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CN108318748B - A method for evaluating the similarity of base station electromagnetic radiation intensity - Google Patents

A method for evaluating the similarity of base station electromagnetic radiation intensity Download PDF

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CN108318748B
CN108318748B CN201810104434.4A CN201810104434A CN108318748B CN 108318748 B CN108318748 B CN 108318748B CN 201810104434 A CN201810104434 A CN 201810104434A CN 108318748 B CN108318748 B CN 108318748B
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base station
electromagnetic radiation
radiation intensity
interval
similarity
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CN108318748A (en
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杨万春
罗昱
张雪
卢泽斌
彭艳芬
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Xiangtan University
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    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0807—Measuring electromagnetic field characteristics characterised by the application
    • G01R29/0814—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
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Abstract

本发明公开了一种基站电磁辐射强度相似度评估方法，通过统计参考基站和对比基站的电磁辐射强度的区间概率，由区间概率差值矩阵计算对比基站和参考基站之间的电磁辐射强度相似度，根据基站电磁辐射强度相似度将一片区域内电磁辐射强度相似的基站归类，提高了基站电磁辐射强度评估工作的效率，便于基站按照电磁辐射强度的分类管理。本发明由基站电磁辐射强度的区间概率计算对比基站和参考基站之间的电磁辐射强度相似度，提出了一种有效的基站电磁辐射强度相似度评估方法。The invention discloses a method for evaluating the electromagnetic radiation intensity similarity of a base station. By calculating the interval probability of the electromagnetic radiation intensity of a reference base station and a comparison base station, the electromagnetic radiation intensity similarity between the comparison base station and the reference base station is calculated from the interval probability difference matrix. , according to the similarity of the electromagnetic radiation intensity of the base stations, the base stations with similar electromagnetic radiation intensity in an area are classified, which improves the efficiency of the evaluation of the electromagnetic radiation intensity of the base stations, and facilitates the management of the base stations according to the classification of the electromagnetic radiation intensity. The invention calculates and compares the electromagnetic radiation intensity similarity between the base station and the reference base station based on the interval probability of the electromagnetic radiation intensity of the base station, and proposes an effective evaluation method for the electromagnetic radiation intensity similarity of the base station.

Description

一种基站电磁辐射强度相似度评估方法A method for evaluating the similarity of base station electromagnetic radiation intensity

技术领域technical field

本发明涉及一种基站电磁辐射强度相似度评估方法。The invention relates to a method for evaluating the similarity of electromagnetic radiation intensity of a base station.

背景技术Background technique

由于移动通信技术发展与进步，移动通信基站的数量迅速增长，随着即将到来的第五代移动通信技术(5G)，5G通信基站的数量将达到更多。移动通信基站作为生活中最主要的电磁辐射源，其电磁辐射安全问题不能忽视。目前关于基站电磁辐射的评估方法只能对基站进行逐一测量，然而移动通信基站数量繁多而且种类复杂，评估一片区域内所有基站的电磁辐射强度是一项艰巨的任务，缺乏一种将电磁辐射强度相似的基站进行归类的评估方法，这样通过对电磁辐射强度相似的基站中的一座基站进行精确测量，便能评估其他同类基站电磁辐射强度。在已公开的专利技术或文献中，目前还不能解决这个问题。Due to the development and progress of mobile communication technology, the number of mobile communication base stations has grown rapidly, and with the upcoming fifth generation mobile communication technology (5G), the number of 5G communication base stations will reach more. As the most important source of electromagnetic radiation in life, mobile communication base station, its electromagnetic radiation safety problem cannot be ignored. At present, the evaluation method of electromagnetic radiation of base stations can only measure base stations one by one. However, there are many and complex types of mobile communication base stations. It is a difficult task to evaluate the electromagnetic radiation intensity of all base stations in an area. The evaluation method of classifying similar base stations, so that by accurately measuring one of the base stations with similar electromagnetic radiation intensity, the electromagnetic radiation intensity of other similar base stations can be evaluated. In the published patent technology or literature, this problem cannot be solved at present.

发明内容SUMMARY OF THE INVENTION

为了解决上述技术问题，本发明提供一种基站电磁辐射强度相似度评估方法。In order to solve the above technical problems, the present invention provides a method for evaluating the similarity of electromagnetic radiation intensity of a base station.

本发明解决上述技术问题的技术方案包括以下步骤：The technical scheme that the present invention solves the above-mentioned technical problem comprises the following steps:

1)、利用频谱分析仪对参考基站和对比基站的电磁辐射强度进行测量，将基站电磁辐射强度测量值按大小均匀划分为n个区间，统计每个电磁辐射强度区间的概率，参考基站电磁辐射强度的区间概率序列记为

Figure BDA0001567384790000011
第m个对比基站的电磁辐射强度的区间概率序列记为
Figure BDA0001567384790000012
m个对比基站电磁辐射强度的区间概率序列组成的区间概率矩阵如下：1) Use a spectrum analyzer to measure the electromagnetic radiation intensity of the reference base station and the comparison base station, divide the measured value of the electromagnetic radiation intensity of the base station into n intervals evenly, and count the probability of each electromagnetic radiation intensity interval, referring to the electromagnetic radiation of the base station. The interval probability sequence of intensity is denoted as
Figure BDA0001567384790000011
The interval probability sequence of the electromagnetic radiation intensity of the mth comparative base station is denoted as
Figure BDA0001567384790000012
The interval probability matrix composed of m interval probability sequences comparing the electromagnetic radiation intensity of base stations is as follows:

Figure BDA0001567384790000013
Figure BDA0001567384790000013

2)、通过步骤1)得到的对比基站电磁辐射强度的区间概率矩阵，计算对比基站与参考基站电磁辐射强度区间概率的差值矩阵(Δmi)m×i；2), the interval probability matrix of the electromagnetic radiation intensity of the comparative base station obtained by step 1), calculate the difference matrix (Δ mi ) m×i of the interval probability of the electromagnetic radiation intensity of the comparative base station and the reference base station;

3)、通过步骤2)得到的基站电磁辐射强度的差值矩阵(Δmi)m×i，计算对比基站和参考基站之间的电磁辐射强度相似度，电磁辐射强度相似度γ(Bm)计算如下：3), through the difference matrix (Δ mi ) m×i of the electromagnetic radiation intensity of the base station obtained in step 2), calculate the electromagnetic radiation intensity similarity between the comparison base station and the reference base station, and the electromagnetic radiation intensity similarity γ(B m ) The calculation is as follows:

Figure BDA0001567384790000014
Figure BDA0001567384790000014

式(2)中，γ(Bm)为第m个对比基站Bm和参考基站之间的电磁辐射强度相似度，min(Δmi)m×i为差值矩阵(Δmi)m×i中的最小元素，max(Δmi)m×i为差值矩阵(Δmi)m×i中的最大元素，Δmi为差值矩阵(Δmi)m×i中第m行i列元素，即第m个对比基站Bm和参考基站之间第i个电磁辐射强度区间概率初始化后的差值；In formula (2), γ(B m ) is the electromagnetic radiation intensity similarity between the mth comparison base station B m and the reference base station, and min(Δ mi ) m×i is the difference matrix (Δ mi ) m×i The smallest element in , max(Δ mi ) m ×i is the largest element in the difference matrix (Δ mi ) m×i, Δ mi is the mth row and i column element in the difference matrix (Δ mi ) m×i , That is, the difference between the m-th comparative base station B m and the reference base station after the initialization of the probability of the i-th electromagnetic radiation intensity interval;

4)、把步骤3)得到的对比基站和参考基站之间的电磁辐射强度相似度γ(Bm)按大小顺序排列，根据γ(Bm)判断对比基站与参考基站之间的电磁辐射强度相似度，若γ(Bm)≥0.7，则判定该对比基站与参考基站的电磁辐射强度相似，否则不相似。4) Arrange the electromagnetic radiation intensity similarity γ(B m ) between the comparison base station and the reference base station obtained in step 3) in order of magnitude, and judge the electromagnetic radiation intensity between the comparison base station and the reference base station according to γ(B m ). Similarity, if γ(B m ) ≥ 0.7, it is determined that the electromagnetic radiation intensity of the comparison base station and the reference base station are similar, otherwise they are not similar.

上述的一种基站电磁辐射强度相似度评估方法，所述步骤2)中，计算对比基站与参考基站电磁辐射强度区间概率的差值矩阵(Δmi)m×i，首先对参考基站电磁辐射强度区间概率序列和对比基站电磁辐射强度区间概率矩阵进行初始化，参考基站电磁辐射强度的区间概率序列初始化为

Figure BDA0001567384790000021
为参考基站电磁辐射强度区间概率的平均值，对比基站电磁辐射强度区间概率矩阵初始化如下：In the above-mentioned method for evaluating the similarity of electromagnetic radiation intensity of base stations, in step 2), the difference matrix (Δ mi ) m×i of the electromagnetic radiation intensity interval probability between the comparison base station and the reference base station is calculated, and the electromagnetic radiation intensity of the reference base station is first calculated. The interval probability sequence and the interval probability matrix of the electromagnetic radiation intensity of the comparative base station are initialized, and the interval probability sequence of the electromagnetic radiation intensity of the reference base station is initialized as
Figure BDA0001567384790000021
In order to refer to the average value of the probability of the electromagnetic radiation intensity interval of the base station, the probability matrix of the electromagnetic radiation intensity interval of the comparative base station is initialized as follows:

Figure BDA0001567384790000022
Figure BDA0001567384790000022

式(3)中，

Figure BDA0001567384790000023
为第m个对比基站的电磁辐射强度的区间概率的平均值。In formula (3),
Figure BDA0001567384790000023
is the average value of the interval probability of the electromagnetic radiation intensity of the mth comparative base station.

由初始化后的参考基站电磁辐射强度区间概率序列和对比基站电磁辐射强度区间概率矩阵计算电磁辐射强度区间概率的差值矩阵(Δmi)m×i，差值矩阵(Δmi)m×i如下所示：Calculate the difference matrix (Δ mi ) m×i of the electromagnetic radiation intensity interval probability from the initialized reference base station electromagnetic radiation intensity interval probability sequence and the comparison base station electromagnetic radiation intensity interval probability matrix, and the difference matrix (Δ mi ) m ×i is as follows shown:

Figure BDA0001567384790000024
Figure BDA0001567384790000024

本发明的有益效果在于：本方法通过统计参考基站和对比基站的电磁辐射强度的区间概率，计算出对比基站和参考基站之间的电磁辐射强度相似度γ(Bm)，提出了一种有效评估基站电磁辐射强度相似度的方法，该方法便于基站按照电磁辐射相似度进行分类管理与测量，对基站建设和环境保护有极大的参考价值。The beneficial effect of the invention is that: the method calculates the electromagnetic radiation intensity similarity γ(B m ) between the reference base station and the reference base station by counting the interval probability of the electromagnetic radiation intensity of the reference base station and the reference base station, and proposes an effective The method for evaluating the similarity of the electromagnetic radiation intensity of base stations is convenient for the classification, management and measurement of base stations according to the electromagnetic radiation similarity, and has great reference value for base station construction and environmental protection.

具体实施方式Detailed ways

下面结合实施例对本发明作进一步的说明。The present invention will be further described below in conjunction with the examples.

本发明实施对象为1个参考基站和3个对比基站，下行传输频段均为1840MHz～1860MHz，测量设备采用便携式频谱分析仪(KEYSIGHT N9918A，测量最大频率26.5GHz)和对数周期天线(HyperLOG 60180，测量频率范围680MHz～18GHz)，在1.8GHz频率上接收天线的天线因子AF为30dB/m，线缆损耗3dB。The implementation object of the present invention is 1 reference base station and 3 comparison base stations, the downlink transmission frequency band is 1840MHz～1860MHz, and the measurement equipment adopts a portable spectrum analyzer (KEYSIGHT N9918A, the maximum measurement frequency is 26.5GHz) and a logarithmic period antenna (HyperLOG 60180, The measurement frequency range is 680MHz～18GHz), the antenna factor AF of the receiving antenna is 30dB/m at the frequency of 1.8GHz, and the cable loss is 3dB.

本发明的一种基站电磁辐射强度相似度评估方法，包括以下步骤：A method for evaluating the similarity of electromagnetic radiation intensity of a base station of the present invention includes the following steps:

1)、利用频谱分析仪对参考基站和对比基站的电磁辐射强度进行测量，将基站电磁辐射强度测量值按大小均匀划分为n个区间，统计每个电磁辐射强度区间的概率，参考基站电磁辐射强度的区间概率序列记为

Figure BDA0001567384790000031
第m个对比基站的电磁辐射强度的区间概率序列记为
Figure BDA0001567384790000032
m个对比基站电磁辐射强度的区间概率序列组成的矩阵如式(1)所示；1) Use a spectrum analyzer to measure the electromagnetic radiation intensity of the reference base station and the comparison base station, divide the measured value of the electromagnetic radiation intensity of the base station into n intervals evenly, and count the probability of each electromagnetic radiation intensity interval, referring to the electromagnetic radiation of the base station. The interval probability sequence of intensity is denoted as
Figure BDA0001567384790000031
The interval probability sequence of the electromagnetic radiation intensity of the mth comparative base station is denoted as
Figure BDA0001567384790000032
The matrix composed of m interval probability sequences comparing the electromagnetic radiation intensity of base stations is shown in formula (1);

2)、通过步骤1)得到的对比基站电磁辐射强度的区间概率矩阵，计算对比基站与参考基站电磁辐射强度区间概率的差值矩阵(Δmi)m×i；2), the interval probability matrix of the electromagnetic radiation intensity of the comparative base station obtained by step 1), calculate the difference matrix (Δ mi ) m×i of the interval probability of the electromagnetic radiation intensity of the comparative base station and the reference base station;

3)、通过步骤2)得到的基站电磁辐射强度的差值矩阵(Δmi)m×i，计算对比基站和参考基站之间的电磁辐射强度相似度，根据式(2)计算电磁辐射强度相似度γ(Bm)；3), the difference matrix (Δ mi ) m×i of the electromagnetic radiation intensity of the base station obtained in step 2), calculate the electromagnetic radiation intensity similarity between the comparison base station and the reference base station, and calculate the electromagnetic radiation intensity similarity according to formula (2). degree γ(B m );

4)、把步骤3)得到的对比基站和参考基站之间的电磁辐射强度相似度γ(Bm)按大小顺序排列，根据γ(Bm)判断对比基站与参考基站之间的电磁辐射强度相似度，若γ(Bm)≥0.7，则判定该对比基站与参考基站的电磁辐射强度相似，否则不相似。4) Arrange the electromagnetic radiation intensity similarity γ(B m ) between the comparison base station and the reference base station obtained in step 3) in order of magnitude, and judge the electromagnetic radiation intensity between the comparison base station and the reference base station according to γ(B m ). Similarity, if γ(B m ) ≥ 0.7, it is determined that the electromagnetic radiation intensity of the comparison base station and the reference base station are similar, otherwise they are not similar.

上述步骤1)中，用频谱分析仪对参考基站和对比基站的电磁辐射强度进行测量，将基站电磁辐射强度测量值按大小均匀划分为5个区间，依次为[0,0.02]，[0.02,0.04]，[0.04,0.06]，[0.06,0.08]，[0.08,0.1]，单位为μw/cm2。本实施例测量了1个参考基站和3个对比基站，经过统计，参考基站各电磁辐射强度区间概率序列为

Figure BDA0001567384790000033
Figure BDA0001567384790000034
对比基站1、对比基站2和对比基站3的电磁辐射强度的区间概率序列组成的区间概率矩阵如下所示：In the above step 1), the electromagnetic radiation intensity of the reference base station and the comparison base station is measured with a spectrum analyzer, and the measured value of the electromagnetic radiation intensity of the base station is evenly divided into 5 intervals, which are [0, 0.02], [0.02, 0.04], [0.04, 0.06], [0.06, 0.08], [0.08, 0.1], in μw/cm 2 . In this embodiment, one reference base station and three comparison base stations are measured. After statistics, the probability sequence of each electromagnetic radiation intensity interval of the reference base station is as follows:
Figure BDA0001567384790000033
Figure BDA0001567384790000034
The interval probability matrix formed by the interval probability sequence of the electromagnetic radiation intensity of the comparative base station 1, the comparative base station 2 and the comparative base station 3 is as follows:

Figure BDA0001567384790000035
Figure BDA0001567384790000035

上述步骤2)中，通过步骤1)得到的对比基站电磁辐射强度的区间概率矩阵，计算对比基站与参考基站电磁辐射强度区间概率的差值矩阵(Δmi)3×5，首先对参考基站电磁辐射强度区间概率序列和对比基站电磁辐射强度区间概率矩阵进行初始化。参考基站电磁辐射强度测量值的区间概率序列初始化为

Figure BDA0001567384790000036
根据式(3)，对比基站1、对比基站2和对比基站3的电磁辐射强度区间概率矩阵初始化后如下所示：In the above step 2), the interval probability matrix of the electromagnetic radiation intensity of the comparison base station obtained in step 1) is used to calculate the difference matrix (Δ mi ) 3×5 of the interval probability of the electromagnetic radiation intensity of the comparison base station and the reference base station. The radiation intensity interval probability sequence and the comparison base station electromagnetic radiation intensity interval probability matrix are initialized. The interval probability sequence of the electromagnetic radiation intensity measurement value of the reference base station is initialized as
Figure BDA0001567384790000036
According to formula (3), the probability matrix of electromagnetic radiation intensity interval of comparison base station 1, comparison base station 2 and comparison base station 3 is initialized as follows:

Figure BDA0001567384790000041
Figure BDA0001567384790000041

根据式(4)计算对比基站1、对比基站2和对比基站3与参考基站之间电磁辐射强度测量值的差值矩阵(Δmi)3×5，如下所示：Calculate the difference matrix (Δ mi ) 3×5 of the electromagnetic radiation intensity measurement values between the comparison base station 1, the comparison base station 2, the comparison base station 3 and the reference base station according to the formula (4), as shown below:

Figure BDA0001567384790000042
Figure BDA0001567384790000042

上述步骤3)中，由步骤2)得到的差值矩阵(Δmi)3×5，确定差值矩阵(Δmi)3×5中的最小元素min(Δmi)3×5的值为0.020，差值矩阵(Δmi)3×5中的最大元素max(Δmi)3×5的值为In the above step 3), from the difference matrix (Δ mi ) 3×5 obtained in step 2), the minimum element min(Δ mi ) 3×5 in the difference matrix (Δ mi ) 3×5 is determined to have a value of 0.020 , the maximum element max(Δ mi ) 3×5 in the difference matrix (Δ mi ) 3× 5 is the value of

1.585。根据式(2)，结合差值矩阵(Δmi)3×5计算对比基站1、对比基站2和对比基站3与参考基站之间的电磁辐射强度相似度γ(Bm)，对比基站1的电磁辐射强度相似度γ(B1)计算如下：1.585. According to formula (2), the difference matrix (Δ mi ) 3×5 is used to calculate the electromagnetic radiation intensity similarity γ(B m ) between the reference base station and the reference base station. The electromagnetic radiation intensity similarity γ(B 1 ) is calculated as follows:

Figure BDA0001567384790000043
Figure BDA0001567384790000043

同理可得，对比基站2的电磁辐射强度相似度γ(B2)为0.925，对比基站3的电磁辐射强度相似度γ(B3)为0.616。Similarly, the electromagnetic radiation intensity similarity γ(B 2 ) of the comparison base station 2 is 0.925, and the electromagnetic radiation intensity similarity γ(B 3 ) of the comparison base station 3 is 0.616.

上述步骤4)中，根据步骤3)得到的γ(Bm)判断对比基站与参考基站之间的电磁辐射强度相似度。对比基站1、对比基站2和对比基站3与参考基站之间的电磁辐射强度相似度大小关系为：γ(B2)>γ(B1)>γ(B3)，对比基站2与参考基站之间电磁辐射强度相似度最大，同时，γ(B1)<0.7，γ(B2)>0.7，γ(B3)<0.7，因此得出结论，对比基站2与参考基站之间的电磁辐射强度相似，对比基站1和对比基站3与参考基站之间的电磁辐射强度相似与参考基站之间的电磁辐射强度不相似。In the above step 4), the electromagnetic radiation intensity similarity between the comparison base station and the reference base station is determined according to the γ(B m ) obtained in the step 3). The electromagnetic radiation intensity similarity relationship between the comparison base station 1, the comparison base station 2, the comparison base station 3 and the reference base station is: γ(B 2 )>γ(B 1 )>γ(B 3 ), and the comparison base station 2 and the reference base station At the same time, γ(B 1 )<0.7, γ(B 2 )>0.7, γ(B 3 )<0.7, so it is concluded that comparing the electromagnetic radiation between base station 2 and the reference base station The radiation intensity is similar, and the electromagnetic radiation intensity between the comparison base station 1 and the comparison base station 3 and the reference base station is similar and the electromagnetic radiation intensity between the reference base station is not similar.

本专利的发明内容能够有效评估基站之间的电磁辐射强度相似度，从而便于基站电磁辐射的测量与管理。The inventive content of this patent can effectively evaluate the electromagnetic radiation intensity similarity between base stations, thereby facilitating the measurement and management of the electromagnetic radiation of the base stations.

Claims (1)

1.一种基站电磁辐射强度相似度评估方法，其特征在于，包括以下步骤：1. a base station electromagnetic radiation intensity similarity evaluation method, is characterized in that, comprises the following steps: 1)、利用频谱分析仪对参考基站和对比基站的电磁辐射强度进行测量，将基站电磁辐射强度测量值按大小均匀划分为n个区间，统计每个电磁辐射强度区间的概率，参考基站电磁辐射强度的区间概率序列记为
Figure FDA0002364344490000011
第m个对比基站的电磁辐射强度的区间概率序列记为
Figure FDA0002364344490000012
m个对比基站电磁辐射强度的区间概率序列组成的区间概率矩阵如下：1) Use a spectrum analyzer to measure the electromagnetic radiation intensity of the reference base station and the comparison base station, divide the measured value of the electromagnetic radiation intensity of the base station into n intervals evenly, and count the probability of each electromagnetic radiation intensity interval, referring to the electromagnetic radiation of the base station. The interval probability sequence of intensity is denoted as
Figure FDA0002364344490000011
The interval probability sequence of the electromagnetic radiation intensity of the mth comparative base station is denoted as
Figure FDA0002364344490000012
The interval probability matrix composed of m interval probability sequences comparing the electromagnetic radiation intensity of base stations is as follows:
Figure FDA0002364344490000013
Figure FDA0002364344490000013
 2)、通过步骤1)得到的对比基站电磁辐射强度的区间概率矩阵，计算对比基站与参考基站电磁辐射强度区间概率的差值矩阵(Δmi)m×i；2), the interval probability matrix of the electromagnetic radiation intensity of the comparative base station obtained by step 1), calculate the difference matrix (Δ mi ) m×i of the interval probability of the electromagnetic radiation intensity of the comparative base station and the reference base station; 首先对参考基站电磁辐射强度区间概率序列和对比基站电磁辐射强度区间概率矩阵进行初始化，参考基站电磁辐射强度的区间概率序列初始化为
Figure FDA0002364344490000014
Figure FDA0002364344490000015
为参考基站电磁辐射强度区间概率的平均值，对比基站电磁辐射强度区间概率矩阵初始化如下：First, initialize the interval probability sequence of the electromagnetic radiation intensity of the reference base station and the interval probability matrix of the electromagnetic radiation intensity of the reference base station. The interval probability sequence of the electromagnetic radiation intensity of the reference base station is initialized as
Figure FDA0002364344490000014
Figure FDA0002364344490000015
In order to refer to the average value of the probability of the electromagnetic radiation intensity interval of the base station, the probability matrix of the electromagnetic radiation intensity interval of the comparative base station is initialized as follows:
Figure FDA0002364344490000016
Figure FDA0002364344490000016
 式(3)中，
Figure FDA0002364344490000017
为第m个对比基站的电磁辐射强度的区间概率的平均值；In formula (3),
Figure FDA0002364344490000017
is the average value of the interval probability of the electromagnetic radiation intensity of the mth comparative base station; 由初始化后的参考基站电磁辐射强度区间概率序列和对比基站电磁辐射强度区间概率矩阵计算电磁辐射强度区间概率的差值矩阵(Δmi)m×i，差值矩阵(Δmi)m×i如下所示：Calculate the difference matrix (Δ mi ) m×i of the electromagnetic radiation intensity interval probability from the initialized reference base station electromagnetic radiation intensity interval probability sequence and the comparison base station electromagnetic radiation intensity interval probability matrix, and the difference matrix (Δ mi ) m ×i is as follows shown:
Figure FDA0002364344490000018
Figure FDA0002364344490000018
 3)、通过步骤2)得到的基站电磁辐射强度的差值矩阵(Δmi)m×i，计算对比基站和参考基站之间的电磁辐射强度相似度，电磁辐射强度相似度γ(Bm)计算如下：3), through the difference matrix (Δ mi ) m×i of the electromagnetic radiation intensity of the base station obtained in step 2), calculate the electromagnetic radiation intensity similarity between the comparison base station and the reference base station, and the electromagnetic radiation intensity similarity γ(B m ) The calculation is as follows:
Figure FDA0002364344490000021
Figure FDA0002364344490000021
 式(2)中，γ(Bm)为第m个对比基站Bm和参考基站之间的电磁辐射强度相似度，min(Δmi)m×i为差值矩阵(Δmi)m×i中的最小元素，max(Δmi)m×i为差值矩阵(Δmi)m×i中的最大元素，Δmi为差值矩阵(Δmi)m×i中第m行i列元素，即第m个对比基站Bm和参考基站之间第i个电磁辐射强度区间概率初始化后的差值；In formula (2), γ(B m ) is the electromagnetic radiation intensity similarity between the mth comparison base station B m and the reference base station, and min(Δ mi ) m×i is the difference matrix (Δ mi ) m×i The smallest element in , max(Δ mi ) m ×i is the largest element in the difference matrix (Δ mi ) m×i, Δ mi is the mth row and i column element in the difference matrix (Δ mi ) m×i , That is, the difference between the m-th comparative base station B m and the reference base station after the initialization of the probability of the i-th electromagnetic radiation intensity interval; 4)、把步骤3)得到的对比基站和参考基站之间的电磁辐射强度相似度γ(Bm)按大小顺序排列，根据γ(Bm)判断对比基站与参考基站之间的电磁辐射强度相似度，若γ(Bm)≥0.7，则判定该对比基站与参考基站的电磁辐射强度相似，否则不相似。4) Arrange the electromagnetic radiation intensity similarity γ(B m ) between the comparison base station and the reference base station obtained in step 3) in order of magnitude, and judge the electromagnetic radiation intensity between the comparison base station and the reference base station according to γ(B m ). Similarity, if γ(B m ) ≥ 0.7, it is determined that the electromagnetic radiation intensity of the comparison base station and the reference base station are similar, otherwise they are not similar.
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