CN112698313A - Distributed meteor radar system and detection method thereof - Google Patents
Distributed meteor radar system and detection method thereof Download PDFInfo
- Publication number
- CN112698313A CN112698313A CN202011245264.5A CN202011245264A CN112698313A CN 112698313 A CN112698313 A CN 112698313A CN 202011245264 A CN202011245264 A CN 202011245264A CN 112698313 A CN112698313 A CN 112698313A
- Authority
- CN
- China
- Prior art keywords
- transmitting
- receiving
- station
- data processing
- meteor
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 38
- 238000004891 communication Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000002592 echocardiography Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005305 interferometry Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/003—Bistatic radar systems; Multistatic radar systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/411—Identification of targets based on measurements of radar reflectivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/418—Theoretical aspects
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention relates to the field of radar detection, and discloses a distributed meteor radar system and a detection method thereof, wherein the technical scheme is characterized by comprising a data processing center, at least one transmitting station and at least two receiving stations, wherein the transmitting station and the receiving stations are time-synchronized; the transmitting station is used for sending a transmitting parameter to the data processing center and radiating a transmitting power signal to the air; the receiving station is used for receiving an echo signal reflected after a power signal radiated and transmitted from the transmitting station meets meteor, and the echo signal is used for the data processing center to send; the data processing center is used for processing and calculating according to the emission parameters and the echo signals, can realize synchronous operation of time and space, and has the advantages of wide coverage range, large number of popular detection, space-time resolution and high data reliability.
Description
Technical Field
The invention relates to the field of radar detection, in particular to a distributed meteor radar system and a detection method thereof.
Background
The ionized layer is a partial ionized plasma region with the height range of five, sixty to one or two thousand kilometers above the earth, is the most closely related key level to human activities in the space environment of the day and the ground, and has important influence on radio communication, satellite navigation and positioning, manned space flight and the like. Over 100 tons of solar dust and particulate matter enter the earth's atmosphere in meteor form each day. When meteors enter the earth's atmosphere, typically burning at a height of 70 to 110km, they generate plasma trails that are capable of reflecting electromagnetic waves. Each trail drifts with the wind in the high-rise atmosphere. Ground-based radar can detect tens of thousands of such trails per day. If the radar measures the trail position and determines the radial speed of trail movement caused by wind, the combination of the information of a plurality of meteors can deduce the wind speed and direction of a 70-110 km height area. With the development of meteor radar observation research, according to the characteristics that meteor trail moves and diffuses along with a background atmospheric wind field, the space environment parameters such as a high-rise atmospheric wind field with the height range of 70km to 110km can be obtained, and the method becomes an important means for space environment monitoring and space physical observation research gradually.
In the middle of the 90 s of the 20 th century, narrow-beam radars are generally adopted for observation of meteor radars, ionization trail formed by meteors passing through the narrow beams is measured, and space environment parameters of the area are obtained. In recent decades, with the need of space environment observation and the development of microelectronics and computer technologies, an all-sky meteor wind measuring radar observation technology has been developed and matured gradually, compared with the narrow-beam meteor radar observation technology, the all-sky meteor radar adopts wide-beam emission and omnidirectional receiving antenna space point distribution interferometry, namely, the arrival direction of meteor signals is determined by phase difference between antennas, and the novel meteor radar system has the advantages of more meteor detection, relatively simple equipment, lower emission power, small antenna field, low maintenance cost, suitability for long-term observation and the like, and is more and more valued by people. At present, dozens of various meteor radars are in operation in the world.
The existing single-station meteor radar adopts an interference processing algorithm, and the time resolution is generally 30-60 minutes because the positions and the speeds of a plurality of independent meteor tracks at a certain height need to be counted, wherein the meteor trails which are mainly obtained are deviated from the zenith by 40-60 degrees. The method is a direction of the technical development of the meteor radar, and the method improves the number of meteors detected in unit time to shorten time resolution.
Disclosure of Invention
The invention aims to provide a distributed meteor radar system and a detection method thereof, which can realize synchronous operation of time and space and have the advantages of wide coverage range, large number of detection popularity, space-time resolution and high data reliability.
The technical purpose of the invention is realized by the following technical scheme: a distributed meteor radar system comprises a data processing center, at least one transmitting station and at least two receiving stations, wherein the transmitting station and the receiving stations are time-synchronized;
the transmitting station is used for sending a transmitting parameter to the data processing center and radiating a transmitting power signal to the air;
the receiving station is used for receiving an echo signal reflected after a power signal radiated and transmitted from the transmitting station meets meteor, and the echo signal is used for the data processing center to send;
and the data processing center is used for processing and calculating according to the emission parameters and the echo signals.
As a preferred technical solution of the present invention, the transmitting station includes a signal processing module, a transmitting module and a transmitting antenna, which are connected correspondingly, the signal processing module is configured to send a working state and a transmitting parameter of the transmitting module to the data processing center, and generate a control signal for controlling the transmitting module after receiving a control command of the data processing center; the transmitting module is used for generating a transmitting power signal according to the control signal and transmitting the transmitting power signal to the transmitting antenna; the transmitting antenna is used for radiating a transmitting power signal to the air.
As a preferred technical solution of the present invention, the receiving station includes a receiving antenna, a receiving module, and a signal/data processing module, which are correspondingly connected, where the receiving antenna is configured to receive an echo signal reflected after a power signal radiated and transmitted from the transmitting antenna encounters meteor, the receiving module is configured to receive the echo signal transmitted from the receiving antenna and transmit the echo signal to the signal/data processing module, and the signal/data processing module is configured to transmit a working state of the receiving module and the echo signal to a data processing center.
As a preferred technical solution of the present invention, the transmitting station and the receiving station are both provided with a time synchronization module and a communication module, and the time synchronization module is configured to complete time synchronization between the transmitting station and the receiving station; the communication module is used for communication among the transmitting station, the receiving station and the data processing center.
As a preferred technical solution of the present invention, the data processing center includes a monitoring unit and a data processing platform that are connected correspondingly, the monitoring unit is used for communication between the transmitting station, the receiving station and the data processing center, and the data processing platform is used for data calculation, storage and distribution.
As a preferred technical scheme of the invention, the radar station comprises a transmitting station and a receiving station, a single-station meteor radar is formed, and the single-station meteor radars cooperatively work in a code division/frequency division mode.
As a preferable technical scheme of the invention, the distance between adjacent radar stations is 5-80 kilometers.
As a preferred technical solution of the present invention, the transmitting antenna is a cross-folded dipole antenna, the receiving antenna is at least 5 cross-folded dipole antennas, and each cross-folded dipole antenna of the receiving antenna is respectively connected to a receiving channel of the receiving module.
As a preferred technical solution of the present invention, the time synchronization module between the transmitting station and the receiving station synchronizes the system timing, frequency and clock of all radar stations through a local oscillator controlled by GPS or beidou.
A distributed meteor radar detection method comprises the following steps:
the data processing center generates a control command and sends the control command to the transmitting station;
the transmitting station responds to the control command to radiate a transmitting power signal to the air and sends the transmitting parameter to the data processing center;
after the transmitting station transmits the power signal, the receiving station synchronously receives an echo signal reflected after the power signal meets meteor;
after receiving the echo signal, the receiving station forwards the echo signal to a data processing center;
and the data processing center performs processing calculation according to the transmitting parameters and the echo signals.
In conclusion, the invention has the following beneficial effects: the transmitting station and the receiving station can be located at the same site or different sites, time and space synchronous operation can be achieved, multi-station cooperative detection can be achieved, the space coverage range of radar detection can be improved, the number of meteors detected in unit time is increased, the purposes of improving space-time resolution and data reliability are achieved, and the problem of the small-scale space environment fine structure with small space scale and quick change is really revealed.
Drawings
FIG. 1 is a system architecture diagram of a distributed meteor radar system of the present invention with one transmitter and multiple receivers;
FIG. 2 is a diagram of a multi-radar cooperative detection system architecture of a distributed meteor radar system of the present invention;
fig. 3 is a structural diagram of a single meteor radar receiving and transmitting unit of the distributed meteor radar system according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention provides a distributed meteor radar system, which comprises a data processing center, at least one transmitting station and at least two receiving stations, wherein the transmitting station and the receiving stations are time-synchronized;
the transmitting station is used for sending a transmitting parameter to the data processing center and radiating a transmitting power signal to the air;
the receiving station is used for receiving echo signals reflected after the power signals radiated and transmitted from the transmitting station meet meteor and used for the data processing center to send the echo signals;
and the data processing center is used for processing and calculating according to the transmitting parameters and the echo signals.
Specifically, the transmitting station comprises a signal processing module, a transmitting module and a transmitting antenna which are correspondingly connected;
the signal processing module is used for sending the working state and the transmitting parameters of the transmitting module to the data processing center and generating a control signal for controlling the transmitting module after receiving a control command of the data processing center;
the transmitting module is used for generating a transmitting power signal according to the control signal and transmitting the transmitting power signal to the transmitting antenna;
the transmitting antenna is used for radiating transmitting power signals to the air.
Specifically, the receiving station comprises a receiving antenna, a receiving module and a signal/data processing module which are correspondingly connected;
the receiving antenna is used for receiving echo signals reflected after power signals radiated and transmitted from the transmitting antenna meet meteor;
the receiving module is used for receiving the echo signal sent by the receiving antenna and sending the echo signal to the signal/data processing module;
and the signal/data processing module is used for sending the working state of the receiving module and the echo signal to the data processing center.
Specifically, the transmitting station and the receiving station are both provided with a time synchronization module and a communication module, and the time synchronization module is used for completing time synchronization of the transmitting station and the receiving station;
the communication module is used for communication among the transmitting station, the receiving station and the data processing center, signals are transmitted among the transmitting station, the receiving station and the data processing center through data transmission links, and the data transmission links comprise radar special channels and general channels.
Specifically, the data processing center includes a monitoring unit and a data processing platform which are correspondingly connected, the monitoring unit is used for communication between the transmitting station, the receiving station and the data processing center, the data processing platform is used for data calculation, storage and distribution, generally, related data of echo signals are processed and fused into a three-dimensional reflectivity factor field and a three-dimensional velocity field.
Specifically, the radar station comprises a transmitting station and a receiving station, and a single-station meteor radar is formed, and the single-station meteor radars cooperatively work in a code division/frequency division mode.
Specifically, the distance between adjacent radar stations is 5-80 kilometers.
Specifically, the transmitting antennas are cross-folded dipole antennas, the transmitting module is a transmitter with peak power exceeding 10kW, the receiving antennas are at least 5 cross-folded dipole antennas, each cross-folded dipole antenna of the receiving antennas is respectively connected to a receiving channel of the receiving module, and an interference measurement method is adopted to process echo signals.
Specifically, a time synchronization module between the transmitting station and the receiving station synchronizes system time sequences, frequencies and clocks of all radar stations through a local oscillator controlled by a GPS or a Beidou.
Corresponding to the system, the invention also provides a distributed meteor radar detection method, which comprises the following steps:
the data processing center generates a control command and sends the control command to the transmitting station;
the transmitting station responds to the control command to radiate a transmitting power signal to the air and sends the transmitting parameter to the data processing center;
after the transmitting station transmits the power signal, the receiving station synchronously receives an echo signal reflected after the power signal meets meteor;
after receiving the echo signal, the receiving station forwards the echo signal to a data processing center;
and the data processing center performs processing calculation according to the transmitting parameters and the echo signals.
As shown in fig. 1, the diagram is a one-shot three-shot architecture schematic diagram, which means that a radar of one station in a three-station radar transmits electromagnetic waves, and the other two radars work below the same frequency point. Under the working mode, the three-station radar realizes frequency, phase and time synchronization by using the time synchronization module. Compared with a single-station radar working mode, the working mode can greatly improve the utilization efficiency of frequency resources, improve the meteor detection quantity and further improve the inversion accuracy of a wind field.
As shown in fig. 2, the schematic diagram is an architecture diagram of three-transmitting and three-receiving, which means that three site radars in the three site radar transmit and receive electromagnetic waves simultaneously and receive echo signals of meteor trail simultaneously. The radar has two working modes during working, namely a code division multiplexing mode is adopted, namely three radars work at the same frequency at the same time, and relevant pulse compression technology processing is carried out by utilizing different emission waveforms to distinguish meteor trail signals of the three different radars, namely that each radar receives echo signals of the three radars. The other is to adopt a frequency division multiplexing working mode, namely three radars respectively independently transmit respective frequency points, the three frequency points have certain frequency intervals, and when receiving, the three radars receive and filter through three channels and then carry out independent signal processing and data analysis. The working mode of multi-station cooperative detection can improve the space coverage of radar detection, increase the number of meteors detected in unit time and be beneficial to actual detection.
As shown in fig. 3, a block diagram of a distributed meteor radar system is provided, where a transmitting station and a receiving station are located at the same location, and a time synchronization module and a communication module are omitted, specifically, the radar includes 1 transmitting antenna, 7 receiving antennas, and a power module, the transmitting module is a transmitter with a peak value of 20kW, the receiving module is an 8-channel digital receiver, a signal processing module of the transmitting station and a signal/data processing module of the receiving station are combined into a signal processor, and a data processing center is a data processing and application terminal in the figure.
The transmitting antenna and the receiving antenna are two-unit yagi antennas, the transmitting antenna and the receiving antenna are respectively arranged in a transmitting-receiving mode, 1 transmitting and 7 receiving are carried out, a wide-beam radar signal is transmitted, and meteor trail echoes in an all-sky view field are observed by utilizing a coherent receiving antenna array formed by orthogonal baselines.
A transmitter: the radar signal amplification device is composed of a transmitting pre-stage module, a transmitting module and other modules, and mainly utilizes an all-solid-state high-power transmitting technology to drive and amplify a radar signal.
A receiver: the radar signal receiving device consists of an excitation source, a receiving channel and a controller, is mainly responsible for generating a pulse signal transmitted by a radar, receiving meteor trail echoes of 70 km-110 km, and amplifying, detecting and the like the echoes.
A signal processor: the device can be composed of a high-speed digital/analog (A/D) sampler, a digital down converter, a digital signal processor and the like, and can complete the processing of radar signal digitization, down conversion, digital filtering and extraction, echo signal pulse compression, multi-pulse accumulation, power spectrum analysis, data reporting and the like.
Data processing and application terminal: the system consists of a control analysis host (comprising an industrial personal computer, a display, a keyboard, a mouse and the like), hardware equipment such as a time system positioning device, a communication terminal, a field monitoring device and the like, radar data processing and application software and the like, and is responsible for configuring the working parameters of the all-sky meteor radar system, controlling the operation of the whole radar system and monitoring the state of the system in real time; and detecting meteor trail echoes, inverting to obtain an atmospheric horizontal wind field and meteor distribution data, and performing the work of processing result display, data packaging, data transmission and the like. The remote terminal can realize the functions of remotely operating the radar on/off, monitoring the working state of the radar, transmitting and acquiring radar observation data and the like.
A power supply module: the power distribution branch machine is composed of a power distribution branch machine, a universal power supply, a control and protection branch machine and a related power distribution network, is responsible for supplying power for the work of all radar equipment, and provides working power for all components such as a transmitter, a receiver, a signal processor and the like.
According to the system and the detection method provided by the invention, the transmitting station and the receiving station can be located at the same site, and can also be separately arranged at different sites, so that the synchronous operation of time and space can be realized, the multi-station cooperative detection can improve the space coverage of radar detection, increase the number of meteors detected in unit time, finally achieve the aims of improving space-time resolution and data reliability, and really disclose the problem of a small-scale space environment refined structure with small space scale and quick change.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. A distributed meteor radar system is characterized in that: the system comprises a data processing center, at least one transmitting station and at least two receiving stations, wherein the transmitting station and the receiving stations are time-synchronized;
the transmitting station is used for sending a transmitting parameter to the data processing center and radiating a transmitting power signal to the air;
the receiving station is used for receiving an echo signal reflected after a power signal radiated and transmitted from the transmitting station meets meteor, and the echo signal is used for the data processing center to send;
and the data processing center is used for processing and calculating according to the emission parameters and the echo signals.
2. A distributed meteor radar system according to claim 1 and further comprising: the transmitting station comprises a signal processing module, a transmitting module and a transmitting antenna which are correspondingly connected, wherein the signal processing module is used for sending the working state and the transmitting parameters of the transmitting module to the data processing center and generating a control signal for controlling the transmitting module after receiving a control command of the data processing center; the transmitting module is used for generating a transmitting power signal according to the control signal and transmitting the transmitting power signal to the transmitting antenna; the transmitting antenna is used for radiating a transmitting power signal to the air.
3. A distributed meteor radar system according to claim 2, further comprising: the receiving station comprises a receiving antenna, a receiving module and a signal/data processing module which are correspondingly connected, wherein the receiving antenna is used for receiving echo signals reflected after power signals radiated and transmitted from the transmitting antenna meet meteor, the receiving module is used for receiving the echo signals transmitted from the receiving antenna and transmitting the echo signals to the signal/data processing module, and the signal/data processing module is used for transmitting the working state of the receiving module and the echo signals to a data processing center.
4. A distributed meteor radar system according to claim 3, wherein: the transmitting station and the receiving station are both provided with a time synchronization module and a communication module, and the time synchronization module is used for completing time synchronization of the transmitting station and the receiving station; the communication module is used for communication among the transmitting station, the receiving station and the data processing center.
5. A distributed meteor radar system according to claim 1 and further comprising: the data processing center comprises a monitoring unit and a data processing platform which are correspondingly connected, the monitoring unit is used for communication among the transmitting station, the receiving station and the data processing center, and the data processing platform is used for data calculation, storage and distribution.
6. A distributed meteor radar system according to claim 1 and further comprising: the radar station comprises a transmitting station and a receiving station, and forms a single-station meteor radar, and the single-station meteor radars cooperatively work in a code division/frequency division mode.
7. A distributed meteor radar system according to claim 6 and further comprising: the distance between adjacent radar stations is 5-80 kilometers.
8. A distributed meteor radar system according to claim 4, further comprising: the transmitting antenna is a cross folded dipole antenna, the receiving antenna is at least 5 cross folded dipole antennas, and each cross folded dipole antenna of the receiving antenna is respectively connected into a receiving channel of the receiving module.
9. A distributed meteor radar system according to claim 4, further comprising: and a time synchronization module between the transmitting station and the receiving station synchronizes the system time sequence, frequency and clock of all radar stations through a local oscillator controlled by a GPS or a Beidou.
10. A distributed meteor radar detection method is characterized by comprising the following steps: the method comprises the following steps:
the data processing center generates a control command and sends the control command to the transmitting station;
the transmitting station responds to the control command to radiate a transmitting power signal to the air and sends the transmitting parameter to the data processing center;
after the transmitting station transmits the power signal, the receiving station synchronously receives an echo signal reflected after the power signal meets meteor;
after receiving the echo signal, the receiving station forwards the echo signal to a data processing center;
and the data processing center performs processing calculation according to the transmitting parameters and the echo signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011245264.5A CN112698313A (en) | 2020-11-10 | 2020-11-10 | Distributed meteor radar system and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011245264.5A CN112698313A (en) | 2020-11-10 | 2020-11-10 | Distributed meteor radar system and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112698313A true CN112698313A (en) | 2021-04-23 |
Family
ID=75506430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011245264.5A Pending CN112698313A (en) | 2020-11-10 | 2020-11-10 | Distributed meteor radar system and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112698313A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253233A (en) * | 2021-06-03 | 2021-08-13 | 中国科学院地质与地球物理研究所 | Analysis processing method and system based on all-sky meteor radar signals |
| CN114994687A (en) * | 2022-05-30 | 2022-09-02 | 中国科学院国家空间科学中心 | Double-frequency atmospheric radar system and control method thereof |
| CN115995674A (en) * | 2023-03-24 | 2023-04-21 | 武汉大学 | All-sky meteor detection receiving antenna, transmitting antenna and antenna array |
| CN116759795A (en) * | 2023-08-11 | 2023-09-15 | 中国科学院地质与地球物理研究所 | All-sky meteor radar transmitting antenna system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5623267A (en) * | 1993-11-30 | 1997-04-22 | Wurman; Joshua M. A. R. | Wide-angle multiple-doppler radar network |
| CN109975808A (en) * | 2019-04-17 | 2019-07-05 | 南京信大气象科学技术研究院有限公司 | A kind of distributed MIMO meteorological radar sounding system |
-
2020
- 2020-11-10 CN CN202011245264.5A patent/CN112698313A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5623267A (en) * | 1993-11-30 | 1997-04-22 | Wurman; Joshua M. A. R. | Wide-angle multiple-doppler radar network |
| CN109975808A (en) * | 2019-04-17 | 2019-07-05 | 南京信大气象科学技术研究院有限公司 | A kind of distributed MIMO meteorological radar sounding system |
Non-Patent Citations (1)
| Title |
|---|
| 陈晓博: "《武汉全天空流量雷达的相位校正问题研究》", 《中国优秀硕士学位论文全文数据库 基础科学辑》, no. 06, pages 1 - 2 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253233A (en) * | 2021-06-03 | 2021-08-13 | 中国科学院地质与地球物理研究所 | Analysis processing method and system based on all-sky meteor radar signals |
| CN113253233B (en) * | 2021-06-03 | 2021-10-01 | 中国科学院地质与地球物理研究所 | Analysis processing method and system based on all-sky meteor radar signals |
| CN114994687A (en) * | 2022-05-30 | 2022-09-02 | 中国科学院国家空间科学中心 | Double-frequency atmospheric radar system and control method thereof |
| CN115995674A (en) * | 2023-03-24 | 2023-04-21 | 武汉大学 | All-sky meteor detection receiving antenna, transmitting antenna and antenna array |
| CN116759795A (en) * | 2023-08-11 | 2023-09-15 | 中国科学院地质与地球物理研究所 | All-sky meteor radar transmitting antenna system |
| CN116759795B (en) * | 2023-08-11 | 2023-11-17 | 中国科学院地质与地球物理研究所 | All-sky meteor radar transmitting antenna system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112698313A (en) | Distributed meteor radar system and detection method thereof | |
| US10768287B2 (en) | Buoy-type high frequency ground-wave radar system | |
| CN104133216B (en) | A kind of radar detection method and device obtaining Low level wind profile | |
| CN104991249B (en) | The MIMO radar monitoring system and monitoring method of a kind of landslide | |
| CN109901150A (en) | A kind of multifunction array radar device and its detection method | |
| Han et al. | Future alternative positioning, navigation, and timing techniques: A survey | |
| CN102331575B (en) | Single-pass full-polarization interferometric synthetic aperture radar (SAR) | |
| CN101980048A (en) | Antenna array forming technology-based ground-based radar system for space debris | |
| RU2440588C1 (en) | Passive radio monitoring method of air objects | |
| CN107064956A (en) | A kind of ground Terahertz cloud detection radar system and its detection method | |
| CN114167505B (en) | Low ionosphere D layer detection system and method based on Loran very low frequency signal | |
| CN102638763A (en) | Underground electromagnetic-wave ultrasound united positioning system and method | |
| CN114200435A (en) | Full-airspace detection radar system and detection method thereof | |
| CN111638509A (en) | Circular phased array secondary radar device based on sparse array technology and detection method thereof | |
| CN113391267A (en) | Frequency spectrum detection system positioning method based on ATDOA algorithm | |
| CN115542243A (en) | Interferometer direction finding method and system based on array antenna | |
| CN113805169A (en) | Space target low-power-consumption small satellite radar searching and tracking method | |
| CN109975808A (en) | A kind of distributed MIMO meteorological radar sounding system | |
| CN111007489B (en) | Buoy type ionized layer double-pass oblique return detection system and method | |
| CN109828276B (en) | Wind profile radar based on interference algorithm | |
| CN106507959B (en) | The ground-based radar two dimension Sparse Array detection system of space junk and method | |
| CN116106949A (en) | Indoor positioning system and method based on pseudolite | |
| CN1964223A (en) | A digital beam earth station system | |
| CN113985461B (en) | Unmanned aerial vehicle detection and decoy system and method | |
| CN115884370A (en) | Indoor base station communication blind area positioning system based on UWB |
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 |