CN102176046A - Ionospheric scintillation monitor and monitoring method based on polar orbiting meteorological satellite signal - Google Patents
Ionospheric scintillation monitor and monitoring method based on polar orbiting meteorological satellite signal Download PDFInfo
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Abstract
The invention discloses an ionospheric scintillation monitor and monitoring method based on a polar orbiting meteorological satellite signal; the monitor is provided with a signal receiving module for receiving the polar orbiting meteorological satellite signal, a signal acquiring processing module and a data processing module; the signal receiving module is provided with an antenna, a high-frequency amplifier, a first lower transducer and a conversion circuit; the signal acquiring processing module is provided with an A/D (analog/digital) conversion circuit and a data processing unit; and the data processing module is arranged as a computer. The monitoring method comprises the following steps: (1) detecting and determining a beacon; (2) receiving a work signal; (3) acquiring and processing the signal; and (4) computing a scintillation parameter, computing a scintillation index and computing the position of a scintillation body. The ionospheric scintillation monitor can be used for monitoring the polar orbiting meteorological satellite signal so as to monitor the ionospheric scintillation, computing the scintillation index and estimating the position of the scintillation body.
Description
Technical field
The present invention relates to communication technology of satellite, particularly relate to a kind of ionospheric scintillation monitor and monitoring method based on the polar orbiting meteorological satellite signal.
Background technology
Ionosphere is the important component part of solar-terrestrial physics environment and geospace, and the unevenness of ionospheric electron density can cause the random fluctuation of specific inductive capacity and refractive index.When electromagnetic wave is propagated in such medium, can cause the change in travel path and travel-time, make the amplitude, phase place of signal and quick fluctuations takes place at the receiving antenna place ray angle of arrival to cause signal dropout, this phenomenon is called as ionospheric scintillation.
Can improve the understanding of people to the research of ionospheric scintillation to geospace and solar-terrestrial physics environment, help the understanding of people's reinforcement to space environment, development has forecast space weather pattern meaning, that take a broad view of better, knowledge physics, experience, statistics is combined, finally form a chain of causation model that whole space weather generation, development, ground effect can be described.The diastrous weather incident that occurs in the space environment is carried out more comprehensively more monitoring, diagnosis, prediction and the forecast of science, predict time of origin, the order of severity of the disastrous incident of people and can cause what kind of consequence, alleviate and avoid space diastrous weather that the high-tech technological system of costliness is caused damage, for departments such as space flight, communication, navigation, resource, electric power, ecology, medical science, scientific research, aerospace safety and national defence provide regional and global background with the time change environmental pattern.Therefore, ionospheric scintillation research is had great importance.
Move about 115 minutes of the cycle of operation on the sun synchronous orbit between the empty on earth 800-1000 kilometer of polar orbiting meteorological satellite around the two poles of the earth, earth north and south.Because polar orbiting meteorological satellite is crossed over the sky, north and south with fast speeds, its signal is used for the ionospheric scintillation monitoring, help catching the ionospheric scintillation body, calculate scintillation index and estimate the position of scintillator.
Therefore, provide a kind of ionospheric scintillation monitor and monitoring method very necessary based on the polar orbiting meteorological satellite signal.
Summary of the invention
The objective of the invention is to avoid the deficiencies in the prior art part and a kind of ionospheric scintillation monitor and monitoring method based on the polar orbiting meteorological satellite signal is provided, should can accurately catch the ionospheric scintillation body based on the ionospheric scintillation monitor and the monitoring method of polar orbiting meteorological satellite signal, calculate scintillation index and estimate the position of scintillator.
Purpose of the present invention realizes by following technical measures.
A kind of ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal is provided, be provided with the signal receiving module, signal acquisition process module and the data processing module that are used to receive described polar orbiting meteorological satellite signal, the output terminal of described signal receiving module connects with the input end of described signal acquisition process module, and the output terminal of described signal acquisition process module connects with the input end of described data processing module.
Described signal receiving module is provided with antenna, radio-frequency amplifier, first low-converter and change-over circuit, described antenna receives the signal of described polar orbiting meteorological satellite emission, described antenna is attached to the input end of described radio-frequency amplifier, the output terminal of described radio-frequency amplifier connects with the input end of described first low-converter, the output terminal of described first low-converter connects with the input end of described change-over circuit, and the output terminal of described change-over circuit connects with the input end of described signal acquisition process module.
Described change-over circuit is set to second low-converter, and the input end of described second low-converter connects with the input end of described first low-converter, and the output terminal of described second low-converter connects with the input end of described signal acquisition process module.
Described signal acquisition process module is provided with A/D change-over circuit and digital processing element, the input end of described A/D change-over circuit connects with the output terminal of described signal receiving module, the output terminal of described A/D change-over circuit connects with the input end of described digital processing element, and the output terminal of described digital processing element connects with the input end of described data processor module.
Described signal acquisition process module is provided with A/D change-over circuit and digital processing element, the input end of described A/D change-over circuit connects with the output terminal of described second low-converter, the output terminal of described A/D change-over circuit connects with the input end of described digital processing element, and the output terminal of described digital processing element connects with the input end of described data processor module.
Described digital processing element is set to the digital processing element that is made of field programmable gate array processor FPGA and digital signal processor DSP.
Described data processing module is set to computing machine.
Described computer installation has amplitude information collecting unit, phase information collecting unit, scintillation index computing unit and ionospheric scintillation body position computing unit,
The input end of the input end of described amplitude information collecting unit, described phase information collecting unit connects with the output terminal of described digital processing element respectively, the output terminal of the output terminal of described amplitude information collecting unit, described phase information collecting unit connects with the input end of described scintillation index computing unit, and the output terminal of described scintillation index computing unit connects with the input end of described ionospheric scintillation body position computing unit.
Purpose of the present invention can also realize by following technical measures, and a kind of ionospheric scintillation monitoring method based on the polar orbiting meteorological satellite signal is provided, comprise the following steps,
(1) beacon detects and determines, the signal that the described polar orbiting meteorological satellite that receives based on the ionospheric scintillation monitor detection signal receiver module of polar orbiting meteorological satellite signal is launched is defined as described beacon of monitoring based on the ionospheric scintillation monitor of polar orbiting meteorological satellite signal with described signal;
(2) working signal receives, and signal receiving module receives the signal of polar orbiting meteorological satellite, and described signal is carried out processing and amplifying, and then the signal after the processing and amplifying is carried out down-converted, is intermediate-freuqncy signal with described conversion of signals;
(3) signal acquisition process, described signal acquisition process module is carried out analog to digital conversion to described intermediate-freuqncy signal, signal calculated amplitude information and phase information;
(4) flicker calculation of parameter, described data processing module carries out scintillation index calculating according to described signal amplitude information and described signal phase information, and calculates the scintillator position.
Described signal receiving module is provided with antenna, radio-frequency amplifier, first low-converter and change-over circuit, described antenna is attached to the input end of described radio-frequency amplifier, the output terminal of described radio-frequency amplifier connects with the input end of described first low-converter, the output terminal of described first low-converter connects with the input end of described change-over circuit, and the output terminal of described change-over circuit connects with the input end of described signal acquisition process module;
Described antenna receives the signal of described polar orbiting meteorological satellite emission, described radio-frequency amplifier carries out processing and amplifying to described signal, the signal of described first low-converter after to described processing and amplifying carries out the down-converted first time, obtain the first down-converted signal, described change-over circuit carries out second down-converted to the described first down-converted signal, obtains intermediate-freuqncy signal;
Described signal acquisition process module is provided with A/D change-over circuit and digital processing element, the input end of described A/D change-over circuit connects with the output terminal of described second low-converter, the output terminal of described A/D change-over circuit connects with the input end of described digital processing element, and the output terminal of described digital processing element connects with the input end of described data processor module;
Described A/D change-over circuit carries out analog to digital conversion to the described intermediate-freuqncy signal of input, obtains digital signal, and described digital processing element is handled described digital signal, signal calculated amplitude information and phase information;
Described data processing module is set to computing machine, and described computer installation has amplitude information collecting unit, phase information collecting unit, scintillation index computing unit and ionospheric scintillation body position computing unit;
Described computing machine carries out scintillation index calculating respectively according to described signal amplitude information and described signal phase information, and calculates the scintillator position.
A kind of ionospheric scintillation monitor of the present invention based on the polar orbiting meteorological satellite signal, be provided with the signal receiving module, signal acquisition process module and the data processing module that are used to receive described polar orbiting meteorological satellite signal, the output terminal of described signal receiving module connects with the input end of described signal acquisition process module, and the output terminal of described signal acquisition process module connects with the input end of described data processing module.Ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal of the present invention, the signal that can monitor polar orbiting meteorological satellite carry out the ionospheric scintillation monitoring, calculate scintillation index and estimate the position of scintillator.
A kind of ionospheric scintillation monitoring method of the present invention based on the polar orbiting meteorological satellite signal, comprise the following steps: that (1) beacon detects with definite, the signal that the described polar orbiting meteorological satellite that receives based on the ionospheric scintillation monitor detection signal receiver module of polar orbiting meteorological satellite signal is launched is defined as described beacon of monitoring based on the ionospheric scintillation monitor of polar orbiting meteorological satellite signal with described signal; (2) working signal receives, and signal receiving module receives the signal of polar orbiting meteorological satellite, and described signal is carried out processing and amplifying, and then the signal after the processing and amplifying is carried out down-converted, with described conversion of signals intermediate-freuqncy signal; (3) signal acquisition process, described signal acquisition process module is carried out analog to digital conversion to described intermediate-freuqncy signal, signal calculated amplitude information and phase information; (4) flicker calculation of parameter, the flicker calculation of parameter, described data processing module carries out scintillation index calculating according to described signal amplitude information and described signal phase information, and calculates the scintillator position.The signal that this monitoring method can be monitored polar orbiting meteorological satellite carries out the ionospheric scintillation monitoring, calculates scintillation index and estimates the position of scintillator.
Description of drawings
The invention will be further described in conjunction with the accompanying drawings, but the content in the accompanying drawing does not constitute any limitation of the invention.
Fig. 1 is the structural representation of a kind of ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal of the present invention.
In Fig. 1, comprise,
Signal acquisition process module 200,
Radio-frequency amplifier 20,
First low-converter 30,
Change-over circuit 40,
A/D change-over circuit 50,
Embodiment
With the following Examples the present invention is further described.
Embodiment 1.
A kind of ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal as shown in Figure 1, is provided with the signal receiving module 100, signal acquisition process module 200 and the data processing module 300 that are used to receive the polar orbiting meteorological satellite signal.The output terminal of signal receiving module 100 connects with the input end of signal acquisition process module 200, and the output terminal of signal acquisition process module 200 connects with the input end of data processing module 300.Signal receiving module 100 receives the signal of polar orbiting meteorological satellite, and described signal is carried out processing and amplifying, and then the signal after the processing and amplifying is carried out down-converted, with described conversion of signals intermediate-freuqncy signal.200 pairs of described intermediate-freuqncy signals of signal acquisition process module are carried out analog to digital conversion, signal calculated amplitude information and phase information.Data processing module 300 carries out scintillation index calculating according to described signal amplitude information and described signal phase information, and calculates the scintillator position.
Change-over circuit 40 is provided with second low-converter, and the input end of second low-converter connects with the input end of first low-converter 30, and the output terminal of second low-converter connects with the input end of signal acquisition process module 200.
Signal acquisition process module 200 is provided with A/D change-over circuit 50 and digital processing element 60, the input end of A/D change-over circuit 50 connects with the output terminal of second low-converter, the output terminal of A/D change-over circuit 50 connects with the input end of digital processing element 60, and the output terminal of digital processing element 60 connects with the input end of data processor module.The intermediate-freuqncy signal of 50 pairs of inputs of A/D change-over circuit is carried out analog to digital conversion, obtains digital signal, and 60 pairs of digital signals of digital processing element are handled signal calculated amplitude information and phase information.
Ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal of the present invention selects polar orbiting meteorological satellite as new detection beacon, the characteristics of polar orbiting meteorological satellite are to cross over the sky, north and south with fast speeds, its signal is used for the ionospheric scintillation monitoring, helps catching fast ionospheric scintillation body and estimation scintillator yardstick.By the ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal of the present invention, the signal that can monitor polar orbiting meteorological satellite carries out the ionospheric scintillation monitoring, calculates scintillation index and estimates the position of scintillator.
Embodiment 2.
A kind of ionospheric scintillation monitoring method based on the polar orbiting meteorological satellite signal adopts the ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal as described in Figure 1, comprises the following steps.
(1) beacon detects and determines, the signal that the described polar orbiting meteorological satellite that receives based on the ionospheric scintillation monitor detection signal receiver module 100 of polar orbiting meteorological satellite signal is launched is defined as described beacon of monitoring based on the ionospheric scintillation monitor of polar orbiting meteorological satellite signal with described signal.
(2) working signal receives, and signal receiving module 100 receives the signal of polar orbiting meteorological satellite, and described signal is carried out processing and amplifying, and then the signal after the processing and amplifying is carried out down-converted, with described conversion of signals intermediate-freuqncy signal.
Described antenna 10 receives the signal of described polar orbiting meteorological satellite emission, 20 pairs of described signals of described radio-frequency amplifier carry out processing and amplifying, 30 pairs of described amplifying signals of described first low-converter carry out the down-converted first time, the movable first down-converted signal, 40 pairs of described first down-converted signals of described change-over circuit carry out second down-converted, obtain intermediate-freuqncy signal.
(3) signal acquisition process, 200 pairs of described intermediate-freuqncy signals of described signal acquisition process module are carried out analog to digital conversion, signal calculated amplitude information and phase information; Signal acquisition process module 200 is provided with A/D change-over circuit 50 and digital processing element 60, the input end of described A/D change-over circuit 50 connects with the output terminal of described second low-converter, the output terminal of described A/D change-over circuit 50 connects with the input end of described digital processing element 60, and the output terminal of described digital processing element 60 connects with the input end of described data processor module.The described intermediate-freuqncy signal of 50 pairs of inputs of described A/D change-over circuit is carried out analog to digital conversion, obtains digital signal, and 60 pairs of described digital signals of described digital processing element are handled signal calculated amplitude information and phase information.
(4) flicker calculation of parameter, the flicker calculation of parameter, described data processing module 300 carries out scintillation index calculating according to described signal amplitude information and described signal phase information, and calculates the scintillator position.
Described data processing module 300 is set to computing machine 70, and described computing machine 70 is provided with amplitude information collecting unit, phase information collecting unit, scintillation index computing unit and ionospheric scintillation body position computing unit.
Described computing machine 70 carries out scintillation index calculating respectively according to described signal amplitude information and described signal phase information, and calculates the scintillator position.
Monitoring method of the present invention selects polar orbiting meteorological satellite as new detection beacon, the characteristics of polar orbiting meteorological satellite are to cross over the sky, north and south with fast speeds, its signal is used for the ionospheric scintillation monitoring, helps catching fast ionospheric scintillation body and estimation scintillator yardstick.By the ionospheric scintillation monitoring method based on the polar orbiting meteorological satellite signal of the present invention, the signal that can monitor polar orbiting meteorological satellite carries out the ionospheric scintillation monitoring, calculates scintillation index and estimates the position of scintillator.
Should be noted that at last; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although the present invention has been done detailed description with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical solution of the present invention.
Claims (10)
1. ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal, it is characterized in that: be provided with the signal receiving module, signal acquisition process module and the data processing module that are used to receive described polar orbiting meteorological satellite signal, the output terminal of described signal receiving module connects with the input end of described signal acquisition process module, and the output terminal of described signal acquisition process module connects with the input end of described data processing module.
2. the ionospheric scintillation monitor based on the polar-orbiting satellite signal according to claim 1, it is characterized in that: described signal receiving module is provided with antenna, radio-frequency amplifier, first low-converter and change-over circuit, described antenna receives the signal of described polar orbiting meteorological satellite emission, described antenna is attached to the input end of described radio-frequency amplifier, the output terminal of described radio-frequency amplifier connects with the input end of described first low-converter, the output terminal of described first low-converter connects with the input end of described change-over circuit, and the output terminal of described change-over circuit connects with the input end of described signal acquisition process module.
3. the ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal according to claim 2, it is characterized in that: described change-over circuit is set to second low-converter, the input end of described second low-converter connects with the input end of described first low-converter, and the output terminal of described second low-converter connects with the input end of described signal acquisition process module.
4. the ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal according to claim 1, it is characterized in that: described signal acquisition process module is provided with A/D change-over circuit and digital processing element, the input end of described A/D change-over circuit connects with the output terminal of described signal receiving module, the output terminal of described A/D change-over circuit connects with the input end of described digital processing element, and the output terminal of described digital processing element connects with the input end of described data processor module.
5. the ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal according to claim 3, it is characterized in that: described signal acquisition process module is provided with A/D change-over circuit and digital processing element, the input end of described A/D change-over circuit connects with the output terminal of described second low-converter, the output terminal of described A/D change-over circuit connects with the input end of described digital processing element, and the output terminal of described digital processing element connects with the input end of described data processor module.
6. the ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal according to claim 5 is characterized in that: described digital processing element is set to the digital processing element that is made of field programmable gate array processor FPGA and digital signal processor DSP.
7. the ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal according to claim 6, it is characterized in that: described data processing module is set to computing machine.
8. the ionospheric scintillation monitor based on the polar orbiting meteorological satellite signal according to claim 7, it is characterized in that: described computer installation has amplitude information collecting unit, phase information collecting unit, scintillation index computing unit and ionospheric scintillation body position computing unit
The input end of the input end of described amplitude information collecting unit, described phase information collecting unit connects with the output terminal of described digital processing element respectively, the output terminal of the output terminal of described amplitude information collecting unit, described phase information collecting unit connects with the input end of described scintillation index computing unit, and the output terminal of described scintillation index computing unit connects with the input end of described ionospheric scintillation body position computing unit.
9. according to any described ionospheric scintillation monitoring method of claim 1 to 8, it is characterized in that: comprise the following steps: based on the polar orbiting meteorological satellite signal
(1) beacon detects and determines, the signal that the described polar orbiting meteorological satellite that receives based on the ionospheric scintillation monitor detection signal receiver module of polar orbiting meteorological satellite signal is launched is defined as described beacon of monitoring based on the ionospheric scintillation monitor of polar orbiting meteorological satellite signal with described signal;
(2) working signal receives, and signal receiving module receives the signal of polar orbiting meteorological satellite, and described signal is carried out processing and amplifying, and then the signal after the processing and amplifying is carried out down-converted, is intermediate-freuqncy signal with described conversion of signals;
(3) signal acquisition process, described signal acquisition process module is carried out analog to digital conversion to described intermediate-freuqncy signal, signal calculated amplitude information and phase information;
(4) flicker calculation of parameter, described data processing module carries out scintillation index calculating according to described signal amplitude information and described signal phase information, and calculates the scintillator position.
10. the ionospheric scintillation monitoring method based on the polar orbiting meteorological satellite signal according to claim 9 is characterized in that:
Described signal receiving module is provided with antenna, radio-frequency amplifier, first low-converter and change-over circuit, described antenna is attached to the input end of described radio-frequency amplifier, the output terminal of described radio-frequency amplifier connects with the input end of described first low-converter, the output terminal of described first low-converter connects with the input end of described change-over circuit, and the output terminal of described change-over circuit connects with the input end of described signal acquisition process module;
Described antenna receives the signal of described polar orbiting meteorological satellite emission, described radio-frequency amplifier carries out processing and amplifying to described signal, the signal of described first low-converter after to described processing and amplifying carries out the down-converted first time, obtain the first down-converted signal, described change-over circuit carries out second down-converted to the described first down-converted signal, obtains intermediate-freuqncy signal;
Described signal acquisition process module is provided with A/D change-over circuit and digital processing element, the input end of described A/D change-over circuit connects with the output terminal of described second low-converter, the output terminal of described A/D change-over circuit connects with the input end of described digital processing element, and the output terminal of described digital processing element connects with the input end of described data processor module;
Described A/D change-over circuit carries out analog to digital conversion to the described intermediate-freuqncy signal of input, obtains digital signal, and described digital processing element is handled described digital signal, signal calculated amplitude information and phase information;
Described data processing module is set to computing machine, and described computer installation has amplitude information collecting unit, phase information collecting unit, scintillation index computing unit and ionospheric scintillation body position computing unit;
Described computing machine carries out scintillation index calculating respectively according to described signal amplitude information and described signal phase information, and calculates the scintillator position.
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| CN107991690A (en) * | 2017-06-28 | 2018-05-04 | 江苏省测绘工程院 | A kind of computational methods of the scintillation index based on Beidou navigation |
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| CN201965238U (en) * | 2011-01-28 | 2011-09-07 | 国家卫星气象中心 | Ionospheric scintillation monitor based on polar-orbiting meteorological satellite signals |
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Application publication date: 20110907 |