CN1346541A - Method and system for tuning resonance modules - Google Patents
Method and system for tuning resonance modules Download PDFInfo
- Publication number
- CN1346541A CN1346541A CN 00806101 CN00806101A CN1346541A CN 1346541 A CN1346541 A CN 1346541A CN 00806101 CN00806101 CN 00806101 CN 00806101 A CN00806101 A CN 00806101A CN 1346541 A CN1346541 A CN 1346541A
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- Prior art keywords
- signal
- resonance modules
- analog
- main
- tuning
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/16—Automatic frequency control where the frequency control is accomplished by mechanical means, e.g. by a motor
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Transmitters (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Selective Calling Equipment (AREA)
Abstract
A method and system involving determination of signal response of a plurality of tunable resonance modules; sensing at least a first primary analogue signal from a first one of said transmitter signals; analog-to-digital converting said first primary analogue signal to form a first digital signal; performing time-discrete operations on said first primary digital signal to determine a first primary signal quantity; comparing sensed signal quantities to form a discrepancy quantity, comparing said discrepancy quantity to said signal response to determine a tuning vector; actuating said tuning means of said first resonance module by said tuning vector to obtain resonance therein for said first transmitter signal; and repetition for each module and for obtaining fed-back tuning.
Description
The field of the invention and background
The present invention relates to a kind of method and system, be used for a plurality of resonance modules in the tuning for example wireless base station of feedback tuning ring, each resonance modules has tuner, transmitter connects and is connected with antenna.
This structure that is used for tuning resonance modules discloses at disclosed PCT application PCT/SE92/0004 and PCT/SE97/01125.These publications relate to the prior art of using typical fields of the present invention.Here incorporate them into as a reference.
Resonance modules in the above-mentioned file comprises resonant cavity and resonant body, and the position of resonant body can be by the motor adjustment, with the resonance frequency of control resonance modules.As long as have phase difference between the high frequency input and output signal of resonance modules, this structure is just adjusted the position of resonant body to reduce phase difference.
Wherein a kind of structure of these prior aries comprises the voltage controlled oscillator that produces high-frequency signal, this high-frequency signal respectively in first and second frequency mixers with input signal and output signal mixing.Therefore, form two low frequency signals, the phase difference of these two low frequency signals is measuring of resonance modules off resonance.Therefore, resonance modules by motor be tuned to correct resonance frequency, this resonance frequency is the frequency of resonance modules input signal.But this voltage controlled oscillator is relative complex and expensive assembly, need have high dynamic characteristic, because must scan relative wider frequency with the tuning methods of prior art.
In the another kind of structure of these prior aries, removed voltage controlled oscillator, but this system and method still relies on the radio frequency component of suitable big figure and other similar assembly, that these assemblies comprise inherently is aging, drift and tolerance.In order to provide and to keep high-performance, a kind of like this equipment becomes relatively costly.
Content of the present invention
The object of the present invention is to provide a kind of method that is used for the tuning module of shaking, this method eliminated that the RF assembly has problem, for example aging, drift and tolerance.Another object of the present invention is to provide a kind of effective and accurate method, wherein a plurality of resonance modules can the order process or parallel procedure tuning, wherein multiplexingly can be used for reducing required circuit and obtain being easy to general hardware platform different frequency bands and access method configuration, and provide a kind of effectively and the system of cost effect, be used for tuning resonance modules, especially for realizing the method according to this invention.
Reach these and other objects and address the above problem according to the method and system of appended claims.
On the transmitter similarly the high frequency input and output signal is connected with antenna sensed be directly changed into digital form, handle at digital signal processor being used for.Signal according to these two kinds of digital translation is determined tuning vector for each resonance modules.A corresponding tuning vector is used each tuner.This process repeats continuously, and provides feedback control loop for each resonance modules.
A special benefits of the inventive method and system is that they provide a kind of possibility.Promptly for example when communication standard is changed or expands, system self will check its signal environment and adapt to it.
The inventive method and system are applicable to the resonance modules of any kind, comprise, but are not limited to cavity resonator, half-wave or quarter-wave resonator and guided wave resonator.
In addition, the inventive method and system can be relatively at two or more signals of diverse location sensing, for example original (S1) of sensing, inner (S2), reflection (S3) and antenna (S4) signal, and/or at the diverse location of resonator tuner and one or more these signals at different time point sensings.
In dependent claims and following detailed, illustrated further favourable development of the present invention.
The Short Description of accompanying drawing
Fig. 1 represents the block diagram of resonance modules tuning system, and this system comprises that a plurality of suitable sense position and being used to that is connected to the A/D converter device through a suitable multiplexer controls the digital signal processor of the tuner of resonance modules.
First embodiment of Fig. 2 presentation graphs 1 tuning system, it comprises multiplexer and general A/D converter.
Second embodiment of Fig. 3 presentation graphs 1 tuning system, it comprises independent A/D converter.
The description of the preferred embodiment of the present invention
With reference to Fig. 1, represented to be used for for example individual signals link (with reference to PCT/SE97/01125) of many signal combiners unit of PCS mobile telephone system base station.In the embodiments of the invention, this combiner unit can comprise four tunable resonance modules, and each module arrangement becomes a side to be connected to the output of transmitter separately through separately isolator, and opposite side is connected to public transmitting antenna through phasing network.
The improvement subsystem that Fig. 1 is used for tuning first resonance modules 1 comprise have tuner 3, transmitter connects 4 and is connected 5 tunable resonator 2 with antenna.This system further comprises isolator 6 and the transducer P3 that comprises two circulator elements, and this transducer P3 is used for sensing arrives resonance modules 1 from the transmitter signal T1 of transmitter (not shown), through isolator 6 transmitter connection 4.Transducer P3 in the isolator 6 produces the input signal S3 that comes down to sub-fraction transmitter signal T1.
Input signal 53 is fed to sampler and analog to digital converter (ADC) 8 through first multiplexer (MUX1) 7, will be further described below its sequence of operation, and analog to digital converter (ADC) 8 is fed to digital signal processor (DSP) 9 with the signal of digital form.DSP9 handles this digital signal and therefore calculates a tuning vector, and this vector comprises distance and the directional information that moves this tuner 3.DSP9 transmits control signal C1 to obtain the tuning setting of hope, i.e. the resonance frequency of resonance modules 1 hope to tuner.For tuning vector, DSP9 can specify a tuning speed and quicken to start tuner 3 in addition.
This subsystem can comprise another transducer P2 that is arranged in resonator 2 inside, is used for sensing aerial signal A1 or represents the amount of this signal.This sensed signal S2 be fed to DSP9 through MUX17 and ADC8, with signal S3 relatively, to determine relative phase difference.This phase difference is the measuring of relative difference between the at present just tuning frequency of transmitter signal T1 and resonance modules.Signal S2 comes down to sub-fraction aerial signal A1.Perhaps, output signal can be used to replace the signal S4 of signal S2 by transducer P4 sensing in antenna connection 5 with generation.But in this case, the signal that produces from another transmitter (not shown) may be bigger problem.In desirable tuning resonance modules, transmitter signal T1 and the phase difference between the aerial signal A1 in the antenna connection 5 that transmitter connects on 4 will be zero (when considering the compensating signal transmission).
Certainly, the difference of the real time between the measured value is understood by DSP and is determined.The order of the connection signal (S1-S4) of MUX17 is not very crucial for measuring principle.
Describing two kinds of different modes with reference to Fig. 2 and Fig. 3 respectively below estimates difference between the main and secondary signal to be used for determining tuning vector.These examples comprise the estimated signal respective amount.But another possible amount is a signal amplitude.
In Fig. 2, represent main embodiment shown in Figure 1 in more detail.When the operation of DSP9 control MUX17, the S1 that obtains from transmitter signal T1 and be fed to MUX17 and among ADC8, convert digital form one at a time to from the inferior signal S2 that aerial signal A1 obtains.Must consider the time difference between sample value when multiplexing.
If the time very short (order of magnitude of 1/Fs, wherein Fs is the sampling frequency of ADC) between sampling S1 and the S2, might ignore any phase change in the signal that phase modulated causes.The phase delay that compensates (with traditional method) then with multiplexing in change-over period proportional.
If chronic (the multiplexing change-over period is in fact greater than 1/Fs) between sampling S1 and the S2 should estimate that then the phase modulation in the signal changes to compensate it.This mainly utilizes traditional Forecasting Methodology of sample value S1 to carry out, but also can be feedback sample value S2.The delay of the total phase place that compensates then with multiplexing in change-over period and phase modulation be varied to ratio.
For easy to understand, will operation among the DSP9 more fully be described for the described situation of Fig. 3, wherein main and secondary signal S1 and S2 sample simultaneously and change at independent ADC10 and ADC11 respectively.Different step in the DSP operation is:
The carrier frequency of estimated signal S1 (=2Fc).This estimated value of mark.This step is realized by discrete Fourier transform.
2. if interference signal occurs near signal S2, then to use suitable band pass filter and remove sort signal, this filter has the estimated value of system and the characteristic that design parameter is determined.Signal S1 can be filtered by identical or similar filter, changes S1 to change the identical method of signal S2 in the filtering.This has eliminated any unnecessary filtering influence when comparing S1 and S2.
3. the relative phase of the main and secondary signal after the estimation filtering.This preferably uses the method for discrete Fourier transform.
4. according to the result of step 1-3 and the functional mode of resonance modules, can change the filter function of resonator module now according to S1 and the proportional tuning vector of S2 relative phase.This tuner starts through the control output of DSP.
When using tuning vector, the result of step 1-3 can compare with desired value.
In order to obtain identical with Fig. 2 in essence performance, need the high sample rate of twice at least in the solution of Fig. 2 with Fig. 3 solution.On the other hand, the multiplexing number that reduces required analog to digital converter.
In described embodiment, be subjected to carrying out the adjustment of first resonance modules, by the tuned cell in the resonator that moves resonance modules through mechanical linkages from the stepping motor of the signal C1 of DSP9 control.Motor itself can be provided with a limit to the adjustment speed of resonance modules.
Though described the present invention in conjunction with the preferred embodiments.Be to be understood that the spirit and scope of the present invention that to make various modifications and not depart from the appended claims definition.Therefore, the present invention incorporates any system that is used for implementation method claim institute define method into.Though disclosed this method for optimizing, clearly, the mode of measured value that is combined in one or more unlike signal sense position P1, P2, P3, P4 (or other) in the scope of the invention is more than what clearly explain here.
Claims (13)
1. method, be used for by antenna of corresponding a plurality of tunable resonance modules combinations, from a plurality of transmitter signals of the corresponding a plurality of transmitting sets that are operable in variable carrier frequency with comprise the signal processing apparatus of storage arrangement, each described resonance modules has tuner, transmitter connects and is connected with antenna, and described method comprises step:
(a) determine the signal response of described tunable resonance modules,
(b) with the information stores of described signal response in described storage arrangement,
(c) from first of described transmitter signal, draw the first main analog signal,
(d) the analog-to-digital conversion described first main analog signal, forming first main digital signal,
(e) select the additional first main analog signal of analog signal for the first time,
(f) from described first described transmitter signal, draw described first time of analog signal,
(g) the analog-to-digital conversion described first time of analog signal, with the formation digital signal first time,
(h) the first main analog signal is carried out time-discrete operation with definite first main signal amount,
(i) to described first time analog signal carry out time-discrete operation determining semaphore for the first time,
(j) the more described first main and secondary semaphore, with the formation residual quantity,
(k) more described residual quantity and described signal response to be determining the tuning vector of expression tune direction and absolute value,
(l) the described tuner that starts described first resonance modules by described tuning vector to be obtaining the resonance of described first transmitter signal,
(m) repeating step (c)-(d) and (f)-(m) be used for feedback tuning.
2. according to the process of claim 1 wherein each resonance modules execution in step (a)-(m), handle multiplexed signals by time-discrete operation.
3. directly carry out described analog-to-digital conversion according to the process of claim 1 wherein at the high frequency of described first transmitter signal.
4. according to the process of claim 1 wherein that described semaphore selects from one group of amount, this group amount comprises: signal phase, signal phase change, signal amplitude and signal amplitude change.
5. according to the method for claim 1, comprise that further to utilize common measuring circuit and common signal processing unit multiplexing and handle another input and output signal of another resonance modules.
6. according to the method for claim 1, further comprise another input and output signal that utilizes independent measuring circuit and common another resonance modules of signal processing unit parallel processing.
7. according to the process of claim 1 wherein that the diverse location at signal path obtains the main and secondary signal.
8. according to the method for claim 7, wherein the main and secondary signal be original transmitter signal, by the signal of described resonance modules reflection, the signal in the described resonance modules, from the output signal of described resonance modules two one group.
9. according to the process of claim 1 wherein that the different time points of main and secondary signal in the middle of described tuner work obtains.
10. further comprise step between analog-to-digital conversion and the startup tuner according to the process of claim 1 wherein:
(i) carrier frequency of the described first main analog signal of estimation,
If (ii) interference signal occurred near the analog signal in the described first time, then use this estimated value and determine that the band pass filter of characteristic removes this type of signal,
(iii) estimate the relative phase between the filtered first main and secondary analog signal,
(iv), determine described tuning vector according to the result of (i)-(iii) and the described signal response of described resonance modules.
11. according to the process of claim 1 wherein that the operation of carrying out is suitable for responding any change of described transmitter signal characteristic to keep the stability of described feedback tuning on the main and secondary signal.
12. be used for the system of at least one tunable resonance modules of tuning wireless base station, described tunable resonance modules (1) has tuner (3), transmitter connects (4) and is connected (5) with antenna, described system comprises that at least one analog to digital converter is used for the high-frequency signal measurement of at least one input signal and output signal is transformed into described tunable resonance modules respectively and from described tunable resonance modules conversion, is used for the tuning vector by the described tuner of time-discrete operation calculation control.
13., be used to realize the method for any one claim to a method of front according to the method for claim 12.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE99013724 | 1999-04-16 | ||
| SE9901372A SE9901372D0 (en) | 1999-04-16 | 1999-04-16 | Method and system for tuning resonance modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1346541A true CN1346541A (en) | 2002-04-24 |
Family
ID=20415245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00806101 Pending CN1346541A (en) | 1999-04-16 | 2000-04-14 | Method and system for tuning resonance modules |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1171952A1 (en) |
| CN (1) | CN1346541A (en) |
| AU (1) | AU4444900A (en) |
| SE (1) | SE9901372D0 (en) |
| WO (1) | WO2000064052A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101194423B (en) * | 2005-06-09 | 2010-05-12 | 艾利森电话股份有限公司 | Tunable circuit device and method for providing the same |
| CN101199116B (en) * | 2005-01-14 | 2010-05-19 | 皇家飞利浦电子股份有限公司 | A method for selecting audio content to be played in a vehicle |
| CN101420274B (en) * | 2008-12-04 | 2012-05-30 | 中国人民解放军海军工程大学 | Tuning method for long wave transmitter without electricity application |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE519892C2 (en) | 2000-12-15 | 2003-04-22 | Allgon Ab | A method of tuning a radio filter, a radio filter and a system comprising such a radio filter. |
| DE602006021442D1 (en) * | 2006-12-13 | 2011-06-01 | Panasonic Corp | Analog radio frequency device for wireless telecommunications |
| WO2011150952A1 (en) * | 2010-05-31 | 2011-12-08 | Prism Microwave Oy | Tuning system of resonator filters |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4726071A (en) * | 1984-12-31 | 1988-02-16 | Orion Industries, Inc. | Microprocessor controlled self-tuning resonant cavity and method |
| SE507698C2 (en) * | 1996-07-10 | 1998-07-06 | Allgon Ab | Method and system for tuning resonance modules |
-
1999
- 1999-04-16 SE SE9901372A patent/SE9901372D0/en unknown
-
2000
- 2000-04-14 EP EP00925818A patent/EP1171952A1/en not_active Withdrawn
- 2000-04-14 CN CN 00806101 patent/CN1346541A/en active Pending
- 2000-04-14 AU AU44449/00A patent/AU4444900A/en not_active Abandoned
- 2000-04-14 WO PCT/SE2000/000716 patent/WO2000064052A1/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101199116B (en) * | 2005-01-14 | 2010-05-19 | 皇家飞利浦电子股份有限公司 | A method for selecting audio content to be played in a vehicle |
| CN101194423B (en) * | 2005-06-09 | 2010-05-12 | 艾利森电话股份有限公司 | Tunable circuit device and method for providing the same |
| CN101420274B (en) * | 2008-12-04 | 2012-05-30 | 中国人民解放军海军工程大学 | Tuning method for long wave transmitter without electricity application |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000064052A1 (en) | 2000-10-26 |
| SE9901372D0 (en) | 1999-04-16 |
| EP1171952A1 (en) | 2002-01-16 |
| AU4444900A (en) | 2000-11-02 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |