CN202995031U - Structure layout of dual-polarization weather laser transceiving system - Google Patents
Structure layout of dual-polarization weather laser transceiving system Download PDFInfo
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- CN202995031U CN202995031U CN2012207078361U CN201220707836U CN202995031U CN 202995031 U CN202995031 U CN 202995031U CN 2012207078361 U CN2012207078361 U CN 2012207078361U CN 201220707836 U CN201220707836 U CN 201220707836U CN 202995031 U CN202995031 U CN 202995031U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The utility model relates to a structure layout of a dual-polarization weather laser transceiving system, which is characterized in that an electronic case is installed in the center of the back of an antenna, a pitching sleeve of the antenna is connected on left and right side walls of the electronic hose, a waveguide connection port is formed on the part of the back wall corresponding to a feeder line, a receiver, a receiver front end, a power supply, an IFD digital intermediate frequency module, a transmitter system, a signal processor and a transmitter radiating fan are arranged in the electronic host, the receiver front end is located on the back wall of the electronic case and is respectively connected with two connection ports of the feeder line through a first waveguide bend and a second waveguide bend which are of the same length, the receiver system and the transmitter system keep a constant relative position with the antenna feeder line, and the transmitter is connected with a transmission port of the feeder line through the transmission waveguide.
Description
Technical field
The invention belongs to mechano-electronic integration technology field, relate to the topology layout of a kind of dual-polarization weather radar receive-transmit system.
Background technology
The principle of work of dual-polarization weather radar: by the skyward cloud layer radiated electromagnetic wave of antenna feeder wave beam, electromagnetic wave detection meteorologic phenomena and reflection echo, receiver is linear without distortion to be received and amplifies weather echo, comprise horizontal polarization component and vertical polarization component in echo, process through data the meteorologic parameter that calculates the weather target after reception, in order to distinguish the kind of water particle, require radar the polarization radar resolution of vectors can be become horizontal polarization component and vertical polarization component, with the polarization parameter of determining the meteorological particle of being surveyed with particle is classified.
The topology layout of domestic existing dual-polarization weather radar be all with equipment mounting arrangements such as transmitter, receivers in an electronics rack, electronics rack is arranged on certain position near antenna, electronics rack separates with antenna system.When radar system was built, the equipment in electronics rack was connected with the feeder line of antenna system with waveguide, and a branch road is that transmitter is connected with the emission port of feeder line, and another two branch roads are that receiver is connected with vertical receiving port with the horizontal receiving port of feeder line part respectively.Because the dual-polarization weather radar all adopts orientation and pitching bidimensional mechanical scanning form, so just need receiving increase two-way orientation rotation joint and two-way pitching rotary joint on waveguide arm, the introducing of rotary joint is except receiving signal amplitude and phase equalization impact very greatly on the horizontal/vertical two-way, during the antenna rotation, the amplitude of signal and phase place can change along with the anglec of rotation.
The dual-polarization weather radar requires the phase equalization of horizontal receiving branch and vertical receiving branch very high, and phase place is unanimously spent less than 1 °.The technical merit of at present domestic two-way waveguide junction phase equalization can reach 4 °, and the technical merit of external two-way waveguide junction phase equalization can reach 1 °, but price is very expensive, and very high to installation requirement, can not satisfy dual-polarization weather radar cost requirement.Domestic existing dual-polarization weather radar has all adopted waveguide junction, and the dual-polarization parameter error that causes measuring meteorological particle is larger.Not only the polarization parameter dispersion of the meteorological particle that provides of the radar of different model is larger, and larger polarization measurement parameter error also can appear in the radar of same model different batches.
Based on the analysis of above problem, if can guarantee that two receiving branchs do not use waveguide junction, to receive the electrical length of waveguide measure-alike but also will guarantee to connect two-way, just can satisfy the racon requirement.
If weather radar is vehicle-mounted machine dynamic formula radar in addition, remove when receiving transportation at radar, also require antenna and antenna pedestal can lodge in the mobile unit cabin.Separate with antenna if will receive and dispatch rack, each radar is removed the time receiving, and one section waveguide all needs to dismantle; When each radar set up, the waveguide that all needs to dismantle was connected in the transmitting branch and receiving branch of radar, can increase setting up the time of weather radar like this, also can reduce the reliability of radar.
Summary of the invention
The technical matters that solves
For fear of the deficiencies in the prior art part, the present invention proposes the topology layout of a kind of dual-polarization weather radar receive-transmit system, and integrated high electronic equipment in receive-transmit system is mounted in the electronic cabinet at antenna back.Be used for solving the technical matters that weather radar receives the consistent degree of two paths of signals phase place.
Technical scheme
The topology layout of a kind of dual-polarization weather radar receive-transmit system is characterized in that: electronic cabinet 3 is arranged on the centre, back of antenna 1, connects the pitch axis of antenna on the left and right sidewall of electronic cabinet 3, the position open waveguide connector of the corresponding feeder line of rear wall; The inside of described electronic cabinet 3 is provided with receiver 4, receiver front end 9, power supply 5, IFD digital intermediate frequency module 6, transmitter system 7, signal processor 8 and transmitter radiator fan 13; Described receiver front end 9 is positioned at the rear wall of electronic cabinet, and first waveguide bend 11 identical by electrical length is connected with two receiving ports of feeder line respectively with the second waveguide bend 12; Between described receiver system and transmitter system and feeder, relative position immobilizes; Described transmitter is connected with the emission port of feeder line by transmit waveguide 10.
The center of described electronic cabinet 3 is power supply 5, and the left and right sides is respectively receiver 4 and solid state transmitter system 7, and IFD digital intermediate frequency module 6 is located on power supply 5; Signal processor 8 is positioned at the top of receiver 4, and the top of transmitter system 7 is provided with transmitter radiator fan 13.
Beneficial effect
A kind of dual-polarization weather radar receive-transmit system topology layout that the present invention proposes, when design dual-polarization weather radar station, the equipment such as frequency source system, transmitter system, receiver system and signal processor are arranged in the electronic cabinet of antenna back, this cabinet and antenna system are fixed with one and carry out luffing, realize the work scanning of weather radar.Simultaneously due to transmitting branch with are connected a receiving branch and all connect with waveguide, there is no waveguide junction, and two-way to receive the electrical length that connects waveguide also consistent.Adopt this topology layout form, eliminated waveguide junction, reduced the measuring error that the phase place that causes due to waveguide junction and amplitude inconsistency are brought.Owing to having cancelled waveguide junction, receive the demanding technical barrier of two-way phase equalization for effective solution and beyond thought technique effect occurred, satisfied radar system and received horizontal polarization component and the conforming technical requirement of vertical polarization component.
Compared with prior art, dual polarization antennas radar transmit-receive system architecture layout of the present invention has following features:
(1) compare with existing dual-polarization weather radar antenna receiving-sending system layout mode, cancelled rotary joint on transmitting branch and receiving branch, satisfied horizontal/vertical two-way phase of received signal consistance.Greatly improved the measuring accuracy of radar.
(2) adopted the solid state transmitter of small volume, the equipment such as emission coefficient, receiving system have been arranged in the electronic cabinet at antenna back, transmitting branch and receiving branch do not comprise waveguide junction, have improved reliability and the device integration of this radar; Significantly improve radar and set up the convenience of removing receipts.
Description of drawings
Fig. 1: the antenna schematic diagram with dual polarization antennas radar transmit-receive system architecture layout;
Fig. 2: dual polarization antennas radar transmit-receive system architecture schematic layout pattern;
The centre section waveguide connection diagram of Fig. 3: Fig. 2;
The 1-antenna, 2-center of antenna body, 3-electronic cabinet, 4-receiver, 5-power supply, 6-IFD digital intermediate frequency module, 7-transmitter system, 8-signal processor, 9-receiver front end, 10-transmit waveguide, 11-the first waveguide bend, 12-the second waveguide bend, 13-blower fan and fan.
Embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
The present embodiment is referring to Fig. 1 and Fig. 2, adopted the be connected form of electronic cabinet of antenna back: designing antenna pitch axis on the left and right sidewall of electronic cabinet, the right lower quadrant installation radar transmitter system of cabinet, the cabinet lower left quarter is installed the solid-state radar receiver, receiver front end is installed at the transmitter rear portion, the cabinet upper left quarter is installed signal processor, and power supply and I digital intermediate frequency module are installed in the middle of transmitter and receiver; Position open waveguide connector at the corresponding feeder line of the rear wall of electronic cabinet; The emission port of transmitter being connected with feeder line with a waveguide connects; Be connected with receiver front end with the receiving port of the identical waveguide bend of two electrical length with feeder line; Transmitting branch is all directly to be connected with the feed of antenna by hard waveguide with two receiving branchs, cancelled waveguide junction, make the phase equalization that receives two-way greatly improve, the amplitude and the phase place that receive two-way require all in the radar system indication range.Between receiver system and transmitter system and feeder, relative position is changeless, thereby reaches the purpose of cancelling waveguide junction.
Referring to Fig. 3, the waveguide bend 11 that two electrical length of receiver front end 9 use are identical is connected with two receiving ports of feeder line respectively with waveguide bend 12, and transmit waveguide 10 of transmitter system 7 use is connected with the emission port of feeder line.
the topology layout of this receive-transmit system is applied on certain weather radar project, through field trial, and carry out comparing with more domestic and international dual-polarization weather radars, test findings shows: transmitter system and receiver system are arranged in the electronic cabinet at antenna back, cancelled waveguide junction, eliminate waveguide junction and caused the inconsistent impact of horizontal/vertical two-way phase of received signal, and the electrical length that receives two-way connection waveguide is equated, the phase equalization that receives two-way is improved greatly, satisfy radar system and received horizontal polarization component and the conforming technical requirement of vertical polarization component.In addition, the layout of this receive-transmit system also improves the functional reliability of radar complete machine, has improved the radar equipment integrated level, for the high maneuverability of this radar has been made contribution.
This receive-transmit system topology layout scheme can be applied on other similar radar, improves the phase equalization that radar receives two-way, eliminates waveguide junction and causes the inconsistent impact of horizontal/vertical two-way phase of received signal.
Claims (2)
1. dual-polarization weather radar receive-transmit system topology layout, it is characterized in that: electronic cabinet (3) is arranged on the centre, back of antenna (1), connect the pitch axis of antenna on the left and right sidewall of electronic cabinet (3), the position open waveguide connector of the corresponding feeder line of rear wall; The inside of described electronic cabinet (3) is provided with receiver (4), receiver front end (9), power supply (5), IFD digital intermediate frequency module (6), transmitter system (7), signal processor (8) and transmitter radiator fan (13); Described receiver front end (9) is positioned at the rear wall of electronic cabinet, and first waveguide bend (11) identical by electrical length is connected with two receiving ports of feeder line respectively with the second waveguide bend (12); Between described receiver system and transmitter system and feeder, relative position immobilizes; Described transmitter is connected with the emission port of feeder line by transmit waveguide (10).
2. dual-polarization weather radar receive-transmit system according to claim 1 topology layout, it is characterized in that: the center of described electronic cabinet (3) is power supply (5), the left and right sides is respectively receiver (4) and solid state transmitter system (7), and IFD digital intermediate frequency module (6) is located on power supply (5); Signal processor (8) is positioned at the top of receiver (4), and the top of transmitter system (7) is provided with transmitter radiator fan (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207078361U CN202995031U (en) | 2012-12-20 | 2012-12-20 | Structure layout of dual-polarization weather laser transceiving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207078361U CN202995031U (en) | 2012-12-20 | 2012-12-20 | Structure layout of dual-polarization weather laser transceiving system |
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| CN202995031U true CN202995031U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207078361U Withdrawn - After Issue CN202995031U (en) | 2012-12-20 | 2012-12-20 | Structure layout of dual-polarization weather laser transceiving system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981163A (en) * | 2012-12-20 | 2013-03-20 | 西安电子工程研究所 | Dual-polarization weather radar structure integrating antenna and transmit-receive system |
| CN109493677A (en) * | 2018-12-29 | 2019-03-19 | 安徽中晨智联科技有限责任公司 | Radar countermeasures reconnaissance guarantee skill training equipment |
| CN110515042A (en) * | 2019-08-29 | 2019-11-29 | 成都锦江电子系统工程有限公司 | Dual polarization radar antenna receives system |
-
2012
- 2012-12-20 CN CN2012207078361U patent/CN202995031U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981163A (en) * | 2012-12-20 | 2013-03-20 | 西安电子工程研究所 | Dual-polarization weather radar structure integrating antenna and transmit-receive system |
| CN109493677A (en) * | 2018-12-29 | 2019-03-19 | 安徽中晨智联科技有限责任公司 | Radar countermeasures reconnaissance guarantee skill training equipment |
| CN110515042A (en) * | 2019-08-29 | 2019-11-29 | 成都锦江电子系统工程有限公司 | Dual polarization radar antenna receives system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20140611 |
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| RGAV | Abandon patent right to avoid regrant |