CN105467228A - Phase noise measurement data processing and displaying device and method based on slide cross-correlation and afterglow technologies - Google Patents
Phase noise measurement data processing and displaying device and method based on slide cross-correlation and afterglow technologies Download PDFInfo
- Publication number
- CN105467228A CN105467228A CN201510793498.6A CN201510793498A CN105467228A CN 105467228 A CN105467228 A CN 105467228A CN 201510793498 A CN201510793498 A CN 201510793498A CN 105467228 A CN105467228 A CN 105467228A
- Authority
- CN
- China
- Prior art keywords
- correlation
- computing cross
- cross
- correlation result
- result
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/26—Measuring noise figure; Measuring signal-to-noise ratio
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Complex Calculations (AREA)
- Measuring Phase Differences (AREA)
Abstract
The invention provides a phase noise measurement data processing and displaying device based on slide cross-correlation and afterglow technologies. The device comprises a data buffer unit, an FFT operational unit, a cross-correlation operational unit, a current cross-correlation operational result unit, an N-time cross-correlation operational result unit, and a displaying and processing unit. With the phase noise measurement data processing and displaying device and a phase noise measurement data processing and displaying method of the invention, a signal with short-term instability can be identified effectively. The results of N times of cross-correlation operations are not displayed and processed all at the same time after the completion of N times of cross-correlation operations, while the result of each cross-correlation operation is displayed and processed after the completion of the cross-correlation operation. Therefore, the phase noise characteristics of a measured signal can be analyzed in a timely manner, and measurement can be stopped in time once the measured signal is found to be of short-term instability, without the need to wait for the completion of N times of cross-correlation operations.
Description
Technical field
The present invention relates to data processing field, particularly a kind of phase noise measurement data processing and display device, also relate to a kind of phase noise measurement data processing and display packing.
Background technology
Phase noise is as a kind of form of expression of short-term frequency stability at frequency domain, and be an important indicator of many modern electronic equipments, its corresponding testing apparatus is also paid attention to widely.Along with the development of modern electronic technology, more and more higher requirement is proposed to the index such as phase noise measurement sensitivity and resolution of phase noise measuring system.And the lifting of the index such as phase noise measurement sensitivity and resolution, except depending on and selecting high performance device, the more important thing is that the data in enormous quantities depended on gathering carry out complex calculations and process is achieved.
A kind of common method of phase noise measurement is " Phase Demodulation+cross-correlation technique ", the method can increase substantially phase noise measurement sensitivity and resolution by repeatedly computing cross-correlation, such as: when carrying out 10000 computing cross-correlations, the sensitivity of phase noise measurement can improve 20dB.
At present, the signal source analyzer of Agilent company is the fastest instrument of phase noise measurement, what this instrument adopted is " Phase Demodulation+cross-correlation technique ", each cross correlation measurement needs the time of 13 seconds, maximum support 10000 computing cross-correlations, return one-shot measurement result after the cross-correlation number of times of user's setting completes.
Such as, when user is provided with 10000 computing cross-correlations, measurement completes and return measurement result needs 36 hours, in so long Measuring Time, the phase noise characteristic of signal may there occurs serious distortion along with the impact of environmental factor, and measurement result may not necessarily react the true phase noise characteristic of measured signal.
Therefore, how can within the shortest time return measurement result, can the phase noise characteristic of immediate analysis measured signal and variation tendency be the key issue that this area needs to solve again.
Fig. 1 is the data processing and display packing block diagram that phase noise measurement is conventional, the FFT computing that 8 sections of measurement data that FPGA sends here by the method send FFT arithmetic unit to carry out A, B two-way respectively, then send computing cross-correlation parts to perform computing cross-correlation by operation result.In 8 sections of raw data of a cross correlation measurement, after the internal mutual associated numbers of times process of every segment data completes, the storage that memory unit carries out computing cross-correlation result is sent in capital, after N the computing cross-correlation arranged as user completes, then give display processing unit by the mean value of this N time computing cross-correlation result and carry out Graphics Processing.
The structure composition of prior art comprises: data buffer parts, FFT arithmetic unit, computing cross-correlation parts, N computing cross-correlation result feature, display processing unit.
Data buffer parts, for storing the raw data measured from FPGA, divide 8 sections of storages, respectively corresponding section 0, section 1 ..., A, B two-way raw data of section 7, corresponding internal mutual associated numbers of times is respectively m0, m1 ..., m7.
FFT arithmetic unit comprises FFTA arithmetic unit and FFTB arithmetic unit, and for performing FFT computing to certain section of A, B two-way raw data, the raw data sequencing that order of operation is sent here according to FPGA carries out successively.
Computing cross-correlation parts are used for performing computing cross-correlation to A, B two-way FFT operation result.
N built-in 8 buffer zones of computing cross-correlation result feature, store the section of answering 0, section 1 respectively ... mj*i computing cross-correlation result of section 7, wherein the value of j is 0 ~ 7, corresponding section 0 ~ section 7, mj represents the internal mutual associated numbers of times of corresponding section, and the span of i is 1 ~ N.
Display processing unit carries out Graphics Processing to the mean value of N computing cross-correlation result.
The action relationships of prior art illustrates:
(1) the measurement raw data of certain section is sent into the designated memory cell of data buffer parts by FPGA, notice FFT arithmetic unit, and the data of this section are ready to;
(2) after FFT arithmetic unit has notice, just read from this storage unit of data buffer parts if idle and measure raw data, resolve into A, B two paths of data, send into the FFT computing of FFTA arithmetic unit and FFTB arithmetic unit execution plural number respectively, and operation result is sent into computing cross-correlation parts, then notify that computing cross-correlation parts FFT computing completes;
(3) computing cross-correlation parts notified after, computing cross-correlation is performed to the FFT operation result of A, B two-way, and the computing cross-correlation result of this section is saved in N computing cross-correlation result feature;
If the computing cross-correlation result data before not existing in this section of N computing cross-correlation result feature, then this section of current computing cross-correlation result is saved in corresponding result buffer;
If the computing cross-correlation result data before existing in this section of N computing cross-correlation result feature, be then averaged computing cross-correlation result before and current computing cross-correlation result, and the result after average is saved in corresponding result buffer;
(4) step (1) ~ (3) are repeated until mj*N computing cross-correlation of 8 sections of raw data has all processed;
(5) after mj*N computing cross-correlation has all processed, computing cross-correlation parts will notify that display processing unit cross-correlation completes, and after display processing unit is notified, carry out Graphics Processing to N cross correlation results.
The shortcoming of prior art is mainly reflected in following two aspects:
(1), there is the signal of short-term instability in None-identified: after N the computing cross-correlation of specifying completes, just can return one-shot measurement result, the short-term instability of measured signal may be fallen by average treatment after N computing cross-correlation during this period, cannot find the short-term instability of measured signal;
(2), user is bad determines how to select a suitable cross-correlation times N: when the cross-correlation times N arranged is less, sensitivity and resolution that user wants may do not reached, when the cross-correlation times N arranged is larger, user needs to wait for longer Measuring Time ability return measurement result, this is difficult to stand concerning user, especially when user is after the very long Measuring Time of wait, when the measurement result returned and its expectation value differ greatly, user is difficult to accept especially.
Summary of the invention
The present invention proposes a kind of phase noise measurement data processing based on slip cross-correlation and sunset glow technology and display device and method, by solving the following point existed in repeatedly cross-correlation test process in conjunction with slip cross-correlation technique and sunset glow technology: (1) cannot anticipation need how many times cross-correlation that test result just can be made to meet test request problem; (2) cannot the middle test mode problem of actual response signal, such as, the problems such as signal short-term instability or losing lock may be fallen in average treatment after repeatedly cross-correlation; (3) measured signal can produce frequency drift with the impact of environmental factor in long test process, thus causes measuring error problem.
Technical scheme of the present invention is achieved in that
Based on phase noise measurement data processing and the display device of slip cross-correlation and sunset glow technology, comprising: data buffer parts, FFT arithmetic unit, computing cross-correlation parts, current computing cross-correlation result feature, N computing cross-correlation result feature and display processing unit;
Described data buffer parts, for storing the raw data measured from FPGA, store corresponding section 0, section 1 respectively ..., A, B two-way raw data of section 7, corresponding internal mutual associated numbers of times is respectively m0, m1 ..., m7;
Described FFT arithmetic unit comprises FFTA arithmetic unit and FFTB arithmetic unit, and for performing FFT computing to certain section of A, B two-way raw data, the raw data sequencing that order of operation is sent here according to FPGA carries out successively;
Described computing cross-correlation parts are used for performing computing cross-correlation to A, B two-way FFT operation result;
Described current computing cross-correlation result feature is for storing current computing cross-correlation result, and built-in 8 buffer zones, distinguish the current computing cross-correlation result of memory paragraph 0 ~ section 7;
Described N the built-in N-1 of a computing cross-correlation result feature buffer zone, N-1 computing cross-correlation result before storing respectively;
The mean value of described display processing unit to current computing cross-correlation result and front i computing cross-correlation result carries out Graphics Processing, and wherein the span of i is 0 ~ N-1.
Based on said apparatus, the invention allows for a kind of phase noise measurement data processing and display packing, comprise the following steps:
Step (1), the measurement raw data of certain section is sent into the designated memory cell of data buffer parts by FPGA, notice FFT arithmetic unit, and the data of this section are ready to;
Step (2), after FFT arithmetic unit has notice, just read from this storage unit of data buffer parts if idle and measure raw data, resolve into A, B two paths of data, send into the FFT computing of FFTA arithmetic unit and FFTB arithmetic unit execution plural number respectively, and operation result is sent into computing cross-correlation parts, then notify that computing cross-correlation parts FFT computing completes;
Step (3), after computing cross-correlation parts are notified, perform internal mutual related operation to the FFT operation result of A, B two-way, and is saved in current computing cross-correlation result feature by the internal mutual correlation result of this section;
Step (4), repeats step (1) ~ (3) until the internal mutual related operation of 8 sections of raw data of a cross-correlation has all processed;
Step (5), if the cross-correlation times N that user is arranged is greater than 1, then the corresponding unit that current computing cross-correlation result is sent to N computing cross-correlation result feature stores by computing cross-correlation parts, and notifies that display processing unit carries out Graphics Processing;
Step (6), after display processing unit is notified, if the computing cross-correlation result before not existing in N computing cross-correlation result feature, then reads current computing cross-correlation result and carries out Graphics Processing from current computing cross-correlation result feature; If the computing cross-correlation result before existing in N computing cross-correlation result feature, then display processing unit is by current computing cross-correlation result with after i computing cross-correlation result is averaged before, then carries out Graphics Processing;
Step (7), repeats step (1) ~ (6) until N computing cross-correlation has all processed.
Alternatively, described step (3) specifically comprises the following steps:
Step (31), if the computing cross-correlation result data before not existing in this section of current computing cross-correlation result feature, is then saved in the result buffer of this section by this section of current computing cross-correlation result;
Step (32), if the computing cross-correlation result data before existing in this section of current computing cross-correlation result feature, then computing cross-correlation result before and current computing cross-correlation result are averaged, and the result after average is saved in the result buffer of this section.
The invention has the beneficial effects as follows:
(1) signal that there is short-term instability can effectively be identified: because this programme can carry out Graphics Processing to each computing cross-correlation result, need not wait until that N computing cross-correlation just carries out Graphics Processing after completing, the phase noise characteristic of measured signal can carry out immediate analysis, once find that measured signal exists short-term instability, can stop in time measuring, without the need to waiting until that N computing cross-correlation completes;
(2) when user does not know that arranging great cross-correlation number of times can reach desired phase noise measurement sensitivity and resolution, a larger cross-correlation number of times can be set, because the method can observe measurement result at every turn, once reach the phase noise measurement sensitivity and resolution that user wants, can stop immediately measuring, without the need to waiting until that all cross-correlation number of times have all processed;
(3) in phase noise measurement process, user finds after measurement reaches certain cross-correlation number of times, if phase noise curve does not have obvious downtrending in the increase along with cross-correlation number of times, then illustrate and currently reached or close to the phase noise actual value of measured signal, continued measurement without the need to spending a large amount of time and go down.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is existing phase noise measurement data processing and display packing theory diagram;
Fig. 2 the present invention is based on the phase noise measurement data processing of slip cross-correlation and sunset glow technology and the theory diagram of display device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The present invention is based on slip cross-correlation technique and sunset glow technology and propose a kind of data processing of phase noise measurement and display device and method.
Slip cross-correlation refers to (supposes that the cross-correlation number of times that user specifies is N) when not reaching the cross-correlation number of times that user specifies, the current measurement result having completed number of times is averaging processing and is shown, when reaching the cross-correlation times N that user specifies, nearest N computing cross-correlation result is averaging processing and is shown.
Sunset glow refers to that the more brightness of number of times of superposition is higher by each computing cross-correlation curve combining display, can by observing the curve distribution of repeatedly drawing, and whether Timeliness coverage measured signal exists short-term instability.
By using slip cross-correlation technique that each phase noise measurement can be made can both to carry out refreshing and showing, whether user the phase noise curve of Timeliness coverage measured signal can there is ANOMALOUS VARIATIONS.When user unclear need how many times computing cross-correlation can reach sensitivity and the resolution of phase noise measurement time, a larger cross-correlation number of times can be set, the Changing Pattern of each phase noise measurement curve of Real Time Observation, once the sensitivity and the resolution index request that reach expection, can stop immediately measuring.
By the track distribution using sunset glow technology can show each phase noise measurement, user can pass through drawn track intensity distributions, and whether observation signal occurs short-term instability, to stop measurement in time drawing measurement conclusion.
Fig. 2 the present invention is based on the phase noise measurement data processing of slip cross-correlation and sunset glow technology and the theory diagram of display device.
Phase noise measurement data processing of the present invention and display device, comprising: data buffer parts, FFT arithmetic unit, computing cross-correlation parts, current computing cross-correlation result feature, N computing cross-correlation result feature and display processing unit.
Described data buffer parts, for storing the raw data measured from FPGA, store corresponding section 0, section 1 respectively ..., A, B two-way raw data of section 7, corresponding internal mutual associated numbers of times is respectively m0, m1 ..., m7.
Described FFT arithmetic unit comprises FFTA arithmetic unit and FFTB arithmetic unit, and for performing FFT computing to certain section of A, B two-way raw data, the raw data sequencing that order of operation is sent here according to FPGA carries out successively.
Described computing cross-correlation parts are used for performing computing cross-correlation to A, B two-way FFT operation result.
Described current computing cross-correlation result feature is for storing current computing cross-correlation result, and built-in 8 buffer zones, distinguish the current computing cross-correlation result of memory paragraph 0 ~ section 7.
Described N the built-in N-1 of a computing cross-correlation result feature buffer zone, N-1 computing cross-correlation result before storing respectively.
The mean value of described display processing unit to current computing cross-correlation result and front i computing cross-correlation result carries out Graphics Processing, and wherein the span of i is 0 ~ N-1.
Based on above-mentioned phase noise measurement data processing and display device, the invention allows for a kind of phase noise measurement data processing and display packing, action relationships is as follows:
Step (1), the measurement raw data of certain section is sent into the designated memory cell of data buffer parts by FPGA, notice FFT arithmetic unit, and the data of this section are ready to;
Step (2), after FFT arithmetic unit has notice, just read from this storage unit of data buffer parts if idle and measure raw data, resolve into A, B two paths of data, send into the FFT computing of FFTA arithmetic unit and FFTB arithmetic unit execution plural number respectively, and operation result is sent into computing cross-correlation parts, then notify that computing cross-correlation parts FFT computing completes;
Step (3), after computing cross-correlation parts are notified, perform internal mutual related operation to the FFT operation result of A, B two-way, and is saved in current computing cross-correlation result feature by the internal mutual correlation result of this section; Step (3) specifically comprises:
Step (31), if the computing cross-correlation result data before not existing in this section of current computing cross-correlation result feature, is then saved in the result buffer of this section by this section of current computing cross-correlation result;
Step (32), if the computing cross-correlation result data before existing in this section of current computing cross-correlation result feature, then computing cross-correlation result before and current computing cross-correlation result are averaged, and the result after average is saved in the result buffer of this section;
Step (4), repeats step (1) ~ (3) until the internal mutual related operation of 8 sections of raw data of a cross-correlation has all processed;
Step (5), if the cross-correlation times N that user is arranged is greater than 1, then the corresponding unit that current computing cross-correlation result is sent to N computing cross-correlation result feature stores by computing cross-correlation parts, and notifies that display processing unit carries out Graphics Processing;
Step (6), after display processing unit is notified, if the computing cross-correlation result before not existing in N computing cross-correlation result feature, then reads current computing cross-correlation result and carries out Graphics Processing from current computing cross-correlation result feature; If the computing cross-correlation result before existing in N computing cross-correlation result feature, then display processing unit is by current computing cross-correlation result with after i computing cross-correlation result is averaged before, then carries out Graphics Processing.
Step (7), repeats step (1) ~ (6) until N computing cross-correlation has all processed.
Phase noise measurement data processing of the present invention and display device and method, can effectively identify the signal that there is short-term instability: because this programme can carry out Graphics Processing to each computing cross-correlation result, need not wait until that N computing cross-correlation just carries out Graphics Processing after completing, the phase noise characteristic of measured signal can carry out immediate analysis, once find that measured signal exists short-term instability, can stop in time measuring, without the need to waiting until that N computing cross-correlation completes.
And, when user does not know that arranging great cross-correlation number of times can reach desired phase noise measurement sensitivity and resolution, a larger cross-correlation number of times can be set, because the method can observe measurement result at every turn, once reach the phase noise measurement sensitivity and resolution that user wants, can stop immediately measuring, without the need to waiting until that all cross-correlation number of times have all processed.
In phase noise measurement process, user finds after measurement reaches certain cross-correlation number of times, if phase noise curve does not have obvious downtrending in the increase along with cross-correlation number of times, then illustrate and currently reached or close to the phase noise actual value of measured signal, continued measurement without the need to spending a large amount of time and go down.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the phase noise measurement data processing based on slip cross-correlation and sunset glow technology and display device, it is characterized in that, comprising: data buffer parts, FFT arithmetic unit, computing cross-correlation parts, current computing cross-correlation result feature, N computing cross-correlation result feature and display processing unit;
Described data buffer parts, for storing the raw data measured from FPGA, store corresponding section 0, section 1 respectively ..., A, B two-way raw data of section 7, corresponding internal mutual associated numbers of times is respectively m0, m1 ..., m7;
Described FFT arithmetic unit comprises FFTA arithmetic unit and FFTB arithmetic unit, and for performing FFT computing to certain section of A, B two-way raw data, the raw data sequencing that order of operation is sent here according to FPGA carries out successively;
Described computing cross-correlation parts are used for performing computing cross-correlation to A, B two-way FFT operation result;
Described current computing cross-correlation result feature is for storing current computing cross-correlation result, and built-in 8 buffer zones, distinguish the current computing cross-correlation result of memory paragraph 0 ~ section 7;
Described N the built-in N-1 of a computing cross-correlation result feature buffer zone, N-1 computing cross-correlation result before storing respectively;
The mean value of described display processing unit to current computing cross-correlation result and front i computing cross-correlation result carries out Graphics Processing, and wherein the span of i is 0 ~ N-1.
2., based on phase noise measurement data processing and the display packing of device described in claim 1, it is characterized in that, comprise the following steps:
Step (1), the measurement raw data of certain section is sent into the designated memory cell of data buffer parts by FPGA, notice FFT arithmetic unit, and the data of this section are ready to;
Step (2), after FFT arithmetic unit has notice, just read from this storage unit of data buffer parts if idle and measure raw data, resolve into A, B two paths of data, send into the FFT computing of FFTA arithmetic unit and FFTB arithmetic unit execution plural number respectively, and operation result is sent into computing cross-correlation parts, then notify that computing cross-correlation parts FFT computing completes;
Step (3), after computing cross-correlation parts are notified, perform internal mutual related operation to the FFT operation result of A, B two-way, and is saved in current computing cross-correlation result feature by the internal mutual correlation result of this section;
Step (4), repeats step (1) ~ (3) until the internal mutual related operation of 8 sections of raw data of a cross-correlation has all processed;
Step (5), if the cross-correlation times N that user is arranged is greater than 1, then the corresponding unit that current computing cross-correlation result is sent to N computing cross-correlation result feature stores by computing cross-correlation parts, and notifies that display processing unit carries out Graphics Processing;
Step (6), after display processing unit is notified, if the computing cross-correlation result before not existing in N computing cross-correlation result feature, then reads current computing cross-correlation result and carries out Graphics Processing from current computing cross-correlation result feature; If the computing cross-correlation result before existing in N computing cross-correlation result feature, then display processing unit is by current computing cross-correlation result with after i computing cross-correlation result is averaged before, then carries out Graphics Processing;
Step (7), repeats step (1) ~ (6) until N computing cross-correlation has all processed.
3. phase noise measurement data processing as claimed in claim 2 and display packing, it is characterized in that, described step (3) specifically comprises the following steps:
Step (31), if the computing cross-correlation result data before not existing in this section of current computing cross-correlation result feature, is then saved in the result buffer of this section by this section of current computing cross-correlation result;
Step (32), if the computing cross-correlation result data before existing in this section of current computing cross-correlation result feature, then computing cross-correlation result before and current computing cross-correlation result are averaged, and the result after average is saved in the result buffer of this section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510793498.6A CN105467228B (en) | 2015-11-11 | 2015-11-11 | A kind of phase noise measurement data processing and display device and method based on sliding cross-correlation and sunset glow technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510793498.6A CN105467228B (en) | 2015-11-11 | 2015-11-11 | A kind of phase noise measurement data processing and display device and method based on sliding cross-correlation and sunset glow technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105467228A true CN105467228A (en) | 2016-04-06 |
| CN105467228B CN105467228B (en) | 2019-02-26 |
Family
ID=55605146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510793498.6A Active CN105467228B (en) | 2015-11-11 | 2015-11-11 | A kind of phase noise measurement data processing and display device and method based on sliding cross-correlation and sunset glow technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105467228B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976590A (en) * | 2017-11-21 | 2018-05-01 | 中国电子科技集团公司第四十研究所 | The data processing equipment and method of a kind of phase noise measurement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398780A1 (en) * | 1989-05-19 | 1990-11-22 | Thomson-Csf | Measuring chain for determing the characteristic of additional phase noise of a component near a carrier frequency |
| US20070225927A1 (en) * | 2004-04-21 | 2007-09-27 | Agilent Technologies, Inc. | Method and an apparatus for measuring noise |
| CN103197160A (en) * | 2013-03-14 | 2013-07-10 | 东南大学 | Detecting method of residual phase noise of electronic device and device thereof |
| CN104062514A (en) * | 2014-07-02 | 2014-09-24 | 中国电子科技集团公司第四十一研究所 | Device and method for measuring pulse carrier phase noise |
| CN104122457A (en) * | 2014-07-15 | 2014-10-29 | 中国电子科技集团公司第四十一研究所 | Pulse modulation signal phase noise measuring device and method |
| CN104407237A (en) * | 2014-10-13 | 2015-03-11 | 中国电子科技集团公司第四十一研究所 | Data communication circuit based on phase noise measurement and method thereof |
-
2015
- 2015-11-11 CN CN201510793498.6A patent/CN105467228B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398780A1 (en) * | 1989-05-19 | 1990-11-22 | Thomson-Csf | Measuring chain for determing the characteristic of additional phase noise of a component near a carrier frequency |
| US20070225927A1 (en) * | 2004-04-21 | 2007-09-27 | Agilent Technologies, Inc. | Method and an apparatus for measuring noise |
| CN103197160A (en) * | 2013-03-14 | 2013-07-10 | 东南大学 | Detecting method of residual phase noise of electronic device and device thereof |
| CN104062514A (en) * | 2014-07-02 | 2014-09-24 | 中国电子科技集团公司第四十一研究所 | Device and method for measuring pulse carrier phase noise |
| CN104122457A (en) * | 2014-07-15 | 2014-10-29 | 中国电子科技集团公司第四十一研究所 | Pulse modulation signal phase noise measuring device and method |
| CN104407237A (en) * | 2014-10-13 | 2015-03-11 | 中国电子科技集团公司第四十一研究所 | Data communication circuit based on phase noise measurement and method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976590A (en) * | 2017-11-21 | 2018-05-01 | 中国电子科技集团公司第四十研究所 | The data processing equipment and method of a kind of phase noise measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105467228B (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10557870B2 (en) | Apparatus and method for time correlated signal acquisition and viewing | |
| CN102879673B (en) | A kind of method of testing of touch-screen precision and device | |
| KR20140013913A (en) | Cross domain triggering in a test and measurement instrument | |
| CN102539864B (en) | Digital oscilloscope and signal measurement method | |
| US9500677B2 (en) | Apparatus and method for providing frequency domain display with visual indication of FFT window shape | |
| CN105510664A (en) | Automatic setting method of digital oscilloscope | |
| CN106093572A (en) | High-precision phase position testing circuit based on integrated phase discriminator AD8302 and method for self-calibrating thereof | |
| CN105467228A (en) | Phase noise measurement data processing and displaying device and method based on slide cross-correlation and afterglow technologies | |
| US9170286B2 (en) | Real-time spectrum analyzer including frequency mask gate and method of operating the same | |
| CN106124081A (en) | Permagnetic synchronous motor accurate multiple spot real time temperature measurement method and system | |
| CN106898031A (en) | A kind of method of reeling off raw silk from cocoons for high-precision optical fiber measurement | |
| US6876936B2 (en) | Measurement of inductance using a digital storage oscilloscope under real-time operating environments | |
| De Keersmaecker et al. | Resilience and the reliability of spectral entropy to assess ecosystem stability | |
| CN109815260B (en) | Waveform display device, waveform parameter statistical method, terminal device and storage medium | |
| CN103116708A (en) | Device and method for evaluating website experience | |
| CN116558639A (en) | Photon counting data processing method, device and system for spectrum measurement | |
| CN114264990A (en) | Target gradient detection method, apparatus, computer device and storage medium | |
| CN102109540B (en) | Digital oscilloscope capable of displaying waveforms of equivalent sampling in raster display and setting method of equivalent sampling points thereof | |
| CN117891709B (en) | Touch performance detection and evaluation method and system for touch display screen | |
| Jing | A new scale-frequency method for inter-harmonic detection based on continuous wavelet transform | |
| JP3565414B2 (en) | Waveform observation device | |
| US20230333148A1 (en) | Device and method for waveform searching by example | |
| CN109379166B (en) | Interference detection method, device, server and storage medium | |
| CN112903567A (en) | Aperture measurement method, device, equipment and storage medium | |
| CN117589868A (en) | Filter debugging, apparatus, device, storage medium and program product for eddy current detection |
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 |