CN1031603A - A kind of continuous wave radar tuner - Google Patents
A kind of continuous wave radar tuner Download PDFInfo
- Publication number
- CN1031603A CN1031603A CN 87106003 CN87106003A CN1031603A CN 1031603 A CN1031603 A CN 1031603A CN 87106003 CN87106003 CN 87106003 CN 87106003 A CN87106003 A CN 87106003A CN 1031603 A CN1031603 A CN 1031603A
- Authority
- CN
- China
- Prior art keywords
- wave radar
- continuous wave
- tuner
- diplexer
- antenna
- 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.)
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- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a kind of continuous wave radar tuner, its characteristics adopt single antenna---diplexer system.It is made up of transmit-receive sharing single antenna, diplexer, oscillation mode transmitter, coupling mechanism, frequency converter, prime amplifier.Circuit of the present invention is simple, volume is little, in light weight, simple in structure, light flexibly, cost is low, shockproof, shock resistance, excellent electrical properties, antenna efficiency height, the covering spatial domain is big, is particularly suitable for the continuous-wave radar system of working under the severe environmental conditions in the open air.
Description
The present invention relates to a kind of reflective continuous wave radar tuner device that extraterrestrial target is measured of being used for.
In radio engineering is used at present, the reflective continuous-wave radar system that extraterrestrial target is measured all adopts the tuner device of double antenna system, promptly adopt two cover antenna systems to send and receive the continuous wave carrier signal of same frequency respectively, finish the isoparametric measurement of the movement velocity of extraterrestrial target.The continuous wave radar tuner device of this double antenna system, though the actual effect of answering is fair, its volume is big, Heavy Weight; Complex structure, the manufacturing cost height; And the high frequency tuner circuit complexity, poor reliability, shock resistance vibrations poor performance.To some reflective continuous-wave radar systems of using under the severe environmental conditions in the open air, the application of the tuner of this double antenna system is very restricted.
The purpose of this invention is to provide transmit-receive sharing single antenna of a kind of usefulness, a diplexer is presented the reflective continuous wave radar tuner device of the continuous wave carrier signal of the same frequency of two-way (transmitting and received signal) simultaneously.This tuner device is that a kind of energy is fit to the volume that the field extreme environment condition uses little, in light weight, simple in structure, light, shake-proof corrosioning impact, reliable operation, novel continuous wave radar tuner device with low cost flexibly.
Task of the present invention is finished as follows: oscillation mode transmitter (D) produces a radiofrequency signal (fo), divides two-way output radiofrequency signal (fo) through coupling mechanism (C).Wherein one the tunnel export frequency converter (E) to; Another road exports diplexer (B) to, flows to antenna (A) by diplexer (B) again, antenna (A) radiofrequency signal (fo) to the dimensional orientation radiation.Radiofrequency signal (fo) arrives target (M) and induces electric current, forms a secondary radiation signal (f who has target (M) information
o+ f
d); Secondary radiation signal (f
o+ f
d) return by target (M) radiation, receive back input diplexer (B) by antenna (A), be delivered in the frequency converter (E) by diplexer (B) again.The radiofrequency signal (fo) that frequency converter (E) is sent here secondary radiation signal (fo+fd) with from coupling mechanism (C) correlation demodulation together goes out the echoed signal that has target information (fd) that will measure, then the echoed signal that has target information (fd) being delivered to prime amplifier (F) amplifies, send into radar host computer again and carry out signal Processing, obtain needed information.
The present invention only uses a transmit-receive sharing single antenna, and diplexer has been finished the presenting of continuous wave carrier signal (received signal and transmit) of the same frequency of two-way.Therefore, circuit is simple, function admirable; Volume is little, and is in light weight, simple in structure, light and flexible; And antenna transmission efficient height, area coverage is big, target acquisition rate height; Shake-proof corrosioning impact, reliable operation; Cheap for manufacturing cost.The present invention through repeatedly practical application test, works under the harsh environmental conditions in the open air reliably, and function admirable is a kind of desirable lightweight continuous wave radar tuner device.
Below in conjunction with accompanying drawing invention is described in further detail.
Accompanying drawing 1 is a functional-block diagram of the present invention.
Accompanying drawing 2 is circuit structure diagrams of oscillation mode transmitter of the present invention.
Accompanying drawing 3 is accompanying drawing 2 oscillation mode transmitters cut-open views along the P-P face.
One embodiment of the present of invention are: oscillation mode transmitter (D) adopts the synthetic oscillation mode transmitter architecture of the two-tube power of cavity frequency stabilization.Referring to accompanying drawing 2, the oscillation mode transmitter is used for carrying out two transistors (BG1), (BG2) that power synthesizes by high Q stabilization frequency cavity body (D2), the main chamber (D1) and being contained in of shaking and forms in the main chamber (D2) that shakes.This oscillation mode transmitter produces the continuous wave radiofrequency signal (fo) that frequency stability is very high, and radiofrequency signal (fo) is divided into two-way output through coupling mechanism (C), and one the tunnel exports frequency converter (E) to, and another road exports diplexer (B) to.Diplexer (B) is made up of three end circulators and screw tuner.Diplexer (B) has three ports (B1), (B2), (B3), and first port (B1) joins with coupling mechanism (C), and second port (B2) joins with antenna (A), and the 3rd port (B3) joins with frequency converter (E).Regulate the screw tuner in the diplexer (B), make the voltage standing wave(VSW) coefficient minimum of diplexer (B) three ports, can make like this signal can only along from first port (B1) to second port (B2), positive dirction from second port (B2) to the 3rd port (B3) is transmitted and can not be transmitted in the other direction, thereby diplexer (B) is separated the secondary radiation signal (fo+fd) of the target (M) of continuous wave radiofrequency signal (fo) that sends and reception.The radiofrequency signal (fo) that diplexer (B) is sent coupling mechanism (C) here is delivered to second port (B2) from first port (B1) and is entered antenna (A), be radiated to target (M) by antenna (A) to dimensional orientation, target (M) induces electric current, form a secondary radiation signal (fo+fd) that has target (M) information, second port (B2) from diplexer (B) after secondary radiation signal (fo+fd) reflects and received by antenna (A) enters diplexer (B), outputs to frequency converter (E) by port (B2) again.Like this, antenna (A) has been finished transmission and the reception to the continuous wave carrier signal simultaneously.
The antenna of the embodiment of the invention (A) adopts improved electromagnetic horn, and fills a kind of shockproof medium of low-loss lightweight in the hollow of electromagnetic horn, for example: polystyrene etc.Make a day linear sealing, shake-proof corrosioning impact has kept the high-transmission efficient of primary antenna, the advantage of broad beam simultaneously again.
Antenna (A) is sent into diplexer (B) through second port (B2) after receiving the secondary radiation signal (fo+fd) that target (M) reflects, along the signal transmission positive dirction of diplexer (B) and transfer to the 3rd port (B3).The 3rd port (B3) joins with the input end of frequency converter (E), frequency converter (E) has a target information echoed signal (fd) secondary radiation signal (fo+fd) with from what radiofrequency signal (fo) correlation demodulation that coupling mechanism (C) is sent into went out required measurement, deliver to prime amplifier (F) and amplify having target information echoed signal (fd) then, after amplifying, send into radar host computer and handle, obtain the information result of required measurement.
Claims (5)
1, a kind of continuous wave radar tuner is made up of coupling mechanism [c], frequency converter [E], prime amplifier [F], it is characterized in that having transmitting-receiving common single antenna [A], a diplexer [B] and an oscillation mode transmitter [D].
2, a kind of continuous wave radar tuner according to claim 1 is characterized in that a kind of low-loss shockproof medium of the inner filling of transmit-receive sharing single antenna (A).
3, a kind of continuous wave radar tuner according to claim 1 and 2 is characterized in that diplexer (B) is made up of circulator and tuner.
4, a kind of continuous wave radar tuner according to claim 1 and 2 is characterized in that oscillation mode transmitter (D) is by two transistor (BG
1), (BG
2) and a frequency stabilization cavity (D
2) form.
5, a kind of continuous wave radar tuner according to claim 3 is characterized in that swinging type transmitter (D) by two transistor (BG
1), (BG
2) and a frequency stabilization cavity (D
2) form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106003 CN1031603A (en) | 1987-08-28 | 1987-08-28 | A kind of continuous wave radar tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106003 CN1031603A (en) | 1987-08-28 | 1987-08-28 | A kind of continuous wave radar tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1031603A true CN1031603A (en) | 1989-03-08 |
Family
ID=4815537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87106003 Withdrawn CN1031603A (en) | 1987-08-28 | 1987-08-28 | A kind of continuous wave radar tuner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031603A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680819A (en) * | 2017-02-16 | 2017-05-17 | 合肥驼峰电子科技发展有限公司 | Millimeter-wave speed measuring radar emission source |
-
1987
- 1987-08-28 CN CN 87106003 patent/CN1031603A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680819A (en) * | 2017-02-16 | 2017-05-17 | 合肥驼峰电子科技发展有限公司 | Millimeter-wave speed measuring radar emission source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |