CN109379309A - Integrated digital microwave predistortion circuit - Google Patents
Integrated digital microwave predistortion circuit Download PDFInfo
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- CN109379309A CN109379309A CN201811498112.9A CN201811498112A CN109379309A CN 109379309 A CN109379309 A CN 109379309A CN 201811498112 A CN201811498112 A CN 201811498112A CN 109379309 A CN109379309 A CN 109379309A
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- signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
The invention discloses integrated digital microwave predistortion circuits, including signal acquisition circuit, correct comparison circuit and signal output apparatus, the signal acquisition circuit acquires integrated digital microwave signal frequency, with in input correction comparison circuit after inductance L1 and capacitor C2 composition LC filter circuit filtering, the correction comparison circuit uses transport and placing device AR1, transport and placing device AR2 and triode Q2, the correcting circuit of triode Q1 composition is to signal correction, filter out the abnormal signal in signal, then after comparator AR3 comparison signal in input signal output circuit, the signal output apparatus uses triode Q3, triode Q4 and voltage-stabiliser tube D4 composition voltage regulator circuit exports after further examining pressure stabilizing to signal, it being capable of real-time detection integrated digital microwave signal frequency, and it is micro- to compensate in time integrated digital Wave signal.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to integrated digital microwave predistortion circuit.
Background technique
Digital microwave is a kind of works in the digital radio transmission systems of microwave frequency band, due to the characteristic and ground of microwave transmission
The curved surface characteristic of ball, a digital micro-wave line are usually one section of one section of composition, and each section can regard a point pair as
The wireless communication system of point, however in practice, since the frequency of digital microwave is unstable, the application of digital microwave often will appear
Distorted signals situation.
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 integrated digital microwaves
Predistortion circuit, have be skillfully constructed, the characteristic of human oriented design, can real-time detection integrated digital microwave signal frequency,
And integrated digital microwave signal can be compensated in time.
Its technical solution solved is integrated digital microwave predistortion circuit, including signal acquisition circuit, correction compare
Circuit and signal output apparatus, the signal acquisition circuit acquires integrated digital microwave signal frequency, with inductance L1 and electricity
Input corrects in comparison circuit after holding C2 composition LC filter circuit filtering, and the correction comparison circuit uses transport and placing device AR1, amplifier
The correcting circuit of device AR2 and triode Q2, triode Q1 composition filters out the abnormal signal in signal, then passes through to signal correction
After comparator AR3 comparison signal in input signal output circuit, the signal output apparatus with triode Q3, triode Q4 and
Voltage-stabiliser tube D4 composition voltage regulator circuit exports after further examining pressure stabilizing to signal, that is to say as the benefit of integrated digital microwave signal
Repay signal；
The correction comparison circuit includes transport and placing device AR1, the homophase input of the homophase input termination transport and placing device AR2 of transport and placing device AR1
End, the output end of the anti-phase input termination transport and placing device AR1 of transport and placing device AR1 and one end of resistance R1, another termination electricity of resistance R1
Hinder the base stage of the one end R2 ~ resistance R5 and triode Q2, the output end and transport and placing device of another termination transport and placing device AR2 of resistance R4
The inverting input terminal of AR2, the other end ground connection of resistance R5, the anode of another terminating diode D3 of resistance R3, diode D3's
Cathode connects one end of the base stage of triode Q1, resistance R7, and the other end of resistance R7 and the collector of triode Q1 meet power supply -5V,
The emitter of triode Q1 connects the inverting input terminal of the emitter of triode Q2, one end of resistance R8 and comparator AR3, resistance
The other end of R8 is grounded, one end of the homophase input terminating resistor R6 of comparator AR3, resistance R6, the other end of resistance R2 and three
The collector of pole pipe Q2 meets power supply+5V.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1, the correcting circuit formed with transport and placing device AR1, transport and placing device AR2 and triode Q2, triode Q1 is to signal correction, amplifier
Device AR1, transport and placing device AR2 play the role of amplified signal power, with the conduction loss of thermal compensation signal, while with triode Q2,
Triode Q1 calibration signal, plays the effect of FM signal, stabilization signal frequency, when containing abnormal signal in signal, three poles
Pipe Q1, triode Q2 are not turned on, and filter out the abnormal signal in signal, and then input signal is defeated after comparator AR3 comparison signal
Out in circuit, stabilization signal quiescent point, wherein resistance R8 is divider resistance, prevents signal potential excessively high, destroys circuit, adopts
The frequency modulation pressure stabilizing of signal is realized in fashion described above.
2. after further examining pressure stabilizing to signal with triode Q3, triode Q4 and voltage-stabiliser tube D4 composition voltage regulator circuit
Output, that is to say the voltage-stabiliser tube D4 pressure stabilizing for the thermal compensation signal of integrated digital microwave signal, and triode Q3, triode Q4 are into one
Step detection signal potential, prevents thermal compensation signal excessive, and when signal is abnormal high level signal, triode Q4 is connected at this time, will
Abnormal high level signal is released to the further verification for greatly, realizing signal.
Detailed description of the invention
Fig. 1 is the module map of integrated digital microwave predistortion circuit of the present invention.
Fig. 2 is the schematic diagram of integrated digital microwave predistortion circuit 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, integrated digital microwave predistortion circuit, including signal acquisition circuit, correction comparison circuit and signal
Output circuit, the signal acquisition circuit acquire integrated digital microwave signal frequency, form LC with inductance L1 and capacitor C2
After filter circuit filtering in input correction comparison circuit, the correction comparison circuit uses transport and placing device AR1, transport and placing device AR2 and three
The correcting circuit of pole pipe Q2, triode Q1 composition filters out the abnormal signal in signal, then through comparator AR3 to signal correction
After comparison signal in input signal output circuit, the signal output apparatus uses triode Q3, triode Q4 and voltage-stabiliser tube D4
Composition voltage regulator circuit exports after further examining pressure stabilizing to signal, that is to say as the thermal compensation signal of integrated digital microwave signal；
The correcting circuit that the correction comparison circuit is formed with transport and placing device AR1, transport and placing device AR2 and triode Q2, triode Q1
To signal correction, transport and placing device AR1, transport and placing device AR2 play the role of amplified signal power, with the conduction loss of thermal compensation signal, together
Shi Yunyong triode Q2, triode Q1 calibration signal, play the effect of FM signal, stabilization signal frequency, when containing in signal
When abnormal signal, triode Q1, triode Q2 are not turned on, and filter out the abnormal signal in signal, then compare letter through comparator AR3
After number in input signal output circuit, stabilization signal quiescent point, wherein resistance R8 is divider resistance, prevents signal potential mistake
Height destroys circuit, the non-inverting input terminal of the homophase input termination transport and placing device AR2 of transport and placing device AR1, the anti-phase input of transport and placing device AR1
Terminate the output end of transport and placing device AR1 and one end of resistance R1, one end and three poles of another terminating resistor R2 ~ resistance R5 of resistance R1
The base stage of pipe Q2, the output end of another termination transport and placing device AR2 of resistance R4 and the inverting input terminal of transport and placing device AR2, resistance R5's
Other end ground connection, the anode of another terminating diode D3 of resistance R3, the cathode of diode D3 connect the base stage of triode Q1, resistance
One end of R7, the other end of resistance R7 and the collector of triode Q1 meet power supply -5V, and the emitter of triode Q1 meets triode Q2
Emitter, one end of resistance R8 and the inverting input terminal of comparator AR3, resistance R8 the other end ground connection, comparator AR3's
One end of homophase input terminating resistor R6, the collector of resistance R6, the other end of resistance R2 and triode Q2 meet power supply+5V.
Embodiment two, on the basis of example 1, the signal output apparatus is with triode Q3, triode Q4 and surely
Pressure pipe D4 composition voltage regulator circuit exports after further examining pressure stabilizing to signal, that is to say as the compensation of integrated digital microwave signal
Signal, voltage-stabiliser tube D4 pressure stabilizing, triode Q3, triode Q4 further detect signal potential, prevent thermal compensation signal excessive, work as signal
When for abnormal high level signal, triode Q4 is connected at this time, by abnormal high level signal release to greatly, realize signal into
The verification of one step,
One end of the collector connecting resistance R9 of triode Q3, the emitter of triode Q3 connect the base stage and voltage-stabiliser tube D4 of triode Q4
Cathode, triode Q4 emitter ground connection, the plus earth of voltage-stabiliser tube D4, another termination power+5V of resistance R9, triode
The base stage of Q3 connects the collector of triode Q4 and one end of resistance R10 and the output end of comparator AR3, and resistance R10's is another
Termination signal output port.
Implement three, on the basis of example 1, the signal acquisition circuit selects the signal frequency of model SJ-ADC
Collector J1 acquires integrated digital microwave signal frequency, inputs after filtering with inductance L1 and capacitor C2 composition LC filter circuit
It corrects in comparison circuit, filters out the clutter in signal, the one of the power supply termination power+5V and capacitor C1 of signal frequency collector J1
End, the ground terminal ground connection of signal frequency collector J1, the other end and electricity of the output termination capacitor C1 of signal frequency collector J1
Hold one end of C2, inductance L1, the other end ground connection of capacitor C2, the cathode and diode D2 of another termination voltage-stabiliser tube D1 of inductance L1
Anode, the plus earth of voltage-stabiliser tube D1, the cathode of diode D2 connects the non-inverting input terminal of transport and placing device AR1.
The present invention it is specifically used when, integrated digital microwave predistortion circuit, including signal acquisition circuit, correction it is more electric
Road and signal output apparatus, the signal acquisition circuit acquires integrated digital microwave signal frequency, with inductance L1 and capacitor
Input corrects in comparison circuit after C2 forms the filtering of LC filter circuit, and the correction comparison circuit uses transport and placing device AR1, transport and placing device
For the correcting circuit of AR2 and triode Q2, triode Q1 composition to signal correction, transport and placing device AR1, transport and placing device AR2 play amplification letter
The effect of number power with the conduction loss of thermal compensation signal, while using triode Q2, triode Q1 calibration signal, plays frequency modulation
The effect of signal, stabilization signal frequency, when containing abnormal signal in signal, triode Q1, triode Q2 are not turned on, and filter out letter
Abnormal signal in number, then after comparator AR3 comparison signal in input signal output circuit, stabilization signal quiescent operation
Point, wherein resistance R8 is divider resistance, prevents signal potential excessively high, destroys circuit, and the signal output apparatus uses triode
Q3, triode Q4 and voltage-stabiliser tube D4 composition voltage regulator circuit export after further examining pressure stabilizing to signal, that is to say as integrated number
The thermal compensation signal of word 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. integrated digital microwave predistortion circuit, including signal acquisition circuit, correction comparison circuit and signal output apparatus,
It is characterized in that, the signal acquisition circuit acquires integrated digital microwave signal frequency, forms LC with inductance L1 and capacitor C2
After filter circuit filtering in input correction comparison circuit, the correction comparison circuit uses transport and placing device AR1, transport and placing device AR2 and three
The correcting circuit of pole pipe Q2, triode Q1 composition filters out the abnormal signal in signal, then through comparator AR3 to signal correction
After comparison signal in input signal output circuit, the signal output apparatus uses triode Q3, triode Q4 and voltage-stabiliser tube D4
Composition voltage regulator circuit exports after further examining pressure stabilizing to signal, that is to say as the thermal compensation signal of integrated digital microwave signal；
The correction comparison circuit includes transport and placing device AR1, the homophase input of the homophase input termination transport and placing device AR2 of transport and placing device AR1
End, the output end of the anti-phase input termination transport and placing device AR1 of transport and placing device AR1 and one end of resistance R1, another termination electricity of resistance R1
Hinder the base stage of the one end R2 ~ resistance R5 and triode Q2, the output end and transport and placing device of another termination transport and placing device AR2 of resistance R4
The inverting input terminal of AR2, the other end ground connection of resistance R5, the anode of another terminating diode D3 of resistance R3, diode D3's
Cathode connects one end of the base stage of triode Q1, resistance R7, and the other end of resistance R7 and the collector of triode Q1 meet power supply -5V,
The emitter of triode Q1 connects the inverting input terminal of the emitter of triode Q2, one end of resistance R8 and comparator AR3, resistance
The other end of R8 is grounded, one end of the homophase input terminating resistor R6 of comparator AR3, resistance R6, the other end of resistance R2 and three
The collector of pole pipe Q2 meets power supply+5V.
2. integrated digital microwave predistortion circuit as described in claim 1, which is characterized in that the signal output apparatus includes
One end of the collector connecting resistance R9 of triode Q3, triode Q3, the emitter of triode Q3 connect the base stage of triode Q4 and steady
The cathode of pressure pipe D4, the emitter ground connection of triode Q4, the plus earth of voltage-stabiliser tube D4, another termination power+5V of resistance R9,
The base stage of triode Q3 meets the collector of triode Q4 and one end of resistance R10 and the output end of comparator AR3, resistance R10
Another termination signal output port.
3. integrated digital microwave predistortion circuit as described in claim 1, which is characterized in that the signal acquisition circuit includes
The one of the power supply termination power+5V and capacitor C1 of the signal frequency collector J1 of model SJ-ADC, signal frequency collector J1
End, the ground terminal ground connection of signal frequency collector J1, the other end and electricity of the output termination capacitor C1 of signal frequency collector J1
Hold one end of C2, inductance L1, the other end ground connection of capacitor C2, the cathode and diode D2 of another termination voltage-stabiliser tube D1 of inductance L1
Anode, the plus earth of voltage-stabiliser tube D1, the cathode of diode D2 connects the non-inverting input terminal of transport and placing device AR1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811498112.9A CN109379309B (en) | 2018-12-07 | 2018-12-07 | Integrated digital microwave predistortion circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811498112.9A CN109379309B (en) | 2018-12-07 | 2018-12-07 | Integrated digital microwave predistortion circuit |
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| CN109379309A true CN109379309A (en) | 2019-02-22 |
| CN109379309B CN109379309B (en) | 2023-07-07 |
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| CN201811498112.9A Active CN109379309B (en) | 2018-12-07 | 2018-12-07 | Integrated digital microwave predistortion circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849681A (en) * | 2019-03-30 | 2019-06-07 | 郝蕾 | The torque signal compensation circuit of the four-wheel drive system of electric car |
| CN111384903A (en) * | 2020-04-14 | 2020-07-07 | 河南华兴通信技术有限公司 | Digital microwave signal regulating circuit |
| CN111510176A (en) * | 2020-04-23 | 2020-08-07 | 河南华兴通信技术有限公司 | Digital microwave control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849681A (en) * | 2019-03-30 | 2019-06-07 | 郝蕾 | The torque signal compensation circuit of the four-wheel drive system of electric car |
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| CN109379309B (en) | 2023-07-07 |
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