CN113595657B - Phase correction method and device for radio measurement and control equipment based on solar noise - Google Patents
Phase correction method and device for radio measurement and control equipment based on solar noise Download PDFInfo
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- CN113595657B CN113595657B CN202110618322.2A CN202110618322A CN113595657B CN 113595657 B CN113595657 B CN 113595657B CN 202110618322 A CN202110618322 A CN 202110618322A CN 113595657 B CN113595657 B CN 113595657B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
Abstract
The invention relates to a phase correction method and a phase correction device for a radio measurement and control 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 sun center, and controlling the antenna to point to the sun center; the direction of the antenna is adjusted to obtain an azimuth angle deflection value and a pitching angle deflection value which meet preset conditions; performing offset setting on the antenna, and performing phase correction under the azimuth angle deflection value and the pitching angle deflection value to obtain an azimuth phase correction value and a pitching phase correction value; and updating the azimuth phase 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 the beacon source on the calibration tower to realize the calibration, realizes the towerless calibration of the radio measurement and control equipment, and solves the difficulties of high construction cost and difficult realization of the calibration tower of the large-caliber radio measurement and control equipment.
Description
Technical Field
The invention relates to the technical field of radio measurement and control, in particular to a phase correction method and device of radio measurement and control equipment based on solar noise.
Background
In telemetry devices, an amplitude monopulse mechanism is often employed, where phase inconsistencies between the sum and difference channels may cause: (1) a decrease in angular error orientation sensitivity; (2) The cross coupling is brought in a dual-channel single pulse angle tracking system; (3) Angular errors will be introduced when the phase is not consistent with the pre-differencer phase. Therefore, it is necessary to perform "phase correction" so that the phase difference between the sum and difference signals becomes zero.
The current common radio measurement and control equipment calibration method 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, i.e. a beacon antenna is arranged on a calibration tower, so that the antenna electric axis is aligned to the beacon antenna, the sum channel and the difference channel output signals of the angle tracking receiver are made to measure the phase difference of the sum channel and the difference channel output signals, and the phase of one channel is regulated to make the phase difference zero. The calibration tower method is suitable for multi-band near-field calibration, and has accurate phase calibration results, but because the far-field conditions of different aperture antennas are different, certain requirements are required on the height and the distance of the calibration tower, the construction of the calibration tower meeting the far-field calibration conditions of the large aperture antenna is not only costly, but also difficult to realize, and therefore, the calibration tower method is generally difficult to meet the testing requirements of the large aperture antenna. For example, in a telemetry system, the antenna caliber is 25m, and a calibration tower with the height of 202m is required to be built at the distance of 9615m according to far field conditions, which is unrealistic in terms of feasibility and implementation cost, so that a test calibration scheme of large-caliber radio control equipment under the condition of no calibration tower needs to be sought. The satellite method uses the characteristic of the full-phase radiation power of the synchronous satellite, and uses the synchronous satellite transmitting signal as a beacon signal to calibrate the phase. The signals of the synchronous satellite are phase modulation signals, which are equivalent to single carrier waves for the radio measurement and control equipment, and can carry out self-tracking phase correction, and the phase correction result is relatively accurate. However, because the frequency point of the synchronous satellite is fixed, the rotation phase is single, and the known resources are less, for example, a certain synchronous satellite only has a single left-handed phase modulation signal with a certain fixed point frequency, and the requirements of different point frequencies of various test tasks cannot be met, the satellite method is generally suitable for checking calibration results. The radio star method uses the radio star in the air to replace the beacon source on the calibration tower to realize phase calibration. The radio star method has the characteristics of all weather, wide distribution, rich resources and accurate ephemeris, and the radio star noise is white noise and can cover a plurality of frequency bands. However, because the radio measurement and control equipment has higher 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 self performance. Radio star calibration usually adopts a power supply such as a seat of the earth with stable radiation flux density, but is only suitable for an antenna with an extra large caliber due to a long distance, and has a limited application range.
Disclosure of Invention
In order to solve the technical problems or at least partially solve the technical problems, the invention provides a phase correction method and device for a radio measurement and control 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 pitching angle of the antenna pointing to the sun center, and controlling the antenna to point to the sun center according to the initial azimuth angle and the initial pitching angle;
on the basis of the initial azimuth angle and the initial pitching angle, the direction of the antenna is adjusted to obtain an azimuth angle deflection value and a pitching angle deflection value which meet preset conditions;
performing offset setting on the antenna according to the azimuth angle deflection value and the pitching angle deflection value, and performing phase correction under the azimuth angle deflection value and under the pitching angle deflection value respectively to obtain an azimuth phase correction value and a pitching phase correction value;
and updating the azimuth phase value according to the azimuth phase correction value, and updating the pitching phase value according to the pitching phase correction value.
In a second aspect, the present invention provides a phase correction device for a radio measurement and control device based on solar noise, including:
the determining module is used for determining an initial azimuth angle and an initial pitching angle of the antenna pointing to the sun center and controlling the antenna to point to the sun center according to the initial azimuth angle and the initial pitching angle;
the adjusting module is used for adjusting the direction of the antenna on the basis of the initial azimuth angle and the initial pitching angle to obtain an azimuth angle deflection value and a pitching angle deflection value which meet preset conditions;
the phase correction module is used for carrying out offset setting on the antenna according to the azimuth angle deflection value and the pitching angle deflection value, and carrying out phase correction under the azimuth angle deflection value and the pitching angle deflection value respectively to obtain an azimuth phase correction value and a pitching phase correction value;
and the updating module is used for updating the azimuth phase value according to the azimuth phase correction value and updating the pitching phase value according to the pitching phase correction value.
According to the phase correction method and device for the radio measurement and control equipment based on solar noise, provided by the invention, the sun is used for replacing a beacon source on a calibration tower to realize phase correction, so that the non-tower phase correction of the radio measurement and control equipment is realized, and the difficulties that the construction cost of the calibration tower of the large-caliber radio measurement and control equipment is high and difficult to realize are solved. The solar energy is used as the strongest radio source in space, has the advantages of wide frequency band, high strength, predictable position and the like, is suitable for being used as a calibration signal source, can meet the requirements of different point frequencies of various test tasks, is suitable for large-caliber 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 invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic view of a sun and an antenna of the present invention;
fig. 2 is a schematic flow chart of a phase calibration method of a radio measurement and control device for solar noise according to 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. 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.
With the deep research of solar radio astronomy and the application of new generation of centimeter wave and decimeter wave solar day imagers in China in recent years, solar noise is deeply recognized, a more accurate radiation model is established, and meanwhile, the application of radio calibration based on the theory and application research of solar noise is possible.
The sun is taken as the strongest power source in space, has been the focus of research, and has the advantages of wide frequency band, high strength, predictable position and the like, and is suitable for being used as a calibration signal source. The feasibility of solar calibration is obtained by carrying out solar calibration principle research on feasibility analysis of taking the sun as a test calibration signal source of the range radio measurement and control equipment, a set of solar noise-based radio measurement and control equipment phase calibration scheme is established, and the solar is used for replacing a beacon source on a calibration tower to realize phase calibration, so that the towerless phase calibration of the radio measurement and control equipment can be realized, and the difficulties of high construction cost and difficult realization of the calibration tower of the large-caliber radio measurement and control equipment are solved.
The invention provides a phase correction method of a radio measurement and control device based on solar noise, as shown in figures 1 and 2, comprising the following steps:
s110, determining an initial azimuth angle and an initial pitching angle of the antenna pointing to the sun center, and controlling the antenna to point to the sun center according to the initial azimuth angle and the initial pitching angle;
it will be appreciated that the sun is used here to replace the beacon source on the calibration tower to effect calibration.
In the implementation, in S110, an initial azimuth angle and an initial elevation angle of the antenna pointing to the sun center may be calculated according to the three-axis coordinate data of the antenna and by using a radio star position calculation module.
Wherein the three-axis coordinate data includes longitude, latitude, and altitude.
The radio star position calculation module has the functions that: and calculating azimuth angle and pitching angle of the antenna relative to the sun according to the triaxial coordinate data of the antenna. In the 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 calculated, 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 pitching angle, the direction of the antenna is adjusted, and an azimuth angle deflection value and a pitching angle deflection value which meet preset conditions are obtained;
it is understood that in order to ensure the accuracy of single phase correction, it is necessary to determine the azimuth angle deviation value and the pitch angle deviation value satisfying the preset condition.
It will be appreciated that the azimuth angle deflection value and the elevation angle deflection value do not exceed the beam width of the device.
In specific implementation, the preset conditions may include: the antenna is unchanged in pitching angle, and the difference value between the signal power corresponding to the forward bias of the azimuth angle deflection value on the basis of the initial azimuth angle and the signal power corresponding to the negative bias of the azimuth angle deflection value on the basis of the initial azimuth angle is smaller than a preset value.
The preset value can be selected according to the requirement, for example, 0.5dB.
It can be understood that, on the basis of the initial azimuth angle, the azimuth of the antenna is positively biased by a certain angle and negatively biased by a certain angle, the difference of the signal power of the antenna during the positive bias and the negative bias is smaller than a preset value, at this time, the positive bias angle and the negative bias angle are azimuth angle bias values, and the positive bias angle and the negative bias angle are the same.
For example, when the azimuth angle of the antenna is positively biased by 5 secret bits and negatively biased by 5 secret bits, the difference of signal power can be ensured to be less than 0.5dB.
It will be appreciated that the pitch angle of the antenna remains unchanged at the initial pitch angle when the azimuth angle is either positively or negatively biased.
In specific implementation, the preset conditions may further include: the antenna is unchanged in azimuth angle, and the difference value between the signal power corresponding to the forward deviation of the pitching angle deviation value on the basis of the initial pitching angle and the signal power corresponding to the negative deviation of the pitching angle deviation value on the basis of the initial pitching 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 of the signal power of the antenna during the positive bias and the negative bias is smaller than a preset value, at this time, the positive bias angle and the negative bias angle are pitching angle bias values, and the positive bias angle and the negative bias angle are the same.
For example, when the pitch angle of the antenna is shifted by 3 mils positive and 3 mils negative, it is possible to ensure that the difference in signal power is less than 0.5dB.
It will be appreciated that the azimuth angle of the antenna remains unchanged at the initial pitch angle, with either a positive or negative bias to the pitch angle.
In this step, the azimuth angle deviation value and the elevation angle deviation value satisfying the preset condition are determined by fine adjustment of the antenna pointing direction.
S130, carrying out offset setting on the antenna according to the azimuth angle deflection value and the pitching angle deflection value, and respectively correcting phases under the azimuth angle deflection value and the pitching angle deflection value to obtain an azimuth phase correction value and a pitching phase correction value;
for example, the electronic device is offset set according to the azimuth angle offset value and the pitch angle offset value determined in step S120, that is, the azimuth offset is configured as the azimuth angle offset value determined in step S120, and the pitch offset is configured as the pitch angle offset value in step S120, so that the electronic device performs phase correction under the azimuth angle offset value and performs phase correction under the pitch angle offset value.
In particular implementation, the phase correction process performed in step S130 under the azimuth angle deviation value and under the elevation angle deviation value may include:
s131, maintaining the pitching angle of the antenna at the initial pitching angle, and correcting phases when the antenna performs positive deflection of an azimuth angle deflection value on the basis of the initial azimuth angle and performs negative deflection of the azimuth angle deflection value on the basis of the initial azimuth angle to obtain an azimuth positive deflection correction phase value and an azimuth negative deflection correction phase value;
that is, the pitching angle of the antenna is kept unchanged at the initial pitching angle, the antenna is subjected to forward deviation of the azimuth angle deviation value on the basis of the initial azimuth angle, and phase correction is performed at the moment to obtain an azimuth forward deviation correction phase value; and carrying out negative bias on the azimuth angle deflection value of the antenna on the basis of the initial azimuth angle to obtain an azimuth negative bias phase correction value.
S132, determining the azimuth phase correction value according to the azimuth positive phase correction value and the azimuth negative phase correction value;
in a specific implementation, the azimuth positive offset phase value and the azimuth negative offset phase value may be averaged to obtain the azimuth phase value.
S133, maintaining the azimuth angle of the antenna at the initial azimuth angle, and correcting phases when the antenna performs positive 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 positive deflection correction phase value and a pitching negative deflection correction phase value;
that is, the azimuth angle of the antenna is kept unchanged at the initial azimuth angle, the antenna is subjected to forward deviation of the pitching angle deviation value on the basis of the initial pitching angle, and phase correction is performed at the moment to obtain a pitching forward deviation correction phase value; and carrying out negative deviation on the pitching angle deflection value of the antenna on the basis of the initial pitching angle, and carrying out phase correction at the moment to obtain a pitching negative deviation phase correction value.
S134, determining the pitch correction phase value according to the pitch positive offset correction phase value and the pitch negative offset correction phase value.
In a specific implementation, the pitch positive offset phase value and the pitch negative offset phase value may be averaged to obtain the pitch phase value.
The steps S131 to S134 are directed to a phase correction process, and a set of phase correction results are obtained, and in order to optimize the phase correction effect, multiple phase correction may be performed, and then an average is performed. According to the influence analysis of the solar polarization angle and the spreading source effect on the phase correction result, when the beam width of the antenna of the radio measurement and control equipment is larger than the solar angle diameter, the sun can be regarded as a point source target model; when the beam width is smaller than the solar angular diameter, the sun must be considered as a non-point source target model. Considering solar spread source effect and polarization variation, solar phase correction can be divided into the following two cases:
(1) Wide-beam antenna (theta) 3dB Phase correction scheme of more than or equal to 0.5 DEG)
Since the accuracy of a single phase correction to the sun is greatly affected by the sun motion (e.g., burst, black, etc.), the accuracy is about 12 °, corresponding to about 1/5 of the cross-coupling. To further optimize the phase calibration result, multiple phase calibration 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, in addition to azimuth phase correction values and elevation phase correction values, azimuth and elevation slope may be included in each set of phase correction results. Assume that the result of the ith phase correction is (θ Ai ，k Ai ，θ Ei ，k Ei ) The final phase correction result is:
wherein n is the total phase correction times, and n is more than or equal to 5; θ A Is an azimuth phase correction value; k (k) A Is the azimuth difference slope; θ E Is a pitch correction value; k (k) E Is the pitch difference slope. n is more than or equal to 5, and the accuracy of the solar phase correction result can be ensured<10 deg., cross coupling is better than 1/5. Because in the tracking system, the cross coupling is less than 1/5, the phase correction precision is better than +/-12 degrees, the system can reliably track, and when the cross coupling is more than 1/5 and less than 1/3, the phase correction precision is better than +/-17 degrees, the system can track normally but the time for capturing a target by the system is prolonged.
(2) Narrow beam antenna (theta) 3dB Less than or equal to 0.5 DEG) phase correction scheme
For a narrow wave antenna, the single phase correction precision of the sun is greatly influenced by the sun movement (such as explosion, blackness and other factors), the sun cannot be regarded as a point source, the single phase correction precision is poor and the corresponding cross coupling can exceed 1/3. It is necessary to calibrate the phases several times during the day at average time intervals and take the average value. The phase correction is carried out every 2h from the beginning of 10 hours to the end of 16 hours in the ith day, 4 times of phase correction results are combined in the day, and the j th phase correction result is (theta) Aij ，k Aij ，θ Eij ，k Eij ) (1.ltoreq.j.ltoreq.4), and the final phase correction result is:
where n is the total phase correction number of days. When n is more than or equal to 3, the solar 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 angle diameter.
And S140, updating the azimuth phase 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 the signal tracking mode may be entered after updating the azimuth and pitch phase angles.
According to the phase correction method of the radio measurement and control equipment, provided by the invention, the sun is used for replacing a beacon source on the calibration tower to realize phase correction, so that the non-tower phase correction of the radio measurement and control equipment is realized, and the difficulties that the construction cost of the calibration tower of the large-caliber radio measurement and control equipment is high and difficult to realize are solved. The solar energy is used as the strongest radio source in space, has the advantages of wide frequency band, high strength, predictable position and the like, is suitable for being used as a calibration signal source, can meet the requirements of different point frequencies of various test tasks, is suitable for large-caliber antennas, and has wide application range.
In a second aspect, the present invention provides a phase correction device for a radio measurement and control device based on solar noise, including:
the determining module is used for determining an initial azimuth angle and an initial pitching angle of the antenna pointing to the sun center and controlling the antenna to point to the sun center according to the initial azimuth angle and the initial pitching angle;
the adjusting module is used for adjusting the direction of the antenna on the basis of the initial azimuth angle and the initial pitching angle to obtain an azimuth angle deflection value and a pitching angle deflection value which meet preset conditions;
the phase correction module is used for carrying out offset setting on the antenna according to the azimuth angle deflection value and the pitching angle deflection value, and carrying out phase correction under the azimuth angle deflection value and the pitching angle deflection value respectively to obtain an azimuth phase correction value and a pitching phase correction value;
and the updating module is used for updating the azimuth phase value according to the azimuth phase correction value and updating the pitching phase value according to the pitching phase correction value.
In a specific implementation, the determining module is specifically configured to: according to the triaxial coordinate data of the antenna, a radio star position calculation module is adopted to calculate an initial azimuth angle and an initial pitching angle of the antenna pointing to the sun center.
In a specific implementation, the preset conditions include:
the antenna is unchanged in pitching angle, and the difference value between the signal power corresponding to the forward bias of the azimuth angle deflection value on the basis of the initial azimuth angle and the signal power corresponding to the negative bias 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 value between the signal power corresponding to the forward deviation of the pitching angle deviation value on the basis of the initial pitching angle and the signal power corresponding to the negative deviation of the pitching angle deviation value on the basis of the initial pitching angle is smaller than a preset value.
In a 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 correcting phases when the antenna performs positive deviation 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 respectively to obtain an azimuth positive deviation correction value and an azimuth negative deviation correction value;
the first determining unit is used for determining the azimuth phase correction value according to the azimuth positive phase correction value and the azimuth negative phase correction value;
the pitching phase correction unit is used for keeping the azimuth angle of the antenna at the initial azimuth angle, and correcting phases when the antenna performs positive deviation of a pitching angle deviation value on the basis of the initial pitching angle and performs negative deviation of the pitching angle deviation value on the basis of the initial pitching angle respectively to obtain a pitching positive deviation correction value and a pitching negative deviation correction value;
and the second determining module is used for determining the pitching correction phase value according to the pitching positive offset phase value and the pitching negative offset phase value.
In a specific implementation, the first determining unit is specifically configured to: averaging the azimuth positive offset phase value and the azimuth negative offset phase value to obtain the azimuth phase value; the second determining unit is specifically configured to: and averaging the pitching positive offset phase value and the pitching negative offset phase value to obtain the pitching phase value.
It may be understood that, for the explanation, examples, beneficial effects, etc. of the device provided by the embodiment of the present invention, reference may be made to corresponding parts in the above method, and details are not repeated herein.
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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (2)
1. A phase correction method of a radio measurement and control device based on solar noise is characterized by comprising the following steps:
determining an initial azimuth angle and an initial pitching angle of the antenna pointing to the sun center, and controlling the antenna to point to the sun center according to the initial azimuth angle and the initial pitching angle;
on the basis of the initial azimuth angle and the initial pitching angle, the direction of the antenna is adjusted to obtain an azimuth angle deflection value and a pitching angle deflection value which meet preset conditions;
performing offset setting on the antenna according to the azimuth angle deflection value and the pitching angle deflection value, and performing phase correction under the azimuth angle deflection value and under the pitching angle deflection value respectively to obtain an azimuth phase correction value and a pitching phase correction value;
updating the azimuth phase value according to the azimuth phase correction value, and updating the pitch phase value according to the pitch phase correction value;
the determining the initial azimuth angle and the initial elevation angle of the antenna pointing to the sun center comprises the following steps:
according to the triaxial coordinate data of the antenna, calculating an initial azimuth angle and an initial pitching angle of the antenna pointing to the sun center by adopting a radio star position calculation module;
the preset conditions include:
the antenna is unchanged in pitching angle, and the difference value between the signal power corresponding to the forward bias of the azimuth angle deflection value on the basis of the initial azimuth angle and the signal power corresponding to the negative bias 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 value between the signal power corresponding to the forward deviation of the pitching angle deviation value on the basis of the initial pitching angle and the signal power corresponding to the negative deviation of the pitching angle deviation value on the basis of the initial pitching angle is smaller than a preset value;
the phase correction under the azimuth angle deflection value and the elevation angle deflection value comprises the following steps:
maintaining the pitching angle of the antenna at the initial pitching angle, and correcting the phase when the antenna performs positive deviation of the 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 positive deviation correction phase value and an azimuth negative deviation correction phase value;
determining the azimuth phase correction value according to the azimuth positive phase correction value and the azimuth negative phase correction value;
maintaining the azimuth angle of the antenna at the initial azimuth angle, and correcting phases when the antenna performs positive 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 positive deflection correction phase value and a pitching negative deflection correction phase value;
determining the pitch correction phase value according to the pitch positive offset phase value and the pitch negative offset phase value;
the determining the azimuth phase correction value according to the azimuth positive phase correction value and the azimuth negative phase correction value comprises the following steps: averaging the azimuth positive offset phase value and the azimuth negative offset phase value to obtain the azimuth phase value;
the determining the pitch correction value according to the pitch positive offset correction value and the pitch negative offset correction value includes: averaging the pitching positive offset phase value and the pitching negative offset phase value to obtain a pitching phase value;
according to the solar spreading effect and polarization change, solar phase correction is divided into the following two cases:
(1) Phase correction scheme for wide beam antenna
Performing phase correction for multiple times to obtain a plurality of groups of azimuth phase correction values and pitching phase correction values, and then respectively averaging; including in each set of phase correction results a azimuth difference slope and a pitch difference slope, assuming that the result of the ith phase correction is (θ Ai ，k Ai ，θ Ei ，k Ei ) The final phase correction result is:
wherein n is the total phase correction times, and n is more than or equal to 5; θ A Is an azimuth phase correction value; k (k) A Is the azimuth difference slope; θ E Is a pitch correction value; k (k) E Is the pitch difference slope;
(2) Phase correction scheme for narrow beam antenna
The phase correction is carried out for a plurality of times in a day according to the average time interval, and the average value is taken for use, the phase correction is carried out every 2 hours from the beginning of 10 hours to the end of 16 hours in the ith day, the total phase correction results are 4 times in the day, and the phase correction result of the jth time is (theta) Aij ，k Aij ，θ Eij ，k Eij ) 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 phase correction days, and n is more than or equal to 3.
2. A radio measurement and control equipment phase correction device based on solar noise is characterized by comprising:
the determining module is used for determining an initial azimuth angle and an initial pitching angle of the antenna pointing to the sun center and controlling the antenna to point to the sun center according to the initial azimuth angle and the initial pitching angle;
the adjusting module is used for adjusting the direction of the antenna on the basis of the initial azimuth angle and the initial pitching angle to obtain an azimuth angle deflection value and a pitching angle deflection value which meet preset conditions;
the phase correction module is used for carrying out offset setting on the antenna according to the azimuth angle deflection value and the pitching angle deflection value, and carrying out phase correction under the azimuth angle deflection value and the pitching angle deflection value respectively to obtain an azimuth phase correction value and a pitching phase correction value;
the updating module is used for updating the azimuth phase value according to the azimuth phase correction value and updating the pitching phase value according to the pitching phase correction value;
the determining module is specifically configured to: according to the triaxial coordinate data of the antenna, calculating an initial azimuth angle and an initial pitching angle of the antenna pointing to the sun center by adopting a radio star position calculation module;
the preset conditions include:
the antenna is unchanged in pitching angle, and the difference value between the signal power corresponding to the forward bias of the azimuth angle deflection value on the basis of the initial azimuth angle and the signal power corresponding to the negative bias 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 value between the signal power corresponding to the forward deviation of the pitching angle deviation value on the basis of the initial pitching angle and the signal power corresponding to the negative deviation of the pitching angle deviation value on the basis of the initial pitching angle is smaller than a preset value;
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 correcting phases when the antenna performs positive deviation 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 respectively to obtain an azimuth positive deviation correction value and an azimuth negative deviation correction value;
the first determining unit is used for determining the azimuth phase correction value according to the azimuth positive phase correction value and the azimuth negative phase correction value;
the pitching phase correction unit is used for keeping the azimuth angle of the antenna at the initial azimuth angle, and correcting phases when the antenna performs positive deviation of a pitching angle deviation value on the basis of the initial pitching angle and performs negative deviation of the pitching angle deviation value on the basis of the initial pitching angle respectively to obtain a pitching positive deviation correction value and a pitching negative deviation correction value;
the second determining unit is used for determining the pitching correction phase value according to the pitching positive offset phase value and the pitching negative offset phase value;
the first determining unit is specifically configured to: averaging the azimuth positive offset phase value and the azimuth negative offset phase value to obtain the azimuth phase value; the second determining unit is specifically configured to: averaging the pitching positive offset phase value and the pitching negative offset phase value to obtain a pitching phase value;
according to the solar spreading effect and polarization change, solar phase correction is divided into the following two cases:
(1) Phase correction scheme for wide beam antenna
Performing phase correction for multiple times to obtain a plurality of groups of azimuth phase correction values and pitching phase correction values, and then respectively averaging; including in each set of phase correction results a azimuth difference slope and a pitch difference slope, assuming that the result of the ith phase correction is (θ Ai ，k Ai ，θ Ei ，k Ei ) The final phase correction result is:
wherein n is the total phase correction times, and n is more than or equal to 5; θ A Is an azimuth phase correction value; k (k) A Is the azimuth difference slope; θ E Is a pitch correction value; k (k) E Is the pitch difference slope;
(2) Phase correction scheme for narrow beam antenna
The phase correction is carried out for a plurality of times in a day according to the average time interval, and the average value is taken for use, the phase correction is carried out every 2 hours from the beginning of 10 hours to the end of 16 hours in the ith day, the total phase correction results are 4 times in the day, and the phase correction result of the jth time is (theta) Aij ，k Aij ，θ Eij ，k Eij ) 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 phase correction days, and n is more than or equal to 3.
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