CN107831477A - A kind of digital transmitting and receiving component Auto-Test System - Google Patents
A kind of digital transmitting and receiving component Auto-Test System Download PDFInfo
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- CN107831477A CN107831477A CN201710983507.7A CN201710983507A CN107831477A CN 107831477 A CN107831477 A CN 107831477A CN 201710983507 A CN201710983507 A CN 201710983507A CN 107831477 A CN107831477 A CN 107831477A
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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
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a kind of digital transmitting and receiving component Auto-Test System provided by the invention, wherein：Optical fiber synchronization transceiver, do not received under broadband noise signal state for receiving measured number transmitting-receiving subassembly, the first base band echo data sent, the first noise power is calculated according to the first base band echo data；Receive measured number transmitting-receiving subassembly to receive under broadband noise signal state, the second base band echo data sent, the second noise power is calculated according to the second base band echo data；Optical fiber synchronization transceiver, it is additionally operable to the noise coefficient according to the first noise power and the second noise power calculation measured number transmitting-receiving subassembly.Said system can be completed to digital transmitting-receiving subassembly noise-factor measurement under full coherent state, has very high practicality.
Description
Technical field
The present invention relates to radar testing device field, more particularly to a kind of digital transmitting and receiving component Auto-Test System.
Background technology
Digital transmitting and receiving component is the important component of Digital Array Radar, and its performance indications directly affects the property of radar
Energy, power and cost.A usual Digital Array Radar is all made up of tens even hundreds of digital transmitting and receiving components, therefore in batch
During production figures transmitting-receiving subassembly, it is necessary to the multiple transmission channel indexs of digital transmitting-receiving subassembly, such as transmission power, spurious reduction, humorous
Ripple suppression, local oscillator suppression, pulse top drop, transmission channel isolation etc.；Multiple receiving channel indexs, such as reception gain, attenuator
The many index such as control range and precision, reception bandwidth, image frequency suppression, instantaneous dynamic range, receiving channel isolation enters
Row measurement, verify and assess whether the function of digital transmitting and receiving component and performance indications meet the requirement of radar system with this.
With being continuously increased for radar front scale, current digital transmitting and receiving component need to use optical fiber as synchronizing signal with
Control command is sent, base band data returns and local oscillation signal coffret, and the test system of traditional approach can cause to be tested
Digital transmitting and receiving component is in non-coherent state, can not be effectively to the noise coefficient of measured number transmitting-receiving subassembly under full coherent state
Measure.
The content of the invention
For above-mentioned technical problem, present invention offer one kind, which can effectively solve current test equipment, can not complete digital transmitting and receiving
The digital transmitting and receiving component Auto-Test System of noise-factor measurement under the full coherent state of component.
In order to solve the above technical problems, the technical solution used in the present invention is：It is automatic to provide a kind of digital transmitting and receiving component
Test system, including measured number transmitting-receiving subassembly, in addition to transmitting-receiving synchronous with the optical fiber of measured number transmitting-receiving subassembly connection
Equipment, and transceiver synchronous with the measured number transmitting-receiving subassembly and optical fiber connection, for providing broadband noise
The program control noise source of signal, shake signal generating apparatus and for for the measured number for providing the trimmed book of light local oscillation signal
The programme-controlled dc power of transmitting-receiving subassembly power supply；
The optical fiber synchronization transceiver, broadband noise signal shape is not received for receiving the measured number transmitting-receiving subassembly
Under state, the first base band echo data for sending, the first noise power is calculated according to the first base band echo data；
Receive the measured number transmitting-receiving subassembly to receive under broadband noise signal state, the second base band number of echoes sent
According to according to the second base band echo data the second noise power of calculating；
The optical fiber synchronization transceiver, it is additionally operable to according to first noise power and second noise power calculation
The noise coefficient of the measured number transmitting-receiving subassembly.
The present invention uses above technical scheme, and the technique effect reached is：Digital transmitting and receiving component provided by the invention is automatic
Test system, light local oscillation signal is provided for measured number transmitting-receiving subassembly by the trimmed book signal generating apparatus that shakes, synchronously received by optical fiber
Hair equipment receives the measured number transmitting-receiving subassembly and receives and do not receive under broadband noise signal state, the base band number of echoes sent
According to, noise power twice is determined according to base band echo data, can be effectively complete according to the noise power under different situations
Under coherent state, the automatic test to digital transmitting-receiving subassembly noise-factor measurement is completed, test process all automates, test
Efficiency high, index is accurate, reduces influence of the manual operation factor to test result, has very high practicality.
More preferably, in the above-mentioned technical solutions, the trimmed book shakes signal generating apparatus including for producing sampling clock letter
Number sampled clock signal source, the local oscillation signal source for producing signal and the two local oscillators letter for producing two signals
Number source and the light for a signal, two signals and the sampled clock signal to be modulated into light local oscillation signal
Signal modulator；
The sampled clock signal source, the local oscillation signal source and the two local oscillation signals source are synchronous with the optical fiber
Transceiver is connected with the optical signal modulator, and the local oscillation signal source is connected with the two local oscillation signals source, and described two
Local oscillation signal source is connected with the sampled clock signal source, and the optical signal modulator connects with the measured number transmitting-receiving subassembly
Connect.
More preferably, in the above-mentioned technical solutions, the trimmed book shake signal generating apparatus also include and the sampling clock believe
The power splitter that number source, the optical fiber synchronization transceiver connect with the optical signal modulator：For the sampling clock to be believed
Number it is forwarded to the optical fiber synchronization transceiver and the optical signal modulator.
More preferably, in the above-mentioned technical solutions, the system also includes transceiver synchronous with the optical fiber and the quilt
Survey the signal analyzer of digital transmitting and receiving component connection；
The signal analyzer, under the measured number transmitting-receiving subassembly pulse signal emission state, to the quilt
The performance indications for surveying digital transmitting and receiving component are measured, and measurement result is sent to the optical fiber synchronization transceiver；
Wherein：The performance indications include transmission power, spurious reduction, harmonics restraint, local oscillator suppress, pulse top drop and
Transmission channel isolation.
More preferably, in the above-mentioned technical solutions, the system also includes transceiver synchronous with the optical fiber and the quilt
The pulsion phase for surveying the connection of digital transmitting and receiving component is made an uproar tester, and the signal analyzer and the pulsion phase tester of making an uproar are connected；
The pulsion phase is made an uproar tester, under the measured number transmitting-receiving subassembly pulse signal emission state, to institute
The impulse phase noise for stating measured number transmitting-receiving subassembly is measured, and measurement result is sent to optical fiber synchronization transmitting-receiving and set
It is standby.
More preferably, in the above-mentioned technical solutions, the system also includes transceiver synchronous with the optical fiber, described tested
The excitation noise source that digital transmitting and receiving component connects with the signal analyzer：
For providing excitation clawback signal for the measured number transmitting-receiving subassembly；
The optical fiber synchronization transceiver：It is additionally operable to receive excitation clawback signal condition in the measured number transmitting-receiving subassembly
Under, the digital baseband echo that the measured number transmitting-receiving subassembly is sent is received, the digital baseband echo is stored and counted
Calculate, determine the receptivity index of the measured number transmitting-receiving subassembly；
Wherein：The receptivity index includes reception gain, attenuator control range and precision, reception bandwidth, mirror image
Frequency suppression, instantaneous dynamic range and receiving channel isolation.
More preferably, in the above-mentioned technical solutions, the system also includes transceiver synchronous with the optical fiber, the sampling
Signal source of clock, the two local oscillation signals source, the local oscillation signal source, the exciting signal source, the signal analyzer, institute
Pulsion phase is stated to make an uproar the interchanger that tester, the program control noise source connect with the programme-controlled dc power；
The interchanger, exchanged for completing apparatus interconnection and information.
More preferably, in the above-mentioned technical solutions, the system also includes and the exciting signal source, the signal analysis
Instrument, the pulsion phase are made an uproar the termination matrix switch that tester, the program control noise source connect with the measured number transmitting-receiving subassembly；
The termination matrix switch, for selecting to make an uproar in the exciting signal source, the signal analyzer, the pulsion phase
Selected in tester or the program control noise source, and selection is corresponding with selecting apparatus on the measured number transmitting-receiving subassembly
TCH test channel.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the schematic frame diagram of the embodiment of digital transmitting and receiving component Auto-Test System one provided by the invention；
Fig. 2 is the schematic frame diagram of another embodiment of digital transmitting and receiving component Auto-Test System provided by the invention.
Embodiment
As shown in figure 1, digital transmitting and receiving component Auto-Test System provided by the invention, including measured number transmitting-receiving subassembly,
Also include transceiver synchronous with the optical fiber of measured number transmitting-receiving subassembly connection, and it is same with measured number transmitting-receiving subassembly and optical fiber
Transceiver connection is walked, for providing the program control noise source of broadband noise signal, being shaken for providing the trimmed book of light local oscillation signal
Signal generating apparatus and the programme-controlled dc power for being powered for measured number transmitting-receiving subassembly；
Optical fiber synchronization transceiver, do not receive under broadband noise signal state, send out for receiving measured number transmitting-receiving subassembly
The the first base band echo data gone out, the first noise power is calculated according to the first base band echo data；
Receive measured number transmitting-receiving subassembly to receive under broadband noise signal state, the second base band echo data sent, root
The second noise power is calculated according to the second base band echo data；
Optical fiber synchronization transceiver, it is additionally operable to according to the first noise power and the transmitting-receiving of the second noise power calculation measured number
The noise coefficient of component.
As a kind of embodiment, when trimmed book shakes signal generating apparatus including being used to produce the sampling of sampled clock signal
Clock signal source, the local oscillation signal source for one signal of generation and the two local oscillation signal sources for two signals of generation and use
In the optical signal modulator that a signal, two signals and sampled clock signal are modulated into light local oscillation signal；
Sampled clock signal source, a local oscillation signal source and two local oscillation signal sources transceiver synchronous with optical fiber and optical signal
Modulator is connected, and a local oscillation signal source is connected with two local oscillation signal sources, and two local oscillation signal sources are connected with sampled clock signal source, light
Signal modulator is connected with measured number transmitting-receiving subassembly.
As a kind of embodiment, trimmed book shakes signal generating apparatus also including synchronous with sampled clock signal source, optical fiber
The power splitter that transceiver connects with optical signal modulator：For by sampled clock signal be forwarded to optical fiber synchronization transceiver and
Optical signal modulator.
As a kind of embodiment, system also includes transceiver synchronous with optical fiber and measured number transmitting-receiving subassembly connects
Signal analyzer；
Signal analyzer, under measured number transmitting-receiving subassembly pulse signal emission state, to measured number transmitting-receiving group
The performance indications of part are measured, and measurement result is sent to optical fiber synchronization transceiver；
Wherein：Performance indications include transmission power, spurious reduction, harmonics restraint, local oscillator suppression, pulse top drop and transmitting
Channel isolation.
As a kind of embodiment, system also includes transceiver synchronous with optical fiber and measured number transmitting-receiving subassembly connects
Pulsion phase make an uproar tester, signal analyzer and pulsion phase tester of making an uproar are connected；
Pulsion phase is made an uproar tester, under measured number transmitting-receiving subassembly pulse signal emission state, being received to measured number
The impulse phase noise of hair component is measured, and measurement result is sent to optical fiber synchronization transceiver.
As a kind of embodiment, system also includes transceiver synchronous with optical fiber, measured number transmitting-receiving subassembly and letter
The excitation noise source of number analyzer connection：
For providing excitation clawback signal for measured number transmitting-receiving subassembly；
Optical fiber synchronization transceiver：It is additionally operable in the case where measured number transmitting-receiving subassembly receives excitation clawback signal condition, receives
The digital baseband echo that measured number transmitting-receiving subassembly is sent, digital baseband echo is stored and calculated, determines measured number
The receptivity index of transmitting-receiving subassembly；
Wherein：Receptivity index includes reception gain, attenuator control range and precision, reception bandwidth, image frequency
Suppression, instantaneous dynamic range and receiving channel isolation.
As a kind of embodiment, system also includes transceiver synchronous with optical fiber, sampled clock signal source, two local oscillators
Signal source, a local oscillation signal source, exciting signal source, signal analyzer, pulsion phase are made an uproar tester, program control noise source and program control direct current
The interchanger of power supply connection；
Interchanger, exchanged for completing apparatus interconnection and information.
As shown in Fig. 2 system also includes making an uproar tester, program control noise source with exciting signal source, signal analyzer, pulsion phase
The termination matrix switch connected with measured number transmitting-receiving subassembly；
Matrix switch is terminated, for selecting to make an uproar tester or program control noise in exciting signal source, signal analyzer, pulsion phase
Selected in source, and TCH test channel corresponding with selecting apparatus is selected on measured number transmitting-receiving subassembly.
Further, the phototiming input of the phototiming output end of optical fiber synchronization transceiver and measured number transmitting-receiving subassembly
End connection, the control command output end of optical fiber synchronization transceiver and the control command input of measured number transmitting-receiving subassembly connect
Connect, the base band echo input of optical fiber synchronization transceiver connects with the base band echo output end of measured number transmitting-receiving subassembly.Adopt
The sampling clock output end of sample signal source of clock connects with the sampling clock input of power splitter, the signal output part of power splitter,
The signal input part with optical fiber synchronization transceiver, the signal input part of optical signal modulator connect respectively.Two local oscillation signal sources
Two local oscillation signal output ends connected with two local oscillation signal inputs of optical signal modulator.The one local oscillator letter in one local oscillation signal source
Number output end connects with a local oscillation signal input of optical signal modulator.The modulated signal output end of optical signal modulator and by
Survey the modulated signal input connection of digital transmitting and receiving component.The pumping signal output end of exciting signal source and termination matrix switch
Signal input part connects, and the noise signal output end of program control noise source connects with the signal input part of termination matrix switch.Termination
The signal output part of matrix switch, the respectively signal input part with signal analyzer, pulsion phase are made an uproar the signal input part of analyzer
Connection.Terminate matrix switch multiple signal ports respectively with measured number transmitting-receiving subassembly corresponding to signal port be bi-directionally connected.
The power supply output interface of programme-controlled dc power connects with the supply input interface of measured number transmitting-receiving subassembly.
The pulsion phase coherent reference output mouth of tester of making an uproar connects with the coherent benchmark input end mouth of signal analyzer；Letter
Number coherent reference output mouth of analyzer connects with the coherent benchmark input end mouth of exciting signal source；The coherent of exciting signal source
Reference output mouth and the connection of the coherent benchmark input end mouth in a local oscillation signal source；The coherent reference output in one local oscillation signal source
Mouth connects with the coherent benchmark input end mouth in two local oscillation signal sources；When the coherent reference output mouth in two local oscillation signal sources and sampling
The coherent benchmark input end mouth connection of clock signal source.
Multiple network ports of the interchanger network port with optical fiber synchronization transceiver, sampled clock signal source respectively
The network port, the network port in two local oscillation signal sources, the network port in a local oscillation signal source, exciting signal source the network port,
The network port, the pulsion phase of signal analyzer are made an uproar the network port of tester, the network port of program control noise source, program control direct current
The network port in source is bi-directionally connected.
Specifically used mode is as follows：
First, test system normal power-up.Tester selects test index and test on optical fiber synchronization transceiver
Passage, it is measured number transmitting-receiving subassembly to control programme-controlled dc power by the network port of interchanger by optical fiber synchronization transceiver
Power supply, and the supply current of programme-controlled dc power is read by the network port of interchanger, and then judge digital received group to be measured
Whether part works in normal power supply；Optical fiber synchronization transceiver controls sampled clock signal by the network port of interchanger
Source, two local oscillation signal sources, a local oscillation signal source export required sampled clock signal, two local oscillation signals, a local oscillation signal respectively.
Wherein, after sampled clock signal is allocated by power splitter, it is used to produce coherent all the way into optical fiber synchronization transceiver
Control command and optical synchronous signal；Another way sampled clock signal and two local oscillation signals, a local oscillation signal enter optical signal simultaneously
Modulator completes signal modulation.The light local oscillation signal of optical signal modulator output enters measured number transmitting-receiving subassembly.
Then, when testing reception signal, optical fiber synchronization transceiver controls measured number to receive by optical fiber control command
Hair component is in receiving state signal, if noise-factor measurement will not be carried out, passes through the network port control terminal of interchanger
Connect matrix switch and switch to exciting signal source path, control exciting signal source to be in signal output by the network port of interchanger
State, pumping signal are sent into the TCH test channel needed for measured number transmitting-receiving subassembly after termination matrix switch switching.Numeral is received
Hair component forms digital baseband echo storage-reception signal test after being acquired for input signal, digital baseband echo leads to
Cross optical fiber deliver to optical fiber synchronization transceiver carry out storage and index calculate.If carrying out noise-factor measurement, pass through exchange
The network port control termination matrix switch of machine switches to program control noise source path, is controlled by the network port of interchanger program control
Noise source is in off-position, and digital transmitting and receiving component forms digital baseband echo, digital base after being acquired for input signal
Band echo by optical fiber deliver to optical fiber synchronization transceiver stored and calculate noise power light synchronization R-T unit calculate
Noise power；Subsequent then by interchanger the network port controls program control noise source to be in "on" position, digital transmitting and receiving component pair
Digital baseband echo is formed after input signal is acquired, digital baseband echo delivers to optical fiber synchronization transceiver by optical fiber
Stored and calculate noise power, by comparing the power that digital transmitting and receiving component receives under the powered off and on state of noise source
Ratio, noise coefficient can be obtained.
When measuring measured number transmitting-receiving subassembly noise coefficient, optical fiber synchronization transceiver only needs the net by interchanger
Network port controlling termination switch matrix switches to program control noise source channels, is powered and numeral under off-position by comparing noise source
The ratio for the power that transmitting-receiving subassembly receives, to calculate noise coefficient.
When testing transmission signal, optical fiber synchronization transceiver controls measured number transmitting-receiving subassembly by optical fiber control command
In pulse signal emission state.Optical fiber synchronization transceiver, will by the network port control termination matrix switch of interchanger
Passage to be tested switches to signal analyzer to induction signal by termination matrix switch or pulsion phase is made an uproar tester, then pass through friendship
The network port control signal analyzer changed planes completes the index measurements such as transmission power, spurious reduction, harmonics restraint, local oscillator leakage
Or control pulsion phase make an uproar tester complete impulse phase noise testing.
Finally, when testing reception signal, optical fiber synchronization transceiver needs the digital baseband echo-signal for storage
Further data processing is carried out, to obtain required test index, storage shows and forms result form；In test transmitting letter
Number when, optical fiber synchronization transceiver needs to be acquired, deposit for the make an uproar result of tester measurement of signal analyzer and pulsion phase
Storage display, and form result form.
The present invention uses above technical scheme, and the technique effect reached is：Digital transmitting and receiving component provided by the invention is automatic
Test system, light local oscillation signal is provided for measured number transmitting-receiving subassembly by the trimmed book signal generating apparatus that shakes, synchronously received by optical fiber
Hair equipment receives measured number transmitting-receiving subassembly and receives and do not receive under broadband noise signal state, the base band echo data sent,
Noise power twice is determined according to base band echo data, can be effectively in full phase according to the noise power under different situations
Under ginseng state, the automatic test to digital transmitting-receiving subassembly noise-factor measurement is completed, test process all automates, test effect
Rate is high, and index is accurate, reduces influence of the manual operation factor to test result, has very high practicality.
It can be that professional and technical personnel in the field realize or used that above-mentioned embodiment, which is intended to illustrate the present invention, to above-mentioned
Embodiment is modified and will be apparent for those skilled in the art, therefore the present invention includes but is not limited to
Above-mentioned embodiment, it is any to meet the claims or specification description, meet with principles disclosed herein and novelty,
The method of inventive features, technique, product, each fall within protection scope of the present invention.
Claims (8)
1. a kind of digital transmitting and receiving component Auto-Test System, including measured number transmitting-receiving subassembly, it is characterised in that：Also include and institute
State measured number transmitting-receiving subassembly connection optical fiber synchronization transceiver, and with the measured number transmitting-receiving subassembly and the optical fiber
Synchronous transceiver connection, for providing the program control noise source of broadband noise signal, the trimmed book for providing light local oscillation signal
Shake signal generating apparatus and the programme-controlled dc power for being powered for the measured number transmitting-receiving subassembly；
The optical fiber synchronization transceiver, broadband noise signal state is not received for receiving the measured number transmitting-receiving subassembly
Under, the first base band echo data for sending, the first noise power is calculated according to the first base band echo data；
Receive the measured number transmitting-receiving subassembly to receive under broadband noise signal state, the second base band echo data sent, root
The second noise power is calculated according to the second base band echo data；
The optical fiber synchronization transceiver, it is additionally operable to according to first noise power and second noise power calculation
The noise coefficient of measured number transmitting-receiving subassembly.
2. digital transmitting and receiving component Auto-Test System as claimed in claim 1, it is characterised in that：The trimmed book shakes signal generation
The sampled clock signal source that device includes being used to produce sampled clock signal, the local oscillation signal source for producing signal and
During for the two local oscillation signal sources of two signals of generation and for by a signal, two signals and the sampling
Optical signal modulator of the clock signal modulation into light local oscillation signal；
The transmitting-receiving synchronous with the optical fiber of the sampled clock signal source, the local oscillation signal source and the two local oscillation signals source
Equipment is connected with the optical signal modulator, and the local oscillation signal source is connected with the two local oscillation signals source, two local oscillator
Signal source is connected with the sampled clock signal source, and the optical signal modulator is connected with the measured number transmitting-receiving subassembly.
3. digital transmitting and receiving component Auto-Test System as claimed in claim 2, it is characterised in that：The trimmed book shakes signal generation
Device also includes the work(with the connection of the sampled clock signal source, the synchronous transceiver of the optical fiber and the optical signal modulator
Divide device：For the sampled clock signal to be forwarded into the optical fiber synchronization transceiver and the optical signal modulator.
4. the digital transmitting and receiving component Auto-Test System as described in any one of claims 1 to 3, it is characterised in that：The system
Also include the signal analyzer that transceiver synchronous with the optical fiber and the measured number transmitting-receiving subassembly connect；
The signal analyzer, under the measured number transmitting-receiving subassembly pulse signal emission state, to the measurand
The performance indications of word transmitting-receiving subassembly are measured, and measurement result is sent to the optical fiber synchronization transceiver；
Wherein：The performance indications include transmission power, spurious reduction, harmonics restraint, local oscillator suppression, pulse top drop and transmitting
Channel isolation.
5. digital transmitting and receiving component Auto-Test System as claimed in claim 4, it is characterised in that：The system also includes and institute
State optical fiber synchronization transceiver and made an uproar tester with the pulsion phase that the measured number transmitting-receiving subassembly connects, the signal analyzer with
The pulsion phase make an uproar tester connection；
The pulsion phase is made an uproar tester, under the measured number transmitting-receiving subassembly pulse signal emission state, to the quilt
The impulse phase noise for surveying digital transmitting and receiving component is measured, and measurement result is sent to the optical fiber synchronization transceiver.
6. digital transmitting and receiving component Auto-Test System as claimed in claim 5, it is characterised in that：The system also includes and institute
State optical fiber synchronization transceiver, the excitation noise source that the measured number transmitting-receiving subassembly connects with the signal analyzer：
For providing excitation clawback signal for the measured number transmitting-receiving subassembly；
The optical fiber synchronization transceiver：It is additionally operable in the case where the measured number transmitting-receiving subassembly receives excitation clawback signal condition,
The digital baseband echo that the measured number transmitting-receiving subassembly is sent is received, the digital baseband echo is stored and calculated,
Determine the receptivity index of the measured number transmitting-receiving subassembly；
Wherein：The receptivity index includes reception gain, attenuator control range and precision, reception bandwidth, image frequency
Suppression, instantaneous dynamic range and receiving channel isolation.
7. the digital transmitting and receiving component Auto-Test System as described in claim 5 or 6, it is characterised in that：The system also includes
Transceiver synchronous with the optical fiber, the sampled clock signal source, the two local oscillation signals source, the local oscillation signal source,
The exciting signal source, the signal analyzer, the pulsion phase are made an uproar tester, the program control noise source and the program control direct current
The interchanger of power supply connection；
The interchanger, exchanged for completing apparatus interconnection and information.
8. digital transmitting and receiving component Auto-Test System as claimed in claim 7, it is characterised in that：The system also includes and institute
Make an uproar tester, the program control noise source and the measured number of exciting signal source, the signal analyzer, the pulsion phase is stated to receive
Send out the termination matrix switch of component connection；
The termination matrix switch, for selecting in the exciting signal source, the signal analyzer, the pulse Phase noise measurement
Selected in instrument or the program control noise source, and survey corresponding with selecting apparatus is selected on the measured number transmitting-receiving subassembly
Ping.
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| CN109450469A (en) * | 2018-12-29 | 2019-03-08 | 中电科仪器仪表有限公司 | A kind of noise power calculation method based on FPGA |
| CN113805148A (en) * | 2021-08-18 | 2021-12-17 | 北京无线电测量研究所 | Multifunctional digital TR component optical fiber testing device, system and method |
| CN113805148B (en) * | 2021-08-18 | 2023-11-28 | 北京无线电测量研究所 | Multifunctional digital TR (transmitter/receiver) component optical fiber testing device, system and method |
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