CN108196232B - Method for calibrating receiving channel of phased array radar by solar method - Google Patents
Method for calibrating receiving channel of phased array radar by solar method Download PDFInfo
- Publication number
- CN108196232B CN108196232B CN201711380438.7A CN201711380438A CN108196232B CN 108196232 B CN108196232 B CN 108196232B CN 201711380438 A CN201711380438 A CN 201711380438A CN 108196232 B CN108196232 B CN 108196232B
- Authority
- CN
- China
- Prior art keywords
- phased array
- amplitude
- receiving channel
- phase
- antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
Abstract
The invention discloses a method for calibrating a receiving channel of a solar phased array radar, which comprises the following steps: aligning a phased array antenna to the sun, receiving solar radiation electromagnetic waves through the antenna, amplifying the solar radiation electromagnetic waves through a receiving channel, acquiring N-channel signals by a signal processor, accumulating the signals, measuring the amplitude and the phase of the signals to obtain N groups of amplitude, phase values Ai and Qi, i =1 and 2 … 64, acquiring the signal frequency F by the signal processor, accumulating the frequency F, and adjusting the amplitude and the phase of 63 channels to be consistent with the first channel by taking A1 and Q1 as references, namely A1= Ai, Q1= Qi, i =2 and 3 … 64 through an amplitude attenuator and a phase shifter. The invention can solve the technical problem of utilizing solar radiation electromagnetic waves to calibrate the antenna and calibrate the receiving channel of the phased array radar.
Description
Technical Field
The invention relates to a calibration technology of a phased array radar.
Background
Since sunlight contains electromagnetic waves of various wavelengths, in the field of radar, solar radiation is often used as a plane wave source to calibrate the beam width, antenna gain and the like of a radar antenna.
Disclosure of Invention
The invention aims to provide a calibration method for a receiving channel of a phased array radar by a solar method, which aims to solve the technical problem that an antenna is calibrated and the receiving channel of the phased array radar is calibrated by utilizing solar radiation electromagnetic waves.
In order to achieve the above purpose, the method for calibrating the receiving channel of the solar phased array radar of the invention comprises the following steps: aligning a phased array antenna to the sun, receiving solar radiation electromagnetic waves through the antenna, amplifying the solar radiation electromagnetic waves through a receiving channel, acquiring 64 channels of signals by a signal processor, accumulating the signals, measuring the amplitude and the phase of the signals to obtain 64 groups of amplitude, phase values Ai, Qi, i =1,2 … 64, acquiring the signal frequency F by the signal processor, accumulating the frequency F, and adjusting the amplitude and the phase of 63 channels to be consistent with the first channel by taking A1 and Q1 as references, namely A1= Ai, Q1= Qi, i =2, and 3 … 64 through an amplitude attenuator and a phase shifter.
The invention has the advantages and positive effects that: by utilizing solar radiation electromagnetic waves, the antenna is calibrated, and the phased array radar receiving channel is calibrated conveniently and efficiently.
Drawings
FIG. 1 is a schematic diagram of the calibration of the present invention using solar radiation.
Fig. 2 is a block diagram of the operating principle of the circuit of the present invention.
Fig. 3 is a flow chart of the operation of the present invention.
Numbering in the figures: 1. sun, 2, sunlight, 3, phased array radar antenna.
Detailed Description
The working principle and the calibration method of the invention are as follows: referring to fig. 1, the phased array antenna is aimed at the sun. Referring to fig. 2, the solar radiation electromagnetic wave is received by the antenna, amplified by the receiving channel, and then collected by the signal processor through N (for example, 64) channels. Referring to fig. 3, after accumulating M times (e.g., M = 1000), the amplitude and phase of the signal are measured to obtain N (e.g., 64) sets of amplitude, phase values Ai, Qi (i =1,2 … 64), and the signal processor acquires the signal frequency f, e.g., 50 MHZ. The accumulated frequency is F, e.g. 50 KHZ.
The amplitudes and phases of the 63 channels are adjusted to be consistent with those of the first channel by an amplitude attenuator and a phase shifter by taking A1 and Q1 as references. I.e. a1= Ai, Q1= Qi (i =2,3 …).
Claims (1)
1. The method for calibrating the receiving channel of the phased array radar by the solar method comprises the following steps: aligning a phased array antenna to the sun, receiving solar radiation electromagnetic waves through the antenna, amplifying the solar radiation electromagnetic waves through a receiving channel, acquiring 64 channels of signals by a signal processor, accumulating the signals, measuring the amplitude and the phase of the signals to obtain 64 groups of amplitude, phase values Ai, Qi, i =1,2 … 64, acquiring the signal frequency F by the signal processor, accumulating the frequency F, and adjusting the amplitude and the phase of 63 channels to be consistent with the first channel by taking A1 and Q1 as references, namely A1= Ai, Q1= Qi, i =2, and 3 … 64 through an amplitude attenuator and a phase shifter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380438.7A CN108196232B (en) | 2017-12-20 | 2017-12-20 | Method for calibrating receiving channel of phased array radar by solar method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380438.7A CN108196232B (en) | 2017-12-20 | 2017-12-20 | Method for calibrating receiving channel of phased array radar by solar method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108196232A CN108196232A (en) | 2018-06-22 |
| CN108196232B true CN108196232B (en) | 2021-09-07 |
Family
ID=62577132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711380438.7A Active CN108196232B (en) | 2017-12-20 | 2017-12-20 | Method for calibrating receiving channel of phased array radar by solar method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108196232B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597039B (en) * | 2018-12-24 | 2023-08-25 | 浙江宜通华盛科技有限公司 | Method for measuring amplitude phase of phased array radar receiving channel by lifting method |
| CN110907904B (en) * | 2019-11-14 | 2021-11-05 | 成都信息工程大学 | Solar method azimuth beam width correction method |
| CN113030596B (en) * | 2021-04-19 | 2022-05-31 | 山东大学 | Solar radio observation instrument, system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2473663A (en) * | 2009-09-21 | 2011-03-23 | Cambridge Consultants | Radar |
| CN102890271A (en) * | 2012-10-25 | 2013-01-23 | 北京理工大学 | Correction method for amplitude and phase consistency of external radiation source radar array antenna |
| CN107390192A (en) * | 2017-09-20 | 2017-11-24 | 雷象科技（北京）有限公司 | Phased array weather radar fast amplitude, phase equalization measuring method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR403901A0 (en) * | 2001-03-28 | 2001-04-26 | Solar Systems Pty Ltd | Solar tracking system |
| CN102692568A (en) * | 2012-06-12 | 2012-09-26 | 北京爱尔达电子设备有限公司 | Antenna beamwidth calibration method and device with sun as signal source |
| CN203101525U (en) * | 2012-06-12 | 2013-07-31 | 北京爱尔达电子设备有限公司 | An antenna beamwidth calibration device using the sun as a signal source |
| CN105137407B (en) * | 2015-10-08 | 2017-06-16 | 南京信息工程大学 | A kind of dual-polarization weather radar ZDR online calibration methods and device |
| CN106405583A (en) * | 2016-11-03 | 2017-02-15 | 中国科学院云南天文台 | Research and early warning platform for influence on navigation signals caused by solar radio burst, and method of research and early warning platform |
-
2017
- 2017-12-20 CN CN201711380438.7A patent/CN108196232B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2473663A (en) * | 2009-09-21 | 2011-03-23 | Cambridge Consultants | Radar |
| CN102890271A (en) * | 2012-10-25 | 2013-01-23 | 北京理工大学 | Correction method for amplitude and phase consistency of external radiation source radar array antenna |
| CN107390192A (en) * | 2017-09-20 | 2017-11-24 | 雷象科技（北京）有限公司 | Phased array weather radar fast amplitude, phase equalization measuring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108196232A (en) | 2018-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108196232B (en) | Method for calibrating receiving channel of phased array radar by solar method | |
| CN102545935B (en) | Calibration receiving device and calibration receiving method of radio frequency simulation system | |
| CN102707275B (en) | Digital processing method of altimeter of linear frequency modulation continuous wave radar | |
| CN104360329B (en) | Intensity calibrating method of all-digital array phased-array weather radar | |
| CN102890271B (en) | Correction method for amplitude and phase consistency of external radiation source radar array antenna | |
| CN109683146B (en) | Phased array transmission calibration method based on orthogonal coding waveform | |
| Domnin et al. | Kharkiv incoherent scatter facility | |
| CN102520419A (en) | Receiving system and receiving method for GNSS (global navigation satellite system) sea reflecting signal | |
| CN102647241B (en) | Non-coherent detection system and method for short-wave broad-band channel | |
| CN107976667A (en) | A kind of APD detection devices for Full wave shape measurement laser radar | |
| CN108254725B (en) | Cyclic calibration method for transmitting channel of phased array radar | |
| RU2015140136A (en) | METHOD FOR MONITORING THE REINFORCEMENT COEFFICIENT AND ZERO MULTI-PIXEL PHOTON COUNTER AND LIGHT MEASUREMENT SYSTEM IMPLEMENTING THE INDICATED METHOD | |
| CN104501967A (en) | Wide-frequency-band radiation signal multi-channel parallel output measuring method and system thereof | |
| CN103454620B (en) | Tracking-type active radar calibrator based on transmitted signal reestablishing system | |
| CN104678364B (en) | S-band passive radar interception receiver and signal processing method thereof based on FPGA (Field Programmable Gate Array) | |
| CN104270148A (en) | Broadband digital fixed-amplitude multi-system radio frequency signal source module | |
| CN103969631A (en) | System delay calibrating method and device for satellite-borne microwave radar | |
| RU2012145678A (en) | ACTIVE ANTENNA CALIBRATION METHOD | |
| Hu et al. | Antenna calibration and digital beam forming technique of the digital array radar | |
| CN104819952A (en) | Method and system for measuring polarization characteristics of material at terahertz wave band | |
| CN205003282U (en) | Digital UHF doppler radar device | |
| CN106100759B (en) | A kind of method for measuring active phase array antenna noise temperature | |
| EP2257006A3 (en) | Signal processing device, method and reception system for adjusting a measured power spectrum | |
| CN112859021B (en) | Method and system for testing full-link dynamic range and sensitivity of phased array radar | |
| CN104155665A (en) | High-precision channel measurement device based on navigation signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |