CN105656569B - Wireless signal measuring system - Google Patents
Wireless signal measuring system Download PDFInfo
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- CN105656569B CN105656569B CN201610147906.5A CN201610147906A CN105656569B CN 105656569 B CN105656569 B CN 105656569B CN 201610147906 A CN201610147906 A CN 201610147906A CN 105656569 B CN105656569 B CN 105656569B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0087—Monitoring; Testing using service channels; using auxiliary channels using auxiliary channels or channel simulators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Monitoring And Testing Of Transmission In General (AREA)
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Abstract
The present invention relates to a kind of wireless signal measuring systems, comprising: accompanies measurement equipment and test master, the signal between the first enclosure space and the second enclosure space to propagate simulator positioned at the wireless Devices to test and radiating antenna group of the first enclosure space, positioned at the second enclosure space.First enclosure space, the second enclosure space are provided with the condition of free space.Signal propagates simulator, for analog wireless signals propagation model, and the data that are sent by wireless Devices to test of radiating antenna group wireless receiving be sent to after channel simulation processing and accompany measurement equipment or signal to propagate simulator to carry out the data for accompanying measurement equipment to transmit to be wirelessly transmitted to wireless Devices to test by radiating antenna group after channel simulation processing.The wireless signal measuring system can simulate the different communication mode such as wireless Devices to test transmitting or the reflection, diffraction, the direct projection that receive signal, verify place instead of actual test, can be improved the test performance and testing efficiency of Signal Measurement System.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly to a kind of wireless signal measuring system.
Background technique
As the standard of IEEE802.11 series constantly promotes, technology advance and practicability be continuously available it is perfect,
All kinds of radio communication products need to have good transmitting and receptivity, can guarantee communication quality, could mention for users
For more excellent voice-and-data business.By many years study, about SISO (single input single output,
Single-input single-output) space radiance index in system test method and device it is very mature, especially GSM system
System.
Nowadays the 4G epoch such as 3G or even subsequent LTE (Long Term Evolution, long term evolution), SISO system are carried out
System has been far from satisfying demand.In new high-speed high-quality amount wireless communication system, MIMO (Multiple usually can be all used
Input Multiple Output, multiple-input and multiple-output) system.However due to the testability of conventional wireless Signal Measurement System
Can be lower, it can not support the performance of the radio communication product in the requirement of the new technologies such as MIMO, especially mimo system to survey
Examination scheme still imperfect at present.
Summary of the invention
Based on this, it is necessary to for the lower problem of conventional wireless Signal Measurement System performance, provide a kind of wireless signal
Measuring system.
A kind of wireless signal measuring system, comprising: positioned at the first enclosure space wireless Devices to test and radiating antenna group,
Measurement equipment and test master are accompanied, between first enclosure space and the second enclosure space positioned at the second enclosure space
Signal propagate simulator；First enclosure space, the second enclosure space are provided with the condition of free space；The radiation
Antenna sets, signal propagate simulator, measurement equipment are accompanied to pass sequentially through radio-frequency cable connection；It is described accompany measurement equipment also with test master control
Device connection；
The signal propagates simulator, is used for analog wireless signals propagation model, and the radiating antenna group is wireless
Being sent to after the received data progress channel simulation processing sent by wireless Devices to test accompanies measurement equipment or the signal to propagate
Simulator will be wirelessly transmitted to nothing by radiating antenna group after the data progress channel simulation processing for accompanying measurement equipment to transmit
Line Devices to test.
In one of the embodiments, the signal propagate simulator include mode emulator interconnected and
Attenuator；The mode emulator, for simulating radio wave channel, there are wireless signal transmission models when barrier；
The attenuator, for simulating the signal propagation losses of free space.
The mode emulator includes demultiplexer, the first signal generator, in one of the embodiments,
Binary signal generator, circuit delay device and signal synthesizer；
The demultiplexer for the input signal of the mode emulator to be separated into two paths of signals, and divides
It is not sent in the first signal generator and second signal generator；First signal generator, second signal generator, root
The signal that two-way phase and amplitude are all different is exported respectively according to respective input signal；The circuit delay device, for institute
The signal for stating the output of second signal generator carries out delay process；The signal synthesizer, for generating first signal
The signal that device, circuit delay device export merges into signal all the way, and is sent to the attenuator.
In one of the embodiments, first signal generator include sequentially connected first sample of signal unit,
Switch and first phase delay cell；One of input terminal of the first sample of signal unit is first signal generation
The input terminal of device, the output end of the first sample of signal unit are the output end of first signal generator.
In one of the embodiments, the second signal generator include sequentially connected second signal sampling unit,
Attenuation units, second phase delay cell；One of input terminal of the second signal sampling unit is the second signal
The input terminal of generator, the output end of the second signal sampling unit are the output end of the second signal generator.
First enclosure space is provided by microwave dark room in one of the embodiments,.
Absorbing material is set in the microwave dark room in one of the embodiments, and the absorbing material includes inhaling wave
One or more of plate, suction wave splitter, suction popin cone.
Rotating platform is equipped in the microwave dark room in one of the embodiments, and the rotating platform is for placing
The wireless Devices to test.
Second enclosure space is provided by shielded box in one of the embodiments, and is equipped with and is inhaled in the shielded box
Flat plate.
It is described in one of the embodiments, that accompany measurement equipment include radio frequency switch and several in different operating frequency range
Reception/launch terminal；Each reception/launch terminal is switched on or switched off and the signal propagating mode by the radio frequency switch
The connection of quasi- device.
Above-mentioned wireless signal measuring system has the beneficial effect that in the wireless signal measuring system, wirelessly to be measured to set
Standby and radiating antenna group is respectively positioned on the first enclosure space, accompanies measurement equipment and test master to be respectively positioned on the second enclosure space, simultaneously
First enclosure space and the second enclosure space are provided with the condition of free space, to for wireless Devices to test and measurement equipment be accompanied to mention
For a pure electromagnetic environment.
Meanwhile there is also signals to propagate simulator between wireless Devices to test and the communication link for accompanying measurement equipment, and
The signal propagates simulator and is used for analog wireless signals propagation model, and by radiating antenna group wireless receiving by wireless to be measured
It is sent to after the data progress channel simulation processing that equipment is sent and measurement equipment or signal propagation simulator is accompanied measurement equipment will to be accompanied to pass
Wireless Devices to test is wirelessly transmitted to by radiating antenna group after the data progress channel simulation processing come.
Therefore the wireless signal measuring system for wireless Devices to test and accompany measurement equipment provide no external interference and it is weak instead
On the basis of the test environment penetrated, additionally it is possible to simulate wireless Devices to test transmitting or the reflection, diffraction, the direct projection that receive signal etc. no
Same communication mode verifies place instead of actual test, so as to improve test performance and the survey of Signal Measurement System
Try efficiency.
Detailed description of the invention
Fig. 1 is the composed structure schematic diagram for the wireless signal measuring system that an embodiment provides.
Fig. 2 is the composed structure signal that signal propagates simulator in the wireless signal measuring system of embodiment illustrated in fig. 1
Figure.
Fig. 3 be embodiment illustrated in fig. 1 wireless signal measuring system in accompany the composed structure schematic diagram of measurement equipment.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give presently preferred embodiments of the present invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more thorough
Comprehensively.
Unless otherwise defined, the skill of all technical and scientific terms used herein and the technical field for belonging to invention
The normally understood meaning of art personnel is identical.It is specific that description is intended merely in the term used in the description of invention herein
The purpose of embodiment, it is not intended that the limitation present invention.Term as used herein "and/or" includes one or more relevant institutes
Any and all combinations of list of items.
As shown in Figure 1, in one embodiment, it is substandard a set of that wireless signal measuring system is built upon IEEE802.11
The measuring system of analog subscriber real network environment, the system joined signal in test link and propagate simulator 3000,
Emulate actual radio propagation channel with obtain with propagation model similar in actual environment, thus closer to actual user
Web experience.Next the realization principle of the wireless signal measuring system will specifically be introduced.
Wireless signal measuring system includes wireless Devices to test 1000, radiating antenna group 2000, signal propagation simulator
3000, measurement equipment 4000 and test master 5000 are accompanied.
In the wireless signal measuring system, wireless Devices to test 1000 and radiating antenna group 2000 mutually can be passed wirelessly
Transmission of data, and be respectively positioned in the first enclosure space.It simultaneously include antenna in wireless Devices to test 1000, and radiating antenna group 2000
Positioned at the radiated far field of wireless 1000 antenna of Devices to test, and radiating antenna group 2000 is then equivalent to and accompanies 4000 one end of measurement equipment
Antenna.
Measurement equipment 4000 and test master 5000 is accompanied to be respectively positioned in the second enclosure space.First enclosure space, the simultaneously
Two enclosure spaces are provided with the condition of free space, i.e., Electromgnetically-transparent, reflection are few in the two spaces, to be wireless
Devices to test 1000 and accompany measurement equipment 4000 provide a pure electromagnetic environment, to improve testing efficiency.
In addition, radiating antenna group 2000, signal propagate simulator 3000, measurement equipment 4000 are accompanied to pass sequentially through radio-frequency cable
Connection.Measurement equipment 4000 is accompanied also to connect with test master 5000.
Signal propagates simulator 3000, is used for analog wireless signals propagation model, and radiating antenna group 2000 is wireless
It is sent to after the received data progress channel simulation processing sent by wireless Devices to test 1000 and accompanies measurement equipment 4000 or signal
It propagates after the data for accompanying measurement equipment 4000 to transmit are carried out channel simulation processing by simulator 3000 and passes through radiating antenna group 2000
It is wirelessly transmitted to wireless Devices to test 1000.Above-mentioned channel simulation processing is grasped such as carrying out propagation path loss, phase delay
Make.
It can be seen that in the present embodiment, wireless Devices to test 1000 and the signal transmission path between measurement equipment 4000 is accompanied
Altogether include two parts: first part is wireless Devices to test 1000 and the antenna for accompanying 4000 one end of measurement equipment in the first enclosure space
Space propagation between (and radiating antenna group 2000)；Second part is that signal propagates simulator 3000.Wherein, in the first envelope
It closes wireless Devices to test 1000 and radiating antenna group 2000 in space to be equivalent to and carried out glitch-free wireless signal transmission, in this way
Be more convenient for follow-up signal propagate simulator 3000 carry out actual channel simulation.
The working principle of so above-mentioned wireless signal measuring system are as follows: if wireless Devices to test 1000 emits signal, the letter
Number then pass through the aerial radiation in wireless Devices to test 1000 to space (i.e. space in the first enclosure space).The signal is meeting
It is accompanied the antenna of 4000 one end of measurement equipment (i.e. radiating antenna group 2000) to receive and signal propagating mode is sent to by radio-frequency cable
Quasi- device 3000 is handled, with feelings such as analog wireless channel transmission propagation path loss caused by the signal, phase delays
Condition.Signal propagate simulator 3000 again will treated that signal is sent to by radio-frequency cable accompanies measurement equipment 4000, to build
Communication link has been found, the half period of communication is completed.Similarly, it accompanies measurement equipment 4000 that can also emit signal and carries out above-mentioned identical
It after processing, is finally received by wireless Devices to test 1000, to complete the another half period of communication.
Therefore, wireless signal measuring system provided in this embodiment for wireless Devices to test 1000 and is accompanying measurement equipment 4000
On the basis of providing without external interference and transonic test environment, additionally it is possible to simulate the wireless transmitting of Devices to test 1000 or receive
The different communication mode such as reflection, diffraction, the direct projection of signal verifies place instead of actual test, so as to further
Improve the test performance and testing efficiency of Signal Measurement System.
Specifically, in above-mentioned wireless signal measuring system, as shown in Fig. 2, it includes phase that signal, which propagates simulator 3000,
The mode emulator 3100 and attenuator 3200 to connect.Wherein, mode emulator 3100, for simulating radio
There are wireless signal transmission models when barrier for wave channel, to construct the propagation path loss of wireless signal, phase delay
Deng.Attenuator 3200, for simulating the signal propagation losses of free space.
In the present embodiment, attenuator 3200 is programmable attenuator, can reduce the letter of wireless transmission link according to demand
Number amplitude, to achieve the purpose that the signal propagation losses for simulating free space.Meanwhile mode emulator 3100 and decaying
The specific circuit connecting relation of device 3200 are as follows: the input terminal of mode emulator 3100 is that signal propagates simulator 3000
The output end of input terminal, mode emulator 3100 is connect with the input terminal of attenuator 3200, the output end of attenuator 3200
The as output end of signal propagation simulator 3000.
So, simulator 3000 is propagated for above-mentioned signal, after receiving input signal, signal first passes through mode
Emulator 3100 carries out the processing such as associated propagation path loss decline, phase delay, and mode emulator 3100 again will later
Data that treated are sent into attenuator 3200 and are handled.Therefore, the signal in the present embodiment is propagated simulator 3000 and is passed through
Mode emulator 3100 and attenuator 3200 are capable of the mode of full-scope simulation radio wave channel, so that test is more
Add accurate.
It is understood that the specific structure that signal propagates simulator 3000 is not limited to a kind of above-mentioned situation, as long as energy
Enough analog wireless signals propagation models.
Specifically, as shown in Fig. 2, being propagated in simulator 3000 in above-mentioned signal, mode emulator 3100 includes
Demultiplexer 3110, the first signal generator 3120, second signal generator 3130, circuit delay device 3140 and signal synthesis
Device 3150.
Wherein, the input terminal of demultiplexer 3110 is the input terminal of mode emulator 3100, demultiplexer
3110 output end is connect with the input terminal of the first signal generator 3120, second signal generator 3130 respectively.First signal
The output end of generator 3120 is connect with the input terminal of signal synthesizer 3150.The output end of second signal generator 3130 passes through
Another input terminal of 3140 connection signal synthesizer 3150 of circuit delay device.The output end of signal synthesizer 3150 is mode
The output end of emulator 3100.
Demultiplexer 3110, for (i.e. signal to propagate simulator by the input signal of mode emulator 3100
3000 input signal) it is separated into two paths of signals, and it is respectively sent to the first signal generator 3120 and second signal generator
In 3130.Wherein, the input signal of mode emulator 3100 is the signal for accompanying measurement equipment 4000 to transmit or radiating antenna group
2000 signals transmitted wirelessly by wireless Devices to test 1000 transmitted.Demultiplexer 3110 for example selects power divider.
First signal generator 3120, second signal generator 3130, according to respective input signal (i.e. demultiplexer
The two paths of signals of 3110 outputs) export the signal that two-way phase and amplitude are all different, the i.e. different multipath signal of generation two-way.
That is, the first signal generator 3120, second signal generator 3130 mainly carry out amplitude and power reduction, phase to signal
The different treatment processes such as position delay, to export the signal that two-way phase and amplitude are all different.
Above-mentioned first signal generator 3120 specifically includes sequentially connected first sample of signal unit 3121, switch 3122
And first phase delay cell 3123.Wherein, one of input terminal of the first sample of signal unit 3121 is raw for the first signal
Grow up to be a useful person 3120 input terminal, the output end of the first sample of signal unit 3121 is the output end of the first signal generator 3120.
Specifically, the first sample of signal unit 3121 for example selects directional coupler.Switch 3122 and first phase are prolonged
Slow unit 3123 is controlled by test master 5000.Switch 3122 is high-speed switch, carries out the rate of open and close switching
The transmission requirement of simulation radio wave channel should be met.
So in above-mentioned first signal generator 3120, when the letter of input all the way for receiving the transmission of demultiplexer 3110
After number, which carries out at phase delay under the switching control of switch 3122 and by first phase delay cell 3123
After reason, eventually by the first sample of signal unit 3121 output to signal synthesizer 3150.
Above-mentioned second signal generator 3130 specifically includes sequentially connected second signal sampling unit 3131, attenuation units
3132, second phase delay cell 3133.Wherein, one of input terminal of second signal sampling unit 3131 is second signal
The input terminal of generator 3130, the output end of second signal sampling unit 3131 are the output end of second signal generator 3130.
Specifically, second signal sampling unit 3131 for example selects directional coupler.Attenuation units 3132 are for example selected
Programmable attenuator.Attenuation units 3132 and second phase delay cell 3133 are controlled by test master 5000.
So in above-mentioned second signal generator 3130, when the another way input for receiving the transmission of demultiplexer 3110
After signal, which carries out the treatment process different from the first signal generator 3120, and the specially input signal was both led to
Overdamping unit 3132 carries out power and amplitude fading, and passes through second phase delay cell 3133 and carry out phase delay, finally
Pass through the output of second signal sampling unit 3131 to circuit delay device 3140.
Circuit delay device 3140, the signal for exporting to second signal generator 3130 carry out delay process.
Signal synthesizer 3150, the signal for exporting the first signal generator 3120, circuit delay device 3140 merge
For signal all the way, and it is sent to attenuator 3200.Signal synthesizer 3150 for example selects power divider.
So, for above-mentioned mode emulator 3100, specific working principle are as follows: demultiplexer 3110
Input signal is separated into two paths of signals, which passes through the first signal generator 3120, second signal generator respectively
After 3130 processing, two-way phase and all different signal of amplitude are formed.Meanwhile it being formed after the processing of second signal generator 3130
Signal will also pass through circuit delay device 3140 carry out delay process.Finally, first signal is generated by signal synthesizer 3150
The signal formed after signal that device 3120 finally obtains, the processing of circuit delay device 3140 is overlapped, to complete radio wave
There are wireless signal transmission modeling processes when barrier for channel.
It is understood that the specific structure of mode emulator 3100 is not limited to a kind of above-mentioned situation, as long as can
Simulating radio wave channel, there are wireless signal transmission models when barrier.
Specifically, as shown in Figure 1, above-mentioned first enclosure space is provided by microwave dark room 6000.Microwave dark room 6000 is one
A standard-sized rectangle microwave darkroom.
Meanwhile in order to meet the propagation demand of the advanced technologies such as MIMO signal, microwave dark room 6000, which is provided with, has difference
The absorbing material of absorbability.In the present embodiment, absorbing material includes absorption flat plate 6100, inhales wave splitter 6200, inhales popin
One or more of cone 6300.In addition, above-mentioned different types of absorbing material is according to the difference for inhaling intensity of wave, it is regular
It is distributed in six planes of microwave dark room 6000, so that the reflection and absorption of electromagnetic wave are in equilibrium state, both met
The reliability and test data repeatability for thering is effect spread to meet the wireless signal measuring system again of MIMO signal.
Specifically, being additionally provided with rotating platform 7000 in above-mentioned microwave dark room 6000, and rotating platform 7000 is for placing nothing
Line Devices to test 1000.Rotating platform 7000 is made of the dielectric material of low dielectric simultaneously, to avoid to wireless Devices to test
1000 interfere.Certainly, wireless Devices to test 1000 is not limited to be placed in a kind of this form of rotating platform 7000, can be with it
His mode is placed in microwave dark room 6000, as long as can be with 2000 normal communication of radiating antenna group.
Specifically, as shown in Figure 1, the second enclosure space is provided by shielded box 8000, and interior be equipped with of shielded box 8000 inhales wave
Plate 6100.The shielded box 8000 and the function having the same of microwave dark room 6000.
It is understood that the first enclosure space, the second enclosure space are not limited to a kind of above-mentioned set-up mode, as long as can
Has a condition of free space, such as the first enclosure space, the second enclosure space are respectively in turn by shielded box 8000, micro-
Wave darkroom 6000 provides.
Specifically, as shown in figure 3, it includes radio frequency switch 4200 and several in different operating frequency range for accompanying measurement equipment 4000
Reception/launch terminal 4100.Each reception/launch terminal 4100 is switched on or switched off by radio frequency switch 4200 to be propagated with signal
The connection of simulator 3000.Therefore, each reception/launch terminal 4100 can be carried out as desired by radio frequency switch 4200
Free switching, to meet different testing requirements.
Wherein, reception/launch terminal 4100 can not only emit signal but also can receive signal, and reception/launch terminal
4100 quantity should be identical as the quantity of antenna in radiating antenna group 2000.Receive simultaneously/launch terminal 4100 is installed on test
On main controller 5000.Radio frequency switch 4200 is controlled by test master 5000.
In addition, in the present embodiment, subtest controller is additionally provided in the first enclosure space, for providing test program
Operation, test content and test data operation etc..Certainly, in other embodiments, the function that subtest controller is realized
It can also directly be realized by test master 5000.
In conclusion in wireless signal measuring system provided by the embodiment, wireless Devices to test 1000 (such as wireless aps)
It is empty with accompanying measurement equipment 4000 (such as wireless STA) to be located at the first closing for being provided by microwave dark room 6000 and shielded box 8000
Between, in the second enclosure space, and antenna couple by way of communicated.Wherein, microwave dark room 6000 and shielded box
8000 provide no external interference and transonic test environment.On this basis, microwave dark room 6000 and shielded box 8000 it
Between be provided with signal propagate simulator 3000, corresponding mould shape parameter is inputted by software, calculating simulation obtains spacing wireless
The propagation path and mode of signal, to reach test effect consistent with actual test field.Therefore, the wireless signal measuring system
Properties of product detection is not only facilitated, testing efficiency is also improved.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of wireless signal measuring system characterized by comprising positioned at the wireless Devices to test and spoke of the first enclosure space
It penetrates antenna sets, accompany measurement equipment and test master, positioned at first enclosure space and the second envelope positioned at the second enclosure space
The signal closed between space propagates simulator；First enclosure space, the second enclosure space are provided with the item of free space
Part；The radiating antenna group, signal propagate simulator, measurement equipment are accompanied to pass sequentially through radio-frequency cable connection；It is described wireless to be measured
Equipment includes antenna, and the radiating antenna group is located at the radiated far field of wireless Devices to test antenna, and the radiating antenna group is
Accompany the antenna of measurement equipment one end；It is described that measurement equipment is accompanied also to connect with test master；
The signal propagates simulator, is used for analog wireless signals propagation model, and by the radiating antenna group wireless receiving
The data that are sent by wireless Devices to test be sent to after channel simulation processing that measurement equipment or the signal is accompanied to propagate simulation
The data that device accompanies measurement equipment to transmit for described carry out after channel simulation processing by radiating antenna group be wirelessly transmitted to wirelessly to
Measurement equipment.
2. wireless signal measuring system according to claim 1, which is characterized in that the signal propagates simulator and includes
Mode emulator and attenuator interconnected；The mode emulator exists for simulating radio wave channel
Wireless signal transmission model when barrier；The attenuator, for simulating the signal propagation losses of free space.
3. wireless signal measuring system according to claim 2, which is characterized in that the mode emulator includes letter
Number separator, the first signal generator, second signal generator, circuit delay device and signal synthesizer；
The demultiplexer for the input signal of the mode emulator to be separated into two paths of signals, and passes respectively
It send into the first signal generator and second signal generator；First signal generator, second signal generator, according to each
From input signal export the signal that two-way phase and amplitude be all different respectively；The circuit delay device, for described the
The signal of binary signal generator output carries out delay process；The signal synthesizer is used for first signal generator, line
The signal of road delayer output merges into signal all the way, and is sent to the attenuator.
4. wireless signal measuring system according to claim 3, which is characterized in that first signal generator include according to
The first sample of signal unit, switch and the first phase delay cell of secondary connection；Wherein the one of the first sample of signal unit
A input terminal is the input terminal of first signal generator, and the output end of the first sample of signal unit is first letter
The output end of number generator；
The output end of the first sample of signal unit is that the output end of first signal generator includes: to receive signal point
From device transmission input signal all the way after, the input signal under the switching control of switch and by first phase delay cell into
After the processing of row phase delay, exported by the first sample of signal unit to signal synthesizer.
5. wireless signal measuring system according to claim 3, which is characterized in that the second signal generator include according to
The second signal sampling unit of secondary connection, attenuation units, second phase delay cell；The second signal sampling unit is wherein
One input terminal is the input terminal of the second signal generator, and the output end of the second signal sampling unit is described second
The output end of signal generator；
The output end of the second signal sampling unit is that the output end of the second signal generator includes: to receive signal point
After input signal all the way from device transmission, which carries out power and amplitude fading by attenuation units, and passes through second
Phase delay cell carries out phase delay, is exported by second signal sampling unit to signal synthesizer.
6. wireless signal measuring system according to claim 1, which is characterized in that first enclosure space is dark by microwave
Room provides.
7. wireless signal measuring system according to claim 6, which is characterized in that wave material is inhaled in setting in the microwave dark room
Material, and the absorbing material includes one or more of absorption flat plate, suction wave splitter, suction popin cone.
8. wireless signal measuring system according to claim 6, which is characterized in that be equipped with rotary flat in the microwave dark room
Platform, and the rotating platform is for placing the wireless Devices to test.
9. according to claim 1 to wireless signal measuring system described in any claim in 8, which is characterized in that described
Two enclosure spaces are provided by shielded box, and absorption flat plate is equipped in the shielded box.
10. according to claim 1 to wireless signal measuring system described in any claim in 8, which is characterized in that described to accompany
Measurement equipment includes radio frequency switch and several reception/launch terminals in different operating frequency range；Each reception/launch terminal
It is switched on or switched off the connection that simulator is propagated with the signal by the radio frequency switch.
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| CN108847899A (en) * | 2018-06-19 | 2018-11-20 | Oppo广东移动通信有限公司 | Electronic equipment radio communication Performance Test System, method, device and equipment |
| SE542291C2 (en) * | 2018-08-14 | 2020-04-07 | Bluetest Ab | A measurement device for antenna systems |
| CN111245528B (en) * | 2020-01-13 | 2022-04-29 | 普联国际有限公司 | Antenna detection method and antenna detection system based on channel state information |
| CN113364534B (en) * | 2020-03-04 | 2023-05-02 | 佛山市云米电器科技有限公司 | Antenna test method, device and computer readable storage medium |
| CN111600666A (en) * | 2020-05-13 | 2020-08-28 | 深圳市共进电子股份有限公司 | Wireless communication simulation test system |
| CN113759178A (en) * | 2020-06-05 | 2021-12-07 | 柯彦旭 | Electromagnetic wave shielding box and detection method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136873A (en) * | 2010-01-25 | 2011-07-27 | 中兴通讯股份有限公司 | Antenna testing system and antenna testing method |
| CN102148648A (en) * | 2010-02-05 | 2011-08-10 | 中兴通讯股份有限公司 | Space radio-frequency performance test method and system in multi-antenna system |
| CN102158873A (en) * | 2010-02-12 | 2011-08-17 | 中兴通讯股份有限公司 | Multi-antenna system based method and system for testing over the air (OTA) performance |
| WO2014086268A1 (en) * | 2012-12-03 | 2014-06-12 | Tri-L Solutions Inc. | Method and device for testing performance of wireless terminal |
| CN205647531U (en) * | 2016-03-15 | 2016-10-12 | 深圳市共进电子股份有限公司 | Radio signal measurement system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136873A (en) * | 2010-01-25 | 2011-07-27 | 中兴通讯股份有限公司 | Antenna testing system and antenna testing method |
| CN102148648A (en) * | 2010-02-05 | 2011-08-10 | 中兴通讯股份有限公司 | Space radio-frequency performance test method and system in multi-antenna system |
| CN102158873A (en) * | 2010-02-12 | 2011-08-17 | 中兴通讯股份有限公司 | Multi-antenna system based method and system for testing over the air (OTA) performance |
| WO2014086268A1 (en) * | 2012-12-03 | 2014-06-12 | Tri-L Solutions Inc. | Method and device for testing performance of wireless terminal |
| CN205647531U (en) * | 2016-03-15 | 2016-10-12 | 深圳市共进电子股份有限公司 | Radio signal measurement system |
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