CN109283527A - A kind of portable surveillance radar - Google Patents
A kind of portable surveillance radar Download PDFInfo
- Publication number
- CN109283527A CN109283527A CN201811498114.8A CN201811498114A CN109283527A CN 109283527 A CN109283527 A CN 109283527A CN 201811498114 A CN201811498114 A CN 201811498114A CN 109283527 A CN109283527 A CN 109283527A
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- signal
- triode
- capacitor
- transport
- resistance
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Classifications
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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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of portable surveillance radars, including signal acquisition circuit, frequency modulation calibrates circuit and amplifier output circuit, the signal acquisition circuit acquires portable surveillance radar microwave signal frequency, with in input frequency modulation calibration circuit after inductance L1 and capacitor C2 composition LC filter circuit filtering, the frequency modulation calibration circuit is with transport and placing device AR1 and resistance R1 ~ resistance R3 and capacitor C3 ~ capacitor C5 composition FM circuit to the processing of signal frequency modulation, simultaneously with transport and placing device AR1 with phase amplified signal, and the abnormal signal in signal is filtered out with triode Q3 and triode Q4 composition composite switch circuit, wherein triode Q2, triode Q1 feedback signal is to transport and placing device AR1, play the output signal current potential of feedback calibration transport and placing device AR1, the last amplifier output circuit uses amplifier Device AR2 can in real time calibrate portable surveillance radar microwave signal, and can compensate portable surveillance radar microwave signal in time with exporting after phase amplified signal.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to a kind of portable surveillance radar.
Background technique
Surveillance radar surveillance radar, is divided into aircraft-warning radar and sea guard radar, for finding and monitoring sea, sky
Middle target matches the enemy and we's attribute for determining target with identification of friend or foe, provides mesh to missile-guidance radar and fire control radar
Mark instruction etc., wherein portable surveillance radar is to use microwave signal feedback principle, the effect of realization detection target, but if
Microwave signal frequency is interfered by other high-frequency signals, will lead to radar microwave signal frequency hopping, feedback signal underpower,
It is portable surveillance radar failure.
So the present invention provides the new scheme of one kind to solve the problems, such as this.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide a kind of portable warnings
Radar, have be skillfully constructed, the characteristic of human oriented design, portable surveillance radar microwave signal can be calibrated in real time, and energy
Portable surveillance radar microwave signal is compensated in time.
Its solve technical solution be a kind of portable surveillance radar, including signal acquisition circuit, frequency modulation calibration circuit and
Amplifier output circuit, the signal acquisition circuit acquires portable surveillance radar microwave signal frequency, with inductance L1 and capacitor
Input frequency modulation is calibrated in circuit after C2 forms the filtering of LC filter circuit, and the frequency modulation calibration circuit uses transport and placing device AR1 and resistance
R1 ~ resistance R3 and capacitor C3 ~ capacitor C5 composition FM circuit is mutually put to the processing of signal frequency modulation, while with transport and placing device AR1 is same
Big signal, and the abnormal signal in signal is filtered out with triode Q3 and triode Q4 composition composite switch circuit, wherein three
Pole pipe Q2, triode Q1 feedback signal to transport and placing device AR1 play the output signal current potential of feedback calibration transport and placing device AR1, last institute
Amplifier output circuit is stated with transport and placing device AR2 with exporting after phase amplified signal, that is to say as portable surveillance radar microwave signal
Thermal compensation signal；
The frequency modulation calibration circuit includes capacitor C3, one end of a terminating resistor R1 of capacitor C3, another termination electricity of capacitor C3
Hinder one end of R2, capacitor C4, the output end of the base stage of another termination triode Q3 of resistance R2 and transport and placing device AR1, resistance R5
The anode of one end, the base stage of triode Q2 and diode D2, one end of another termination capacitor C5 of resistance R1 and resistance R3's
The collector of the non-inverting input terminal of one end, the other end of another termination capacitor C4 of resistance R3 and transport and placing device AR1, triode Q2,
The base stage of another termination triode Q1 of capacitor C5, one end of the emitter connecting resistance R4 of triode Q1, the other end of resistance R4
The inverting input terminal of transport and placing device AR1 and the other end of resistance R5 are connect, the cathode of diode D2 connects the emitter and electricity of triode Q2
One end of R7 and the emitter of triode Q4, the other end ground connection of resistance R7 are hindered, the base stage of triode Q4 connects triode Q3's
Emitter, the collector of triode Q4 and the collector of triode Q3 meet power supply+5V.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1, with transport and placing device AR1 and resistance R1 ~ resistance R3 and capacitor C3 ~ capacitor C5 composition FM circuit to signal frequency modulation at
Reason, using capacitor C3, capacitor C4 charge and discharge electrical property, when signal is high-frequency signal, capacitor C4 charges at this time, reduces transport and placing device
AR1 non-inverting input terminal signal frequency, when signal is low frequency signal, capacitor C3 electric discharge improves transport and placing device AR1 non-inverting input terminal letter
Number frequency plays the role of calibrating signal frequency, anti-stop signal frequency hopping；
2. the abnormal signal in signal is filtered out with triode Q3 and triode Q4 composition composite switch circuit, when signal is different
When normal low level signal, triode Q2 is connected, and in feedback signal to transport and placing device AR1 non-inverting input terminal, is improved frequency modulation and is calibrated circuit
Output signal current potential, when signal is abnormal high level signal, triode Q1 is connected at this time, and feedback signal is anti-to transport and placing device AR1
In phase input terminal, play the role of calibration signal current potential, realizes the automatic calibration to signal.
Detailed description of the invention
Fig. 1 is a kind of module map of portable surveillance radar of the present invention.
Fig. 2 is a kind of schematic diagram of portable surveillance radar of the present invention.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through attached drawing 2
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is with specification
Attached drawing is reference.
Embodiment one, a kind of portable surveillance radar, including signal acquisition circuit, frequency modulation calibration circuit and amplifier output electricity
Road, the signal acquisition circuit acquire portable surveillance radar microwave signal frequency, with inductance L1 and capacitor C2 composition LC filter
After wave circuit filtering in input frequency modulation calibration circuit, frequency modulation calibration circuit with transport and placing device AR1 and resistance R1 ~ resistance R3 with
And capacitor C3 ~ capacitor C5 composition FM circuit uses transport and placing device AR1 with phase amplified signal the processing of signal frequency modulation, and
The abnormal signal in signal is filtered out with triode Q3 and triode Q4 composition composite switch circuit, wherein triode Q2, three poles
Pipe Q1 feedback signal plays the output signal current potential of feedback calibration transport and placing device AR1, the last amplifier output to transport and placing device AR1
Circuit, with exporting after phase amplified signal, that is to say with transport and placing device AR2 as the thermal compensation signal of portable surveillance radar microwave signal；
The frequency modulation calibration circuit forms FM circuit with transport and placing device AR1 and resistance R1 ~ resistance R3 and capacitor C3 ~ capacitor C5
To the processing of signal frequency modulation, using capacitor C3, capacitor C4 charge and discharge electrical property, when signal is high-frequency signal, capacitor C4 charges at this time,
Transport and placing device AR1 non-inverting input terminal signal frequency is reduced, when signal is low frequency signal, it is same to improve transport and placing device AR1 for capacitor C3 electric discharge
Phase input end signal frequency plays the role of calibrating signal frequency, while with transport and placing device AR1 with phase amplified signal, compensation
The conduction loss of signal, and filter out the exception in signal with triode Q3 and triode Q4 composition composite switch circuit and believe
Number, when signal is abnormal low level signal, triode Q2 is connected, and in feedback signal to transport and placing device AR1 non-inverting input terminal, is improved
Frequency modulation calibrates circuit output signal current potential, and when signal is abnormal high level signal, triode Q1 is connected at this time, and feedback signal is extremely
In transport and placing device AR1 inverting input terminal, play the role of calibration signal current potential, one end of a terminating resistor R1 of capacitor C3, capacitor
One end of another terminating resistor R2 of C3, capacitor C4, the base stage of another termination triode Q3 of resistance R2 and transport and placing device AR1's is defeated
Outlet, one end of resistance R5, the base stage of triode Q2 and diode D2 anode, the one of another termination capacitor C5 of resistance R1
The one end at end and resistance R3, the other end of another termination capacitor C4 of resistance R3 and non-inverting input terminal, the triode of transport and placing device AR1
The collector of Q2, the base stage of another termination triode Q1 of capacitor C5, one end of the emitter connecting resistance R4 of triode Q1, resistance
The inverting input terminal of another termination transport and placing device AR1 of R4 and the other end of resistance R5, the cathode of diode D2 connect triode Q2's
The emitter of one end and triode Q4 of emitter and resistance R7, the other end ground connection of resistance R7, the base stage of triode Q4 connect
The emitter of triode Q3, the collector of triode Q4 and the collector of triode Q3 meet power supply+5V.
Embodiment two, on the basis of example 1, the amplifier output circuit is with transport and placing device AR2 with phase amplified signal
After export, amplified signal power, the conduction loss in thermal compensation signal that is to say as the compensation of portable surveillance radar microwave signal
Signal, the collector of the homophase input termination triode Q4 of transport and placing device AR2, anti-phase input terminating resistor R6, the electricity of transport and placing device AR2
Hinder one end of R8, the other end ground connection of resistance R6, one end of the output end of another termination transport and placing device AR2 of resistance R8, resistance R9
With the cathode of voltage-stabiliser tube D3, the plus earth of voltage-stabiliser tube D3, another termination signal output port of resistance R9.
Implement three, on the basis of example 1, the signal acquisition circuit selects the signal frequency of model SJ-ADC
Collector J1 acquires portable surveillance radar microwave signal frequency, after inductance L1 and capacitor C2 composition LC filter circuit filtering
It inputs in frequency modulation calibration circuit, filters out the clutter in signal, the power supply termination power+5V and capacitor C1 of signal frequency collector J1
One end, signal frequency collector J1 ground terminal ground connection, the other end of the output termination capacitor C1 of signal frequency collector J1
It is grounded with the other end of one end of capacitor C2, inductance L1, capacitor C2, the cathode and capacitor of another termination voltage-stabiliser tube D1 of inductance L1
One end of C3, the anode of voltage-stabiliser tube D1 connect the collector of triode Q1.
When the present invention is specifically used, a kind of portable surveillance radar, including signal acquisition circuit, frequency modulation calibration circuit and fortune
Output circuit is put, the signal acquisition circuit acquires portable surveillance radar microwave signal frequency, with inductance L1 and capacitor C2
Form after the filtering of LC filter circuit in input frequency modulation calibration circuit, frequency modulation calibration circuit with transport and placing device AR1 and resistance R1 ~
Resistance R3 and capacitor C3 ~ capacitor C5 composition FM circuit is electrical using capacitor C3, capacitor C4 charge and discharge to the processing of signal frequency modulation
Matter, when signal is high-frequency signal, capacitor C4 charges at this time, transport and placing device AR1 non-inverting input terminal signal frequency is reduced, when signal is
When low frequency signal, capacitor C3 electric discharge improves transport and placing device AR1 non-inverting input terminal signal frequency, plays the work to signal frequency calibration
With, while with transport and placing device AR1 with phase amplified signal, the conduction loss of thermal compensation signal, and use triode Q3 and triode
Q4 composition composite switch circuit filters out the abnormal signal in signal, when signal is abnormal low level signal, triode Q2 conducting,
It in feedback signal to transport and placing device AR1 non-inverting input terminal, improves frequency modulation and calibrates circuit output signal current potential, when signal is abnormal high electricity
When ordinary mail, triode Q1 is connected at this time, in feedback signal to transport and placing device AR1 inverting input terminal, plays calibration signal current potential
Effect, the last amplifier output circuit, with exporting after phase amplified signal, that is to say with transport and placing device AR2 as portable warning thunder
Up to the thermal compensation signal of microwave signal.
The above is that further detailed description of the invention, and it cannot be said that the present invention in conjunction with specific embodiment
Specific implementation is limited only to this；Belonging to the present invention and for those skilled in the technology concerned, it is being based on skill of the present invention
Under the premise of art scheme thinking, it is made expansion and operating method, data replacement, should all fall in the scope of the present invention it
It is interior.
Claims (3)
1. a kind of portable surveillance radar, including signal acquisition circuit, frequency modulation calibration circuit and amplifier output circuit, feature exist
In the signal acquisition circuit acquires portable surveillance radar microwave signal frequency, with inductance L1 and capacitor C2 composition LC filter
After wave circuit filtering in input frequency modulation calibration circuit, frequency modulation calibration circuit with transport and placing device AR1 and resistance R1 ~ resistance R3 with
And capacitor C3 ~ capacitor C5 composition FM circuit uses transport and placing device AR1 with phase amplified signal the processing of signal frequency modulation, and
The abnormal signal in signal is filtered out with triode Q3 and triode Q4 composition composite switch circuit, wherein triode Q2, three poles
Pipe Q1 feedback signal plays the output signal current potential of feedback calibration transport and placing device AR1, the last amplifier output to transport and placing device AR1
Circuit, with exporting after phase amplified signal, that is to say with transport and placing device AR2 as the thermal compensation signal of portable surveillance radar microwave signal；
The frequency modulation calibration circuit includes capacitor C3, one end of a terminating resistor R1 of capacitor C3, another termination electricity of capacitor C3
Hinder one end of R2, capacitor C4, the output end of the base stage of another termination triode Q3 of resistance R2 and transport and placing device AR1, resistance R5
The anode of one end, the base stage of triode Q2 and diode D2, one end of another termination capacitor C5 of resistance R1 and resistance R3's
The collector of the non-inverting input terminal of one end, the other end of another termination capacitor C4 of resistance R3 and transport and placing device AR1, triode Q2,
The base stage of another termination triode Q1 of capacitor C5, one end of the emitter connecting resistance R4 of triode Q1, the other end of resistance R4
The inverting input terminal of transport and placing device AR1 and the other end of resistance R5 are connect, the cathode of diode D2 connects the emitter and electricity of triode Q2
One end of R7 and the emitter of triode Q4, the other end ground connection of resistance R7 are hindered, the base stage of triode Q4 connects triode Q3's
Emitter, the collector of triode Q4 and the collector of triode Q3 meet power supply+5V.
2. a kind of portable surveillance radar as described in claim 1, which is characterized in that the amplifier output circuit includes transport and placing device
The collector of the homophase input termination triode Q4 of AR2, transport and placing device AR2, anti-phase input terminating resistor R6, the electricity of transport and placing device AR2
Hinder one end of R8, the other end ground connection of resistance R6, one end of the output end of another termination transport and placing device AR2 of resistance R8, resistance R9
With the cathode of voltage-stabiliser tube D3, the plus earth of voltage-stabiliser tube D3, another termination signal output port of resistance R9.
3. a kind of portable surveillance radar as described in claim 1, which is characterized in that the signal acquisition circuit includes model
One end of the power supply termination power+5V and capacitor C1 of the signal frequency collector J1 of SJ-ADC, signal frequency collector J1, signal
The ground terminal of frequency collection device J1 is grounded, the other end and capacitor C2, electricity of the output termination capacitor C1 of signal frequency collector J1
Feel one end of L1, the other end ground connection of capacitor C2, the cathode of another termination voltage-stabiliser tube D1 of inductance L1 and one end of capacitor C3, surely
The anode of pressure pipe D1 connects the collector of triode Q1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811498114.8A CN109283527B (en) | 2018-12-07 | 2018-12-07 | Portable warning radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811498114.8A CN109283527B (en) | 2018-12-07 | 2018-12-07 | Portable warning radar |
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| Publication Number | Publication Date |
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| CN109283527A true CN109283527A (en) | 2019-01-29 |
| CN109283527B CN109283527B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811498114.8A Active CN109283527B (en) | 2018-12-07 | 2018-12-07 | Portable warning radar |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109745635A (en) * | 2019-02-18 | 2019-05-14 | 河南中医药大学 | Ultrasonic signal processing unit |
| CN109889458A (en) * | 2019-02-28 | 2019-06-14 | 闫巧琴 | Library Applying Information Technology management system |
| CN110084073A (en) * | 2019-04-01 | 2019-08-02 | 郑州工程技术学院 | A kind of computer security risk control system |
| CN110244678A (en) * | 2019-06-27 | 2019-09-17 | 河南鑫安利消防安全评价有限公司 | A kind of industrial building fire Safety Assessment system |
| CN110658805A (en) * | 2019-09-30 | 2020-01-07 | 河南鑫安利消防安全评价有限公司 | Signal calibration circuit of industrial building fire-fighting system |
| CN111665385A (en) * | 2020-06-05 | 2020-09-15 | 河南华兴通信技术有限公司 | Communication base station safety monitoring device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109745635A (en) * | 2019-02-18 | 2019-05-14 | 河南中医药大学 | Ultrasonic signal processing unit |
| CN109889458A (en) * | 2019-02-28 | 2019-06-14 | 闫巧琴 | Library Applying Information Technology management system |
| CN110084073A (en) * | 2019-04-01 | 2019-08-02 | 郑州工程技术学院 | A kind of computer security risk control system |
| CN110244678A (en) * | 2019-06-27 | 2019-09-17 | 河南鑫安利消防安全评价有限公司 | A kind of industrial building fire Safety Assessment system |
| CN110658805A (en) * | 2019-09-30 | 2020-01-07 | 河南鑫安利消防安全评价有限公司 | Signal calibration circuit of industrial building fire-fighting system |
| CN110658805B (en) * | 2019-09-30 | 2020-12-01 | 天津市盛丹电子技术发展有限公司 | Signal calibration circuit of industrial building fire-fighting system |
| CN111665385A (en) * | 2020-06-05 | 2020-09-15 | 河南华兴通信技术有限公司 | Communication base station safety monitoring device |
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| Publication number | Publication date |
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| CN109283527B (en) | 2023-09-15 |
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