CN110515074A - A kind of Light deformation telemetry system and method based on wireless synchronization technology - Google Patents
A kind of Light deformation telemetry system and method based on wireless synchronization technology Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 claims abstract description 80
- 238000006073 displacement reaction Methods 0.000 claims abstract description 29
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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
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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
- 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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Abstract
The present invention relates to a kind of Light deformation telemetry system and method based on wireless synchronization technology, which is made of multiple monitoring points and survey station point.Monitoring point is made of band spectrum modulation frequency multiplication repeat circuit and wireless synchronization pulse receiving circuit；Survey station point is displaced resolving circuit by spread spectrum demodulation and wireless synchronization impulse ejection circuit is constituted.Survey station point generates and sends radio-frequency carrier signal and wireless synchronization pulse signal to monitoring point；Monitoring point receives radio-frequency carrier signal and carries out process of frequency multiplication, extracts wireless synchronization pulse signal, generates monitoring point pseudo-code and carries out band spectrum modulation to the radio-frequency carrier signal after frequency multiplication, emits to survey station point；Survey station point uses the radio-frequency carrier signal of two frequencys multiplication to carry out quadrature frequency conversion to echo-signal as local oscillation signal, and under the control of the synchronization pulse of wireless synchronization impulse ejection circuit output, monitoring point pseudo-code signal is regenerated using the second pseudo- code generation circuit, coherently despreading is carried out to baseband signal, and calculates the displacement of each monitoring point.
Description
Technical field
The invention belongs to building Light deformation field of measuring technique, are related to a kind of being slightly variable based on wireless synchronization technology
Shape telemetry system and method.
Background technique
The heavy constructions such as shaft tower, high building, bridge, dam can deform in use, and deformation measurement is to explore texturing machine
The basic skills of reason is the important means of danger early warning.Patent CN101349753A proposes a kind of deformation of building
Telemetry, entire measuring system are made of the telemetering receiver of the multiple Radio Beacons and distal end that are mounted on measured object, base
This working principle are as follows: Radio Beacon is using different pseudo-code modulation and co-frequencies with the carrier signal of phase, and Radio Beacon is to telemetering receiver spoke
Radiofrequency signal is penetrated, telemetering receiver receives the hybrid spread spectrum modulated signal that Radio Beacon is sent and isolates after reaching PN synchronization
The carrier signal of each Radio Beacon carries out phase demodulation to carrier signal, can detect the deflection of building.This method is in reality
The problem of use has: (1) each Radio Beacon will use public local oscillation signal, need to be connected with each other using cable；In addition it needs
Reference beacon machine to be installed in the datum mark far from deformed region, it is inconvenient to use；(2) telemetering receiver circuit is complicated, pseudo-code
Circuit operational failure when losing lock can not measure each observation point displacement.
Therefore, it is badly in need of a kind of efficiently accurate building Light deformation measuring technique, at present to realize to all kinds of buildings
The Light deformation situation of object measures.
Summary of the invention
In view of this, the present invention proposes a kind of Light deformation telemetry system and method based on wireless synchronization technology, the measurement
System and measurement method be capable of precise and high efficiency to building Light deformation carry out real-time monitoring, can effectively solve and deposit in the prior art
Monitoring accuracy it is not high, the problems such as the device is complicated.
Specifically, including following technical solution:
A kind of Light deformation telemetry system based on wireless synchronization technology, the system is by multiple monitorings for being mounted on measured object
Point (1) and the survey station point (2) of distal end are constituted；
The monitoring point (1) is by band spectrum modulation frequency multiplication repeat circuit (11) and wireless synchronization pulse receiving circuit (12) structure
At；The survey station point (2) is made of spread spectrum demodulation displacement resolving circuit (21) and wireless synchronization impulse ejection circuit (22)；
The survey station point (2) generates RF local oscillator signal, frequency fR1, as radio-frequency carrier signal, and to monitoring point
(1) emit；Survey station point (2) sends wireless synchronization pulse signal to monitoring point (1) using wireless synchronization impulse ejection circuit (22)；
The radio-frequency carrier signal received is carried out process of frequency multiplication by monitoring point (1), the carrier signal after obtaining relevant frequency conversion, and frequency is
fR2=2fR1；Wireless synchronization pulse receiving circuit (12) extracts the first synchronization pulse (1109), believes in this lock-out pulse
Number control under, generate the pseudo-code signal of mark monitoring point using the first pseudo- code generation circuit (1108), and believe using this pseudo-code
Number to after relevant frequency conversion carrier signal carry out band spectrum modulation, then to survey station point (2) emit；Survey station point (2) receives monitoring point
(1) frequency is f by the echo-signal emittedR1Local RF local oscillator signal carry out process of frequency multiplication, obtain frequency be fR2=2fR1
RF local oscillator signal, the echo-signal from monitoring point (1) that survey station point (2) is received using this RF local oscillator signal into
Row quadrature frequency conversion, is transformed to baseband signal；Survey station point (2) is synchronous using wireless synchronization impulse ejection circuit (22) output second
Pulse signal (2212) regenerates monitoring point using the second pseudo- code generation circuit (2110) under the control of this synchronization pulse
Then pseudo-code signal carries out coherently despreading to the baseband signal that quadrature down converter obtains, be sent to displacement counting circuit
(21) displacement of monitoring point is calculated.
Further, the band spectrum modulation frequency multiplication repeat circuit (11) is filtered by the first dual-band antenna (1101), the first band logical
Wave device (1102), the first low-noise amplifier (1103), the first frequency multiplier (1104), frequency mixer (1105), the second bandpass filtering
The pseudo- code generation circuit (1108) of device (1106), the second power amplifier (1107) and first is constituted；First pseudo- code generation circuit
(1108) it is controlled by the first synchronization pulse (1109)；
Wherein: the first dual-band antenna (1101) and the first bandpass filter (1102), the first low-noise amplifier (1103),
First frequency multiplier (1104), frequency mixer (1105) are sequentially connected, and signal enters after the first bandpass filter (1102) filter
First low-noise amplifier (1103), and frequency mixer (1105) are admitted to after the first frequency multiplier (1104), in frequency mixer
(1105) pseudo-code generated in the first pseudo- code generation circuit (1108) is output to the second bandpass filter (1106) after being mixed, and
It is sent after the second power amplifier (1107) amplification.
Further, spread spectrum demodulation displacement resolving circuit (21) is put by the second dual-band antenna (2101), third power
Big device (2102), third bandpass filter (2103), RF local oscillator source (2104), the second frequency multiplier (2105), the filter of the 4th band logical
Wave device (2106), the 4th low-noise amplifier (2107), quadrature down converter (2108), coherently despreading circuit (2109), second
PN code generation circuit (2110) and displacement calculation circuit (2111) are constituted, and the second pseudo- code generation circuit (2110) is same by second
The control of step pulse signal 2112；
Wherein: RF local oscillator source (2104) and third bandpass filter 2103, third power amplifier 2102, the second double frequency
Antenna (2101) is sequentially connected, and the radio-frequency carrier signal that RF local oscillator source (2104) generate passes through second pair after being filtered, being amplified
Frequency antenna (2101) is radiate；Second dual-band antenna (2101) and the 4th bandpass filter (2106), the 4th low noise amplification
Device (2107), quadrature down converter (2108) are sequentially connected, and the echo-signal that the second dual-band antenna (2101) receives is through filtering
Quadrature down converter (2108) are admitted to after wave and amplification；The radio-frequency carrier that RF local oscillator source (2104) generates passes through the second frequency multiplication
Device (2105) is sent into quadrature down converter (2108) afterwards, obtains baseband signal, is sent to coherently despreading circuit (2109), the second pseudo-code
Generative circuit (2110) is sent to coherently despreading circuit (2109), coherently despreading circuit in locally-regenerated monitoring point pseudo-code signal
(2109) after carrying out coherently despreading processing to baseband signal, input displacement amount counting circuit (2111).
Further, the wireless synchronization pulse receiving circuit (12) is by receiving antenna (1201), power splitter (1202),
Five bandpass filters (1203), the 5th low-noise amplifier (1204), the first envelope detector (1205), the 6th bandpass filter
(1206), the 6th low-noise amplifier (1207), the second envelope detector (1208), comparator (1209), advanced matched filtering
Device (1210), output matched filter (1211), lag matched filter (1212), lock-out pulse decision circuit (1213), the
One delay circuit (1214) is constituted；Delay circuit (1204) sends out the first synchronization pulse (1109)；
Wherein: after receiving antenna (1201) receives signal, signal enters power splitter (1202), and signal is divided into two-way,
Pass through the 5th bandpass filter (1203), the 5th low-noise amplifier (1204), the first envelope detector (1205) respectively all the way,
Another way passes through the 6th bandpass filter (1206), the 6th low-noise amplifier (1207), the second envelope detector respectively
(1208), two paths of signals enters comparator (1209), and the signal exported from comparator (1209) passes through advanced matched filtering respectively
Device (1210), output matched filter (1211), lag matched filter (1212) enter lock-out pulse decision circuit afterwards
(1213), lock-out pulse decision circuit (1213) output signal enters the first delay circuit (1214).
Further, the wireless synchronization impulse ejection circuit (22) is by transmitting antenna (2201), combiner (2202),
One switch (2203), third puppet code generation circuit (2205), negates circuit (2206), second at first carrier generator (2204)
Switch (2207), the second carrier generator (2208), lock-out pulse generative circuit (2209), the second delay circuit (2210) structure
At；Second delay circuit (2210) exports the second synchronization pulse (2212)；
Wherein: first carrier generator (2204) is connected with first switch (2203), the second carrier generator (2208) with
Second switch (2207) is connected；Lock-out pulse generative circuit (2209) is raw with the second delay circuit (2210) and third pseudo-code respectively
It is connected at circuit (2205)；Third puppet code generation circuit (2205) is connected with first switch (2203), and by negating circuit
(2206) it is connected with second switch (2207)；First switch (2203) and second switch (2207) respectively with combiner (2202) phase
Even, signal is sent out by transmitting antenna (2201) afterwards eventually by combiner (2202).
Further, the pseudo-code is m-sequence or Gold code.
The present invention also provides a kind of Light deformation method of telemetering based on wireless synchronization technology, this method includes following step
It is rapid:
S1: survey station point (2) generates RF local oscillator signal, frequency fR1, as radio-frequency carrier signal, and to monitoring point
(1) emit；
S2: survey station point (2) sends wireless synchronization pulse signal to monitoring point using wireless synchronization impulse ejection circuit (22)；
S3: the radio-frequency carrier signal received is carried out process of frequency multiplication by monitoring point (1), the carrier wave letter after obtaining relevant frequency conversion
Number, frequency fR2=2fR1；
S4: wireless synchronization pulse receiving circuit (12) extracts the first synchronization pulse (1109), and synchronizes arteries and veins herein
It rushes under the control of signal, generates the pseudo-code signal of mark monitoring point, and believe the carrier wave after relevant frequency conversion using this pseudo-code signal
Number carry out band spectrum modulation, then to survey station point (2) emit；
S5: survey station point (2) receives the echo-signal of monitoring point (1) transmitting, is f by frequencyR1Local RF local oscillator signal
Process of frequency multiplication is carried out, obtaining frequency is fR2=2fR1RF local oscillator signal, using this RF local oscillator signal to survey station point (2) receive
The echo-signal from monitoring point (1) arrived carries out quadrature frequency conversion, is transformed to baseband signal；
S6: survey station point (2) is controlled using the second synchronization pulse (2212) of wireless synchronization impulse ejection circuit output
Second pseudo- code generation circuit regenerates monitoring point pseudo-code signal, then carries out related solution to the baseband signal that quadrature down converter obtains
Expand, is sent to the displacement that displacement counting circuit (21) calculates monitoring point.
Further, in step s 4, wireless synchronization pulse receiving circuit (12) is by receiving antenna (1201), power splitter
(1202), the 5th bandpass filter (1203), the 5th low-noise amplifier (1204), the first envelope detector (1205), the 6th
Bandpass filter (1206), the second envelope detector (1208), comparator (1209), surpasses the 6th low-noise amplifier (1207)
Preceding matched filter (1210), output matched filter (1211), lag matched filter (1212), lock-out pulse decision circuit
(1213), the first delay circuit (1214) is constituted；Delay circuit (1204) sends out the first synchronization pulse (1109)；Receive day
After line (1201) receives signal, signal enters power splitter (1202), and signal is divided into after two-way all the way respectively by the 5th band
Bandpass filter (1203), the 5th low-noise amplifier (1204), the first envelope detector (1205), another way pass through the 6th respectively
Bandpass filter (1206), the 6th low-noise amplifier (1207), the second envelope detector (1208), two paths of signals, which enters, to be compared
Device (1209), the signal exported from comparator (1209) pass through advanced matched filter (1210), output matched filter respectively
(1211), lag matched filter (1212) enters lock-out pulse decision circuit (1213) afterwards, lock-out pulse decision circuit
(1213) output signal enters the first delay circuit (1214).
The beneficial effects of the present invention are: (1) each monitoring point be independent active repeat circuit, between monitoring point, monitoring
It is connected between point and survey station point without cable, without installing monitoring dot circuit in datum mark, improves the flexibility of system；(2)
Monitoring point and survey station point use synchronization pulse to realize that PN synchronization improves system without the pseudo-code tracing loop of closed loop
Reliability；(3) monitoring point and survey station point are all made of alien frequencies transmit-receive technology, efficiently solve continuous wave radar hair receipts crosstalk and ask
Topic, so that system be made to have the advantages that far measuring distance.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is measuring system schematic diagram of the invention；
Fig. 2 is band spectrum modulation frequency multiplication repeat circuit structural block diagram of the invention；
Fig. 3 is that spread spectrum demodulation displacement of the invention resolves circuit structure block diagram；
Fig. 4 is wireless synchronization pulse receiving circuit structural block diagram of the invention；
Fig. 5 is wireless synchronization impulse ejection circuit structure block diagram of the invention.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
The present invention provides a kind of Light deformation telemetry system based on wireless synchronization technology, by multiple monitoring points 1 and survey station point 2
It constitutes.Monitoring point 1 is made of band spectrum modulation frequency multiplication repeat circuit 11 with wireless synchronization pulse receiving circuit 12；Survey station point 2 is by expanding
Frequency demodulation displacement resolving circuit 21 and wireless synchronization impulse ejection circuit 22 are constituted.Survey station point 2 is generated and is sent to monitoring point 1 and penetrates
Frequency carrier signal and wireless synchronization pulse signal；Monitoring point 1 receives radio-frequency carrier signal and carries out process of frequency multiplication, extracts wireless
Synchronization pulse generates monitoring point pseudo-code and carries out band spectrum modulation to the radio-frequency carrier signal after frequency multiplication, sends out to survey station point 2
It penetrates；Survey station point 2 uses the radio-frequency carrier signal of two frequencys multiplication to carry out quadrature frequency conversion to echo-signal as local oscillation signal, and in nothing
The synchronization pulse control that line synchronizing pulse transmit circuit 22 exports is lower to regenerate monitoring point pseudo-code, carries out to baseband signal related
Despreading, and calculate the displacement of each monitoring point.
Fig. 1 is measuring system schematic diagram of the invention, as shown, provided by the invention based on the micro- of wireless synchronization technology
Telemetry system is deformed, measuring system is made of the survey station point 2 of the multiple monitoring points 1 and distal end that are mounted on measured object.Monitoring point 1
It is made of band spectrum modulation frequency multiplication repeat circuit 11 with wireless synchronization pulse receiving circuit 12；Survey station point 2 is by spread spectrum demodulation displacement solution
It calculates circuit 21 and wireless synchronization impulse ejection circuit 22 is constituted.Survey station point 2 generates RF local oscillator signal, frequency fR1, as
Radio-frequency carrier signal, and emit to monitoring point 1；Survey station point 2 sends nothing to monitoring point using wireless synchronization impulse ejection circuit 22
Line synchronizing pulse signal；The radio-frequency carrier signal received is carried out process of frequency multiplication by monitoring point 1, the carrier wave after obtaining relevant frequency conversion
Signal, frequency fR2=2fR1；Wireless synchronization pulse receiving circuit 12 extracts synchronization pulse, and in this lock-out pulse
Under the control of signal, the pseudo-code signal of mark monitoring point is generated, and using this pseudo-code signal to the carrier signal after relevant frequency conversion
Band spectrum modulation is carried out, is then emitted to survey station point 2；Survey station point 2 receives the echo-signal that monitoring point 1 emits, and is f by frequencyR1's
Local RF local oscillator signal carries out process of frequency multiplication, and obtaining frequency is fR2=2fR1RF local oscillator signal, use this RF local oscillator
Signal carries out quadrature frequency conversion to the echo-signal from monitoring point 1 that survey station point 2 receives, and is transformed to baseband signal；Survey station
Point 2 is controlled local the second pseudo-code of monitoring point and is generated electricity using the synchronization pulse of wireless synchronization impulse ejection circuit output
Road regenerates monitoring point pseudo-code, then carries out coherently despreading to the baseband signal that quadrature down converter obtains, is sent to displacement meter
Calculate the displacement that circuit 21 calculates monitoring point.
Fig. 2 is band spectrum modulation frequency multiplication repeat circuit structural block diagram of the invention, as shown, band spectrum modulation frequency multiplication forwarding electricity
Road 11 is by the first dual-band antenna 1101, the first bandpass filter 1102, the first low-noise amplifier 1103, the first frequency multiplier
1104, frequency mixer 1105, the second bandpass filter 1106, the second power amplifier 1107 and the first pseudo- code generation circuit 1108
It constitutes；First pseudo- code generation circuit 1108 is controlled by the first synchronization pulse 1109.
Fig. 3 is that spread spectrum demodulation displacement of the invention resolves circuit structure block diagram, as shown, spread spectrum demodulation displacement resolves electricity
Road 21 by the second dual-band antenna 2101, third power amplifier 2102, third bandpass filter 2103, RF local oscillator source 2104,
Second frequency multiplier 2105, the 4th bandpass filter 2106, the 4th low-noise amplifier 2107, quadrature down converter 2108, correlation
De-spreading circuit 2109, the 2nd PN code generation circuit 2110 and displacement calculation circuit 2111 are constituted, the second pseudo- code generation circuit
2110 by the second synchronization pulse 2112 control.
Fig. 4 is wireless synchronization pulse receiving circuit structural block diagram of the invention, as shown, wireless synchronization pulse receives electricity
It is wrapped by receiving antenna 1201, power splitter 1202, the 5th bandpass filter 1203, the 5th low-noise amplifier 1204, first on road 12
Network wave detector 1205, the 6th low-noise amplifier 1207, the second envelope detector 1208, compares the 6th bandpass filter 1206
Device 1209, advanced matched filter 1210, output matched filter 1211, lag matched filter 1212, lock-out pulse judgement
Circuit 1213, the first delay circuit 1214 are constituted, and the first delay circuit 1214 sends out the first lock-out pulse 1109.Wireless synchronization arteries and veins
Punching, which receives circuit 12, also can receive telecommand data, such as turn on or off monitoring point, and the transmission power of monitoring point is arranged,
And first delay circuit 1214 delay time etc..
Fig. 5 is wireless synchronization impulse ejection circuit structure block diagram of the invention, as shown, wireless synchronization impulse ejection electricity
Road 22 generates electricity by transmitting antenna 2201, combiner 2202, first switch 2203, first carrier generator 2204, third pseudo-code
Road 2205 negates circuit 2206, second switch 2207, the second carrier generator 2208, lock-out pulse generative circuit 2209, second
Delay circuit 1210 is constituted；Second delay circuit 1210 sends out the second synchronization pulse 2212.Wireless synchronization impulse ejection electricity
Telecommand data also can be transmitted in road 22, such as turns on or off monitoring point, and the transmission power and first of monitoring point is arranged
The delay time of delay circuit 1214.
Assuming that i-th of monitoring point 1 and survey station point the distance between 2 are Ri, i=1,2 ..., n；Assuming that maximum distance is
Rmax, then 2208 delay time of the second delay circuit should be arranged are as follows: τ2=(Rmax/ c), wherein c be propagation velocity of electromagnetic wave, first
1214 delay time of delay circuit should be arranged are as follows:If between each monitoring point 1 and survey station point 2
Be closer, then the delay time of the two delay circuits is approximately 0, can save the two delay circuits.
Assuming that pseudo- bit rate is fpn, chip width is Tpn=(1/fpn), code length M, PN-code capture T1=(MTpn)；It is false
If the clock frequency of the first, second, third pseudo- code generation circuit is fs=(Kfpn), K is over-sampling multiple, lock-out pulse
Width be TPsynC=(Tpn/ K), the repetition period of lock-out pulse is T2=(MTpn), it is identical as PN-code capture T1.
Assuming that the first carrier signal frequency that first carrier generator 2204 generates is fc1, bandwidth B, the generation of the second carrier wave
The second frequency of carrier signal that device 2208 generates is fc2, bandwidth B, the difference of the two carrier frequencies is Δ fc=| fc1-fc2|,
Δfc> > B, B > > fpn。
Assuming that the data-signal that third puppet code generation circuit 2205 generates is pseudo-code PN0, the output signal of comparator 1209
For Y0, then Y0For the pseudo-code PN0 that third puppet code generation circuit 2205 generates, that is, demodulate the transmission of wireless synchronization impulse ejection circuit
Data-signal；The coefficient of advanced matched filter 1210, the coefficient for exporting matched filter 1211, lag matched filter
1212 tap coefficient is the opposite sequence of pseudo-code PN0, and lead-lag half-chip width is Δ T=(Tpn/2)；Assuming that advanced
The output signal of matched filter 1210 is Y1, the output signal of output matched filter 1211 is Y2, lag matched filter
1212 output signal is Y3, when meeting following condition: Y2> (M+1)/2, and (Y1-Y3) < < 2k (M+1)/K, k ∈
(1,2)；1213 output pulse signal of lock-out pulse decision circuit gives the first delay circuit 1214 and generates the first lock-out pulse letter
Numbers 1109.Pass through the joint of wireless synchronization impulse ejection circuit described in wireless synchronization pulse receiving circuit described in Fig. 4 and Fig. 5
It uses, can realize that the remote impulse of accurate (or high-precision) is synchronous between monitoring point, between monitoring point and survey station point, and
Circuit reliable working performance.
Displacement calculation circuit 2111 carries out seeking phase angle to the baseband signal of i-th of the monitoring point 1 obtained after coherently despreading
Operation finds out the phase difference of round-trip electromagnetic wave signal, φi=2 π (2fR1·2Ri)/c；Then again by calculating phase differencei
Variation delta φiTo calculate displacement Δ Ri=Δ φi/(8π)λR1。λR1=c/fR1The radio-frequency carrier letter emitted for survey station point 2
Number wavelength.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention rather than limits, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (8)
1. a kind of Light deformation telemetry system based on wireless synchronization technology, it is characterised in that: the system is by being mounted on measured object
Multiple monitoring points (1) and distal end survey station point (2) constitute；
The monitoring point (1) is made of band spectrum modulation frequency multiplication repeat circuit (11) and wireless synchronization pulse receiving circuit (12)；Institute
Survey station point (2) is stated to be made of spread spectrum demodulation displacement resolving circuit (21) and wireless synchronization impulse ejection circuit (22)；
The survey station point (2) generates RF local oscillator signal, frequency fR1, sent out as radio-frequency carrier signal, and to monitoring point (1)
It penetrates；Survey station point (2) sends wireless synchronization pulse signal to monitoring point (1) using wireless synchronization impulse ejection circuit (22)；Monitoring
The radio-frequency carrier signal received is carried out process of frequency multiplication by point (1), the carrier signal after obtaining relevant frequency conversion, frequency fR2=
2fR1；Wireless synchronization pulse receiving circuit (12) extracts the first synchronization pulse (1109), in the control of this synchronization pulse
Under system, the pseudo-code signal of mark monitoring point is generated using the first pseudo- code generation circuit (1108), and using this pseudo-code signal to phase
Carrier signal after dry frequency conversion carries out band spectrum modulation, then emits to survey station point (2)；Survey station point (2) receives monitoring point (1) transmitting
Echo-signal, by frequency be fR1Local RF local oscillator signal carry out process of frequency multiplication, obtain frequency be fR2=2fR1Radio frequency
Local oscillation signal carries out the echo-signal from monitoring point (1) that survey station point (2) receives using this RF local oscillator signal orthogonal
Down coversion is transformed to baseband signal；Survey station point (2), which exports the second lock-out pulse using wireless synchronization impulse ejection circuit (22), to be believed
Number (2212) use the second pseudo- code generation circuit (2110) to regenerate monitoring point pseudo-code letter under the control of this synchronization pulse
Number, coherently despreading then is carried out to the baseband signal that quadrature down converter obtains, displacement counting circuit (21) is sent to and calculates
The displacement of monitoring point.
2. a kind of Light deformation telemetry system based on wireless synchronization technology according to claim 1, it is characterised in that: described
Band spectrum modulation frequency multiplication repeat circuit (11) by the first dual-band antenna (1101), the first bandpass filter (1102), the first low noise
Acoustic amplifier (1103), the first frequency multiplier (1104), frequency mixer (1105), the second bandpass filter (1106), the second power are put
Big device (1107) and the first pseudo- code generation circuit (1108) are constituted；First pseudo- code generation circuit (1108) is by the first lock-out pulse
Signal (1109) control；
Wherein: the first dual-band antenna (1101) and the first bandpass filter (1102), the first low-noise amplifier (1103), first
Frequency multiplier (1104), frequency mixer (1105) are sequentially connected, and signal enters first after the first bandpass filter (1102) filter
Low-noise amplifier (1103), and frequency mixer (1105) are admitted to after the first frequency multiplier (1104), in frequency mixer (1105)
In be mixed with the pseudo-code that the first pseudo- code generation circuit (1108) generates after be output to the second bandpass filter (1106), and pass through the
It is sent after two power amplifiers (1107) amplification.
3. a kind of Light deformation telemetry system based on wireless synchronization technology according to claim 1, it is characterised in that: described
Spread spectrum demodulation displacement resolving circuit (21) by the second dual-band antenna (2101), third power amplifier (2102), third band logical
Filter (2103), RF local oscillator source (2104), the second frequency multiplier (2105), the 4th bandpass filter (2106), the 4th low noise
Acoustic amplifier (2107), quadrature down converter (2108), coherently despreading circuit (2109), the 2nd PN code generation circuit (2110) with
And displacement calculation circuit (2111) is constituted, control of the second pseudo- code generation circuit (2110) by the second synchronization pulse 2112
System；
Wherein: RF local oscillator source (2104) and third bandpass filter 2103, third power amplifier 2102, the second dual-band antenna
(2101) it is sequentially connected, the radio-frequency carrier signal that RF local oscillator source (2104) generate passes through the second double frequency day after being filtered, being amplified
Line (2101) is radiate；Second dual-band antenna (2101) and the 4th bandpass filter (2106), the 4th low-noise amplifier
(2107), quadrature down converter (2108) is sequentially connected, and the echo-signal that the second dual-band antenna (2101) receives is by filtering
With quadrature down converter (2108) are admitted to after amplification；The radio-frequency carrier that RF local oscillator source (2104) generates passes through the second frequency multiplier
(2105) quadrature down converter (2108) are sent into afterwards, obtain baseband signal, is sent to coherently despreading circuit (2109), the second pseudo-code is raw
At circuit (2110) in locally-regenerated monitoring point pseudo-code signal, it is sent to coherently despreading circuit (2109), coherently despreading circuit
(2109) after carrying out coherently despreading processing to baseband signal, input displacement amount counting circuit (2111).
4. a kind of Light deformation telemetry system based on wireless synchronization technology according to claim 1, it is characterised in that: described
Wireless synchronization pulse receiving circuit (12) by receiving antenna (1201), power splitter (1202), the 5th bandpass filter (1203),
5th low-noise amplifier (1204), the first envelope detector (1205), the 6th bandpass filter (1206), the 6th low noise are put
Big device (1207), the second envelope detector (1208), comparator (1209), advanced matched filter (1210), output matching filter
Wave device (1211), lag matched filter (1212), lock-out pulse decision circuit (1213), the first delay circuit (1214) structure
At；Delay circuit (1204) sends out the first synchronization pulse (1109)；
Wherein: after receiving antenna (1201) receives signal, signal enters power splitter (1202), and signal is divided into two-way, all the way
Pass through the 5th bandpass filter (1203), the 5th low-noise amplifier (1204), the first envelope detector (1205) respectively, it is another
The 6th bandpass filter (1206), the 6th low-noise amplifier (1207), the second envelope detector (1208) are passed through in road respectively, and two
Road signal enters comparator (1209), from comparator (1209) export signal pass through respectively advanced matched filter (1210),
Export matched filter (1211), lag matched filter (1212) enters lock-out pulse decision circuit (1213) afterwards, synchronous arteries and veins
Decision circuit (1213) output signal is rushed into the first delay circuit (1214).
5. a kind of Light deformation telemetry system based on wireless synchronization technology according to claim 1, it is characterised in that: described
Wireless synchronization impulse ejection circuit (22) by transmitting antenna (2201), combiner (2202), first switch (2203), first carry
Wave producer (2204), third puppet code generation circuit (2205) negate circuit (2206), second switch (2207), the second carrier wave
Generator (2208), lock-out pulse generative circuit (2209), the second delay circuit (2210) are constituted；Second delay circuit (2210)
Export the second synchronization pulse (2212)；
Wherein: first carrier generator (2204) is connected with first switch (2203), the second carrier generator (2208) and second
(2207) are switched to be connected；Lock-out pulse generative circuit (2209) generates electricity with the second delay circuit (2210) and third pseudo-code respectively
Road (2205) is connected；Third puppet code generation circuit (2205) is connected with first switch (2203), and by negating circuit (2206)
It is connected with second switch (2207)；First switch (2203) and second switch (2207) are connected with combiner (2202) respectively, letter
Number eventually by combiner (2202) afterwards by transmitting antenna (2201) send out.
6. a kind of Light deformation telemetry system based on wireless synchronization technology according to claim 1, it is characterised in that: described
Pseudo-code be m-sequence or Gold code.
7. a kind of Light deformation method of telemetering based on wireless synchronization technology, it is characterised in that: method includes the following steps:
S1: survey station point (2) generates RF local oscillator signal, frequency fR1, sent out as radio-frequency carrier signal, and to monitoring point (1)
It penetrates；
S2: survey station point (2) sends wireless synchronization pulse signal to monitoring point using wireless synchronization impulse ejection circuit (22)；
S3: the radio-frequency carrier signal received is carried out process of frequency multiplication by monitoring point (1), the carrier signal after obtaining relevant frequency conversion,
Its frequency is fR2=2fR1；
S4: wireless synchronization pulse receiving circuit (12) extracts the first synchronization pulse (1109), and believes in this lock-out pulse
Number control under, generate mark monitoring point pseudo-code signal, and using this pseudo-code signal to the carrier signal after relevant frequency conversion into
Then row band spectrum modulation emits to survey station point (2)；
S5: survey station point (2) receives the echo-signal of monitoring point (1) transmitting, is f by frequencyR1Local RF local oscillator signal carry out
Process of frequency multiplication, obtaining frequency is fR2=2fR1RF local oscillator signal, survey station point (2) is received using this RF local oscillator signal
Echo-signal from monitoring point (1) carries out quadrature frequency conversion, is transformed to baseband signal；
S6: survey station point (2) controls second using the second synchronization pulse (2212) of wireless synchronization impulse ejection circuit output
Pseudo- code generation circuit regenerates monitoring point pseudo-code signal, then carries out coherently despreading to the baseband signal that quadrature down converter obtains,
It is sent to the displacement that displacement counting circuit (21) calculates monitoring point.
8. a kind of Light deformation method of telemetering based on wireless synchronization technology according to claim 7, it is characterised in that: in step
In rapid S4, wireless synchronization pulse receiving circuit (12) is by receiving antenna (1201), power splitter (1202), the 5th bandpass filter
(1203), the 5th low-noise amplifier (1204), the first envelope detector (1205), the 6th bandpass filter (1206), the 6th
It is low-noise amplifier (1207), the second envelope detector (1208), comparator (1209), advanced matched filter (1210), defeated
Matched filter (1211), lag matched filter (1212), lock-out pulse decision circuit (1213), the first delay circuit out
(1214) it constitutes；Delay circuit (1204) sends out the first synchronization pulse (1109)；Receiving antenna (1201) receives signal
Afterwards, signal enters power splitter (1202), and signal is divided into after two-way all the way respectively by the 5th bandpass filter (1203), the 5th
Low-noise amplifier (1204), the first envelope detector (1205), another way pass through the 6th bandpass filter (1206), respectively
Six low-noise amplifiers (1207), the second envelope detector (1208), two paths of signals enters comparator (1209), from comparator
(1209) signal exported passes through advanced matched filter (1210), output matched filter (1211), lag matching filter respectively
Wave device (1212) enters lock-out pulse decision circuit (1213) afterwards, and lock-out pulse decision circuit (1213) output signal enters first
Delay circuit (1214).
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