CN104375124A - Rader system with nested antenna as main antenna - Google Patents
Rader system with nested antenna as main antenna Download PDFInfo
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- CN104375124A CN104375124A CN201410652234.4A CN201410652234A CN104375124A CN 104375124 A CN104375124 A CN 104375124A CN 201410652234 A CN201410652234 A CN 201410652234A CN 104375124 A CN104375124 A CN 104375124A
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- Prior art keywords
- antenna
- receiver
- module
- turntable
- control module
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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
Abstract
The invention discloses a radar system with a nested antenna as a main antenna. The radar system comprises the main radar antenna, a first radio frequency network, a first T/R module, a first frequency mixing module, a first receiver, an antenna control module, an auxiliary antenna, a secondary radio frequency network, a second T/R module, a second frequency mixing module, a second receiver, a driving module, a rotary table and an axis angle encoder. The main radar antenna and the auxiliary antenna are located on the rotary table, and the main radar antenna, the first radio frequency network, the first T/R module, the first frequency mixing module, the first receiver and the antenna control module are sequentially connected. The auxiliary antenna, the second radio frequency network, the second T/R module, the second frequency mixing module, the second receiver and the antenna control module are sequentially connected. According to the radar system, due to the design of the main antenna and the auxiliary antenna, signal receiving of the radar system can be more accurate, the problems of receiving errors and the like caused by errors are reduced, the rotary table is controlled in an encoding mode, the rotating angle of the rotary table is accurate, and the function of more accurate signal receiving is provided.
Description
Technical field
The invention discloses the radar system that a kind of main antenna is nested type antenna, belong to signal processing technology field.
Background technology
In recent decades, antenna and radar have alarming development, but do not have important breakthrough in basic institute.At present, the kind form of antenna emerges in an endless stream, performance requirement is more and more higher, application is constantly expanded, the active demand of military equipment and national economy promotes and draws the development of making rapid progress of antenna theory and technology, in the various fields of modern science and technology, automatic control technology plays a part more and more important.So-called control automatically, refer to when nobody participates in directly, utilize additional equipment and device, make and, equipment or production run are carried out according to predetermined rule automatically, and in recent decades, the range of application of automatic control technology has expanded in the every field of social life, become the ingredient that can not lack in life, although the shape of radar antenna is very strange, but there is an acting in conjunction, namely be all electromagnetic wave is put together formation wave beam realize directed radiation, wavelength of radio wave just due to various radar is different, their antenna shapes is just made to present difference in different poses and with different expressions, when powerful beam scanning is to control objectives, orientation when receiving echo according to radar indicated by antenna, just the orientation of target can be known, and according to wave beam by radar emission to target and by target reflect back into radar need time, electric wave is in the velocity of propagation in space, just can calculate radar and the direct distance of target.
The patent No. is 201210517630.7, and patent name is a kind of radar system, and this patent proposes the problem of solution for problem in prior art, but in this patent, the function of radar system is very not comprehensive, does not embody the function of radar system fully.
The patent No. is 201180012113.8, patent name is a kind of radar system, and this patent indicates the problem of radar system size and cost aspect in prior art, also provides certain solution, but this solution is too idealized, do not provide concrete actualizing technology means.
Meanwhile, radar system ubiquity complex structure conventional in prior art, the problem that power consumption is larger, requires further improvement.Nested type antenna is that a kind of directionality of launching is good, the Antenna Design type that power magnitude is strong.
Summary of the invention
Technical matters to be solved by this invention is: for the defect of prior art, and provide a kind of main antenna to be the radar system of nested type antenna, nested type antenna is as radar main antenna.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
Main antenna is a radar system for nested type antenna, comprises radar main antenna, the first radio frequency network, a T/R assembly, the first frequency mixing module, the first receiver, antenna control module, slave antenna, the second radio frequency network, the 2nd T/R assembly, the second frequency mixing module, the second receiver, driver module, turntable, shaft-position encoder; Described radar main antenna and slave antenna are all positioned on turntable;
Described radar main antenna, the first radio frequency network, a T/R assembly, the first frequency mixing module, the first receiver, antenna control module are connected successively;
Described slave antenna, the second radio frequency network, the 2nd T/R assembly, the second frequency mixing module, the second receiver, antenna control module are connected successively;
Described antenna control module is also connected with shaft-position encoder with driver module respectively, and described driver module, shaft-position encoder are also connected with turntable respectively;
The first radio frequency network is sent to after described radar main antenna Received signal strength, a T/R assembly is entered after signal is divided into multichannel by described first radio frequency network, signal enters a T/R assembly after the filtering and signal amplification process of a T/R component internal, enter the first frequency mixing module, enter the first receiver after the frequency range that signal frequency conversion receives to the first receiver by the first frequency mixing module, the first receiver is sent into antenna control module after carrying out phase shift, mixing and sampling to signal and is carried out signal analysis;
Signal analysis is carried out after entering antenna control module after the process of described slave antenna Received signal strength respectively through the second radio frequency network, the 2nd T/R assembly, the second frequency mixing module, the second receiver;
After described antenna control module analyzes the signal of the first receiver and the second receiver, send order to driver module, drive turntable to rotate, simultaneously by the rotational angle of shaft-position encoder coding turntable, by antenna control module, turntable is made to turn to corresponding position;
Described radar main antenna is nested type antenna, and comprise outer inverted U microstrip line and be nested in internal layer inverted U microstrip line wherein, the microstrip line of above-mentioned inside and outside layer is the rectangular shape of lower ending opening, and leaves gap between inside and outside layer.
As further prioritization scheme of the present invention, described shaft-position encoder adopts optoelectronic type shaft angle encoder.
As further prioritization scheme of the present invention, described T/R assembly is collection optical fiber distributing unit.
As further prioritization scheme of the present invention, described turntable is multi-axis turntable.
As further prioritization scheme of the present invention, described first receiver is differential mode tracking receiver or Mono-pulse Tracking Receiver.
The present invention adopts above technical scheme compared with prior art, there is following technique effect: this radar system of the present invention combines several functions, improve systematic difference scope, add the design of main antenna and slave antenna, make the Signal reception of radar system more accurate, the problems such as the reception error that minimizing error causes, coding-control turntable simultaneously, the rotational angle of accurate turntable, provides more accurately signal receiving function, modern design, is worthy to be popularized.Adopt nested type antenna as the slave antenna of radar, transmitting directionality is good, and power magnitude is strong.
Accompanying drawing explanation
Fig. 1 is circuit module connection diagram of the present invention.
Fig. 2 is in the present invention, the schematic diagram of nested type antenna;
Wherein: a and b is respectively width and the height of outer inverted U microstrip line, c and d distinguishes width and the height of internal layer inverted U microstrip line.
Embodiment
Be described below in detail embodiments of the present invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Those skilled in the art of the present technique are understandable that, the correlation module related in the present invention and the function of realization thereof are the devices of hardware after improvement and formation thereof, device or system carry computer software programs conventional in prior art or pertinent protocols just can realize, and are not improve computer software programs of the prior art or pertinent protocols.Such as, the computer hardware system after improvement still can realize the specific function of this hardware system by loading existing operation system of software.Therefore, be understandable that, innovation of the present invention is the improvement of hardware module in prior art and connects syntagmatic, but not be only in hardware module for realizing the improvement of software or the agreement of carrying about function.
Those skilled in the art of the present technique are understandable that, the correlation module mentioned in the present invention is the one or more hardware device for performing in step in operation, method, flow process described in the application, measure, scheme.Described hardware device for required object and specialized designs and manufacture, or also can adopt the known device in multi-purpose computer or other known hardware devices.Described multi-purpose computer activates or reconstructs with having storage procedure Selection within it.
Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in instructions of the present invention " comprises " and refers to there is described feature, integer, step, operation, element and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, element, assembly and/or their group.Should be appreciated that, when we claim element to be " connected " or " coupling " to another element time, it can be directly connected or coupled to other elements, or also can there is intermediary element.In addition, " connection " used herein or " coupling " can comprise wireless connections or couple.Wording "and/or" used herein comprises one or more arbitrary unit listing item be associated and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
Circuit module connection diagram of the present invention as shown in Figure 1, main antenna is a radar system for nested type antenna, comprises radar main antenna, the first radio frequency network, a T/R assembly, the first frequency mixing module, the first receiver, antenna control module, slave antenna, the second radio frequency network, the 2nd T/R assembly, the second frequency mixing module, the second receiver, driver module, turntable, shaft-position encoder; Described radar main antenna and slave antenna are all positioned on turntable;
Described radar main antenna, the first radio frequency network, a T/R assembly, the first frequency mixing module, the first receiver, antenna control module are connected successively;
Described slave antenna, the second radio frequency network, the 2nd T/R assembly, the second frequency mixing module, the second receiver, antenna control module are connected successively;
Described antenna control module is also connected with shaft-position encoder with driver module respectively, and described driver module, shaft-position encoder are also connected with turntable respectively;
The first radio frequency network is sent to after described radar main antenna Received signal strength, a T/R assembly is entered after signal is divided into multichannel by described first radio frequency network, signal enters a T/R assembly after the filtering and signal amplification process of a T/R component internal, enter the first frequency mixing module, enter the first receiver after the frequency range that signal frequency conversion receives to the first receiver by the first frequency mixing module, the first receiver is sent into antenna control module after carrying out phase shift, mixing and sampling to signal and is carried out signal analysis;
Signal analysis is carried out after entering antenna control module after the process of described slave antenna Received signal strength respectively through the second radio frequency network, the 2nd T/R assembly, the second frequency mixing module, the second receiver;
After described antenna control module analyzes the signal of the first receiver and the second receiver, send order to driver module, drive turntable to rotate, simultaneously by the rotational angle of shaft-position encoder coding turntable, by antenna control module, turntable is made to turn to corresponding position.
As shown in Figure 2, comprise outer inverted U microstrip line and be nested in internal layer inverted U microstrip line wherein, the microstrip line of above-mentioned inside and outside layer is the rectangular shape of lower ending opening to described nested type antenna, and leaves gap between inside and outside layer.
As further prioritization scheme of the present invention, described T/R assembly is collection optical fiber distributing unit.
As further prioritization scheme of the present invention, described turntable is multi-axis turntable.
As further prioritization scheme of the present invention, described first receiver is differential mode tracking receiver or Mono-pulse Tracking Receiver.
By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from present inventive concept.The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to technical spirit of the present invention, within the spirit and principles in the present invention, to any simple amendment that above embodiment is done, equivalent replacement and improvement etc., within the protection domain all still belonging to technical solution of the present invention.
Claims (5)
1. main antenna is a radar system for nested type antenna, it is characterized in that: comprise radar main antenna, the first radio frequency network, a T/R assembly, the first frequency mixing module, the first receiver, antenna control module, slave antenna, the second radio frequency network, the 2nd T/R assembly, the second frequency mixing module, the second receiver, driver module, turntable, shaft-position encoder; Described radar main antenna and slave antenna are all positioned on turntable;
Described radar main antenna, the first radio frequency network, a T/R assembly, the first frequency mixing module, the first receiver, antenna control module are connected successively;
Described slave antenna, the second radio frequency network, the 2nd T/R assembly, the second frequency mixing module, the second receiver, antenna control module are connected successively;
Described antenna control module is also connected with shaft-position encoder with driver module respectively, and described driver module, shaft-position encoder are also connected with turntable respectively;
The first radio frequency network is sent to after described radar main antenna Received signal strength, a T/R assembly is entered after signal is divided into multichannel by described first radio frequency network, signal enters a T/R assembly after the filtering and signal amplification process of a T/R component internal, enter the first frequency mixing module, enter the first receiver after the frequency range that signal frequency conversion receives to the first receiver by the first frequency mixing module, the first receiver is sent into antenna control module after carrying out phase shift, mixing and sampling to signal and is carried out signal analysis;
Signal analysis is carried out after entering antenna control module after the process of described slave antenna Received signal strength respectively through the second radio frequency network, the 2nd T/R assembly, the second frequency mixing module, the second receiver;
After described antenna control module analyzes the signal of the first receiver and the second receiver, send order to driver module, drive turntable to rotate, simultaneously by the rotational angle of shaft-position encoder coding turntable, by antenna control module, turntable is made to turn to corresponding position;
Described radar main antenna is nested type antenna, and comprise outer inverted U microstrip line and be nested in internal layer inverted U microstrip line wherein, the microstrip line of above-mentioned inside and outside layer is the rectangular shape of lower ending opening, and leaves gap between inside and outside layer.
2. a kind of main antenna as claimed in claim 1 is the radar system of nested type antenna, it is characterized in that: described shaft-position encoder adopts optoelectronic type shaft angle encoder.
3. a kind of main antenna as claimed in claim 1 is the radar system of nested type antenna, it is characterized in that: described T/R assembly is collection optical fiber distributing unit.
4. a kind of main antenna as claimed in claim 3 is the radar system of nested type antenna, it is characterized in that: described turntable is multi-axis turntable.
5. a kind of main antenna as claimed in claim 1 is the radar system of nested type antenna, it is characterized in that: described first receiver is differential mode tracking receiver or Mono-pulse Tracking Receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410652234.4A CN104375124A (en) | 2014-11-18 | 2014-11-18 | Rader system with nested antenna as main antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410652234.4A CN104375124A (en) | 2014-11-18 | 2014-11-18 | Rader system with nested antenna as main antenna |
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| Publication Number | Publication Date |
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| CN104375124A true CN104375124A (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410652234.4A Withdrawn CN104375124A (en) | 2014-11-18 | 2014-11-18 | Rader system with nested antenna as main antenna |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06196924A (en) * | 1992-10-29 | 1994-07-15 | Sanyo Electric Co Ltd | Microwave antenna |
| JP2633654B2 (en) * | 1988-10-20 | 1997-07-23 | 株式会社東芝 | Radar antenna equipment |
| CN102253380A (en) * | 2011-03-24 | 2011-11-23 | 荆州市南湖机械总厂 | Adaptive height measurement device |
| CN102422486A (en) * | 2009-03-11 | 2012-04-18 | 雷斯潘公司 | High gain metamaterial antenna device |
-
2014
- 2014-11-18 CN CN201410652234.4A patent/CN104375124A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2633654B2 (en) * | 1988-10-20 | 1997-07-23 | 株式会社東芝 | Radar antenna equipment |
| JPH06196924A (en) * | 1992-10-29 | 1994-07-15 | Sanyo Electric Co Ltd | Microwave antenna |
| CN102422486A (en) * | 2009-03-11 | 2012-04-18 | 雷斯潘公司 | High gain metamaterial antenna device |
| CN102253380A (en) * | 2011-03-24 | 2011-11-23 | 荆州市南湖机械总厂 | Adaptive height measurement device |
Non-Patent Citations (1)
| Title |
|---|
| 冯莉: "相控阵雷达的数字收发单元设计", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
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Application publication date: 20150225 |