CN104618042A - System and method for realizing multi-channel signal analysis synchronization and time delay adjustment - Google Patents
System and method for realizing multi-channel signal analysis synchronization and time delay adjustment Download PDFInfo
- Publication number
- CN104618042A CN104618042A CN201510106745.0A CN201510106745A CN104618042A CN 104618042 A CN104618042 A CN 104618042A CN 201510106745 A CN201510106745 A CN 201510106745A CN 104618042 A CN104618042 A CN 104618042A
- Authority
- CN
- China
- Prior art keywords
- channel
- signal
- synchronous
- time delay
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a system and a method for realizing multi-channel signal analysis synchronization and time delay adjustment. The system comprises a plurality of radio frequency channel units, a plurality of base band processing units, a plurality of data storage units and a precision synchronization unit, wherein the radio frequency channel units respectively correspond to channels; each radio frequency channel unit is used for converting a radio frequency input signal of the corresponding channel into an intermediate frequency signal with a fixed frequency and carrying out digital conversion; the base band processing units respectively correspond to the channels; each base band processing unit is used for carrying out digital signal demodulation, compensation of group delay and time delay error adjustment among the channels on an output signal of the corresponding radio frequency channel unit; the data storage units respectively correspond to the channels; the precision synchronization unit is used for carrying out time delay control on signals of the base band processing units. The system and the method for realizing multi-channel signal analysis synchronization and time delay adjustment, which adopt the structure, realize the requirement for synchronization of multi-channel testing on single equipment, improve the confidence level of multi-channel signal analysis, reduce hardware complexity and have a wider application range.
Description
Technical field
The present invention relates to communication technical field, particularly relate to signal simultaneous techniques field, specifically refer to a kind of system and method realizing the synchronous and time delay adjustment of Multi-channel signal analysis.
Background technology
Along with the development of digital cellular telecommunications system technology, in order under limited frequency spectrum resource, improve system data rates and capacity, MIMO (the Multiple-Input Multiple-Output of multiple antennas, MIMO technique) technology adopted in a large number, in LTE-Advanced standard, the multiple antennas configuration of the highest descending support 8 × 8.In view of the complexity of mimo system improves day by day, therefore relevant method of testing and equipment thereof also will have more challenge, from difficulty of test, testing cost and testing efficiency, propose higher requirement to new testing equipment.
First, the system of multiple antennas, due to the increase of number of channels, considerably increases the hardware cost of test macro.The such as mimo system of 8 passages, in principle with regard to must 8 independently signalling channel measure simultaneously, do not repeating here.The test of MIMO multi channel signals belongs to the testing requirement of newly-developed, some method of testings related to this and equipment are all carry out system buildup based on single-channel to form, system complex, calibration bothers very much, even calibration process is far longer than test process, therefore testing cost is high, inefficiency.
Secondly, in the various modes of mimo system, data flow is transmitted by different channels, except cross-couplings interference, Phase synchronization between each reception is particularly important, delay larger between passage even can produce detrimental effects to broadband signal, and in the standard of TD-LTE Advanced, between the strictest regulation MIMO passage, time delay error needs to be less than 24ns.And concerning test macro, this time delay error needs less ability to meet the requirement of measurement.Therefore, in MIMO measuring process, need to carry out accurate Synchronization Control to each passage.Fig. 1 is the Signal Analysis System schematic diagram of 8 passage MIMO, and it is made up of the signal analyzer of 8 platform independent, and the corresponding Measurement channel of every platform instrument, realizes Synchronization Control by reference to synchronous and triggering synchronous between equipment.Here, with reference to synchronously making the local oscillator of 8 equipment and clock lock to same with reference to upper, the triggering signal that triggering synchronous is then sent by certain equipment makes 8 equipment carry out processing and analyzing simultaneously.
But, above-mentioned this Synchronization Control, concerning MIMO test, remain far from being enough, although local oscillator, clock and triggering complete synchronously, but the passage group delay due to each equipment is irregular discrete distribution and widely different, concerning this test macro, need additionally to compensate the passage group delay of each equipment, carry out time delay error correction, the accuracy of then guarantee MIMO signal analysis.And this delay character belongs to the physical parameter of hardware, can change along with time, environment, temperature etc.Therefore, the efficiency of this test macro is extremely low.
Summary of the invention
The object of the invention is the shortcoming overcoming above-mentioned prior art, provide a kind of can realize realizing on a single device multiple channel test synchronous requirement, the confidence level that improve Multi-channel signal analysis, the system and method realizing the synchronous and time delay adjustment of Multi-channel signal analysis that reduces hardware complexity, there is broader applications scope.
To achieve these goals, the Multi-channel signal analysis system and method that is synchronous and time delay adjustment that realizes of the present invention has following formation:
This realizes the system of the synchronous and time delay adjustment of Multi-channel signal analysis, and its main feature is, described system comprises:
Several with each passage radio-frequency channel unit one to one, the radio-frequency channel unit described in each to be gone forward side by side digitized conversion in order to the intermediate-freuqncy signal radio-frequency input signals of corresponding passage being converted to fixed frequency;
Several with each passage baseband processing unit one to one, the baseband processing unit described in each is in order to carry out digital demodulation signal and interchannel time delay error corrects to the output signal of corresponding radio-frequency channel unit;
Several with each passage data storage cell one to one, the data that the data storage cell described in each exports in order to store corresponding baseband processing unit;
Precision synchronous unit, in order to carry out delays time to control to the signal of described baseband processing unit.
Preferably, baseband processing unit described in each comprises I road delays time to control single channel, Q road delays time to control single channel and demodulator of PM signal PM, and described I road delays time to control single channel is connected with the input of described demodulator of PM signal PM respectively with the output of Q road delays time to control single channel.
More preferably, described baseband processing unit also comprises I road group delay compensation circuit and Q road group delay compensation circuit, the output of described I road group delay compensation circuit is connected with the input of described I road delay control circuit, and the output of described Q road group delay compensation circuit is connected with the input of described Q road delay control circuit.
Preferably, described precision synchronous unit is used for storing synchronous control signal for the radio-frequency channel unit described in each provides the frequency reference signal of frequency spectrum shift and sends data to the data storage cell described in each.
More preferably, described precision synchronous unit comprises:
Precision interval clock generator, in order to produce the clock signal of systemic presupposition precision;
Four phase clock generators, in order to produce four clock signal, four described clock signal each other frequency are identical and have 90 ° of phase differences successively;
Clock distribution manager, carries out timing_delay estimation in order to select different clocks;
Programmable delay circuit, in order to carry out delays time to control to the signal of described baseband signal processing unit.
Further, described programmable delay circuit comprises 24bits high-speed counter.
Preferably, described system also comprises multi-channel switch matrix and external signal generator, the output signal of the external signal generator described in input input of described multi-channel switch matrix, each multi-channel output signal of described multi-channel switch matrix inputs the radio-frequency channel unit corresponding to each passage respectively, and described precision synchronous unit exports synchro switch and controls signal to described multi-channel switch matrix.
The invention still further relates to a kind of method realizing the synchronous and time delay adjustment of Multi-channel signal analysis based on described system, its main feature is, described method comprises the following steps:
(1) input signal by controlling the radio frequency input unit described in each controls the independent gating of radio-frequency channel timesharing described in each;
(2) the delay error of each passage is obtained by the signal receiving of described baseband processing unit to each independent radio frequency path;
(3) the time delay adjustment value of each passage is calculated by the clock speed sum counter figure place of programmable delay circuit;
(4) the program control hookup described in carries out delay correction to each passage according to the time delay adjustment value of each passage.
Preferably, described system also comprises multi-channel switch matrix and external signal generator, the output of described external signal generator is connected with the input of described multi-channel switch matrix, each multi-channel output signal of described multi-channel switch matrix inputs the radio-frequency channel unit corresponding to each passage respectively, the described independent gating of radio-frequency channel timesharing controlling described in each by the input signal controlling the radio frequency input unit described in each, is specially:
By controlling described multi-channel switch matrix, the independent gating of timesharing is carried out to the radio-frequency channel described in each.
Have employed the system and method realizing the synchronous and time delay adjustment of Multi-channel signal analysis in this invention, there is following beneficial effect:
The invention provides a kind of associated synchronisation technology and method setting up multi channel signals test, new designing requirement is proposed to system and module, thus makes the synchronous requirement that just can realize multiple channel test on a single device; Native system solves a difficult problem of how to carry out multichannel time delay adjustment simultaneously, and this bearing calibration is simple, is easy to realize, and correction time and hardware cost all very low; It is crucial that by this calibration steps, reduced rate Time Delay of Systems error greatly, improves the confidence level of Multi-channel signal analysis, and the system that multiple devices are set up, due to structural design defect, some error term cannot be eliminated; System of the present invention connects and tests very simple, greatly reduces hardware complexity, increase rate testing efficiency, reduces testing cost.
Accompanying drawing explanation
Fig. 1 is the Signal Analysis System schematic diagram of 8 passage MIMO of the prior art.
Fig. 2 is the structural representation realizing the system of the synchronous and time delay adjustment of Multi-channel signal analysis of the present invention.
Fig. 3 is the internal structure schematic diagram of baseband signal processing unit of the present invention.
Fig. 4 is the internal structure schematic diagram of precision synchronous unit of the present invention.
Fig. 5 of the present inventionly realizes the structural representation that Multi-channel signal analysis system that is synchronous and time delay adjustment is applied to specific embodiment.
Fig. 6 is the schematic diagram of non-ideal channel time delay of the present invention and physical channel time delay.
Embodiment
In order to more clearly describe technology contents of the present invention, conduct further description below in conjunction with specific embodiment.
The present invention is directed to MIMO multi channel signals testing feature, from system composition, channel design etc., new method for designing is proposed, adopted the method for automatic calibration channel time delay difference by software, greatly simplify the synchronous method of this test macro, improve system testing efficiency.
The Multi-channel signal analysis system that is synchronous and time delay adjustment that realizes of the present invention comprises:
Several with each passage radio-frequency channel unit one to one, the radio-frequency channel unit described in each to be gone forward side by side digitized conversion in order to the intermediate-freuqncy signal radio-frequency input signals of corresponding passage being converted to fixed frequency;
Several with each passage baseband processing unit one to one, the baseband processing unit described in each is in order to carry out digital demodulation signal and interchannel time delay error corrects to the output signal of corresponding radio-frequency channel unit;
Several with each passage data storage cell one to one, the data that the data storage cell described in each exports in order to store corresponding baseband processing unit;
Precision synchronous unit, in order to carry out delays time to control to the signal of described baseband processing unit.
In actual applications, radio-frequency channel unit, baseband processing unit and data storage cell are arranged according to the quantity of passage, process respectively to each passage, and precision synchronous unit adopts integrated setting, and the signal time delay simultaneously controlling multiple passage corrects.
In one preferably execution mode, baseband processing unit described in each comprises I road delays time to control single channel, Q road delays time to control single channel and demodulator of PM signal PM, described I road delays time to control single channel is connected with the input of described demodulator of PM signal PM respectively with the output of Q road delays time to control single channel, carries out delay correction respectively to the I road signal of each passage and Q road signal.
In a kind of better execution mode, described baseband processing unit also comprises I road group delay compensation circuit and Q road group delay compensation circuit, the output of described I road group delay compensation circuit is connected with the input of described I road delay control circuit, and the output of described Q road group delay compensation circuit is connected with the input of described Q road delay control circuit.
In one preferably execution mode, described precision synchronous unit is used for storing synchronous control signal for the radio-frequency channel unit described in each provides the frequency reference signal of frequency spectrum shift and sends data to the data storage cell described in each.
In a kind of better execution mode, described precision synchronous unit comprises:
Precision interval clock generator, in order to produce the clock signal of systemic presupposition precision;
Four phase clock generators, in order to produce four clock signal, four described clock signal each other frequency are identical and have 90 ° of phase differences successively;
Clock distribution manager, carries out timing_delay estimation in order to select different clocks;
Programmable delay circuit, in order to carry out delays time to control to the signal of described baseband signal processing unit.
In a kind of better execution mode, described programmable delay circuit comprises 24bits high-speed counter.
In one preferably execution mode, described system also comprises multi-channel switch matrix and external signal generator, the output signal of the external signal generator described in input input of described multi-channel switch matrix, each multi-channel output signal of described multi-channel switch matrix inputs the radio-frequency channel unit corresponding to each passage respectively, and described precision synchronous unit exports synchro switch and controls signal to described multi-channel switch matrix.
The Multi-channel signal analysis method that is synchronous and time delay adjustment that realizes of the present invention comprises the following steps:
(1) input signal by controlling the radio frequency input unit described in each controls the independent gating of radio-frequency channel timesharing described in each;
(2) the delay error of each passage is obtained by the signal receiving of described baseband processing unit to each independent radio frequency path;
(3) the time delay adjustment value of each passage is calculated by the clock speed sum counter figure place of programmable delay circuit;
(4) the program control hookup described in carries out delay correction to each passage according to the time delay adjustment value of each passage.
In one preferably execution mode, the described independent gating of radio-frequency channel timesharing controlling described in each by the input signal controlling the radio frequency input unit described in each, is specially:
By controlling described multi-channel switch matrix, the independent gating of timesharing is carried out to the radio-frequency channel described in each.
The present invention is introduced further below with a specific embodiment:
The present invention as shown in Figure 2, is made up of 4 parts, is radio-frequency channel unit, a baseband signal processing unit and data storage cell RAM and precision synchronous unit composition respectively.Radio-frequency channel unit and baseband processing unit realize single channel signal to analyze essential elements, this structure of the present invention, by precision synchronous unit, can provide that local oscillator is synchronous for multichannel signal measurement, triggering synchronous and clock synchronous, and the delay inequality of unlike signal passage can be eliminated by calibration, to meet the requirement that multichannel MIMO signal is measured.
Radio-frequency input signals is transformed to the intermediate-freuqncy signal of fixed frequency and completes digitlization conversion by radio-frequency channel unit, period needs to adopt converter technique to realize frequency spectrum shift, and the local oscillation signal realizing frequency spectrum shift needs synchronous, precision synchronous unit provides high-precision frequency reference signal REF [n] for each radio-frequency channel unit, and the local oscillation signal of each passage is locked onto in this reference signal.Like this, between the signal of each passage, do not have frequency difference, settling signal Frequency Synchronization.
Base band signal process is Digital Signal Processing mainly, while settling signal demodulation, has also needed the compensation of group delay and interchannel time delay error to correct, as shown in Figure 3.In the present invention, different from other base band signal process, each I/Q passage adds a delays time to control single channel, is corrected with the time delay realizing every road signal by delay control signal Delay [n], thus realize the true synchronization between each passage.Each baseband signal processing unit can export a triggering signal Trig [n], due to the change of passage configuration relation, the path of main control channel is random, therefore each signal processing unit likely exports triggering signal, automatically selected by precision synchronous unit, realize the synchronous triggering of different passage.
RAM is mainly used in the original measurement I/Q data storing different passage, for signal analysis afterwards provides data source.The synchronous control signal Syn [n] sent by precision synchronous unit, synchronous to ensure that the data source of each passage stores.
Precision synchronous unit is emphasis of the present invention, and as shown in Figure 4, it is formed primarily of precision interval clock generator, at a high speed four phase clock generators, clock distribution manager and programmable delay circuit.Precision interval clock generator produces high-precision clock signal, and four phase clock generators produce with frequently but phase difference is the clock signal of 90 degree, selected, different clocks can be selected to carry out timing_delay estimation by clock distribution manager.The synchronised clock of such as 400MHz, the monocycle is 2.5ns, can be produced the clock resolution of 0.6ns, substantially increase synchronization accuracy by four phase clock generators.Programmable delay circuit is made up of 24bits high-speed counter etc., can carry out time delay to signal.
By above method, artificial delays time to control can being carried out to every road signal, by measuring the intrinsic delay inequality of different passage, with maximum delay passage for benchmark, by regulating the time delay of different passage, thus realizing multichannel Delay Synchronization.
Fig. 5 gives the method for measurement of this synchronous error.Except said system, also need an external signal generator and multi-path choice radio-frequency (RF) switch (what provide in figure is 8 channel radio frequency switches).Its bearing calibration is as follows:
(1) signal of radio-frequency signal source delivery channel receive frequency, point frequently continuous wave exports, and exports 8 channel switch matrixes to;
(2) input of the output of switch matrix corresponding each radio-frequency channel respectively connects, and channel switch signal is provided by precision synchronous unit, the radio frequency path that timesharing gating is different;
(3) each passage carries out demodulation to signal respectively, demodulates the signal of each passage, as shown below:
(4) because timesharing gating signal is known, by the RF pulse signal of the different path of demodulation, the delay error delta tn of each passage can be obtained.
(5) by clock size and its figure place of progression of delay unit, calculate the time delay adjustment value of each passage, and control program control time delay circuit.
Have employed the system and method realizing the synchronous and time delay adjustment of Multi-channel signal analysis in this invention, there is following beneficial effect:
The invention provides a kind of associated synchronisation technology and method setting up multi channel signals test, new designing requirement is proposed to system and module, thus makes the synchronous requirement that just can realize multiple channel test on a single device; Native system solves a difficult problem of how to carry out multichannel time delay adjustment simultaneously, and this bearing calibration is simple, is easy to realize, and correction time and hardware cost all very low; It is crucial that by this calibration steps, reduced rate Time Delay of Systems error greatly, improves the confidence level of Multi-channel signal analysis, and the system that multiple devices are set up, due to structural design defect, some error term cannot be eliminated; System of the present invention connects and tests very simple, greatly reduces hardware complexity, increase rate testing efficiency, reduces testing cost.
In this description, the present invention is described with reference to its specific embodiment.But, still can make various amendment and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (9)
1. realize a system for the synchronous and time delay adjustment of Multi-channel signal analysis, it is characterized in that, described system comprises:
Several with each passage radio-frequency channel unit one to one, the radio-frequency channel unit described in each to be gone forward side by side digitized conversion in order to the intermediate-freuqncy signal radio-frequency input signals of corresponding passage being converted to fixed frequency;
Several with each passage baseband processing unit one to one, the baseband processing unit described in each is in order to carry out digital demodulation signal and interchannel time delay error corrects to the output signal of corresponding radio-frequency channel unit;
Several with each passage data storage cell one to one, the data that the data storage cell described in each exports in order to store corresponding baseband processing unit;
Precision synchronous unit, in order to carry out delays time to control to the signal of described baseband processing unit.
2. the system realizing the synchronous and time delay adjustment of Multi-channel signal analysis according to claim 1, it is characterized in that, baseband processing unit described in each comprises I road delays time to control single channel, Q road delays time to control single channel and demodulator of PM signal PM, and described I road delays time to control single channel is connected with the input of described demodulator of PM signal PM respectively with the output of Q road delays time to control single channel.
3. the system realizing the synchronous and time delay adjustment of Multi-channel signal analysis according to claim 2, it is characterized in that, described baseband processing unit also comprises I road group delay compensation circuit and Q road group delay compensation circuit, the output of described I road group delay compensation circuit is connected with the input of described I road delay control circuit, and the output of described Q road group delay compensation circuit is connected with the input of described Q road delay control circuit.
4. the system realizing the synchronous and time delay adjustment of Multi-channel signal analysis according to claim 1, it is characterized in that, described precision synchronous unit is used for storing synchronous control signal for the radio-frequency channel unit described in each provides the frequency reference signal of frequency spectrum shift and sends data to the data storage cell described in each.
5. the system realizing the synchronous and time delay adjustment of Multi-channel signal analysis according to claim 4, it is characterized in that, described precision synchronous unit comprises:
Precision interval clock generator, in order to produce the clock signal of systemic presupposition precision;
Four phase clock generators, in order to produce four clock signal, four described clock signal each other frequency are identical and have 90 ° of phase differences successively;
Clock distribution manager, carries out timing_delay estimation in order to select different clocks;
Programmable delay circuit, in order to carry out delays time to control to the signal of described baseband signal processing unit.
6. the system realizing the synchronous and time delay adjustment of Multi-channel signal analysis according to claim 5, it is characterized in that, described programmable delay circuit comprises 24bits high-speed counter.
7. the system realizing the synchronous and time delay adjustment of Multi-channel signal analysis according to claim 1, it is characterized in that, described system also comprises multi-channel switch matrix and external signal generator, the output signal of the external signal generator described in input input of described multi-channel switch matrix, each multi-channel output signal of described multi-channel switch matrix inputs the radio-frequency channel unit corresponding to each passage respectively, and described precision synchronous unit exports synchro switch and controls signal to described multi-channel switch matrix.
8. realize the method for the synchronous and time delay adjustment of Multi-channel signal analysis based on the system according to any one of claim 1 to 7, it is characterized in that, described method comprises the following steps:
(1) input signal by controlling the radio frequency input unit described in each controls the independent gating of radio-frequency channel timesharing described in each;
(2) the delay error of each passage is obtained by the signal receiving of described baseband processing unit to each independent radio frequency path;
(3) the time delay adjustment value of each passage is calculated by the clock speed sum counter figure place of programmable delay circuit;
(4) the program control hookup described in carries out delay correction to each passage according to the time delay adjustment value of each passage.
9. the method realizing the synchronous and time delay adjustment of Multi-channel signal analysis according to claim 8, it is characterized in that, described system also comprises multi-channel switch matrix and external signal generator, the output of described external signal generator is connected with the input of described multi-channel switch matrix, each multi-channel output signal of described multi-channel switch matrix inputs the radio-frequency channel unit corresponding to each passage respectively, the described independent gating of radio-frequency channel timesharing controlling described in each by the input signal controlling the radio frequency input unit described in each, be specially:
By controlling described multi-channel switch matrix, the independent gating of timesharing is carried out to the radio-frequency channel described in each.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106745.0A CN104618042B (en) | 2015-03-10 | 2015-03-10 | Realize the synchronous system and method with time delay adjustment of Multi-channel signal analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106745.0A CN104618042B (en) | 2015-03-10 | 2015-03-10 | Realize the synchronous system and method with time delay adjustment of Multi-channel signal analysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104618042A true CN104618042A (en) | 2015-05-13 |
| CN104618042B CN104618042B (en) | 2017-03-29 |
Family
ID=53152349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106745.0A Active CN104618042B (en) | 2015-03-10 | 2015-03-10 | Realize the synchronous system and method with time delay adjustment of Multi-channel signal analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104618042B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470428A (en) * | 2015-08-18 | 2017-03-01 | 上海无线通信研究中心 | A kind of precise synchronization of parallel multi-channel channel test equipment and triggering method |
| CN107786764A (en) * | 2016-08-26 | 2018-03-09 | 三星电子株式会社 | The application processor and operating method of modem and RF chips including chip |
| CN107782977A (en) * | 2017-08-31 | 2018-03-09 | 苏州知声声学科技有限公司 | Multiple usb data capture card input signal Time delay measurement devices and measuring method |
| CN109188987A (en) * | 2018-10-26 | 2019-01-11 | 威海威高电子工程有限公司 | Multi channel signals high-precise synchronization control method and device based on high speed D/A |
| WO2019096010A1 (en) * | 2017-11-14 | 2019-05-23 | 京信通信系统（中国）有限公司 | Channel calibration method and device |
| CN110412624A (en) * | 2019-08-22 | 2019-11-05 | 华东师范大学 | The live signal method of reseptance of Chinese Beidou three and the public frequency point of GPS |
| CN111342911A (en) * | 2018-12-18 | 2020-06-26 | 华为技术有限公司 | Method and apparatus for calibrating radio frequency link |
| CN112994817A (en) * | 2019-12-02 | 2021-06-18 | 普源精电科技股份有限公司 | System, method and calibration method for realizing synchronization of multiple signal sources based on synchronizer |
| CN113872745A (en) * | 2021-08-20 | 2021-12-31 | 中国船舶重工集团公司第七二三研究所 | Multichannel signal synchronization system and method |
| CN115128562A (en) * | 2022-08-29 | 2022-09-30 | 长沙隼眼软件科技有限公司 | Channel calibration method, device and storage medium |
| CN115967966A (en) * | 2023-03-17 | 2023-04-14 | 深圳国人无线通信有限公司 | Relay coverage system and multi-channel time delay balancing method thereof |
| CN116032406A (en) * | 2022-11-30 | 2023-04-28 | 三维通信股份有限公司 | Multi-channel time delay alignment method, device, communication equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060050823A1 (en) * | 2004-09-07 | 2006-03-09 | Broadcom | Method and system for a multi-channel signal synchronizer |
| CN1866801A (en) * | 2006-03-29 | 2006-11-22 | 华为技术有限公司 | Apparatus and method for measuring wireless base station channel delay |
| CN201491016U (en) * | 2009-06-11 | 2010-05-26 | 中国人民解放军92728部队 | Channel simulation device for testing aviation wireless communication system |
| US20100232369A1 (en) * | 2009-03-11 | 2010-09-16 | Sony Corporation | Multi-channel single radio communication in home mesh network |
| CN101957444A (en) * | 2010-09-30 | 2011-01-26 | 中国船舶重工集团公司第七二三研究所 | Multichannel radar amplitude and phase automatic correcting method and device |
| US20140089555A1 (en) * | 2012-09-27 | 2014-03-27 | Elihay Shalem | Device, system and method of multi-channel processing |
-
2015
- 2015-03-10 CN CN201510106745.0A patent/CN104618042B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060050823A1 (en) * | 2004-09-07 | 2006-03-09 | Broadcom | Method and system for a multi-channel signal synchronizer |
| CN1866801A (en) * | 2006-03-29 | 2006-11-22 | 华为技术有限公司 | Apparatus and method for measuring wireless base station channel delay |
| US20100232369A1 (en) * | 2009-03-11 | 2010-09-16 | Sony Corporation | Multi-channel single radio communication in home mesh network |
| CN201491016U (en) * | 2009-06-11 | 2010-05-26 | 中国人民解放军92728部队 | Channel simulation device for testing aviation wireless communication system |
| CN101957444A (en) * | 2010-09-30 | 2011-01-26 | 中国船舶重工集团公司第七二三研究所 | Multichannel radar amplitude and phase automatic correcting method and device |
| US20140089555A1 (en) * | 2012-09-27 | 2014-03-27 | Elihay Shalem | Device, system and method of multi-channel processing |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470428A (en) * | 2015-08-18 | 2017-03-01 | 上海无线通信研究中心 | A kind of precise synchronization of parallel multi-channel channel test equipment and triggering method |
| CN106470428B (en) * | 2015-08-18 | 2019-11-22 | 上海无线通信研究中心 | A kind of precise synchronization and triggering method of parallel multi-channel channel test equipment |
| CN107786764A (en) * | 2016-08-26 | 2018-03-09 | 三星电子株式会社 | The application processor and operating method of modem and RF chips including chip |
| US10516433B2 (en) | 2016-08-26 | 2019-12-24 | Samsung Electronics Co., Ltd. | Modem and RF chips, application processor including the same and operating method thereof |
| CN107786764B (en) * | 2016-08-26 | 2020-06-30 | 三星电子株式会社 | Modem and RF chip, application processor including the same and method of operation |
| US10862526B2 (en) | 2016-08-26 | 2020-12-08 | Samsung Electronics Co., Ltd. | Modem and RF chips, application processor including the same and operating method thereof |
| TWI716603B (en) * | 2016-08-26 | 2021-01-21 | 南韓商三星電子股份有限公司 | Modem chip for communicating with radio frequency chip and application processor including the same |
| CN107782977A (en) * | 2017-08-31 | 2018-03-09 | 苏州知声声学科技有限公司 | Multiple usb data capture card input signal Time delay measurement devices and measuring method |
| WO2019096010A1 (en) * | 2017-11-14 | 2019-05-23 | 京信通信系统（中国）有限公司 | Channel calibration method and device |
| CN109188987A (en) * | 2018-10-26 | 2019-01-11 | 威海威高电子工程有限公司 | Multi channel signals high-precise synchronization control method and device based on high speed D/A |
| CN111342911B (en) * | 2018-12-18 | 2021-09-14 | 华为技术有限公司 | Method and apparatus for calibrating radio frequency link |
| CN111342911A (en) * | 2018-12-18 | 2020-06-26 | 华为技术有限公司 | Method and apparatus for calibrating radio frequency link |
| CN110412624A (en) * | 2019-08-22 | 2019-11-05 | 华东师范大学 | The live signal method of reseptance of Chinese Beidou three and the public frequency point of GPS |
| CN112994817A (en) * | 2019-12-02 | 2021-06-18 | 普源精电科技股份有限公司 | System, method and calibration method for realizing synchronization of multiple signal sources based on synchronizer |
| CN112994817B (en) * | 2019-12-02 | 2022-07-26 | 普源精电科技股份有限公司 | System, method and calibration method for realizing synchronization of multiple signal sources based on synchronizer |
| CN113872745A (en) * | 2021-08-20 | 2021-12-31 | 中国船舶重工集团公司第七二三研究所 | Multichannel signal synchronization system and method |
| CN113872745B (en) * | 2021-08-20 | 2024-02-13 | 中国船舶重工集团公司第七二三研究所 | Multichannel signal synchronization system and method |
| CN115128562A (en) * | 2022-08-29 | 2022-09-30 | 长沙隼眼软件科技有限公司 | Channel calibration method, device and storage medium |
| CN115128562B (en) * | 2022-08-29 | 2022-11-29 | 长沙隼眼软件科技有限公司 | Channel calibration method, device and storage medium |
| CN116032406A (en) * | 2022-11-30 | 2023-04-28 | 三维通信股份有限公司 | Multi-channel time delay alignment method, device, communication equipment and storage medium |
| CN115967966A (en) * | 2023-03-17 | 2023-04-14 | 深圳国人无线通信有限公司 | Relay coverage system and multi-channel time delay balancing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104618042B (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104618042A (en) | System and method for realizing multi-channel signal analysis synchronization and time delay adjustment | |
| CN107863967B (en) | Multichannel synchronous output calibration device and method | |
| CN110266421A (en) | Multichannel synchronousing collection phase alignment system and method | |
| CN101529730B (en) | Controlling the bandwidth of an analog filter | |
| CN104316913B (en) | Multichannel receiver real time calibration device and calibration and error compensating method | |
| CN101701988B (en) | Integrated portable multichannel phase coherent signal analyzer | |
| CN107182123B (en) | A kind of synchronous method and synchronization system of UWB positioning system | |
| CN106465322B (en) | The technology of interior up-link delay and downlink delay for base station measuring node in the case where no pre-calibration | |
| CN104917556B (en) | A kind of synchronous multibeam signals generation method based on ultrahigh speed DAC | |
| CN112260890B (en) | Digital array time delay measuring method | |
| CN102480330A (en) | Testing method and equipment for intelligent antenna broadcast forming of base station | |
| CN108880544B (en) | Self-correcting method for data synchronization of multiple devices | |
| CN104579517A (en) | Measurement and analysis method and device for occupied bandwidth of terminal | |
| CN112235860A (en) | Active antenna unit time delay alignment method and device and active antenna unit | |
| CN103560785A (en) | Method and device for generating phase-coherent signals | |
| CN1866801B (en) | Apparatus and method for measuring wireless base station channel delay | |
| CN106612151A (en) | Device and synchronization method for synchronous output between multichannel DDSs | |
| CN105515688A (en) | Transmitter power calibration device and method | |
| CN110109150B (en) | High-precision array signal simulation device and method | |
| CN104917573A (en) | Antenna beam synthesizing phase absolute delay calibration device and method | |
| CN102931985A (en) | Phase-adjustable multi-carrier composite signal generating system | |
| CN112230188A (en) | DBF radar multichannel digital signal amplitude phase error calibration circuit based on FPGA | |
| CN115361741B (en) | High-precision channel signal delay automatic calibration device and method | |
| CN102096656B (en) | GHz level ADC (Analog to Digital Converter) interface IP core | |
| CN103686981B (en) | It is treat or lead to mobile terminal and its frequency offset regulation method more more |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Block C, No. 7, Lane 205, Gaoji Road, Songjiang District, Shanghai, 201601 Patentee after: Chuangyuan Xinke (Shanghai) Technology Co.,Ltd. Address before: 4th Floor, Building 28, No. 69, Guiqing Road, Xuhui District, Shanghai, 200233 Patentee before: TRANSCOM INSTRUMENTS Co.,Ltd. |
|
| CP03 | Change of name, title or address |