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CN110531176B - Active antenna TRP rapid measurement method - Google Patents

Active antenna TRP rapid measurement method Download PDF

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CN110531176B
CN110531176B CN201910762560.3A CN201910762560A CN110531176B CN 110531176 B CN110531176 B CN 110531176B CN 201910762560 A CN201910762560 A CN 201910762560A CN 110531176 B CN110531176 B CN 110531176B
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trp
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杜刘革
邱现允
孔凡敏
赵佳
王士铨
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Shanghai Manguang Information Technology Co ltd
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Abstract

本发明属于通讯技术领域,涉及天线TRP的测量方法。一种有源天线TRP快速测量方法，其特征在于：包括：将有源天线安装于待测转台上，连接仪器设备；测量主极化水平切面EIRP分布数据，得到；测量主极化垂直切面EIRP分布数据，得到；计算全球面EIRP数据；根据全球面EIRP数据计算TRP值。本发明提供的有源天线TRP快速测量方法，在测量中仅需要进行两个主切面EIRP方向图的测量，利用三维方向图合成公式，即可由两个主切面方向图生成三维EIRP数据，再根据求和公式得到有源天线的TRP值，将三维测量降至二维测量，不仅极大地减少了采样所需时间，加快了测量速度，而且能够减少误差，提高TRP测量值的精确度。

Figure 201910762560

The invention belongs to the technical field of communication, and relates to a method for measuring antenna TRP. A fast measurement method for active antenna TRP, which is characterized in that: comprising: installing the active antenna on a turntable to be measured, connecting instruments and equipment; measuring the EIRP distribution data of the horizontal section of the main polarization, and obtaining; measuring the EIRP of the vertical section of the main polarization Distribution data, get; calculate global EIRP data; calculate TRP value according to global EIRP data. The fast measurement method for active antenna TRP provided by the present invention only needs to measure the EIRP pattern of two principal sections. By using the three-dimensional pattern synthesis formula, the three-dimensional EIRP data can be generated from the two principal section patterns, and then according to the The summation formula obtains the TRP value of the active antenna, and reduces the three-dimensional measurement to the two-dimensional measurement, which not only greatly reduces the time required for sampling, but also accelerates the measurement speed, and can reduce errors and improve the accuracy of the TRP measurement value.

Figure 201910762560

Description

一种有源天线TRP快速测量方法A fast measurement method of active antenna TRP

技术领域technical field

本发明属于通讯技术领域,涉及天线TRP的测量方法。The invention belongs to the technical field of communication, and relates to a method for measuring antenna TRP.

背景技术Background technique

随着5G移动通信的发展，大规模多输入多输出(Multiple Input MutipleOutput，MIMO)天线阵列得到普遍关注，由于集成度要求的提高，MIMO天线系统已经将射频处理部分与前端天线高度集成化，成为有源天线系统，无法将天线无源部分分离，天线的增益无法直接测量，但其总辐射功率(Total Radiated Power，TRP)可以作为衡量其辐射性能的重要指标，因此TRP的测量在有源天线的研发生产中十分重要。With the development of 5G mobile communications, massive multiple-input multiple-output (MIMO) antenna arrays have received widespread attention. Due to the increase in integration requirements, MIMO antenna systems have highly integrated the RF processing part and the front-end antenna, becoming the The active antenna system cannot separate the passive part of the antenna, and the gain of the antenna cannot be directly measured, but its total radiated power (TRP) can be used as an important indicator to measure its radiation performance. Therefore, the measurement of TRP is performed in the active antenna. very important in R&D and production.

目前在有源天线的TRP测量方面，移动通信终端天线已经有相关标准，即在空口(Over The Air,OTA)测量暗室内，利用Theta-Phi坐标系转台旋转一个球面，测量得到每个角度的有效全向辐射功率(Effective Isotropic Radiated Power,EIRP)，然后按照式(1)进行求和运算得到TRP值。At present, in terms of TRP measurement of active antennas, there are already relevant standards for mobile communication terminal antennas, that is, in the Over The Air (OTA) measurement darkroom, the Theta-Phi coordinate system turntable is used to rotate a spherical surface, and the measurement of each angle is obtained. Effective isotropic radiated power (Effective Isotropic Radiated Power, EIRP), and then perform a summation operation according to formula (1) to obtain the TRP value.

Figure BDA0002170848350000011
Figure BDA0002170848350000011

其中，

Figure BDA0002170848350000012
及
Figure BDA0002170848350000013
分别为测量点
Figure BDA0002170848350000014
处的θ极化及
Figure BDA0002170848350000015
极化EIRP值，N和M分别为θ方向及
Figure BDA0002170848350000016
方向采样点数。通常天线的交叉极化辐射功率相对主极化很小，因此如果采用主极化旋转测量方式，则采用式(2)即可进行TRP值计算。in,
Figure BDA0002170848350000012
and
Figure BDA0002170848350000013
measuring points
Figure BDA0002170848350000014
Theta polarization at and
Figure BDA0002170848350000015
Polarized EIRP value, N and M are the θ direction and
Figure BDA0002170848350000016
The number of sample points in the direction. Usually, the cross-polarization radiation power of the antenna is relatively small relative to the main polarization, so if the main polarization rotation measurement method is adopted, the TRP value can be calculated by using the formula (2).

Figure BDA0002170848350000017
Figure BDA0002170848350000017

其中，

Figure BDA0002170848350000018
为主极化EIRP值。in,
Figure BDA0002170848350000018
is the main polarization EIRP value.

由于移动通信终端天线一般尺寸较小，方向图较宽，因此其采样角度间隔可以较大，但是对多个信道整个球面两个极化的扫描依然比较耗时。中国发明专利ZL201310158536.1，一种终端天线TRP快速测试方法，该方法公开了一种利用某一信道的EIRP补偿其他信道的快速测量方法，不过仍然需要一个球面的扫描过程。Since the antenna of a mobile communication terminal is generally small in size and has a wide pattern, its sampling angle interval can be large, but it is still time-consuming to scan the entire spherical surface and two polarizations of multiple channels. Chinese invention patent ZL201310158536.1, a fast test method for terminal antenna TRP, which discloses a fast measurement method that uses the EIRP of a certain channel to compensate for other channels, but still requires a spherical scanning process.

另外，对于有源基站天线，特别是大规模MIMO天线来说，其方向图较窄，副瓣较多，如果采用较大角度间隔(如中国发明专利ZL201310158536.1中的角度间隔30°)进行采样，其TRP测量误差会很大。因此必须减小采样间隔，而两个角度维度的采样间隔每减小n倍，测量点数就会增加为n的平方倍，这将会极大地增加测量时间，如将θ间隔及

Figure BDA00021708483500000212
间隔减小到1°，得到的TRP值较为精确，但需要采样180*360个点，时间比30°间隔采样增长了900倍，因此需要进行快速测量方法研究。In addition, for active base station antennas, especially massive MIMO antennas, the pattern is narrow and the side lobes are more. sampling, the TRP measurement error will be large. Therefore, the sampling interval must be reduced, and every time the sampling interval of the two angular dimensions is reduced by n times, the number of measurement points will increase to the square times of n, which will greatly increase the measurement time.
Figure BDA00021708483500000212
When the interval is reduced to 1°, the obtained TRP value is more accurate, but 180*360 points need to be sampled, and the time is 900 times longer than that of 30° interval sampling, so it is necessary to study the fast measurement method.

发明内容SUMMARY OF THE INVENTION

基于现有技术中存在的问题，本发明的目的是提供一种有源天线TRP快速测量方法，该方法只需进行整个球面两个角度维度的扫描，能够极大地缩短测量时间，同时能够减少误差，提高TRP测量值的精确度。Based on the problems existing in the prior art, the purpose of the present invention is to provide a fast measurement method for active antenna TRP, which only needs to scan two angular dimensions of the entire spherical surface, which can greatly shorten the measurement time and reduce errors at the same time. , to improve the accuracy of TRP measurements.

本发明解决其技术问题采用的技术方案是：一种有源天线TRP快速测量方法，包括：The technical solution adopted by the present invention to solve the technical problem is: a fast measurement method for active antenna TRP, comprising:

将有源天线安装于待测转台上，连接仪器设备；Install the active antenna on the turntable to be tested, and connect the equipment;

测量主极化水平切面EIRP分布数据，得到

Figure BDA0002170848350000021
Measure the EIRP distribution data of the horizontal section of the main polarization, and get
Figure BDA0002170848350000021

测量主极化垂直切面EIRP分布数据，得到

Figure BDA0002170848350000022
Measure the EIRP distribution data of the vertical section of the main polarization, and get
Figure BDA0002170848350000022

计算全球面EIRP数据

Figure BDA0002170848350000023
Calculate global EIRP data
Figure BDA0002170848350000023

根据全球面EIRP数据

Figure BDA0002170848350000024
计算TRP值。According to global EIRP data
Figure BDA0002170848350000024
Calculate the TRP value.

作为本发明的优选方式一，所述的全球面EIRP数据

Figure BDA0002170848350000025
的As the preferred mode 1 of the present invention, the global EIRP data
Figure BDA0002170848350000025
of

计算公式为：The calculation formula is:

Figure BDA0002170848350000026
Figure BDA0002170848350000026

其中，

Figure BDA0002170848350000027
是合成算法结果的符号代表，SA是Sum Algorithm的缩写，下标dB表示EIRP以对数值表示
Figure BDA0002170848350000028
Figure BDA00021708483500000213
表示水平面EIRP方向图，是
Figure BDA0002170848350000029
的函数，
Figure BDA00021708483500000210
是垂直平面EIRP方向图，是θ的函数，Max代表求最大值。in,
Figure BDA0002170848350000027
is the symbolic representation of the result of the synthesis algorithm, SA is the abbreviation of Sum Algorithm, and the subscript dB indicates that EIRP is expressed in logarithmic value
Figure BDA0002170848350000028
Figure BDA00021708483500000213
represents the horizontal plane EIRP pattern, is
Figure BDA0002170848350000029
The function,
Figure BDA00021708483500000210
is the EIRP pattern of the vertical plane, which is a function of θ, and Max represents the maximum value.

作为本发明的优选方式二，所述的全球面EIRP数据

Figure BDA00021708483500000211
的计算公式为：As the second preferred mode of the present invention, the global EIRP data
Figure BDA00021708483500000211
The calculation formula is:

Figure BDA0002170848350000031
Figure BDA0002170848350000031

其中，

Figure BDA0002170848350000032
是加权合成算法结果的符号代表，we代指weight，k是指数系数，w1与w2为权重系数，in,
Figure BDA0002170848350000032
is the symbolic representation of the result of the weighted synthesis algorithm, we stands for weight, k is the exponential coefficient, w1 and w2 are the weight coefficients,

Figure BDA0002170848350000033
Figure BDA0002170848350000033

下标Un表示归一化EIRP方向图，

Figure BDA0002170848350000034
是垂直切面归一化EIRP方向图、
Figure BDA0002170848350000035
是水平切面归一化EIRP方向图。The subscript Un represents the normalized EIRP pattern,
Figure BDA0002170848350000034
is the normalized EIRP pattern of the vertical section,
Figure BDA0002170848350000035
is the normalized EIRP pattern of the horizontal slice.

作为本发明的优选方式三，所述的全球面EIRP数据

Figure BDA0002170848350000036
的计算公式为：As the third preferred mode of the present invention, the global EIRP data
Figure BDA0002170848350000036
The calculation formula is:

Figure BDA0002170848350000037
Figure BDA0002170848350000037

其中，

Figure BDA0002170848350000038
及
Figure BDA0002170848350000039
如式(3)及(4)所示，w3是加权系数，可以取值(0-1)之间，可以调节
Figure BDA00021708483500000310
和
Figure BDA00021708483500000311
所占的比例，hyb是hybrid(混合)的缩写。in,
Figure BDA0002170848350000038
and
Figure BDA0002170848350000039
As shown in equations (3) and (4), w3 is a weighting coefficient, which can be between (0-1) and can be adjusted
Figure BDA00021708483500000310
and
Figure BDA00021708483500000311
The proportion, hyb is the abbreviation of hybrid (mixed).

作为本发明的进一步改进，所述的TRP值计算公式为：As a further improvement of the present invention, the described TRP value calculation formula is:

Figure BDA00021708483500000312
Figure BDA00021708483500000312

其中，

Figure BDA00021708483500000313
为全球面EIRP值
Figure BDA00021708483500000314
in,
Figure BDA00021708483500000313
is the global EIRP value
Figure BDA00021708483500000314

本发明的有源天线TRP快速测量方法，在测量中仅需要进行两个主切面EIRP方向图的测量，利用三维方向图合成公式，即可由两个主切面方向图生成三维EIRP数据，再根据求和公式得到有源天线的TRP值，故可将三维测量降至二维测量。例如，按照1°采样间隔进行采样，传统测量方法需要360*180点，而本发明的测量方法仅需要测量360+360点，不仅极大地减少了采样所需时间，加快了测量速度，而且能够减少误差，提高TRP测量值的精确度。The active antenna TRP fast measurement method of the present invention only needs to measure the EIRP pattern of two principal sections in the measurement, and by using the three-dimensional pattern synthesis formula, the three-dimensional EIRP data can be generated from the two principal section patterns, and then according to the requirement The TRP value of the active antenna can be obtained by the sum formula, so the three-dimensional measurement can be reduced to the two-dimensional measurement. For example, for sampling at a sampling interval of 1°, the traditional measurement method requires 360*180 points, while the measurement method of the present invention only needs to measure 360+360 points, which not only greatly reduces the time required for sampling, but also speeds up the measurement speed. Reduce errors and improve the accuracy of TRP measurements.

附图说明Description of drawings

图1是本发明的有源天线TRP快速测量方法流程图。FIG. 1 is a flow chart of a fast measurement method for active antenna TRP according to the present invention.

具体实施方式Detailed ways

下面结合附图和实施例对本发明的方法进行详细的阐述，以使本领域技术人员更好的理解本发明的技术思想，但本发明的技术思想并不限于具体实施例所描述的内容。The method of the present invention is described in detail below with reference to the accompanying drawings and embodiments, so that those skilled in the art can better understand the technical idea of the present invention, but the technical idea of the present invention is not limited to the content described in the specific embodiments.

本实施例的有源天线TRP快速测量方法，流程如图1所示，具体包括：The method for rapidly measuring the TRP of an active antenna in this embodiment, as shown in FIG. 1, specifically includes:

1、将有源天线安装于待测转台上，依照传统EIRP测量方式连接仪器设备；1. Install the active antenna on the turntable to be tested, and connect the instruments and equipment according to the traditional EIRP measurement method;

2、以1°角度间隔测量主极化水平切面EIRP分布数据，得到

Figure BDA0002170848350000041
2. Measure the EIRP distribution data of the main polarization horizontal section at 1° angular intervals, and obtain
Figure BDA0002170848350000041

(2)以1°角度间隔测量主极化垂直切面EIRP分布数据，得到

Figure BDA0002170848350000042
(2) Measure the EIRP distribution data of the vertical section of the main polarization at 1° angular intervals, and obtain
Figure BDA0002170848350000042

3、计算全球面EIRP值

Figure BDA0002170848350000043
由切面方向图生成三维方向图的公式一般有三种，任何一种都可以计算出
Figure BDA0002170848350000044
3. Calculate the global EIRP value
Figure BDA0002170848350000043
There are generally three formulas for generating a three-dimensional orientation map from a tangential orientation map, any of which can be calculated
Figure BDA0002170848350000044

(1)第一种是求和算法，即：(1) The first is the summation algorithm, namely:

Figure BDA0002170848350000045
Figure BDA0002170848350000045

其中

Figure BDA0002170848350000046
是合成算法结果的符号代表，SA是Sum Algorithm的缩写，下标dB表示EIRP以对数值表示
Figure BDA0002170848350000047
Figure BDA0002170848350000048
表示水平面EIRP方向图，是
Figure BDA0002170848350000049
的函数，
Figure BDA00021708483500000410
是垂直平面EIRP方向图，是θ的函数，Max代表求最大值。in
Figure BDA0002170848350000046
is the symbolic representation of the result of the synthesis algorithm, SA is the abbreviation of Sum Algorithm, and the subscript dB indicates that EIRP is expressed in logarithmic value
Figure BDA0002170848350000047
Figure BDA0002170848350000048
represents the horizontal plane EIRP pattern, is
Figure BDA0002170848350000049
The function,
Figure BDA00021708483500000410
is the EIRP pattern of the vertical plane, which is a function of θ, and Max represents the maximum value.

(2)第二种是加权合成算法，即：(2) The second is the weighted synthesis algorithm, namely:

Figure BDA00021708483500000411
Figure BDA00021708483500000411

其中，

Figure BDA00021708483500000412
是加权合成算法结果的符号代表，we代指weight，k是指数系数，w1与w2为权重系数，in,
Figure BDA00021708483500000412
is the symbolic representation of the result of the weighted synthesis algorithm, we stands for weight, k is the exponential coefficient, w1 and w2 are the weight coefficients,

Figure BDA00021708483500000413
Figure BDA00021708483500000413

下标Un表示归一化EIRP方向图，

Figure BDA00021708483500000414
是垂直切面归一化EIRP方向图、
Figure BDA00021708483500000415
是水平切面归一化EIRP方向图。The subscript Un represents the normalized EIRP pattern,
Figure BDA00021708483500000414
is the normalized EIRP pattern of the vertical section,
Figure BDA00021708483500000415
is the normalized EIRP pattern of the horizontal slice.

(3)第三种是混合合成算法，即：(3) The third is the hybrid synthesis algorithm, namely:

Figure BDA0002170848350000051
Figure BDA0002170848350000051

其中

Figure BDA0002170848350000052
及
Figure BDA0002170848350000053
如式(3)及(4)所示，w3是加权系数，可以取值(0-1)之间，可以调节
Figure BDA0002170848350000054
和
Figure BDA0002170848350000055
所占的比例，hyb是hybrid(混合)的缩写。in
Figure BDA0002170848350000052
and
Figure BDA0002170848350000053
As shown in equations (3) and (4), w3 is a weighting coefficient, which can be between (0-1) and can be adjusted
Figure BDA0002170848350000054
and
Figure BDA0002170848350000055
The proportion, hyb is the abbreviation of hybrid (mixed).

4、得到EIRP随

Figure BDA0002170848350000056
坐标的分布后，即全球面EIRP值
Figure BDA0002170848350000057
利用式(2)即可得到TRP值。4. Get EIRP with
Figure BDA0002170848350000056
After the distribution of coordinates, that is, the global EIRP value
Figure BDA0002170848350000057
The TRP value can be obtained by using the formula (2).

Claims (2)

1.一种有源天线TRP快速测量方法，其特征在于：包括：1. a kind of active antenna TRP fast measurement method is characterized in that: comprise: 将有源天线安装于待测转台上，连接仪器设备；Install the active antenna on the turntable to be tested, and connect the equipment; 测量主极化水平切面EIRP分布数据，得到
Figure FDA0002944201470000011
Measure the EIRP distribution data of the horizontal section of the main polarization, and get
Figure FDA0002944201470000011
 测量主极化垂直切面EIRP分布数据，得到
Figure FDA0002944201470000012
Measure the EIRP distribution data of the vertical section of the main polarization, and get
Figure FDA0002944201470000012
 计算全球面EIRP数据
Figure FDA0002944201470000013
Calculate global EIRP data
Figure FDA0002944201470000013
 根据全球面EIRP数据
Figure FDA0002944201470000014
计算TRP值；According to global EIRP data
Figure FDA0002944201470000014
Calculate the TRP value; 所述全球面EIRP数据
Figure FDA0002944201470000015
采用以下任一方法计算得出：The global EIRP data
Figure FDA0002944201470000015
Calculated using any of the following methods:
Figure FDA0002944201470000016
Figure FDA0002944201470000016
 其中，
Figure FDA0002944201470000017
是合成算法结果的符号代表，SA是Sum Algorithm的缩写，下标dB表示EIRP以对数值表示
Figure FDA0002944201470000018
Figure FDA0002944201470000019
表示水平面EIRP方向图，是
Figure FDA00029442014700000110
的函数，
Figure FDA00029442014700000111
是垂直平面EIRP方向图，是θ的函数；Max代表求最大值；in,
Figure FDA0002944201470000017
is the symbolic representation of the result of the synthesis algorithm, SA is the abbreviation of Sum Algorithm, and the subscript dB indicates that EIRP is expressed in logarithmic value
Figure FDA0002944201470000018
Figure FDA0002944201470000019
represents the horizontal plane EIRP pattern, is
Figure FDA00029442014700000110
The function,
Figure FDA00029442014700000111
is the EIRP pattern of the vertical plane, which is a function of θ; Max represents the maximum value; 或：or:
Figure FDA00029442014700000112
Figure FDA00029442014700000112
 其中，
Figure FDA00029442014700000113
是加权合成算法结果的符号代表，we代指weight，k是指数系数，w1与w2为权重系数，in,
Figure FDA00029442014700000113
is the symbolic representation of the result of the weighted synthesis algorithm, we stands for weight, k is the exponential coefficient, w1 and w2 are the weight coefficients,
Figure FDA00029442014700000114
Figure FDA00029442014700000114
 下标Un表示归一化EIRP方向图，
Figure FDA00029442014700000115
是垂直切面归一化EIRP方向图、
Figure FDA00029442014700000116
是水平切面归一化EIRP方向图；The subscript Un represents the normalized EIRP pattern,
Figure FDA00029442014700000115
is the normalized EIRP pattern of the vertical section,
Figure FDA00029442014700000116
is the normalized EIRP pattern of the horizontal section; 或：or:
Figure FDA00029442014700000117
Figure FDA00029442014700000117
 其中，
Figure FDA00029442014700000118
及
Figure FDA00029442014700000119
如式(3)及(4)所示，w3是加权系数，可以取值0-1之间，可以调节
Figure FDA0002944201470000021
和
Figure FDA0002944201470000022
所占的比例，hyb是hybrid的缩写。in,
Figure FDA00029442014700000118
and
Figure FDA00029442014700000119
As shown in equations (3) and (4), w3 is a weighting coefficient, which can be between 0 and 1, and can be adjusted
Figure FDA0002944201470000021
and
Figure FDA0002944201470000022
The proportion, hyb is the abbreviation of hybrid. 2.根据权利要求1所述的有源天线TRP快速测量方法，其特征在于：所述的TRP值计算公式为：2. active antenna TRP fast measurement method according to claim 1 is characterized in that: described TRP value calculation formula is:
Figure FDA0002944201470000023
Figure FDA0002944201470000023
 其中，
Figure FDA0002944201470000024
为全球面EIRP数据
Figure FDA0002944201470000025
Figure FDA0002944201470000026
为测量点坐标，N和M分别为θ方向及
Figure FDA0002944201470000027
方向采样点数；sinθi为θ方向上第i个采样点的正弦值。in,
Figure FDA0002944201470000024
for global EIRP data
Figure FDA0002944201470000025
Figure FDA0002944201470000026
are the coordinates of the measurement point, N and M are the θ direction and
Figure FDA0002944201470000027
The number of sampling points in the direction; sinθ i is the sine value of the ith sampling point in the θ direction.
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