CN205562680U - Time domain signal performance evaluation device - Google Patents
Time domain signal performance evaluation device Download PDFInfo
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- CN205562680U CN205562680U CN201620069384.7U CN201620069384U CN205562680U CN 205562680 U CN205562680 U CN 205562680U CN 201620069384 U CN201620069384 U CN 201620069384U CN 205562680 U CN205562680 U CN 205562680U
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Abstract
The utility model relates to a time domain signal performance evaluation device, the module takes place including base mark signal, still including be used for with the base mark signal doubling of frequency to 100.1MHz's first frequency multiplier, be used for arriving the measured signal doubling of frequency 100MHz's second frequency multiplier, counter and calculating unit, the signal output part of first frequency multiplier with the signal output part of second frequency multiplier all is connected to the signal input part of counter, the data output end of counter is connected to calculating unit's data input end. The utility model provides a frequency instability that time domain signal performance evaluation device added is minimum, is enough to measure the frequency stability in the standard frequency source that present index is the highest. Can realize the additional frequency instability's of the two port parts such as the accurate characteristic of frequency, frequency characteristic steady in a long -term and amplifier, frequency multiplier in built -in crystal oscillator, the frequency synthesizer equifrequent source of high target atomic frequency standard, electronic instrument equipment measurement.
Description
Technical field
This utility model relates to time-domain signal Performance Evaluation field, is specifically related to a kind of time-domain signal capability evaluating device.
Background technology
Now, atomic frequency standard product both domestic and external all develops towards high-technology index, and more deep along with study, technical specification also will step up.The 1s level frequency stability of current domestic hydrogen clock reaches 4E-13, day frequency stability reach 4E-15；Import Hydrogen Atom Frequency Standard 1s level frequency stability reaches 3E-13, day frequency stability reach 3E-15；The Composite Seismogram of Cesium atomic fountain clock is then better than 3E-15.
Along with the atomic frequency standard of high target develops, the requirement to test equipment is had higher requirement, and existing apparatus for evaluating does not adapts to.
Utility model content
The technical problems to be solved in the utility model is: propose a kind of high resolution atomic frequency standard comparison/capability evaluating device that can be used for measuring the frequency stability of the highest standard frequency source of current index.
This utility model is that the technical scheme solving the proposition of above-mentioned technical problem is: a kind of time-domain signal capability evaluating device, including reference signal generation module, also include for by the first doubler of reference signal frequency multiplication to 100.1MHz, be used for the second doubler, enumerator and the computing unit of measured signal frequency multiplication to 100MHz；
The signal output part of described first doubler and the signal output part of described second doubler are all connected to the signal input part of described enumerator, and the data output end of described enumerator is connected to the data input pin of described computing unit.
Further, described first doubler is to constitute by being sequentially connected with Schottky diode times frequency module, resonant tank module, the first filter module, Direct Digital Frequency Synthesizers module, the second filter module and power amplifier module；
Described second doubler is to constitute by being sequentially connected with Schottky diode times frequency module, resonant tank module, the 3rd filter module, triode times frequency module, the 4th filter module and power amplifier module.
The beneficial effects of the utility model are:
The frequency instability attached by time-domain signal capability evaluating device in this utility model is minimum, it is sufficient to measure the frequency stability of the highest standard frequency source of current index.The instable measurement of additional frequency of high target atomic frequency standard, the built-in crystal oscillator of electronic equipment, the frequency accurate characteristics in frequency synthesizer equifrequent source, frequency characteristic steady in a long-term and the Two-port netwerk parts such as amplifier, doubler can be realized.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings time-domain signal capability evaluating device of the present utility model is described further.
Fig. 1 is the structured flowchart of time-domain signal capability evaluating device in this utility model；
Fig. 2 is the circuit structure block diagram of the first doubler；
Fig. 3 is the circuit structure block diagram of the second doubler.
Detailed description of the invention
Embodiment
According to Fig. 1, Fig. 2 and Fig. 3, time-domain signal capability evaluating device in this utility model, including reference signal generation module, also include for by the first doubler of reference signal frequency multiplication to 100.1MHz, be used for the second doubler, enumerator and the computing unit of measured signal frequency multiplication to 100MHz.
In the present embodiment, computing unit is that the single-chip microcomputer that personal computer (PC), certain PC can also be had equal computing capability by other replaces.
The signal output part of the first doubler and the signal output part of the second doubler are all connected to the signal input part of enumerator, and the data output end of enumerator is connected to the data input pin of computing unit.
Can be as preferably: the first doubler is to constitute by being sequentially connected with Schottky diode times frequency module, resonant tank module, the first filter module, Direct Digital Frequency Synthesizers module (DDS), the second filter module and power amplifier module.
Second doubler is to constitute by being sequentially connected with Schottky diode times frequency module, resonant tank module, the 3rd filter module, triode times frequency module, the 4th filter module and power amplifier module.
Of the present utility model it is not limited to above-described embodiment; the technical scheme of each embodiment above-mentioned of the present utility model can form new technical scheme with combined crosswise each other; the technical scheme that the most all employing equivalents are formed, all falls within the protection domain of this utility model requirement.
Claims (2)
1. a time-domain signal capability evaluating device, including reference signal generation module, it is characterised in that: also include for by the first doubler of reference signal frequency multiplication to 100.1MHz, be used for the second doubler, enumerator and the computing unit of measured signal frequency multiplication to 100MHz；
The signal output part of described first doubler and the signal output part of described second doubler are all connected to the signal input part of described enumerator, and the data output end of described enumerator is connected to the data input pin of described computing unit.
Time-domain signal capability evaluating device the most according to claim 1, it is characterised in that: described first doubler is to constitute by being sequentially connected with Schottky diode times frequency module, resonant tank module, the first filter module, Direct Digital Frequency Synthesizers module, the second filter module and power amplifier module；
Described second doubler is to constitute by being sequentially connected with Schottky diode times frequency module, resonant tank module, the 3rd filter module, triode times frequency module, the 4th filter module and power amplifier module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069384.7U CN205562680U (en) | 2016-01-25 | 2016-01-25 | Time domain signal performance evaluation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069384.7U CN205562680U (en) | 2016-01-25 | 2016-01-25 | Time domain signal performance evaluation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562680U true CN205562680U (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620069384.7U Expired - Fee Related CN205562680U (en) | 2016-01-25 | 2016-01-25 | Time domain signal performance evaluation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205562680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929237A (en) * | 2016-01-25 | 2016-09-07 | 江汉大学 | Time domain signal performance evaluation apparatus |
-
2016
- 2016-01-25 CN CN201620069384.7U patent/CN205562680U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929237A (en) * | 2016-01-25 | 2016-09-07 | 江汉大学 | Time domain signal performance evaluation apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20190125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |