CN104391292A - Radar system using main antenna as helical antenna - Google Patents
Radar system using main antenna as helical antenna Download PDFInfo
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- CN104391292A CN104391292A CN201410652169.5A CN201410652169A CN104391292A CN 104391292 A CN104391292 A CN 104391292A CN 201410652169 A CN201410652169 A CN 201410652169A CN 104391292 A CN104391292 A CN 104391292A
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- antenna
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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
Abstract
The invention discloses a radar system using a main antenna as a helical antenna. The radar system comprises a radar main antenna, a first RF network, a first T/ R assembly, a first mixing module, a first receiving machine, an antenna control module, a secondary antenna, a second RF network, a second T/ R assembly, a second mixing module, a second receiving machine, a driving module, a rotary table and a shaft angle encoder; the radar main antenna and the secondary antenna are both positioned on the rotary table; the radar main antenna, the first RF network, the first T/ R assembly, the first mixing module, the first receiving machine and the antenna control module are connected in a sequence; the secondary antenna, the second RF network, the second T/ R assembly, the second mixing module, the second receiving machine and the antenna control module are sequentially connected in a sequence. According to the radar system, the design of the main antenna and the secondary antenna enables accurate signal receiving of the radar system, and therefore, the problems like inaccurate receiving caused by error can be reduced; meanwhile, the rotary table is controlled through a code, so that the rotating angle of the rotary table is accurate, and as a result, the accurate signal receiving function can be realized.
Description
Technical field
The invention discloses the radar system that a kind of main antenna is helical 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.
Helical antenna (helical antenna) a kind ofly has spiral-shaped antenna.It is made up of the wire spiral that electric conductivity is good, usually uses coaxial feeding, and the heart line of coaxial cable is connected with one end of helix, and the outer conductor of coaxial cable is then connected with the wire netting (or plate) of ground connection.The radiation direction of helical antenna is relevant with helix circumference.When the circumference of helix less than wavelength a lot of time, the strongest direction of radiation is perpendicular to screw axis; When helix circumference is the order of magnitude of a wavelength, most intense radiation appears on spiral rotary direction of principal axis.
Summary of the invention
Technical matters to be solved by this invention is: for the defect of prior art, provides a kind of main antenna to be the radar system of helical antenna, uses helical antenna as radar slave 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 helical 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 helical antenna, and comprise first to the 5th section of microstrip line, the length of microstrip line reduces successively, to connect successively and mutually vertical and be rotated into helicoidal structure from the first microstrip line to the 5th microstrip line.
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 helical antenna as the main antenna of radar, effectively enhance the gain of radar antenna.
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 helical antenna;
Wherein: a to e is respectively the microstrip line of different length.
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 helical 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, described radar main antenna is helical antenna to described helical antenna, and comprise first to the 5th section of microstrip line, the length of microstrip line reduces successively, to connect successively and mutually vertical and be rotated into helicoidal structure from the first microstrip line to the 5th microstrip line.
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.
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 helical 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 helical antenna, and comprise first to the 5th section of microstrip line, the length of microstrip line reduces successively, to connect successively and mutually vertical and be rotated into helicoidal structure from the first microstrip line to the 5th microstrip line.
2. a kind of main antenna as claimed in claim 1 is the radar system of helical 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 helical 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 helical 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 helical 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 |
|---|---|---|---|
| CN201410652169.5A CN104391292A (en) | 2014-11-18 | 2014-11-18 | Radar system using main antenna as helical antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410652169.5A CN104391292A (en) | 2014-11-18 | 2014-11-18 | Radar system using main antenna as helical antenna |
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| Publication Number | Publication Date |
|---|---|
| CN104391292A true CN104391292A (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410652169.5A Withdrawn CN104391292A (en) | 2014-11-18 | 2014-11-18 | Radar system using main antenna as helical antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115963484A (en) * | 2023-03-16 | 2023-04-14 | 中安锐达(北京)电子科技有限公司 | Vehicle-mounted motion platform self-adaptive digital multi-beam radar and detection method thereof |
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| CN1715952A (en) * | 2004-06-28 | 2006-01-04 | 上海无线电设备研究所 | Electronic angle tracing system for tracing microwave radiation source in air |
| CN101105525A (en) * | 2007-07-06 | 2008-01-16 | 哈尔滨工程大学 | Pure phase type broad frequency band microwave radiation source direction finding system and method |
| CN101109812A (en) * | 2007-07-06 | 2008-01-23 | 哈尔滨工程大学 | Tracking apparatus for warning radar major-minor petal and tracing method thereof |
| CN203490360U (en) * | 2013-08-08 | 2014-03-19 | 深圳光启创新技术有限公司 | Echo cancellation system and cover casing |
| CN103885041A (en) * | 2014-02-25 | 2014-06-25 | 西安电子科技大学 | Self-adaption side lobe cancellation method based on recognition processing |
-
2014
- 2014-11-18 CN CN201410652169.5A patent/CN104391292A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1715952A (en) * | 2004-06-28 | 2006-01-04 | 上海无线电设备研究所 | Electronic angle tracing system for tracing microwave radiation source in air |
| CN101105525A (en) * | 2007-07-06 | 2008-01-16 | 哈尔滨工程大学 | Pure phase type broad frequency band microwave radiation source direction finding system and method |
| CN101109812A (en) * | 2007-07-06 | 2008-01-23 | 哈尔滨工程大学 | Tracking apparatus for warning radar major-minor petal and tracing method thereof |
| CN203490360U (en) * | 2013-08-08 | 2014-03-19 | 深圳光启创新技术有限公司 | Echo cancellation system and cover casing |
| CN103885041A (en) * | 2014-02-25 | 2014-06-25 | 西安电子科技大学 | Self-adaption side lobe cancellation method based on recognition processing |
Non-Patent Citations (1)
| Title |
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| 武仓: "散射计转台控制系统设计与实现", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115963484A (en) * | 2023-03-16 | 2023-04-14 | 中安锐达(北京)电子科技有限公司 | Vehicle-mounted motion platform self-adaptive digital multi-beam radar and detection method thereof |
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Application publication date: 20150304 |