CN113595657A - Phase calibration method and device for radio measurement and control equipment based on solar noise - Google Patents
Phase calibration method and device for radio measurement and control equipment based on solar noise Download PDFInfo
- Publication number
- CN113595657A CN113595657A CN202110618322.2A CN202110618322A CN113595657A CN 113595657 A CN113595657 A CN 113595657A CN 202110618322 A CN202110618322 A CN 202110618322A CN 113595657 A CN113595657 A CN 113595657A
- Authority
- CN
- China
- Prior art keywords
- value
- azimuth
- phase
- angle
- initial
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention relates to a radio measurement and control equipment phase calibration method and a device based on solar noise, wherein the method comprises the following steps: determining an initial azimuth angle and an initial pitching angle of the antenna pointing to the center of the sun, and controlling the antenna to point to the center of the sun; adjusting the direction of the antenna to obtain an azimuth angle deviation value and a pitching angle deviation value which meet preset conditions; carrying out offset setting on the antenna, and respectively carrying out phase correction under the azimuth angle deviation value and the pitching angle deviation value to obtain an azimuth phase correction value and a pitching phase correction value; and updating the azimuth value according to the azimuth phase correction value, and updating the pitch phase value according to the pitch phase correction value. The invention uses the sun to replace a beacon source on the calibration tower to realize phase calibration, realizes the tower-free phase calibration of the radio measurement and control equipment, and solves the difficulties that the calibration tower of the large-caliber radio measurement and control equipment has high construction cost and is difficult to realize.
Description
Technical Field
The invention relates to the technical field of radio measurement and control, in particular to a phase calibration method and a phase calibration device of radio measurement and control equipment based on solar noise.
Background
In telemetry, an amplitude monopulse mechanism is often employed, which causes phase disparity between the sum and difference channels to cause: (1) the angular error orientation sensitivity is reduced; (2) cross coupling will be brought in the two-channel single pulse angle tracking system; (3) when the phases before the sum and difference device are not consistent, an angle measurement error is introduced. Therefore, it is necessary to perform "phase correction" so that the phase difference between the sum and difference signals becomes zero.
The calibration method of the radio measurement and control equipment commonly used at present mainly comprises a calibration tower method, a radio star method, a satellite method and the like. The calibration tower method is a traditional phase calibration method, namely, a beacon antenna is arranged on a calibration tower, an antenna electric axis is aligned with the beacon antenna, a sum channel and a difference channel of an angle tracking receiver output signals, the phase difference of the sum channel and the difference channel is measured, and the phase of a certain path is adjusted to be zero. The calibration tower method is suitable for multi-band near-field calibration, and the calibration result is accurate, but because the far-field conditions of different-caliber antennas are different, the calibration tower has certain requirements on the height and distance of the calibration tower, and the calibration tower meeting the far-field calibration conditions of the large-caliber antenna is required to be built, so that the calibration tower method is not easy to meet the test requirements of the large-caliber antenna, and the calibration tower method is not only high in cost but also difficult to realize. For example, in a certain telemetry system, the antenna aperture is 25m, and a calibration tower with the height of 202m needs to be built at a position with the distance of 9615m according to far-field conditions, so that the calibration method is unrealistic in feasibility and implementation cost, and therefore a large-aperture radio measurement and control equipment test calibration scheme without the calibration tower needs to be found. The satellite method utilizes the characteristic of the full-phase radiation power of a synchronous satellite and uses a synchronous satellite transmission signal as a beacon signal to correct the phase. The signal of the synchronous satellite is a phase modulation signal, which is equivalent to a single carrier for radio measurement and control equipment, and can carry out self-tracking phase correction, and the phase correction result is more accurate. However, the frequency point of the geostationary satellite is fixed, the phase rotation is single, and known resources are few, for example, a geostationary satellite only has a single left-handed phase modulation signal with a certain fixed point frequency, and cannot meet the requirements of different point frequencies of various test tasks, so the satellite method is generally suitable for checking the calibration result. In the radio star method, a beacon source on a calibration tower is replaced by a radio star in the air to realize phase calibration. The radio star method has the characteristics of all weather, wide distribution, rich resources and accurate and known ephemeris, and radio star noise is white noise and can cover a plurality of frequency bands. However, due to the high requirements on the system performance of the equipment, the radio measurement and control equipment needs to select a proper radio star to perform calibration work by combining the performance of the radio measurement and control equipment. The radio star calibration usually adopts a radio source such as a rear seat with stable radiation flow density, but is only suitable for an extra-large-aperture antenna due to long distance, and the application range is limited.
Disclosure of Invention
In order to solve the technical problem or at least partially solve the technical problem, the invention provides a radio measurement and control equipment phase calibration method and device based on solar noise.
In a first aspect, the present invention provides a phase calibration method for a radio measurement and control device based on solar noise, including:
determining an initial azimuth angle and an initial pitch angle of an antenna pointing to the center of the sun, and controlling the antenna to point to the center of the sun according to the initial azimuth angle and the initial pitch angle;
on the basis of the initial azimuth angle and the initial pitch angle, the direction of the antenna is adjusted to obtain an azimuth angle deviation value and a pitch angle deviation value which meet preset conditions;
according to the azimuth angle deviation value and the pitch angle deviation value, carrying out offset setting on the antenna, and respectively carrying out phase correction under the azimuth angle deviation value and the pitch angle deviation value to obtain an azimuth phase correction value and a pitch phase correction value;
and updating the azimuth value according to the azimuth phase correction value, and updating the pitch phase value according to the pitch phase correction value.
In a second aspect, the present invention provides a phase calibration apparatus for radio measurement and control equipment based on solar noise, including:
the determining module is used for determining an initial azimuth angle and an initial pitch angle of the antenna pointing to the center of the sun and controlling the antenna to point to the center of the sun according to the initial azimuth angle and the initial pitch angle;
the adjusting module is used for adjusting the pointing direction of the antenna on the basis of the initial azimuth angle and the initial pitch angle to obtain an azimuth angle deviation value and a pitch angle deviation value which meet preset conditions;
the phase calibration module is used for carrying out offset setting on the antenna according to the azimuth angle deviation value and the pitch angle deviation value, and respectively carrying out phase calibration under the azimuth angle deviation value and the pitch angle deviation value to obtain an azimuth phase calibration value and a pitch phase calibration value;
and the updating module is used for updating the azimuth value according to the azimuth phase correction value and updating the pitch phase value according to the pitch phase correction value.
The phase calibration method of the radio measurement and control equipment provided by the invention uses the sun to replace a beacon source on a calibration tower to realize phase calibration, realizes tower-free phase calibration of the radio measurement and control equipment, and solves the problems of high construction cost and difficult realization of the calibration tower of the large-caliber radio measurement and control equipment. The sun is used as the radio source with the strongest space, has the advantages of wide frequency band, high strength, position predictability and the like, is suitable for serving as a calibration signal source, can meet the requirements of different point frequencies of various test tasks, is suitable for large-aperture antennas, and has wide application range.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic view of the sun and antenna of the present invention;
fig. 2 is a schematic flow chart of a phase calibration method for a radio measurement and control device for solar noise according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
With the deep research of solar radio astronomy in recent years and the application of a new generation centimeter wave and decimetric wave solar image instrument in China, solar noise is deeply known, a more accurate radiation model is established, and simultaneously, the radio calibration application of the solar noise is possible based on the theory and application research of the solar noise.
The sun is always the key point of research as the strongest space radio source, has the advantages of wide frequency band, high strength, predictable position and the like, and is suitable for serving as a calibration signal source. The feasibility analysis of the sun as a testing calibration signal source of the radio measurement and control equipment in the target range is carried out, the solar phase calibration principle is researched, the feasibility of the solar phase calibration is obtained, a set of radio measurement and control equipment phase calibration scheme based on solar noise is established, the sun replaces a beacon source on a calibration tower to realize the phase calibration, the tower-free phase calibration of the radio measurement and control equipment can be realized, and the difficulty that the calibration tower of the large-caliber radio measurement and control equipment is high in construction cost and difficult to realize is solved.
The invention provides a radio measurement and control equipment phase calibration method based on solar noise, which comprises the following steps of:
s110, determining an initial azimuth angle and an initial pitch angle of the antenna pointing to the center of the sun, and controlling the antenna to point to the center of the sun according to the initial azimuth angle and the initial pitch angle;
it will be appreciated that the sun here replaces the beacon source on the calibration tower to effect phase calibration.
In a specific implementation, in S110, an initial azimuth angle and an initial elevation angle of the antenna pointing to the center of the sun may be calculated according to the three-axis coordinate data of the antenna and by using the radio star position calculation module.
Wherein the three-axis coordinate data includes longitude, latitude, and altitude.
Wherein, the effect of radio star position calculation module is: and calculating the azimuth angle and the pitching angle of the antenna relative to the sun according to the three-axis coordinate data of the antenna. In this step, the azimuth angle calculated by the radio star position calculation module is used as an initial azimuth angle, and the pitch angle calculated by the radio star position calculation module is used as an initial pitch angle.
It can be understood that after the initial azimuth angle and the initial pitch angle are obtained through calculation, the azimuth angle and the pitch angle of the antenna are adjusted according to the initial azimuth angle and the initial pitch angle, namely, the antenna is controlled to point to the center of the sun.
S120, on the basis of the initial azimuth angle and the initial pitch angle, adjusting the direction of the antenna to obtain an azimuth angle deviation value and a pitch angle deviation value which meet preset conditions;
it can be understood that, in order to ensure the accuracy of single phase correction, the azimuth angle deviation value and the pitch angle deviation value which meet the preset conditions need to be determined.
It will be appreciated that the azimuth angle bias value and the pitch angle bias value do not exceed the beamwidth of the device.
In specific implementation, the preset conditions may include: the antenna is unchanged in elevation angle, and the difference between the signal power corresponding to the positive deflection of the azimuth angle deflection value on the basis of the initial azimuth angle and the signal power corresponding to the negative deflection of the azimuth angle deflection value on the basis of the initial azimuth angle is smaller than a preset value.
Wherein, the preset value can be selected according to the requirement, such as 0.5 dB.
It can be understood that, on the basis of the initial azimuth angle, the azimuth of the antenna is subjected to positive offset by a certain angle and negative offset by a certain angle, the difference between the signal power of the antenna during positive offset and negative offset is required to be smaller than a preset value, the positive offset angle and the negative offset angle are the azimuth angle offset value, and the positive offset angle and the negative offset angle are the same.
For example, when the azimuth angle of the antenna is biased positively by 5 offsets and negatively by 5 offsets, the difference between the signal powers can be ensured to be less than 0.5 dB.
It will be appreciated that the pitch angle of the antenna remains unchanged at the initial pitch angle when the azimuth angle is biased positively or negatively.
In specific implementation, the preset conditions may further include: the antenna is unchanged in azimuth angle, and the difference between the signal power corresponding to the positive deflection of the pitch angle deflection value on the basis of the initial pitch angle and the signal power corresponding to the negative deflection of the pitch angle deflection value on the basis of the initial pitch angle is smaller than a preset value.
It can be understood that, on the basis of the initial pitching angle, the pitching of the antenna is positively biased by a certain angle and negatively biased by a certain angle, the difference between the signal power of the antenna when the antenna is positively biased and negatively biased needs to be smaller than a preset value, the positively biased angle and the negatively biased angle are the pitching angle biased value, and the positively biased angle and the negatively biased angle are the same.
For example, when the pitch angle of the antenna is biased positively by 3 offsets and negatively by 3 offsets, the difference between the signal powers can be ensured to be less than 0.5 dB.
It will be appreciated that when the pitch angle is biased positively or negatively, the azimuth angle of the antenna remains unchanged at the initial pitch angle.
In the step, an azimuth angle deviation value and a pitching angle deviation value which meet preset conditions are determined through fine adjustment of the direction of the antenna.
S130, performing offset setting on the antenna according to the azimuth angle deviation value and the pitch angle deviation value, and performing phase correction under the azimuth angle deviation value and the pitch angle deviation value respectively to obtain an azimuth phase correction value and a pitch phase correction value;
for example, offset setting is performed on the electronic device according to the azimuth angle deviation value and the pitch angle deviation value determined in step S120, that is, the azimuth offset is configured as the azimuth angle deviation value determined in step S120, and the pitch offset is configured as the pitch angle deviation value in step S120, so that the electronic device performs phase correction under the azimuth angle deviation value and performs phase correction under the pitch angle deviation value.
In a specific implementation, the step S130 of performing the phase calibration under the azimuth angle deviation value and under the pitch angle deviation value respectively may include:
s131, keeping the pitching angle of the antenna at the initial pitching angle, and respectively performing phase correction when the antenna performs correction of an azimuth angle deviation value on the basis of the initial azimuth angle and performs negative deviation of the azimuth angle deviation value on the basis of the initial azimuth angle to obtain an azimuth correction deviation phase correction value and an azimuth negative deviation phase correction value;
that is to say, the pitching angle of the antenna is kept unchanged at the initial pitching angle, the antenna is subjected to correction of the azimuth angle deviation value on the basis of the initial azimuth angle, and at the moment, the phase is corrected to obtain an azimuth correction deviation phase correction value; and carrying out negative bias of the azimuth angle deviation value on the antenna on the basis of the initial azimuth angle to obtain an azimuth negative bias phase correction value.
S132, determining the azimuth correction phase value according to the azimuth correction offset correction phase value and the azimuth negative offset correction phase value;
in a specific implementation, the azimuth correction offset phase value and the azimuth negative correction offset phase value may be averaged to obtain the azimuth correction phase value.
S133, maintaining the azimuth angle of the antenna at the initial azimuth angle, and respectively performing phase correction when the antenna performs correction of a deflection value of a pitch angle on the basis of the initial pitch angle and performs negative deflection of the deflection value of the pitch angle on the basis of the initial pitch angle to obtain a pitch correction deflection phase correction value and a pitch negative deflection phase correction value;
that is to say, the azimuth angle of the antenna is kept unchanged at the initial azimuth angle, the antenna is subjected to correction of the deflection value of the pitch angle on the basis of the initial pitch angle, and at the moment, the phase is corrected to obtain a correction value of the pitch correction phase; and carrying out negative deflection of the deflection value of the pitching angle on the basis of the initial pitching angle of the antenna, and carrying out phase correction at the moment to obtain a negative deflection phase correction value of the pitching angle.
And S134, determining the pitching phase correction value according to the pitching offset correction phase value and the pitching negative offset correction phase value.
In a specific implementation, the pitch positive offset correction value and the pitch negative offset correction value may be averaged to obtain the pitch correction value.
The above steps S131 to S134 are directed to a phase calibration process to obtain a group of phase calibration results, and in order to optimize the phase calibration results, multiple phase calibrations may be performed, followed by averaging. By combining the influence analysis of the solar polarization angle and the spread source effect on the phase calibration result, the sun can be regarded as a point source target model when the beam width of the antenna of the radio measurement and control equipment is greater than the solar angle diameter; when the beam width is smaller than the solar angular diameter, the sun must be considered as a non-point source target model. Considering the solar spread source effect and the polarization change, the solar phase correction can be divided into the following two cases:
(1) wide beam antenna (theta)3dBPhase correction scheme for not less than 0.5 DEG
Due to the precision of a single correction of the sun by the sun's movements (e.g. bursts, black seeds, etc.)Prime) with a precision of about 12 deg., corresponding to a cross-coupling of about 1/5. To further optimize the phase calibration result, multiple phase calibrations may be performed in step S130, and multiple sets of azimuth phase calibration values and pitch phase calibration values are obtained and then averaged separately. Of course, the azimuth difference slope and the pitch difference slope may be included in each set of the phase correction results in addition to the azimuth phase correction value and the pitch phase correction value. Suppose that the result of the i-th phase correction is (θ)Ai，kAi，θEi，kEi) Then the final phase calibration result is:
in the formula, n is the total number of phase correction times, and n is more than or equal to 5; thetaACorrecting a phase value for the azimuth; k is a radical ofAIs the azimuth difference slope; thetaEA phase correction value for pitch; k is a radical ofEIs the pitch difference slope. n is more than or equal to 5, thereby ensuring the fruit precision of the solar school phase<Cross coupling is better than 1/5 at 10 deg.. Because the cross coupling is less than 1/5 and the phase correction accuracy is better than + -12 deg. in the tracking system, the system can track reliably, and when the cross coupling is more than 1/5 and less than 1/3 and the phase correction accuracy is better than + -17 deg., the system can track normally but the time for the system to capture the target is lengthened.
(2) Narrow beam antenna (theta)3dBLess than or equal to 0.5 degree) phase correction scheme
For a narrow-wave antenna, the precision of single phase correction of the sun is not only greatly influenced by the motion of the sun (such as explosion, black seed and other factors), but also the sun cannot be considered as a point source and is also related to the change of the polarization angle generated by the autorotation motion of the earth, the precision of single phase correction is poor, and the corresponding cross coupling can exceed 1/3. Therefore, the phase must be calibrated and averaged many times during the day. The phase correction is carried out every 2h from 10 th to 16 th on the ith day, the total time of the phase correction results is 4 times in one day, and the jth phase correction result is (theta)Aij，kAij，θEij，kEij) (j is more than or equal to 1 and less than or equal to 4), and the final phase correction result is as follows:
wherein n is the total number of days of phase correction. When n is more than or equal to 3, the sun phase correction scheme aiming at the narrow beam antenna can be ensured, and the phase correction precision is equivalent to the antenna result that the beam width is larger than the solar angular diameter.
And S140, updating the azimuth value according to the azimuth phase correction value, and updating the pitch phase value according to the pitch phase correction value.
It will be appreciated that after updating the phase angle and pitch angle, the signal tracking mode may be entered.
The phase calibration method of the radio measurement and control equipment provided by the invention realizes phase calibration by replacing a beacon source on a calibration tower with the sun, realizes tower-free phase calibration of the radio measurement and control equipment, and solves the problems of high construction cost and difficult realization of the calibration tower of the large-caliber radio measurement and control equipment. The sun is used as the radio source with the strongest space, has the advantages of wide frequency band, high strength, position predictability and the like, is suitable for serving as a calibration signal source, can meet the requirements of different point frequencies of various test tasks, is suitable for large-aperture antennas, and has wide application range.
In a second aspect, the present invention provides a phase calibration apparatus for radio measurement and control equipment based on solar noise, including:
the determining module is used for determining an initial azimuth angle and an initial pitch angle of the antenna pointing to the center of the sun and controlling the antenna to point to the center of the sun according to the initial azimuth angle and the initial pitch angle;
the adjusting module is used for adjusting the pointing direction of the antenna on the basis of the initial azimuth angle and the initial pitch angle to obtain an azimuth angle deviation value and a pitch angle deviation value which meet preset conditions;
the phase calibration module is used for carrying out offset setting on the antenna according to the azimuth angle deviation value and the pitch angle deviation value, and respectively carrying out phase calibration under the azimuth angle deviation value and the pitch angle deviation value to obtain an azimuth phase calibration value and a pitch phase calibration value;
and the updating module is used for updating the azimuth value according to the azimuth phase correction value and updating the pitch phase value according to the pitch phase correction value.
In a specific implementation, the determining module is specifically configured to: and calculating an initial azimuth angle and an initial pitching angle of the antenna pointing to the center of the sun by adopting a radio star position calculation module according to the three-axis coordinate data of the antenna.
In specific implementation, the preset conditions include:
the difference value between the signal power corresponding to the antenna when the antenna is subjected to positive deflection of the azimuth angle deflection value on the basis of the initial azimuth angle and the signal power corresponding to the antenna when the antenna is subjected to negative deflection of the azimuth angle deflection value on the basis of the initial azimuth angle is smaller than a preset value;
the antenna is unchanged in azimuth angle, and the difference between the signal power corresponding to the positive deflection of the pitch angle deflection value on the basis of the initial pitch angle and the signal power corresponding to the negative deflection of the pitch angle deflection value on the basis of the initial pitch angle is smaller than a preset value.
In specific implementation, the phase correction module includes:
the azimuth phase correction unit is used for keeping the pitching angle of the antenna at the initial pitching angle, and performing phase correction when the antenna performs correction offset of an azimuth angle deviation value on the basis of the initial azimuth angle and performs negative deviation of the azimuth angle deviation value on the basis of the initial azimuth angle to obtain an azimuth correction offset phase correction value and an azimuth negative deviation phase correction value;
a first determining unit, configured to determine the azimuth correction phase value according to the azimuth correction offset correction phase value and the azimuth negative correction offset value;
the pitching phase correction unit is used for keeping the azimuth angle of the antenna at the initial azimuth angle, and respectively correcting the phase when the antenna performs the correction and the deviation of the pitching angle on the basis of the initial pitching angle and performs the negative deviation on the basis of the initial pitching angle to obtain a pitching correction and deviation phase correction value and a pitching negative deviation phase correction value;
and the second determining module is used for determining the pitching phase correction value according to the pitching offset correction phase correction value and the pitching negative offset correction phase value.
In a specific implementation, the first determining unit is specifically configured to: averaging the azimuth correction offset phase correction value and the azimuth negative correction offset phase correction value to obtain an azimuth correction phase value; the second determining unit is specifically configured to: and averaging the pitching positive deviation phase correction value and the pitching negative deviation phase correction value to obtain the pitching phase correction value.
It is understood that, for the device provided in the embodiment of the present invention, for the explanation, examples, and beneficial effects of the related contents, reference may be made to the corresponding parts in the foregoing method, and details are not described here.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A radio measurement and control equipment phase calibration method based on solar noise is characterized by comprising the following steps:
determining an initial azimuth angle and an initial pitch angle of an antenna pointing to the center of the sun, and controlling the antenna to point to the center of the sun according to the initial azimuth angle and the initial pitch angle;
on the basis of the initial azimuth angle and the initial pitch angle, the direction of the antenna is adjusted to obtain an azimuth angle deviation value and a pitch angle deviation value which meet preset conditions;
according to the azimuth angle deviation value and the pitch angle deviation value, carrying out offset setting on the antenna, and respectively carrying out phase correction under the azimuth angle deviation value and the pitch angle deviation value to obtain an azimuth phase correction value and a pitch phase correction value;
and updating the azimuth value according to the azimuth phase correction value, and updating the pitch phase value according to the pitch phase correction value.
2. The method of claim 1, wherein determining an initial azimuth angle and an initial elevation angle at which the antenna is pointed toward the center of the sun comprises:
and calculating an initial azimuth angle and an initial pitching angle of the antenna pointing to the center of the sun by adopting a radio star position calculation module according to the three-axis coordinate data of the antenna.
3. The method according to claim 1, wherein the preset condition comprises:
the difference value between the signal power corresponding to the antenna when the antenna is subjected to positive deflection of the azimuth angle deflection value on the basis of the initial azimuth angle and the signal power corresponding to the antenna when the antenna is subjected to negative deflection of the azimuth angle deflection value on the basis of the initial azimuth angle is smaller than a preset value;
the antenna is unchanged in azimuth angle, and the difference between the signal power corresponding to the positive deflection of the pitch angle deflection value on the basis of the initial pitch angle and the signal power corresponding to the negative deflection of the pitch angle deflection value on the basis of the initial pitch angle is smaller than a preset value.
4. The method of claim 1, wherein the correcting the phase at the azimuth angle bias value and at the pitch angle bias value comprises:
maintaining the pitching angle of the antenna at the initial pitching angle, and respectively performing phase correction when the antenna performs correction of an azimuth angle deviation value on the basis of the initial azimuth angle and performs negative deviation of the azimuth angle deviation value on the basis of the initial azimuth angle to obtain an azimuth correction deviation phase correction value and an azimuth negative deviation phase correction value;
determining the azimuth correction phase value according to the azimuth correction offset correction phase value and the azimuth negative correction phase value;
maintaining the azimuth angle of the antenna at the initial azimuth angle, and respectively performing phase correction when the antenna performs correction deflection of a pitching angle deflection value on the basis of the initial pitching angle and performs negative deflection of the pitching angle deflection value on the basis of the initial pitching angle to obtain a pitching correction deflection phase correction value and a pitching negative deflection phase correction value;
and determining the pitching phase correction value according to the pitching offset correction phase value and the pitching negative offset correction phase value.
5. The method of claim 4, wherein determining the azimuth correction phase value based on the azimuth correction phase offset value and the azimuth negative correction phase value comprises: averaging the azimuth correction offset phase correction value and the azimuth negative correction offset phase correction value to obtain an azimuth correction phase value;
determining the pitch phase correction value according to the pitch offset phase correction value and the pitch negative offset phase correction value, comprising: and averaging the pitching positive deviation phase correction value and the pitching negative deviation phase correction value to obtain the pitching phase correction value.
6. A radio measurement and control equipment school looks device based on solar noise, its characterized in that includes:
the determining module is used for determining an initial azimuth angle and an initial pitch angle of the antenna pointing to the center of the sun and controlling the antenna to point to the center of the sun according to the initial azimuth angle and the initial pitch angle;
the adjusting module is used for adjusting the pointing direction of the antenna on the basis of the initial azimuth angle and the initial pitch angle to obtain an azimuth angle deviation value and a pitch angle deviation value which meet preset conditions;
the phase calibration module is used for carrying out offset setting on the antenna according to the azimuth angle deviation value and the pitch angle deviation value, and respectively carrying out phase calibration under the azimuth angle deviation value and the pitch angle deviation value to obtain an azimuth phase calibration value and a pitch phase calibration value;
and the updating module is used for updating the azimuth value according to the azimuth phase correction value and updating the pitch phase value according to the pitch phase correction value.
7. The apparatus of claim 6, wherein the determining module is specifically configured to: and calculating an initial azimuth angle and an initial pitching angle of the antenna pointing to the center of the sun by adopting a radio star position calculation module according to the three-axis coordinate data of the antenna.
8. The apparatus of claim 6, wherein the preset condition comprises:
the difference value between the signal power corresponding to the antenna when the antenna is subjected to positive deflection of the azimuth angle deflection value on the basis of the initial azimuth angle and the signal power corresponding to the antenna when the antenna is subjected to negative deflection of the azimuth angle deflection value on the basis of the initial azimuth angle is smaller than a preset value;
the antenna is unchanged in azimuth angle, and the difference between the signal power corresponding to the positive deflection of the pitch angle deflection value on the basis of the initial pitch angle and the signal power corresponding to the negative deflection of the pitch angle deflection value on the basis of the initial pitch angle is smaller than a preset value.
9. The apparatus of claim 6, wherein the phase correction module comprises:
the azimuth phase correction unit is used for keeping the pitching angle of the antenna at the initial pitching angle, and performing phase correction when the antenna performs correction offset of an azimuth angle deviation value on the basis of the initial azimuth angle and performs negative deviation of the azimuth angle deviation value on the basis of the initial azimuth angle to obtain an azimuth correction offset phase correction value and an azimuth negative deviation phase correction value;
a first determining unit, configured to determine the azimuth correction phase value according to the azimuth correction offset correction phase value and the azimuth negative correction offset value;
the pitching phase correction unit is used for keeping the azimuth angle of the antenna at the initial azimuth angle, and respectively correcting the phase when the antenna performs the correction and the deviation of the pitching angle on the basis of the initial pitching angle and performs the negative deviation on the basis of the initial pitching angle to obtain a pitching correction and deviation phase correction value and a pitching negative deviation phase correction value;
and the second determining module is used for determining the pitching phase correction value according to the pitching offset correction phase correction value and the pitching negative offset correction phase value.
10. The apparatus according to claim 9, wherein the first determining unit is specifically configured to: averaging the azimuth correction offset phase correction value and the azimuth negative correction offset phase correction value to obtain an azimuth correction phase value; the second determining unit is specifically configured to: and averaging the pitching positive deviation phase correction value and the pitching negative deviation phase correction value to obtain the pitching phase correction value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110618322.2A CN113595657B (en) | 2021-06-03 | 2021-06-03 | Phase correction method and device for radio measurement and control equipment based on solar noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110618322.2A CN113595657B (en) | 2021-06-03 | 2021-06-03 | Phase correction method and device for radio measurement and control equipment based on solar noise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113595657A true CN113595657A (en) | 2021-11-02 |
| CN113595657B CN113595657B (en) | 2023-09-12 |
Family
ID=78243365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110618322.2A Active CN113595657B (en) | 2021-06-03 | 2021-06-03 | Phase correction method and device for radio measurement and control equipment based on solar noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113595657B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250763A (en) * | 2001-02-26 | 2002-09-06 | Mitsubishi Electric Corp | Method of adjusting phase of antenna tracking circuit and tracking antenna apparatus using the same |
| JP2011163975A (en) * | 2010-02-10 | 2011-08-25 | Japan Radio Co Ltd | Azimuthal angle and elevation angle correction means of weather radar |
| CN103248379A (en) * | 2013-04-03 | 2013-08-14 | 中国人民解放军63680部队 | Small antenna auxiliary radio frequency phase correction method for monopulse track receiver of shipborne satellite communication system |
| CN104618044A (en) * | 2015-02-05 | 2015-05-13 | 中国人民解放军63636部队 | Method for utilizing sun as radio source to measure G/T value of vehicle-mounted remote-measuring device |
| CN111983314A (en) * | 2020-07-28 | 2020-11-24 | 北京航天驭星科技有限公司 | Tower-free phase correction method for simulating target position characteristics based on offset feed antenna |
-
2021
- 2021-06-03 CN CN202110618322.2A patent/CN113595657B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250763A (en) * | 2001-02-26 | 2002-09-06 | Mitsubishi Electric Corp | Method of adjusting phase of antenna tracking circuit and tracking antenna apparatus using the same |
| JP2011163975A (en) * | 2010-02-10 | 2011-08-25 | Japan Radio Co Ltd | Azimuthal angle and elevation angle correction means of weather radar |
| CN103248379A (en) * | 2013-04-03 | 2013-08-14 | 中国人民解放军63680部队 | Small antenna auxiliary radio frequency phase correction method for monopulse track receiver of shipborne satellite communication system |
| CN104618044A (en) * | 2015-02-05 | 2015-05-13 | 中国人民解放军63636部队 | Method for utilizing sun as radio source to measure G/T value of vehicle-mounted remote-measuring device |
| CN111983314A (en) * | 2020-07-28 | 2020-11-24 | 北京航天驭星科技有限公司 | Tower-free phase correction method for simulating target position characteristics based on offset feed antenna |
Non-Patent Citations (2)
| Title |
|---|
| 张维全等: "CINRAD/SC天气雷达系统"太阳法标校"数据修正研究", 《气象与环境学报》 * |
| 赵威等: "3830天气雷达系统的自动标校技术", 《沙漠与绿洲气象》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113595657B (en) | 2023-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10103431B2 (en) | Phased array antenna calibration | |
| CN113438006B (en) | Satellite signal capturing method, device, system and storage medium | |
| CN111948464B (en) | Offset-fed wireless closed-loop self-tracking phase correction system | |
| CN111682908B (en) | Phased array system receiving and transmitting channel consistency calibration method based on unmanned aerial vehicle | |
| CN112193439A (en) | Satellite-ground integrated high-precision satellite multi-beam calibration method | |
| CN113078939B (en) | Method for estimating measurement error of communication satellite multi-beam pointing calibration | |
| CN103746757A (en) | Single-satellite interference source positioning method based on satellite-borne multi-wave-beam antenna | |
| US20040189524A1 (en) | Deep depression angle calibration of airborne direction finding arrays | |
| RU2616651C2 (en) | Calibrating method of active antenna | |
| Dybdal | Communication satellite antennas: system architecture, technology, and evaluation | |
| US7068219B2 (en) | Communications system including phased array antenna providing nulling and related methods | |
| CN206564605U (en) | A kind of communication in moving end station system | |
| CN116470950A (en) | Method for measuring and calibrating multi-beam antenna pointing deviation under satellite antenna coordinate system | |
| CN108663577A (en) | A kind of cross polarization bearing calibration of Multi probe spherical surface near field | |
| CN111983314B (en) | Tower-free phase correction method for simulating target position characteristics based on offset feed antenna | |
| CN113595657A (en) | Phase calibration method and device for radio measurement and control equipment based on solar noise | |
| CN113765574B (en) | High-flux satellite multi-frequency point synchronous satellite finding method | |
| CN115224487A (en) | Method and system for correcting and adjusting transmission direction of airborne phased array antenna | |
| Henault | Antenna measurement drone for over-the-horizon radar | |
| US11917425B2 (en) | Variable beamwidth antenna control for aerial vehicles | |
| CN110514107B (en) | Method and system for measuring rotation angle of satellite antenna around visual axis | |
| US11889295B1 (en) | Digital compass for multi-user initial access in millimeter-wave cellular networks | |
| CN114578310B (en) | Method for judging and processing dispersion effect of satellite-borne SAR ionized layer | |
| CN115441920B (en) | On-site expandable antenna array beam forming method and system | |
| Fujino | Power Reception and Verification Procedure for Small-Scale SPS Satellite Demonstration |
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 |