CN105553579B - For the high-precision channel test clouds terrace system of millimeter wave channel test - Google Patents
For the high-precision channel test clouds terrace system of millimeter wave channel test Download PDFInfo
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- CN105553579B CN105553579B CN201510859509.6A CN201510859509A CN105553579B CN 105553579 B CN105553579 B CN 105553579B CN 201510859509 A CN201510859509 A CN 201510859509A CN 105553579 B CN105553579 B CN 105553579B
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- axis
- channel test
- platform
- millimeter wave
- loaded pallet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
Abstract
The invention belongs to wireless communication technology fields, relate generally to a kind of high-precision channel test clouds terrace system for millimeter wave channel test field.For the high-precision channel test clouds terrace system of millimeter wave channel test, including：Section bar support, hand elevator and azimuth axis, it is characterised in that：Further include loaded pallet and three-axis platform, the loaded pallet is responsible for carrying and sends and receives antenna feed, the three-axis platform is responsible for X-axis, Y-axis, the rotation in three axis orientation of Z axis, the section bar support is equipped with leveling lower margin, the hand elevator is installed on section bar support, and the azimuth axis is fixed on hand elevator, and the three-axis platform is fixed on azimuth axis, the loaded pallet is fixed on three-axis platform, and communication interface is equipped on the loaded pallet.The present invention by it is original it is fixed, manually carry out mobile holder and carry out mechanization and Programmed Design, so as to significantly solve the intelligent Problems of the precision problem and holder of the small scale channel measurement of millimeter wave in itself.
Description
Technical field
The invention belongs to wireless communication technology fields, relate generally to a kind of high-precision for millimeter wave channel test field
Channel test clouds terrace system.
Background technology
With demand of the people to the radio communication service of high-speed high-quality amount, the transmission rate in wireless technology is from most
First Kbit/s develops to Mbit/s, and the better wireless transmission of higher must be the trend of wireless technology development.It is and main at present
Wireless technology, for example ultra wide band (UWB) wireless technology and 802.11n standards highest can only also provide the rate of hundreds of Mbps,
Current wireless technology development demand cannot have been met.In addition, existing wireless technology so that frequency spectrum resource is more and more nervous,
Greatly limit the development of new technology.60GHz short-range communications technology up to counts the rate of gigabit due to being capable of providing, and provides and exempts from
The advantages such as the frequency spectrum resource of 7GHz bandwidth of license, become one of most potential alternative technique of future wireless technologies.
Federal Communications Commission (Federal Communications Commission, FCC) is near 60GHz
Frequency range marked off the up to frequency band without application of 7GHz, and the limitation of the transmission power of this frequency range is far from
Frequency range where UWB is stringent, this brings new selection for short distance high-speed radiocommunication.In the initial stage, due in milli
The device cost of meter wave frequency band is very high so that the application study in 60GHz frequency ranges is without very big attraction, and with CMOS
For device in the successful exploitation of this frequency range, people start sight to invest in this still undeveloped frequency range.
Relative to the short-distance wireless communication technology for being widely used at present and studying, such as WLAN, UWB, 60GHz frequency ranges
Wireless communication has outstanding feature.
Frequency range residing for millimeter wave is 30GHz-300GHz, and corresponding wavelength is 1mm-10mm.In 60GHz frequency ranges
The physical space propagation characteristic of millimeter-wave signal is compared with low-frequency range very big difference.This difference is mainly reflected in, signal
Propagation it is more directional, that is to say, that the quantity of multipath component substantially reduces.The diffraction poor performance of signal, multipath signal is more
More forms by reflection signal rather than by scattered signal；The path loss of synchronous signal is very big, and big path loss can give
Our communication distance, transmission power etc. bring very big influence.But big path loss is also beneficial to 60GHz short distances
From the interference that communication reduces neighboring user.Such as, the interference between user in not chummery can substantially reduce, this is conducive to carry
The number of users of high unit space.
In 50-70GHz frequency ranges, radio wave has more serious oxygen to decay, therefore, in the communication of endoatmosphere,
The 60GHz communication technologys are difficult to apply to the transmission services of long range.However, for indoor short distance communication, such as WLAN or point
To the streaming media of point, the oxygen influence brought that declines is smaller, and the oxygen of 100 meters of transmission ranges declines only 1.5dB, and same distance
Free space path loss be 108dB (assuming that using omnidirectional antenna).
More importantly it is reflectivity and penetrance of the signal to construction material for 60GHz indoor communications.
The ability that 60GHz signals penetrate some construction materials is poorer than low-band signal, and signal is difficult to penetrate wall from a room to pass
To another room.The test in University of California's Berkeley is wireless research center (BWRC) shows 60GHz signals wall and ground indoors
The loss of plate is up to 24dB.These all show：It is different from the WLAN applied at present, the unsuitable family's ring of 60GHz wireless systems
The application in border, because in this environment, a general WLAN base station can be several different users to share in entire house,
But the low penetration of 60GHz so that the high-speed communication across wall and floor is difficult to realize.However it is also worn just because of this height
Loss thoroughly so that the interference very little of adjacent room substantially increases frequency repeat utilization ratio.Almost each room can serve as one
Cell does not have to worry using all frequency ranges the interference of minizone.Meanwhile the multipath transmisstion of indoor channel also has very big change
Kind, even if using omnidirectional antenna, multi-path delay spread is also smaller than low-frequency range, and the path of multipath also want it is short very much because
Main multipath return comes from the object reflection of same room.
The fast development of smart mobile phone and mobile Internet business makes high band wide data business that explosive growth, operation be presented
Quotient's network will face increasing capacity pressure, indoor and hot spot region business proportion rapid development, network hotspot and blind
There is an urgent need for flexible deployment schemes to improve covering for point.At the same time, the growth of data traffic does not make the income of operator same
Step rationally increases, and flow is caused to increase therewith with the price scissors taken in.How network capacity is improved, it is growing to meet user
Data traffic requirement, while network construction and operation cost are reduced, it is all operator's problems faceds.
Under traditional network architecture, restrictive condition is relatively more, obtained including frequency spectrum resource and site property difficulty etc.,
Network can not cost-effectively handle a large amount of data service.Therefore the simple deployment way for building macro station has been difficult to cope with drastically
The data traffic requirement of growth.Small base station (Small Cell) can increase network capacity, successfully manage the network increasingly to increase sharply
Flow improves user's speed of surfing the Internet of macro base station edge cover area.Small base station deployment is flexibly and fast, moreover it is possible to WLAN
(WLAN) organic complementary brings best mobile broadband to experience with merging for user.The 4G epoch are arrived, the effect of small base station will be outstanding
It is for protrusion or even more important than 2G, 3G epoch.The reason is that the frequency range of 4G is higher, it is poor to the penetration power of building, and 4G
If the technology of itself causes the transmitted data rates that need to reach higher and may require that higher signal-to-noise ratio, therefore the depth of small base station
It is covered with accurate hot spot more efficient.Small base station networking and alloisomerism network (HetNet) are also therefore wide as current industry
General focus of attention.Relative to macro base station, small base station preferably can neatly dispose
Small station passback frequency range in, 60GHz due to its without mandates, high bandwidth, high carrier wave no signal pollute the advantages that
Show one's talent in frequency range to be selected, so the medium and long distance propagation characteristic of research 60GHz is particularly important, it particularly can at small station
It can establish in the case of returning outward indoors, the indoor and outdoor passback characteristic of research 60GHz frequency ranges becomes channel measurement
The most important thing.
Channel measurement is the effective means for studying channel fading characteristic.Propagation spy of the signal in wireless channel is substantially square
Formula is three kinds of modes of reflection, diffraction and scattering.It simultaneously also can be by path loss, shadow fading and multipath fading etc. due to channel
Complexity and time variation and the influence for causing attenuation loss.
While specific implementation channel test is carried out, the selection of measurement point directly influences the correctness of data, letter
The sampling of road characteristic whether having the characteristics that property, classify for fading characteristic in radio communication channel, can be by its channel measurement
Method is divided into large-scale decline and measures and multipath fading measurement.
Invention content
The present invention proposes that a kind of high-precision channel for millimeter wave channel test is surveyed to overcome deficiency of the prior art
Try clouds terrace system, by it is original it is fixed, manually carry out mobile holder and carry out mechanization and Programmed Design, so as to solve significantly
The intelligent Problems of the precision problem and holder of millimeter wave small scale channel measurement in itself.
For the high-precision channel test clouds terrace system of millimeter wave channel test, including：Section bar support, hand elevator and
Azimuth axis, it is characterised in that：Loaded pallet and three-axis platform are further included, the loaded pallet is responsible for carrying and sends and receives antenna
Feed, the three-axis platform are responsible for X-axis, and Y-axis, the rotation in three axis orientation of Z axis, the section bar support is equipped with leveling lower margin, described
Hand elevator is installed on section bar support, and the azimuth axis is fixed on hand elevator, the three-axis platform side of being fixed on
On the axis of position, the loaded pallet is fixed on three-axis platform, and communication interface is equipped on the loaded pallet.
Further, the maximum speed of the X-axis translation of the three-axis platform is 30mm/s, and the moving range of translation is less than etc.
In 15mm, the maximum speed of the Y-axis translation of the three-axis platform is 30mm/s, and the moving range of translation is less than or equal to 150mm, institute
The maximum speed for stating the Z axis translation of three-axis platform is 30mm/s, and the moving range of translation is less than or equal to 150mm.
Further, the azimuth axis can continuously rotate, and the bearing accuracy of the orientation rotation of the azimuth axis is 0.1 °,
The azimuthal velocity of the azimuth axis is 4 °/s.
Further, system overall load is less than or equal to 5Kg, and hand elevator range is 1m.
Further, the communication interface is serial ports.
The beneficial effects of the invention are as follows：
Realize high-precision X-axis when millimeter wave channel test is carried out, Z axis, the four axis movement of Y-axis and azimuth axis,
And serial port command can be sent using computer to realize distance and operate controllable.
Description of the drawings
Fig. 1 is millimeter wave channel measurement holder block schematic illustration.
Specific embodiment
With reference to embodiment and attached drawing, the technical solution that the present invention will be described in detail.
As shown in Figure 1：
For the high-precision channel test clouds terrace system of millimeter wave channel test, including：
The section bar support of equipment is used to support, hand elevator and the azimuth axis being installed on section bar support, section bar support
Upper outfit leveling lower margin, for adjusting system level.Section bar support selects aluminium section bar, and system overall load is less than or equal to 5Kg, is
System dead weight be less than or equal to 35Kg, can module dismounting, field is facilitated to use.Hand elevator range is 1m, available at any time
Adjust system altitude.
Azimuth axis is installed, the azimuth axis can continuously rotate, and bearing accuracy is 0.1 °, orientation speed on hand elevator
It spends for 4 °/s.
Three-axis platform is fixed on azimuth axis, and the three-axis platform is responsible for X-axis, Y-axis, the rotation in three axis orientation of Z axis.It is described
The maximum speed of the X-axis translation of three-axis platform is 30mm/s, and the moving range of translation is less than or equal to 15mm, the three-axis platform
The maximum speed of Y-axis translation is 30mm/s, and the moving range of translation is less than or equal to 150mm, the Z axis translation of the three-axis platform
Maximum speed is 30mm/s, and the moving range of translation is less than or equal to 150mm.
Loaded pallet is installed on three-axis platform.The loaded pallet is responsible for carrying and sends and receives antenna feed, described
Communication interface is installed on loaded pallet.The communication interface usually selects serial ports, and (DB9 interfaces can turn Serial Port Line company with USB
It connects).
Claims (2)
1. for the high-precision channel test clouds terrace system of millimeter wave channel test, including section bar support, hand elevator and side
Position axis, it is characterised in that：Loaded pallet and three-axis platform are further included, the loaded pallet is responsible for carrying and sends and receives antenna feed
Source, the three-axis platform are responsible for X-axis, Y-axis, the rotation in three axis orientation of Z axis, the section bar support outfit leveling lower margin, the hand
It shakes elevator to be installed on section bar support, the azimuth axis is fixed on hand elevator, and the three-axis platform is fixed on orientation
On axis, the loaded pallet is fixed on three-axis platform, and communication interface is equipped on the loaded pallet, the three-axis platform
The maximum speed of X-axis translation is 30mm/s, and the moving range of translation is less than or equal to 15mm, the Y-axis translation of the three-axis platform
Maximum speed is 30mm/s, and the moving range of translation is less than or equal to 150mm, the maximum speed of the Z axis translation of the three-axis platform
For 30mm/s, the moving range of translation is less than or equal to 150mm, and the azimuth axis can continuously rotate, the orientation of the azimuth axis
The bearing accuracy of rotation is 0.1 °, and the azimuthal velocity of the azimuth axis is 4 °/s, wherein, system overall load is less than or equal to 5Kg,
Hand elevator range is 1m.
2. the high-precision channel test clouds terrace system according to claim 1 for millimeter wave channel test, feature exists
In：The communication interface is serial ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859509.6A CN105553579B (en) | 2015-11-30 | 2015-11-30 | For the high-precision channel test clouds terrace system of millimeter wave channel test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510859509.6A CN105553579B (en) | 2015-11-30 | 2015-11-30 | For the high-precision channel test clouds terrace system of millimeter wave channel test |
Publications (2)
| Publication Number | Publication Date |
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| CN105553579A CN105553579A (en) | 2016-05-04 |
| CN105553579B true CN105553579B (en) | 2018-07-06 |
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| CN201510859509.6A Expired - Fee Related CN105553579B (en) | 2015-11-30 | 2015-11-30 | For the high-precision channel test clouds terrace system of millimeter wave channel test |
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| CN107941088B (en) * | 2017-07-19 | 2019-09-20 | 芜湖博高光电科技股份有限公司 | A kind of quick detector high tower test system in end |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101789831A (en) * | 2009-12-25 | 2010-07-28 | 上海磁浮交通发展有限公司 | Millimeter wave communication test system |
| CN201876472U (en) * | 2010-08-23 | 2011-06-22 | 四川九洲电器集团有限责任公司 | Millimeter wave transmitter-receiver (TR) component parameter test clamp device |
| CN202453375U (en) * | 2011-08-04 | 2012-09-26 | 苏州易特诺科技股份有限公司 | Millimeter wave circuit device testing clamp |
| CN202583331U (en) * | 2012-04-13 | 2012-12-05 | 河北威赛特科技有限公司 | Antenna comprehensive test revolving table |
| DE102012105923B4 (en) * | 2012-07-03 | 2014-02-27 | Sd Mechatronik Gmbh | Apparatus and method for measuring abrasion |
| CN103176175B (en) * | 2013-03-19 | 2014-11-19 | 沈阳理工大学 | Liftable four-freedom-degree millimeter wave detecting device testing platform |
| CN103196483B (en) * | 2013-03-19 | 2015-04-08 | 沈阳理工大学 | Double-bracket five-degree-of-freedom millimeter wave detection device test platform |
| CN104122442A (en) * | 2014-07-24 | 2014-10-29 | 中国科学院上海微系统与信息技术研究所 | Millimeter wave free oscillation source automatic test system and method |
| CN204142912U (en) * | 2014-10-11 | 2015-02-04 | 中国电子科技集团公司第十三研究所 | The reliability test system of millimeter-wave monolithic circuit chip |
| CN104501971A (en) * | 2015-01-05 | 2015-04-08 | 合肥驼峰电子科技发展有限公司 | Simple millimeter-wave general-purpose tester |
| CN105004228B (en) * | 2015-08-11 | 2016-07-06 | 成都天奥测控技术有限公司 | Millimeter wave influence fuse detector front end method of testing and tester |
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