target millimeter wave signal performs wireless communication, to obtain a standard environmental parameter set;
the parameter difference value calculation unit is used for calculating the difference values of the environmental parameters of a plurality of environmental indexes in different sample environmental parameter sets and the standard environmental parameter set to obtain different sample environmental parameter difference value sets;
the weight distribution execution unit is used for carrying out weight distribution according to the correlation of the indexes to obtain a weight distribution result;
the weighting processing execution unit is used for carrying out weighting calculation on the environmental parameter differences in the different multiple sample environmental parameter difference sets according to the weight distribution result to obtain multiple sample weighted environmental parameter difference sets;
the communication performance evaluation unit is used for evaluating the communication performance level according to the data in the plurality of sample weighted environment parameter difference value sets to obtain a plurality of sample communication performance levels;
And the evaluation model construction unit is used for constructing the mapping relation between the plurality of sample weighted environment parameter difference value sets and the plurality of sample communication performance grades to obtain the millimeter wave communication performance evaluation model.
Further, the evaluation result output module 17 further includes:
the evaluation model input unit is used for inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model, calculating the difference value of the environment parameters of a plurality of environment indexes in the real-time environment parameter set and the standard environment parameter set, and obtaining a real-time environment parameter difference value set;
the weighted calculation execution unit is used for carrying out weighted calculation on the environmental parameter difference value in the real-time environmental parameter difference value set by adopting the weight distribution result to obtain a weighted real-time environmental parameter difference value set;
the sample data obtaining unit is used for traversing to obtain a sample weighted environmental parameter difference value set closest to the weighted real-time environmental parameter difference value set;
and the evaluation result output unit is used for obtaining the sample communication performance grade corresponding to the real-time environment parameter set according to the mapping relation and taking the sample communication performance grade as the millimeter wave communication performance evaluation result.
Any of the methods or steps described above may be stored as computer instructions or programs in various non-limiting types of computer memories, and identified by various non-limiting types of computer processors, thereby implementing any of the methods or steps described above.
Based on the above-mentioned embodiments of the present invention, any improvements and modifications to the present invention without departing from the principles of the present invention should fall within the scope of the present invention.
Claims (5)
1. A millimeter wave communication performance evaluation method in a complex environment, the method comprising:
acquiring environmental parameters of a plurality of environmental indexes in a plurality of environments adopting the target millimeter wave signals for wireless communication, and acquiring a plurality of environmental parameter sets;
acquiring a plurality of bit error rate information of wireless communication in the environments by adopting the target millimeter wave signal, wherein the bit error rate information corresponds to the environment parameter sets one by one;
normalizing the plurality of environment parameter sets and the plurality of bit error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized bit error rate information;
Calculating the correlation between the error rate and the environmental indexes according to the normalized error rate information and the normalized environmental parameter sets to obtain index correlation;
constructing a millimeter wave communication performance evaluation model according to the index correlations;
acquiring environmental parameters of a plurality of environmental indexes in the environment where the target millimeter wave signal is currently adopted for wireless communication, and acquiring a real-time environmental parameter set;
inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result;
the acquiring the environmental parameters of a plurality of environmental indexes in a plurality of environments adopting the target millimeter wave signals for wireless communication comprises the following steps:
collecting rainfall instantaneous intensity information of rainfall in a plurality of environments adopting the target millimeter wave signals for wireless communication, and obtaining a plurality of rainfall instantaneous intensity information;
acquiring communication distance length information in a plurality of environments for wireless communication by adopting the target millimeter wave signal, and obtaining a plurality of communication distance length information;
acquiring raindrop size information of rainfall in a plurality of environments adopting the target millimeter wave signals for wireless communication, and obtaining a plurality of raindrop size information;
Obtaining the plurality of environment parameter sets according to the plurality of rainfall instantaneous intensity information, the plurality of communication distance length information and the plurality of raindrop size information;
wherein calculating the correlation between the error rate and the environmental indexes according to the normalized error rate information and the normalized environmental parameter sets comprises:
sequencing the plurality of normalized error rate information to obtain an error rate sequence;
sorting the plurality of normalized environmental parameter sets according to the plurality of environmental indexes to obtain a plurality of environmental parameter sequences;
calculating the correlation of the plurality of environment parameter sequences and the data in the error rate sequence one by one to obtain the plurality of index correlations;
wherein constructing a millimeter wave communication performance evaluation model according to the plurality of index correlations comprises:
acquiring environment parameters of a plurality of environment indexes of a standard environment of wireless communication by the target millimeter wave signal, and acquiring a standard environment parameter set;
calculating the difference values of the environmental parameters of a plurality of environmental indexes in different sample environmental parameter sets and the standard environmental parameter set to obtain different sample environmental parameter difference value sets;
According to the correlation of the indexes, weight distribution is carried out to obtain a weight distribution result;
according to the weight distribution result, carrying out weighted calculation on the environmental parameter differences in the different multiple sample environmental parameter difference sets to obtain multiple sample weighted environmental parameter difference sets;
according to the data in the plurality of sample weighted environmental parameter difference value sets, carrying out communication performance grade assessment to obtain a plurality of sample communication performance grades;
and constructing a mapping relation between the plurality of sample weighted environment parameter difference value sets and the plurality of sample communication performance grades to obtain the millimeter wave communication performance evaluation model.
2. The method of claim 1, wherein normalizing the plurality of sets of environmental parameters and the plurality of bit error rate information comprises:
carrying out normalization calculation processing on the environmental parameters of a plurality of environmental indexes in the plurality of environmental parameter sets, and calculating according to the following formula:
wherein ,normalized value of the jth environmental parameter, which is the ith environmental indicator,/for>The j-th environmental parameter being the i-th environmental index,>minimum value of environmental parameter for i environmental indicators, < - >The maximum value of the environmental parameters is i environmental indexes;
and carrying out normalization processing on the plurality of bit error rate information, and calculating by the following formula:
wherein ,normalized value for j-th bit error rate information, < >>For the j-th bit error rate information,/and->Is the minimum value of a plurality of bit error rate information, < >>Is the maximum of the plurality of bit error rate information.
3. The method of claim 1, wherein said computing, one by one, correlations of the plurality of sequences of environmental parameters with data within the sequence of bit error rates comprises:
calculating association coefficients of the plurality of environment parameter sequences and the bit error rate sequence respectively to obtain an association coefficient set, wherein the association coefficient set is calculated by the following formula:
wherein ,for the influence correlation coefficient of the jth data in the ith environmental parameter sequence and the jth data in the error rate sequence,/for the jth data in the ith environmental parameter sequence>Calculating coefficients for the adjustability->For the absolute difference of each data in the respective sequence of environmental parameters and each data in the sequence of bit error rates +.>For the two-stage minimum difference of the absolute difference of each data in the ith sequence of environmental parameters and each data in the bit error rate sequence>A two-stage maximum difference of absolute difference between each data in the ith environmental parameter sequence and each data in the error rate sequence;
And calculating the correlation between the plurality of environment parameter sequences and the bit error rate sequence according to the correlation coefficient set to obtain the plurality of index correlations.
4. The method according to claim 1, wherein inputting the real-time environmental parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result comprises:
inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model, and calculating the difference value of the environment parameters of a plurality of environment indexes in the real-time environment parameter set and the standard environment parameter set to obtain a real-time environment parameter difference value set;
performing weighted calculation on the environmental parameter difference value in the real-time environmental parameter difference value set by adopting the weight distribution result to obtain a weighted real-time environmental parameter difference value set;
traversing to obtain a sample weighted environmental parameter difference value set closest to the weighted real-time environmental parameter difference value set;
and according to the mapping relation, obtaining a sample communication performance grade corresponding to the real-time environment parameter set as the millimeter wave communication performance evaluation result.
5. A millimeter wave communication performance evaluation system in a complex environment, the system comprising:
The environment parameter obtaining module is used for obtaining environment parameters of a plurality of environment indexes in a plurality of environments for wireless communication by adopting the target millimeter wave signals and obtaining a plurality of environment parameter sets;
a transmission condition acquisition module, configured to acquire a plurality of bit error rate information of wireless communication performed in the plurality of environments by using the target millimeter wave signal, where the plurality of bit error rate information corresponds to the plurality of environment parameter sets one to one;
the information processing execution module is used for carrying out normalization processing on the plurality of environment parameter sets and the plurality of bit error rate information to obtain a plurality of normalized environment parameter sets and a plurality of normalized bit error rate information;
the index analysis processing module is used for calculating the correlation between the error rate and the environmental indexes according to the normalized error rate information and the normalized environmental parameter sets to obtain index correlation;
the evaluation model construction module is used for constructing a millimeter wave communication performance evaluation model according to the index correlations;
the environment parameter obtaining module is used for acquiring environment parameters of a plurality of environment indexes in the environment where the target millimeter wave signal is currently used for wireless communication, and obtaining a real-time environment parameter set;
The evaluation result output module is used for inputting the real-time environment parameter set into the millimeter wave communication performance evaluation model to obtain a millimeter wave communication performance evaluation result;
the environmental parameter obtaining module further includes:
the rainfall information obtaining unit is used for collecting rainfall instantaneous intensity information of rainfall in a plurality of environments adopting the target millimeter wave signals for wireless communication and obtaining a plurality of rainfall instantaneous intensity information;
a communication distance obtaining unit, configured to collect communication distance length information in a plurality of environments in which the target millimeter wave signal is used for wireless communication, and obtain a plurality of communication distance length information;
the raindrop information obtaining unit is used for collecting raindrop size information of rainfall in a plurality of environments adopting the target millimeter wave signals for wireless communication and obtaining a plurality of raindrop size information;
the environment parameter generating unit is used for obtaining the plurality of environment parameter sets according to the plurality of rainfall instantaneous intensity information, the plurality of communication distance length information and the plurality of raindrop size information;
the index analysis processing module further comprises:
the bit error rate ordering execution unit is used for ordering the plurality of normalized bit error rate information to obtain a bit error rate sequence;
The environment parameter sorting unit is used for sorting the plurality of normalized environment parameter sets according to the plurality of environment indexes to obtain a plurality of environment parameter sequences;
the index correlation calculation unit is used for calculating the correlations of the plurality of environment parameter sequences and the data in the error rate sequence one by one to obtain the plurality of index correlations;
the evaluation model construction module further includes:
an environmental parameter obtaining unit, configured to obtain environmental parameters of a plurality of environmental indicators of a standard environment in which the target millimeter wave signal performs wireless communication, to obtain a standard environmental parameter set;
the parameter difference value calculation unit is used for calculating the difference values of the environmental parameters of a plurality of environmental indexes in different sample environmental parameter sets and the standard environmental parameter set to obtain different sample environmental parameter difference value sets;
the weight distribution execution unit is used for carrying out weight distribution according to the correlation of the indexes to obtain a weight distribution result;
the weighting processing execution unit is used for carrying out weighting calculation on the environmental parameter differences in the different multiple sample environmental parameter difference sets according to the weight distribution result to obtain multiple sample weighted environmental parameter difference sets;
The communication performance evaluation unit is used for evaluating the communication performance level according to the data in the plurality of sample weighted environment parameter difference value sets to obtain a plurality of sample communication performance levels;
and the evaluation model construction unit is used for constructing the mapping relation between the plurality of sample weighted environment parameter difference value sets and the plurality of sample communication performance grades to obtain the millimeter wave communication performance evaluation model.
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