CN114006663B - Correction method and correction system for improving correction efficiency - Google Patents
Correction method and correction system for improving correction efficiency Download PDFInfo
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- CN114006663B CN114006663B CN202111097483.8A CN202111097483A CN114006663B CN 114006663 B CN114006663 B CN 114006663B CN 202111097483 A CN202111097483 A CN 202111097483A CN 114006663 B CN114006663 B CN 114006663B
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- 238000012937 correction Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 54
- 238000003780 insertion Methods 0.000 claims abstract description 33
- 230000037431 insertion Effects 0.000 claims abstract description 33
- 238000012360 testing method Methods 0.000 claims description 25
- 230000005855 radiation Effects 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a correction method and a correction system for improving correction efficiency, which are characterized in that a correction signal is internally generated to a directional coupler at the joint of a front-end receiving module and a receiving antenna through a broadband radio frequency system, the internal correction of the broadband radio frequency system is finished through a directional coupler back-flowing correction signal system, meanwhile, the insertion loss or gain of the receiving antenna, an antenna housing and the directional coupler is tested, and the correction calculation of the whole system is carried out by loading the internal correction signal amplitude value of the system into a computer processing module, so that the radio frequency correction of the whole system with the receiving antenna and the antenna housing can be carried out only by automatically correcting the system without the requirement of environment, numerous manpower and debugging equipment, and the correction efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a correction method and a correction system for improving correction efficiency.
Background
In general, debugging personnel can only correct the front end receiving module at the front end of the system to correct the system internal channel of the broadband radio frequency system, a correction loop in the front end receiving module is used for carrying out the correction of the broadband radio frequency system by reversing signals from the correction loop in the front end receiving module, and the receiving antenna connected with the front end of the front end receiving module and the receiving antenna cover for protecting the receiving antenna cannot be corrected, so that the whole system with the receiving antenna and the receiving antenna cover is usually required to be corrected under many conditions, an open environment is required to be found, debugging equipment is carried manually, signals are generated in a place far away from the system, the system is processed in the system through the receiving antenna, so that the radio frequency channel is corrected, time and effort are consumed very much, an open and non-shielding environment is required, a lot of manpower is required to carry out the external correction with the debugging equipment, and meanwhile, the environmental requirements are harsh, the multiple demands of manpower and the time consumption of equipment are all such that the working efficiency is very low, and the mass production efficiency is not beneficial.
Disclosure of Invention
The invention aims to provide a correction method and a correction system for improving correction efficiency, which are used for solving the problem of low efficiency when a broadband radio frequency system is corrected at present.
The invention provides a correction method for improving correction efficiency, which comprises the following steps:
step 1, assembling a correction system to a broadband radio frequency system; the broadband radio frequency system comprises a signal processing module, a front-end receiving module, a receiving antenna and an antenna housing which are connected in sequence; the correction system comprises a computer processing module and a directional coupler; the directional coupler is additionally arranged between the front-end receiving module and the receiving antenna; the computer processing module is connected with the signal processing module;
step 2, the signal processing module generates a correction signal, the correction signal is transmitted to the directional coupler through the front end receiving module, and after the correction signal is coupled back to the front end receiving module by the directional coupler, the signal processing module corrects the internal channel of the system to obtain a correction signal amplitude value and transmits the internal correction signal amplitude value to the computer processing module;
step 3, respectively testing the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler, and loading the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler into a computer processing module;
and 4, adding or subtracting the internal correction signal amplitude value by the computer processing module according to the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler to obtain a final correction signal amplitude value.
Furthermore, in step 1, the directional coupler is additionally installed at a connection position between the front-end receiving module and the receiving antenna, which is close to one end of the receiving antenna.
Further, the directional coupler is a radio frequency three-way connector.
Further, the front end receiving module and the two paths of radio frequency cables between the radio frequency three-way connector are equal in length.
Further, the method for testing the insertion loss or gain of the receiving antenna in the step 3 is as follows:
the method comprises the steps of performing a receiving power test on a receiving antenna switching frequency point and an adjusting direction in a darkroom to obtain the distance between the receiving antenna and the radiation source antenna port surface and the power of the radiation source antenna port surface;
according to the distance between the receiving antenna and the radiation source antenna port surface and the power of the radiation source antenna port surface, calculating to obtain the signal intensity when the output power of the radiation source antenna port reaches the receiving antenna through a radio frequency signal space attenuation formula;
the rear end of the receiving antenna is connected with a testing instrument for testing, and the signal intensity obtained by the testing is subtracted from the signal intensity when the output power of the antenna port of the radiation source reaches the receiving antenna, so that the insertion loss or gain of the receiving antenna is obtained.
Further, the method for testing the insertion loss or gain of the radome in the step 3 comprises the following steps:
and carrying out full-frequency-band omnidirectional darkroom test on the radome to obtain the insertion loss of the radome.
The invention also provides a correction system for improving the correction efficiency, which is used for correcting the broadband radio frequency system; the broadband radio frequency system comprises a signal processing module, a front-end receiving module, a receiving antenna and an antenna housing which are connected in sequence; the correction system comprises a computer processing module and a directional coupler;
the directional coupler is additionally arranged between the front-end receiving module and the receiving antenna;
the computer processing module is connected with the signal processing module;
the signal processing module is used for generating a correction signal, transmitting the correction signal to the directional coupler through the front end receiving module, coupling the correction signal back to the front end receiving module through the directional coupler, and correcting an internal channel of the system through the signal processing module to obtain an amplitude value of the correction signal and transmitting the amplitude value of the internal correction signal into the computer processing module;
the computer processing module is used for storing the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler, and adding and subtracting the internal correction signal amplitude value according to the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler to obtain the final correction signal amplitude value.
In the correction system for improving the correction efficiency, the directional coupler is additionally arranged at the joint between the front-end receiving module and the receiving antenna, which is close to one end of the receiving antenna.
In the correction system for improving correction efficiency, the directional coupler is a radio frequency three-way connector.
In the correction system for improving the correction efficiency, two paths of radio frequency cables between the front-end receiving module and the directional coupler are equal in length.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
the invention generates correction signals to the front end receiving module and the directional coupler at the joint of the receiving antenna through the broadband radio frequency system, and the correction signals are fed back to the system through the directional coupler to finish internal correction to the broadband radio frequency system, and meanwhile, the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler are tested, and the correction calculation of the whole system is carried out by loading the correction signals into the computer processing module and combining the internal correction signal amplitude value of the system, so that the radio frequency correction of the whole system with the receiving antenna and the antenna housing can be carried out only by automatically correcting the system without the requirement of environment, numerous manpower and debugging equipment, and the correction efficiency is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly describe the drawings in the embodiments, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of a correction system for improving correction efficiency according to an embodiment of the present invention.
Fig. 2 is a flowchart of a correction method for improving correction efficiency according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1, the present embodiment proposes a correction system for improving correction efficiency, where the correction system is used for correcting a broadband radio frequency system; the broadband radio frequency system comprises a signal processing module, a front-end receiving module, a receiving antenna and an antenna housing which are connected in sequence; the correction system comprises a computer processing module and a directional coupler;
the directional coupler is additionally arranged between the front-end receiving module and the receiving antenna;
the computer processing module is connected with the signal processing module;
the signal processing module is used for generating a correction signal, transmitting the correction signal to the directional coupler through the front end receiving module, coupling the correction signal back to the front end receiving module through the directional coupler, and correcting an internal channel of the system through the signal processing module to obtain an amplitude value of the correction signal and transmitting the amplitude value of the internal correction signal into the computer processing module;
the computer processing module is used for storing the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler, and adding and subtracting the internal correction signal amplitude value according to the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler to obtain the final correction signal amplitude value.
That is, the invention generates correction signal to the front end receiving module and the directional coupler at the joint of the receiving antenna through the broadband radio frequency system, the correction signal is reversed to the system through the directional coupler to finish the internal correction to the broadband radio frequency system, and the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler is tested, and the correction calculation of the whole system is carried out by loading the correction signal amplitude value into the computer processing module and combining the internal correction signal amplitude value of the system, thus the radio frequency correction of the whole system with the receiving antenna and the antenna housing can be carried out only by the automatic correction of the system without the requirement of environment, numerous manpower and debugging equipment, and the correction efficiency is greatly improved.
Based on the above-mentioned correction system, as shown in fig. 2, the correction method for improving correction efficiency of the present embodiment includes the following steps:
step 1, assembling a correction system to a broadband radio frequency system; as can be seen from fig. 1 and the foregoing description, the wideband radio frequency system includes a signal processing module, a front end receiving module, a receiving antenna and a radome, which are sequentially connected; the correction system comprises a computer processing module and a directional coupler; the directional coupler is additionally arranged between the front-end receiving module and the receiving antenna; the computer processing module is connected with the signal processing module;
the directional coupler is additionally arranged at the joint between the front-end receiving module and the receiving antenna and close to one end of the receiving antenna. Generally, the directional coupler may adopt a three-channel rf connector, where two channels of the three-channel rf connector are connected to the front-end receiving module through an rf cable, and are respectively used to receive the correction signal and reverse-flow the correction signal back to the front-end receiving module, and the other channel is connected to the receiving antenna through an rf cable. Preferably, the front end receiving module and the radio frequency three-way connector are equal in length, so that the insertion loss and the phase difference of the two radio frequency cables are not great, and the influence on correction is reduced.
Step 2, the signal processing module generates a correction signal, the correction signal is transmitted to the directional coupler through the front end receiving module, and after the correction signal is coupled back to the front end receiving module by the directional coupler, the signal processing module corrects the internal channel of the system to obtain a correction signal amplitude value and transmits the internal correction signal amplitude value to the computer processing module;
step 3, respectively testing insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler, and loading the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler into a computer processing module:
(1) The method for testing the insertion loss or gain of the receiving antenna comprises the following steps:
the method comprises the steps of performing a receiving power test on a receiving antenna switching frequency point and an adjusting direction in a darkroom to obtain the distance between the receiving antenna and the radiation source antenna port surface and the power of the radiation source antenna port surface;
according to the distance between the receiving antenna and the radiation source antenna port surface and the power of the radiation source antenna port surface, calculating to obtain the signal intensity when the output power of the radiation source antenna port reaches the receiving antenna through a radio frequency signal space attenuation formula; the formula of the spatial attenuation of the radio frequency signal is the prior art, and is not described herein again;
the rear end of the receiving antenna is connected with a testing instrument for testing, and the signal intensity obtained by the testing is subtracted from the signal intensity when the output power of the antenna port of the radiation source reaches the receiving antenna, so that the insertion loss or gain of the receiving antenna is obtained.
(2) The method for testing the insertion loss or gain of the antenna housing comprises the following steps:
and carrying out full-frequency-band omnidirectional darkroom test on the radome to obtain the insertion loss of the radome.
(3) The insertion loss or gain of the directional coupler (radio frequency tee connector) can be obtained by testing in advance by adopting a plurality of conventional methods.
And 4, adding or subtracting the internal correction signal amplitude value by the computer processing module according to the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler to obtain a final correction signal amplitude value. Because the insertion loss or gain of the receiving antenna and the antenna housing is calculated, the final corrected signal amplitude value is the corrected signal amplitude value of the broadband radio frequency system comprising the receiving antenna and the antenna housing in the full frequency band in all directions, and powerful guarantee is provided for accurate direction finding of the broadband radio frequency system.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A correction method for improving correction efficiency, comprising the steps of:
step 1, assembling a correction system to a broadband radio frequency system; the broadband radio frequency system comprises a signal processing module, a front-end receiving module, a receiving antenna and an antenna housing which are connected in sequence; the correction system comprises a computer processing module and a directional coupler; the directional coupler is additionally arranged between the front-end receiving module and the receiving antenna; the computer processing module is connected with the signal processing module;
step 2, the signal processing module generates a correction signal, the correction signal is transmitted to the directional coupler through the front end receiving module, and after the correction signal is coupled back to the front end receiving module by the directional coupler, the signal processing module corrects the internal channel of the system to obtain a correction signal amplitude value and transmits the internal correction signal amplitude value to the computer processing module;
step 3, respectively testing the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler, and loading the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler into a computer processing module;
step 4, the computer processing module adds and subtracts the amplitude value of the internal correction signal according to the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler to obtain the final amplitude value of the correction signal;
the front end receives two paths of radio frequency cables equal in length between the module and the radio frequency tee connector;
the method for testing the insertion loss or gain of the receiving antenna in the step 3 comprises the following steps:
the method comprises the steps of performing a receiving power test on a receiving antenna switching frequency point and an adjusting direction in a darkroom to obtain the distance between the receiving antenna and the radiation source antenna port surface and the power of the radiation source antenna port surface;
according to the distance between the receiving antenna and the radiation source antenna port surface and the power of the radiation source antenna port surface, calculating to obtain the signal intensity when the output power of the radiation source antenna port reaches the receiving antenna through a radio frequency signal space attenuation formula;
the rear end of the receiving antenna is connected with a testing instrument for testing, and the signal intensity obtained by the testing is subtracted from the signal intensity when the output power of the antenna port of the radiation source reaches the receiving antenna, so that the insertion loss or gain of the receiving antenna is obtained.
2. The method according to claim 1, wherein the directional coupler in step 1 is additionally installed at a connection between the front-end receiving module and the receiving antenna near one end of the receiving antenna.
3. The calibration method for improving calibration efficiency according to claim 1 or 2, wherein the directional coupler is a radio frequency three-way connector.
4. The method for improving calibration efficiency according to claim 1, wherein the method for testing the insertion loss or gain of the radome in step 3 comprises:
and carrying out full-frequency-band omnidirectional darkroom test on the radome to obtain the insertion loss of the radome.
5. The correction system for improving the correction efficiency is characterized by being used for correcting a broadband radio frequency system; the broadband radio frequency system comprises a signal processing module, a front-end receiving module, a receiving antenna and an antenna housing which are connected in sequence; the correction system comprises a computer processing module and a directional coupler;
the directional coupler is additionally arranged between the front-end receiving module and the receiving antenna;
the computer processing module is connected with the signal processing module;
the signal processing module is used for generating a correction signal, transmitting the correction signal to the directional coupler through the front end receiving module, coupling the correction signal back to the front end receiving module through the directional coupler, and correcting an internal channel of the system through the signal processing module to obtain an amplitude value of the correction signal and transmitting the amplitude value of the internal correction signal into the computer processing module;
the computer processing module is used for storing the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler and adding and subtracting the internal correction signal amplitude value according to the insertion loss or gain of the receiving antenna, the antenna housing and the directional coupler to obtain a final correction signal amplitude value;
and two paths of radio frequency cables between the front-end receiving module and the directional coupler are equal in length.
6. The system of claim 5, wherein the directional coupler is attached to a connection between the front-end receiving module and the receiving antenna near one end of the receiving antenna.
7. The calibration system of claim 5 or 6, wherein the directional coupler is a radio frequency tee connector.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012021536A1 (en) * | 2010-08-09 | 2012-02-16 | Baron Services, Inc. | Method and apparatus for calibration and accuracy analysis of a dual polarimetric nexrad radar system |
| CN113206697A (en) * | 2021-03-19 | 2021-08-03 | 中国电子科技集团公司第二十九研究所 | Broadband radio frequency receiving and processing system device and self-checking method thereof |
| CN113253190A (en) * | 2021-04-22 | 2021-08-13 | 中国电子科技集团公司第二十九研究所 | Method for correcting full-band amplitude of radio frequency channel of distributed system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8131232B2 (en) * | 2009-10-09 | 2012-03-06 | Texas Instruments Incorporated | Method and apparatus for antenna tuning |
| CN102694758B (en) * | 2012-04-11 | 2015-02-04 | 上海聚星仪器有限公司 | Online calibration method for radio frequency front-end receiving-transmitting link |
| CN103856235B (en) * | 2012-11-28 | 2016-06-22 | 联发科技（新加坡）私人有限公司 | The method of wireless communication unit, integrated circuit and calibration transceiver |
| CN105790860B (en) * | 2014-12-25 | 2020-12-29 | 中兴通讯股份有限公司 | Antenna coupling calibration system |
| CN105390814B (en) * | 2015-10-18 | 2018-06-26 | 中国电子科技集团公司第十研究所 | Active phase array antenna with internal calibration network |
| WO2019209903A1 (en) * | 2018-04-27 | 2019-10-31 | Commscope Technologies Llc | Calibration circuits for beam-forming antennas and related base station antennas |
| CN111726173B (en) * | 2020-06-29 | 2022-02-01 | 中国电子科技集团公司第五十四研究所 | Internal calibration system and method for transmitting-receiving duplex phased array antenna |
| CN112073097B (en) * | 2020-08-20 | 2021-12-28 | 东南大学 | Hybrid beamforming receiver array self-calibration device |
-
2021
- 2021-09-18 CN CN202111097483.8A patent/CN114006663B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012021536A1 (en) * | 2010-08-09 | 2012-02-16 | Baron Services, Inc. | Method and apparatus for calibration and accuracy analysis of a dual polarimetric nexrad radar system |
| CN113206697A (en) * | 2021-03-19 | 2021-08-03 | 中国电子科技集团公司第二十九研究所 | Broadband radio frequency receiving and processing system device and self-checking method thereof |
| CN113253190A (en) * | 2021-04-22 | 2021-08-13 | 中国电子科技集团公司第二十九研究所 | Method for correcting full-band amplitude of radio frequency channel of distributed system |
Non-Patent Citations (3)
| Title |
|---|
| A numerical investigation of the effects on base station antenna due to cuboid antenna-radome;Yu-Ting Wu 等;《 2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)》;全文 * |
| 一种圆形智能天线阵列与校正网络的设计;张福顺 等;《电波科学学报》;全文 * |
| 星载相控阵天线与校准网络技术研究;卓超;《中国优秀硕士学位论文全文数据库》;全文 * |
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