CN101203772A - Shipborne radar - Google Patents
Shipborne radar Download PDFInfo
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- CN101203772A CN101203772A CNA2006800220537A CN200680022053A CN101203772A CN 101203772 A CN101203772 A CN 101203772A CN A2006800220537 A CNA2006800220537 A CN A2006800220537A CN 200680022053 A CN200680022053 A CN 200680022053A CN 101203772 A CN101203772 A CN 101203772A
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- China
- Prior art keywords
- antenna
- radar
- waveguide
- frequency
- power
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- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/426—Scanning radar, e.g. 3D radar
Abstract
The inventive shipborne radar comprises a transmitting-receiving antenna and a state recognition antenna, a multi-channel rotatable junction, a high-frequency wave-guide duct, a transmitting device, a high-frequency switching device, a high-frequency receiving device and a signal former, a low-frequency receiving device a secondary processing device and a radar control device. The radar is embodied in a form of a three-dimensional radar, is provided with a spatial selectivity and an electronic beam stabilisation in a monitored area using a real time operating system. Said invention makes it possible to increase a target acquisition range, interference immunity, information renewal rate and operational reliability and to reduce a turn-on time.
Description
The present invention relates to the radiolocation field, water discharge and big water discharge naval vessel in can applying the present invention to.The purpose that designs this shipborne radar is to be used for aerial and waterborne target detection and target indication.
Requirement to modern shipborne radar has: improve target detection distance, radar antijamming capability, data updating rate, functional reliability and shortening on time.
With the immediate radar of the present invention be the carrier-borne early warning radar of AN/SPS-49 of USN.According to " The Naval Institute Guide to World Naval Weapons Systems1997-1999 " catalogue, the AN/SPS-49 radar is a kind of C-band (two coordinate radars of 850～942MHz) that are operated in.The cosecant-squared pattern antenna that rotates in surface level provides the area monitoring ability.This antenna is good at the horizontal rock and roll of electromechanical and vertical pitching (pitch and roll) horizontal stability.The transmitter of this AN/SPS-49 radar is a vacuum tube transmitter.
There is following shortcoming in the vertical direction broad beam that the AN/SPS-49 radar antenna transmits and receives:
Spatial selectivity is poor;
Can not the measurement target elevation angle;
In radar detection area, there is directional diagram zero point because of the interference between direct projection radiowave and the sea surface reflection radiowave;
High elevation angle airbound target detects poor performance (with reference to " Guide toRadiolocation ", 1979, the 3 volumes, the 344th page);
Poor anti jamming capability.
In the AN/SPS-49 radar, adopt vacuum tube transmitter to bring following problem:
Functional reliability is low;
Because the former thereby Heavy Weight of transmitter, volume is big, need to use high-voltage power supply, and its control and maintenance complexity;
The radar on time is long.
The purpose of this invention is to provide a kind of C-band radar, this radar can be eliminated above-mentioned deficiency, and perhaps above-mentioned weak point is significantly improved.
The structured flowchart of radar among the present invention has drawn in Fig. 1.This radar comprises following basic composition:
Antenna assembly wherein combines dual-mode antenna 2, IFF antenna 3, waveguide turning joint 4, triple channel coaxial rotation hinge 5 and horizontally rotates driving mechanism 6;
High frequency switch device 8, it comprises waveguide switch 9, waveguide switch circulator 10, waveguide load 11 and power limiting device 12;
HF receiver and ultra-high frequency signal reshaper (shaper) 18 comprise HF receiver 19, heterodyne oscillator (heterodyne) 20, signal shaper 21 and power amplifier 22;
LF receiver 23;
Secondary (secondary) data processing equipment 24;
Shipborne radar is controlled, data are duplicated and display unit 25.
Shipborne radar of the present invention has overcome the shortcoming of its prototype listed earlier, and perhaps comparing weak point has mutually had remarkable improvement, and this is because adopted transceiver gap waveguide array 2 and solid state transmitter 13.Area monitoring is scanned by the wave beam group frequency of carrying out simultaneously in round antenna 2 that rotates in the surface level and the vertical plane and realizes.Therefore can obtain very high spatial selectivity, can carry out target elevation and measure, reduce the influence of sea surface reflection echo, interference and neighbourhood noise significantly radar performance.The scan method of antenna 2 (directional diagram) can also guarantee horizontal rock and roll and vertical pitching electronic stability, thereby simplifies antenna assembly 1 and waveguide transmission line 7 widely, alleviates their weight, dwindles their volume.
In radar of the present invention, adopt transmitter 13 can improve the reliability of radar significantly, farthest simplify the control circuit of transmitter 13, hundreds of times of ground reduce supply voltage, reduce the security protection requirement in transmitter 13 debugging and the course of work, dwindle the size of transmitter 13, shorten the radar on time significantly.
As everyone knows, the characteristics of C-band antenna are that size is big, Heavy Weight, these characteristics have greatly limited the application in their radiolocation at sea, owing to need under strong wind carries situation, work, the weight and the size of antenna assembly there is strict restriction at sea.
In radar of the present invention, adopt lighter gap waveguide frequency scan antenna 2, weight reduction to greatest extent, minification reduces wind and carries.
Dull and stereotyped slotted guide antenna 2 is made up of waveguide bar (waveguide strips), on the narrow limit of waveguide radiating slot is arranged.These waveguide bars are connected with the waveguide power divider of antenna 2, and this power divider is the sinusoidal waveguide (sinusoidalwaveguide) with waveguide-coaxial directional coupler.In antenna 2, adopt to have reduced wall thickness, dwindled the waveguide in cross section.These waveguides are parts of Antenna support structure, have therefore simplified the supporting construction of antenna 2 significantly.Antenna 2 utilizes hinged arm (hinged arms) (anchor pole (anchor rods)) to be fixed on the antenna rotator (rotator), and antenna rotator is installed on the framework, and so simplified structure greatly again reduces the overall height of antenna assembly 1.
Horizontally rotating by frequency adjustment driving mechanism (frequency-regulateddrive) 6 of antenna assembly 1 realizes that this frequency adjustment driving mechanism 6 is made up of phase asynchronous motor and frequency converter.
Use this driving mechanism can allow antenna 2 quicken smoothly and slow down, keep maximum motor drive shaft moment of torsion to avoid anxious simultaneously and quicken and impact (jerks and shocks), fully reduce the mechanical load of antenna assembly 1 construction package.In addition, in the level and smooth process of quickening and slowing down, without any motor start-up current, reach seven times of rate values of fixed speed motor, these characteristics can fully reduce the electrical load that is rotationally connected with motor itself.
Horizontally rotating in the driving mechanism 6 of antenna assembly 1, employing is installed in the outer rotor on the static housing and has and horizontally rotates the horizontally rotate speed reduction unit of motor around static outer rotor rolling, can simplify the structure of driving mechanism 6, dwindle its size, alleviate its weight, improve the intensity and the reliability of antenna assembly 1 rotary drive mechanism 6 simultaneously.
In radar, use dual-mode antenna electronics wave beam stabilization technique can simplify the structure of antenna assembly 1 fully, because no longer need to use the waveguide turning joint.This electronics wave beam stabilization technique is based upon on the basis of radar antenna inertial navigation, stable and data that the field angle system is received.
What provide between dual-mode antenna 2, transmitter 13 and HF receiver 19 that the high frequency switch device 8 of connection adopts is four port waveguide switch circulators 10, in the course of work of antenna 2, this circulator 10 is connected to the input end of antenna 2 with the output terminal of transmitter 13, and the signal that antenna 2 is received is sent to HF receiver 19.In radar debugging, do not have the waveguide load 11 of free space radiation, be connected on the 4th port of circulator 10 as the equivalent device of antenna 2.
Power limiting device 12 (a solid-state protective device of two-stage) can will be reduced to the degree that HF receiver 19 can be accepted by the ultrahigh frequency leakage power of RX path in the moment that produces high power pulse.In addition, the power limiting device can also be protected receiver 19, prevents that it is subjected to the influence of the asynchronous intense radiation that contiguous radar responds on antenna 2.In this case, the power limiting device is operated in automatic control molding formula.
Three-level transmitter 13 adopts a large amount of ultrahigh frequency transistor amplifier modules.Here, power divider and power combiner adopt fish-bone parallel circuit and the 3 decibels of directional couplers of strap line as bridge.All amplifier modules are all by multiple power source 17 power supplies, and therefore, when any one power supply broke down, transmitter 13 output end signal power drop were all minimum.Under the situation that one of two adjacent amplifiers break down,, 120 degree phase shifters are arranged in power divider balance output terminal (even outputs) design in order to keep the overall stability of transmitter 13 output powers.Transmitter 13 uses transistor amplifier that the radar on time is tapered to the computer operating system load time.
Ultra-high frequency signal reshaper 21 is tiny cells, is used for linear frequency modulation (chirping) signal that LF receiver 23 produces is carried out frequency inverted, makes it to become the ultra-high frequency signal that is enough to for transmitter 13 uses.
Superhet LF receiver 23 is used for signal capture and processing, and it comprises as lower device:
Having the dual adaptive digital of the irregular moving target of detectable signal (probing signal) repetition frequency selects;
Coherence distance signal gating and irrelevant distance signal blanking;
Signal integration;
Data are duplicated.
Secondary (secondary) data processing equipment 24 is hardware and software components, and this assembly provides following function:
Under the condition that has receiver noise and interference, carry out input;
Carry out coordinates of targets and movement parameter measurement;
Once with the secondary radar data presentation;
Target Recognition (" enemy and friend ", " aerial/sea ");
Scanning route in the target following process and the control of detectable signal (probingsignal) type;
Coordinates of targets and kinematic parameter generate and send to external system by the digital data communication passage.
On the display screen of device 24, demonstrate radar data, sheet format text data, menu and the touchscreen button of multiwindow pattern, use for operator.In Fig. 1, being electrically connected with arrow between the radar function unit represented.
Produce the intermediate frequency (IF) Linear FM signal in LF receiver 23, this linear FM signal enters high-frequency signal reshaper 21 from its output terminal, converts the intermediate frequency (IF) Linear FM signal to ultra-high frequency signal there.In power amplifier 22,, this signal is sent to the input end of transmitter 13 through after the necessary amplification.Passed through amplifying signal from transmitter 13 outputs,, sent antenna 2 to and radiate by switchgear 8, waveguide transmission line 7, turning joint 4.
The echoed signal that antenna 2 is received arrives the input end of HF receiver 19 through waveguide turning joint 4, waveguide transmission line 7, waveguide switch 9, waveguide junction circulator 10 and power limiting device 12, in HF receiver 19, it is amplified, convert intermediate-freuqncy signal to, further be sent to the input end of LF receiver 23, in LF receiver 23, carry out main processing.This signal is sent to secondary data treating apparatus 24 from LF receiver 23, therein signal is duplicated (duplicated), and sends the information user to.Mode of operation is controlled at radar control, data are duplicated with display unit 25 in realize.
Claims (6)
1. shipborne radar, comprise dual-mode antenna, the IFF antenna, multichannel rotatable joint, the high frequency waveguide transmission line, transmitter, high frequency switch device, HF receiver and signal shaper, LF receiver, secondary data treating apparatus and shipborne radar control module, it is characterized in that this is a kind of three-dimensional shipborne radar, realized spatial selectivity, antenna adopts gap waveguide and frequency-scan technique, the broadside of gap waveguide and narrow limit have dwindled size and have reduced wall thickness, wherein power divider directly is fixed on the radiation item, antenna is installed with constant support, this constant support is made up of hinge arms, be installed on the antenna pedestal rotational shell, the speed reduction unit that horizontally rotates with motor is positioned on the antenna pedestal rotational shell, roll around the outer rotor that is installed on the static housing, rotation drives by frequency speed of increasing and decrease control asynchronous motor and provides, transmitter adopts three grades of solid-state power amplifiers of the amplifier with a large amount of concurrent workings, simultaneously, power divider and power combiner all adopt 3 decibels of directional couplers, and the stable 120 degree phase shifts by the balanced amplifier output of output power realize.
2. device as claimed in claim 1, its feature are that also except described waveguide detection channels, described multichannel rotatable joint also comprises three recognition system concentric cable.
3. device as claimed in claim 1, its feature also is to be attached to the waveguide switch of described waveguide transmission line, and this waveguide switch is one 90 degree switching valve system.
4. device as claimed in claim 1, its feature are also and the combined high frequency switch device of antenna equivalence mode of operation switch that this high frequency switch device is one four a port waveguide switch circulator, and its 4th arm has connected waveguide load.
5. device as claimed in claim 1, its feature also is the heterodyne oscillator on amplifier-multiplier bar, this amplifier-multiplier bar has the quartzy king oscillator of switching mode multiplier and continuous working, for the signal that radiate and receive provides high coherence, the high precision target localization, shorten the frequency select time, improve signal spectrum purity, improve the efficient of moving target indication.
6. device as claimed in claim 1; its feature also is the power limiting device; this power limiting device is a solid-state protective device of two-stage; during direct impulse; by current impulse control from the shipborne radar control module; at interval, enter automatic control molding formula, by the high power pulse control of outside radar.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2005125552 | 2005-08-11 | ||
| RU2005125552/09A RU2293405C1 (en) | 2005-08-11 | 2005-08-11 | Shipboard radar station |
| PCT/RU2006/000378 WO2007021217A1 (en) | 2005-08-11 | 2006-07-14 | Shipborne radar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101203772A true CN101203772A (en) | 2008-06-18 |
| CN101203772B CN101203772B (en) | 2011-09-07 |
Family
ID=37757810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800220537A Active CN101203772B (en) | 2005-08-11 | 2006-07-14 | Shipborne radar |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101203772B (en) |
| RU (1) | RU2293405C1 (en) |
| WO (1) | WO2007021217A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166138A (en) * | 2014-08-13 | 2014-11-26 | 芜湖航飞科技股份有限公司 | Ship-borne radar |
| WO2017117860A1 (en) * | 2016-01-05 | 2017-07-13 | 四川九洲电器集团有限责任公司 | Radar system integrated with friend/foe attribute identification |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3092508B1 (en) * | 2014-01-09 | 2018-01-31 | Fincantieri S.p.A. | Bistatic radar |
| RU2582087C1 (en) * | 2015-02-19 | 2016-04-20 | Акционерное общество "НИИ измерительных приборов-Новосибирский завод имени Коминтерна" (АО "НПО НИИИП-НЗиК") | Method for radar scanning of space |
| RU2611890C1 (en) * | 2015-12-08 | 2017-03-01 | Акционерное общество "Конструкторское бюро "Аметист" | Antenna post of independent radar control system |
| CN107192987A (en) * | 2017-07-27 | 2017-09-22 | 南京俊禄科技有限公司 | A kind of marine radar transceiver device |
| RU2759515C1 (en) * | 2020-08-18 | 2021-11-15 | Акционерное общество "Научно-производственное предприятие "Салют" | System for controlling a three-dimensional radio location station of a ship, an antenna apparatus and a drive part therefor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2102533B (en) * | 1981-07-16 | 1984-09-26 | Marconi Co Ltd | Buffer assemblies |
| SU1551188A1 (en) * | 1988-04-19 | 1992-03-30 | Предприятие П/Я А-3202 | Aerial swivel support arrangement |
| CN1034126C (en) * | 1990-03-15 | 1997-02-26 | 中国科学院化学研究所 | Gutta-percha sealing material for wave-guide antenna of airborne radar |
| RU2206155C1 (en) * | 2002-04-17 | 2003-06-10 | Открытое акционерное общество "Научно-производственное объединение "Алмаз" им. акад. А.А. Расплетина" | Transceiver module |
| RU2254593C1 (en) * | 2003-10-14 | 2005-06-20 | Федеральное государственное унитарное предприятие "Государственный московский завод "Салют" | Shipboard three-dimensional radar station and antenna arrangement for it |
-
2005
- 2005-08-11 RU RU2005125552/09A patent/RU2293405C1/en active
-
2006
- 2006-07-14 WO PCT/RU2006/000378 patent/WO2007021217A1/en active Application Filing
- 2006-07-14 CN CN2006800220537A patent/CN101203772B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166138A (en) * | 2014-08-13 | 2014-11-26 | 芜湖航飞科技股份有限公司 | Ship-borne radar |
| WO2017117860A1 (en) * | 2016-01-05 | 2017-07-13 | 四川九洲电器集团有限责任公司 | Radar system integrated with friend/foe attribute identification |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2293405C1 (en) | 2007-02-10 |
| CN101203772B (en) | 2011-09-07 |
| WO2007021217A1 (en) | 2007-02-22 |
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