CN202374275U - Two-stage-based automatic calibration system for frequency shift repeater - Google Patents
Two-stage-based automatic calibration system for frequency shift repeater Download PDFInfo
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- CN202374275U CN202374275U CN2011205544916U CN201120554491U CN202374275U CN 202374275 U CN202374275 U CN 202374275U CN 2011205544916 U CN2011205544916 U CN 2011205544916U CN 201120554491 U CN201120554491 U CN 201120554491U CN 202374275 U CN202374275 U CN 202374275U
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Abstract
The utility model relates to the field of mobile communication, in particular to a two-stage-based automatic calibration system for a frequency shift repeater. The system comprises a computer with a two-stage-based automatic calibration system, the repeater, a power divider, a circulator, a frequency spectrograph and a signal source, wherein the repeater is connected with the computer; the power divider is connected with the repeater; the circulator is connected with the power divider; and the frequency spectrograph and the signal source are connected with the computer respectively, and communicate with each other through the circulator. According to the automatic calibration system for the frequency shift repeater, calibration time is greatly shortened, equipment cost is reduced, the research, development and production cycle of the repeater is shortened, the competitiveness of the product is improved, a few calibration workers are required, technical requirements on the calibration workers are low, and manpower cost is saved.
Description
Technical field
The utility model relates to a kind of calibration calibration system of the GSM of being applied to moving communicating field, particularly a kind of frequency-shift repeater auto-scaling calibration system based on two-part.
Background technology
Frequency-shift repeater is had relatively high expectations to the link gain control precision; Because of individual devices gain difference such as the master control borad in the link, power amplifier module, cavity body filters, need obtain complete machine link actual gain and target gain difference through calibration, modifying factor promptly gains;, calibrates by complete machine after getting into operating state; That is,, make link gain reach target gain according to gain modifying factor adjustment link gain.
In order to guarantee repeater link gain calibration and the normal operation of DPD (digital pre-distortion); Need through the frequency-shift repeater calibration, accomplish subsystem repeater after assembling is accomplished near/the obtaining of gain modifying factor between each link gain of remote termination complete machine and target gain.At the research and development initial stage, all adopt manually calibration, manually calibration is higher to calibration personnel's specification requirement; Must calibrate flow process to the repeater has deep understanding, and must possess abundant radio frequency testing knowledge, simultaneously because test process is loaded down with trivial details; Record data are various, need the two people completion of cooperating usually.According to statistics, every equipment calibration needs one day time of two staff.
Complete machine each link gain in repeater comprises rf gain and intermediate-frequency gain two parts, can't promptly can't distinguish independently intermediate-frequency gain and rf gain are calibrated, calibrated two parts of link gain from physically separating in the real work.Given this; Obtain the overall gain modifying factor of each frequency, prior art is through two-dimentional look-up table calibration, promptly; In the bandwidth that equipment is supported, select N specific frequency earlier; Obtain the modifying factor of each IF spot and RF spot correspondence during production through two dimension calibration, fixed intermediate frequency one by one when promptly calibrating, the gain modifying factor of different radio frequency frequency when mobile local oscillator is obtained this IF spot; After complete machine got into operating state, IF spot index and the RF spot index corresponding according to each frequency obtained corresponding gain modifying factor.Two dimension look-up table precision is high, but need obtain N*N gain modifying factor, and test data is various, influences production efficiency, has increased production cost.
The utility model content
The purpose of the utility model is: to the problems referred to above of prior art existence; A kind of frequency-shift repeater auto-scaling calibration system based on two-part is provided; This auto-scaling calibration system has reduced the complexity of calibration calibration, make the repeater near/the remote termination R&D cycle is short, production efficiency is high.
To achieve these goals, the technical scheme of the utility model employing is:
A kind of frequency-shift repeater auto-scaling calibration system based on two-part; Comprise the computer that is equipped with based on the auto-scaling calibration system of two-part; The repeater that is connected with computer; The power divider that is connected with the repeater (abbreviation power splitter); Frequency spectrograph that the circulator that is connected with power divider is connected with computer respectively (VSA) and signal source (VSG), said frequency spectrograph and signal source are interconnected through circulator, and said repeater, frequency spectrograph and signal source all are controlled by the auto-scaling calibration system based on two-part in the computer.
As the preferred version of the utility model, said computer is connected with repeater, frequency spectrograph and signal source through hub (HUB).
As the preferred version of the utility model, said circulator, power divider and repeater are provided with the radio frequency mouth, and said circulator is connected with power divider through radio frequency line, and said power divider is connected with the repeater through radio frequency line.
As the preferred version of the utility model, be connected with attenuator between said circulator and the power divider.
Compared with prior art, the utlity model has following beneficial effect:
1, reduced time cost; The auto-scaling calibration system based on two-part in the computer makes amount of test data reduce to 2N from N*N, and the calibration time shortens greatly, has reduced the hold facility cost; Shorten repeater research and development, production cycle, improved competitiveness of product;
2, reduced human cost, repeater auto-scaling calibration system needs less calibration personnel, has reduced the specification requirement to the calibration personnel simultaneously, the training cost of having practiced thrift personnel.
Description of drawings
Fig. 1 is the structural representation block diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1; A kind of frequency-shift repeater auto-scaling calibration system that present embodiment is enumerated based on two-part; Comprise the computer that is equipped with based on the auto-scaling calibration system of two-part, the repeater that is connected with computer, the power divider that is connected with the repeater (abbreviation power splitter); Frequency spectrograph that the circulator that is connected with power divider is connected with computer respectively (VSA) and signal source (VSG); Said frequency spectrograph and signal source are interconnected through circulator, and said repeater, frequency spectrograph and signal source all are controlled by the auto-scaling calibration system based on two-part in the computer, and said computer is connected with repeater, frequency spectrograph and signal source through hub (HUB); Said circulator is connected with power divider through radio frequency line; Said power divider is connected with the repeater through radio frequency line, is connected with attenuator between said circulator and the power splitter, and power supply is inserted in the repeater.
Before the auto-scaling calibration system of the utility model is started working, equipment to be tested is connected the path loss between measuring-signal source and frequency spectrograph and the equipment to be tested with the repeater.Its method is to measure the path loss of frequency spectrograph to each port corresponding band of equipment respectively with signal source and frequency spectrograph again to the path loss of each port corresponding band of equipment in the measuring-signal source respectively with signal source and frequency spectrograph earlier; Record auto-scaling calibration system to corresponding circuit loss value based on two-part.
After the auto-scaling calibration system of the utility model is started working; Configure each device parameters in the auto-scaling calibration system in computer based on two-part; Select frequency-shift repeater auto-scaling calibration function; Carry out auto-scaling, the gain calibration of the meeting of auto-scaling calibration system automatic completion equipment transmission channel link, feedback path link and receive path link, and calibration back calibration verification.Its workflow is:
On the one hand, the auto-scaling calibration system based on two-part in the computer triggers the repeater and sends descending rate-aided signal, triggers the power that frequency spectrograph is gathered descending rate-aided signal simultaneously, and the data that collect are transferred to computer through HUB; On the other hand, send up rate-aided signal, trigger the power that up rate-aided signal is gathered in the repeater simultaneously, and the data that collect are transferred to computer through HUB based on the auto-scaling calibration system trigger signal source of two-part; In the computer based on the auto-scaling calibration system of two-part after getting access to sampled data, calculate the gain modifying factor of corresponding frequency band frequency, adopt two-part gain calibration calibration steps to obtain the data of modifying factor again.
In the frequency-shift repeater auto-scaling calibration system of the utility model based on two-part, the function of each capital equipment is following:
One, computer
1, sends rate-aided signal through HUB control signal source, read the frequency spectrograph test data;
2, receive power through HUB control repeater, trigger the repeater and send descending transmission rate-aided signal from the rate-aided signal of signal source;
3, record and calculating test data dispose the modifying factor of obtaining to the repeater, the accuracy of checking calibration.
Two, signal source and frequency spectrograph
1, signal source is that the repeater provides up test data (rate-aided signal).
2, the power output of the rate-aided signal of frequency spectrograph test repeater transmission.
Three, circulator, attenuator and power divider
1, circulator has solved the directivity of frequency spectrograph and signal source receiving and transmitting signal, thus the protection instrument.
2, attenuator protection frequency spectrograph and signal source are not influenced performance by high-power signal, even damage.
3, power divider solves the connectivity problem of two passage calibration tests.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (4)
1. frequency-shift repeater auto-scaling calibration system based on two-part; It is characterized in that; This auto-scaling calibration system comprises computer, repeater, power divider, circulator, frequency spectrograph and the signal source that is equipped with based on the auto-scaling calibration system of two-part, and wherein, said repeater is connected with computer; Said power divider is connected with the repeater; Said circulator is connected with power divider, and said frequency spectrograph is connected with computer respectively with signal source, and said frequency spectrograph and signal source are interconnected through circulator.
2. the frequency-shift repeater auto-scaling calibration system based on two-part according to claim 1 is characterized in that, said computer is connected with repeater, frequency spectrograph and signal source respectively through hub.
3. the frequency-shift repeater auto-scaling calibration system based on two-part according to claim 2; It is characterized in that; Said circulator, power divider and repeater are provided with the radio frequency mouth; Circulator is connected with power divider through radio frequency line, and said power divider is connected with the repeater through radio frequency line.
4. the frequency-shift repeater auto-scaling calibration system based on two-part according to claim 3 is characterized in that, is connected with attenuator between said circulator and the power divider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205544916U CN202374275U (en) | 2011-12-27 | 2011-12-27 | Two-stage-based automatic calibration system for frequency shift repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205544916U CN202374275U (en) | 2011-12-27 | 2011-12-27 | Two-stage-based automatic calibration system for frequency shift repeater |
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| Publication Number | Publication Date |
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| CN202374275U true CN202374275U (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205544916U Expired - Fee Related CN202374275U (en) | 2011-12-27 | 2011-12-27 | Two-stage-based automatic calibration system for frequency shift repeater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510316A (en) * | 2011-12-27 | 2012-06-20 | 成都芯通科技股份有限公司 | Two-stage based automatic calibration and correction method and system for repeater |
| CN104467986A (en) * | 2013-09-22 | 2015-03-25 | 深圳市共进电子股份有限公司 | Radio frequency equipment calibration method |
| CN105548934A (en) * | 2016-01-04 | 2016-05-04 | 上海创远仪器技术股份有限公司 | Method for realizing rapid power automatic calibration of frequency spectrometer |
-
2011
- 2011-12-27 CN CN2011205544916U patent/CN202374275U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510316A (en) * | 2011-12-27 | 2012-06-20 | 成都芯通科技股份有限公司 | Two-stage based automatic calibration and correction method and system for repeater |
| CN102510316B (en) * | 2011-12-27 | 2013-11-06 | 成都芯通科技股份有限公司 | Two-stage based automatic calibration and correction method and system for repeater |
| CN104467986A (en) * | 2013-09-22 | 2015-03-25 | 深圳市共进电子股份有限公司 | Radio frequency equipment calibration method |
| CN104467986B (en) * | 2013-09-22 | 2019-01-25 | 深圳市共进电子股份有限公司 | Radio-frequency apparatus calibration method |
| CN105548934A (en) * | 2016-01-04 | 2016-05-04 | 上海创远仪器技术股份有限公司 | Method for realizing rapid power automatic calibration of frequency spectrometer |
| CN105548934B (en) * | 2016-01-04 | 2018-07-13 | 上海创远仪器技术股份有限公司 | The method for realizing fast power auto-scaling for frequency spectrograph |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20131227 |