CN109633236A - Automatic Communication Signals Recognition and device - Google Patents
Automatic Communication Signals Recognition and device Download PDFInfo
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- CN109633236A CN109633236A CN201811524608.9A CN201811524608A CN109633236A CN 109633236 A CN109633236 A CN 109633236A CN 201811524608 A CN201811524608 A CN 201811524608A CN 109633236 A CN109633236 A CN 109633236A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0038—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)
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Abstract
The present invention provides a kind of recognition methods at radio signal edge and devices, are related to signal processing technology field.The recognition methods at radio signal edge provided by the embodiments of the present application and device, by the way that two-way reference signal is arranged, radio signal and two-way reference signal can be compared respectively, and obtain the edge of radio signal respectively and do not have the time interval between the edge of road reference signal.To determine whether radio signal is useful signal by the size of the difference of time interval.Pass through setting two-way reference signal in the embodiment of the present application, radio signal for being difficult to long-time stable acquisition can be detected quickly, the identification mistake for avoiding one reference signal of setting from being likely to occur, improves the recognition efficiency and accuracy to radio signal edge.
Description
Technical field
The present invention relates to signal processing technology fields, in particular to a kind of automatic Communication Signals Recognition and device.
Background technique
Radio refers to the electromagnetic wave propagated in all free spaces (including air and vacuum).Radio is led in communication
There is very wide application in domain, in certain usage scenarios, radio signal has rising edge or failing edge, and identification is wireless
The edge of electric signal has a very important significance in certain scenes.Oscillograph or other program components can be used to wireless
The edge of electric signal is identified, but usually only carries out qualitative edge inspection using oscillograph or program component, lower than high speed
Radio signal be difficult to its edge.
Summary of the invention
In view of this, the present invention provides a kind of automatic Communication Signals Recognition and devices.
Technical solution provided by the invention is as follows:
A kind of recognition methods at radio signal edge, comprising:
Compare the radio signal of default frequency range and the voltage of the first reference signal, obtains the radio of the default frequency range
The first time interval value of signal and the first reference signal；
Compare the radio signal of the default frequency range and the voltage of the second reference signal, obtains the nothing of the default frequency range
Second time interval value of line electric signal and the second reference signal；
Whether the time difference for comparing the first time interval value and the second time interval value is in pre-set interval；
If the time difference of the first time interval value and the second time interval value is in pre-set interval, described in determination
Radio signal is useful signal.
Further, this method comprises:
If the time difference of the first time interval value and the second time interval value is not in pre-set interval, determine
The radio signal is invalid signals.
Further, the radio signal of the default frequency range is to amplify to the radio signal of acquisition, and filter out
It is obtained after signal in amplified radio signal other than default frequency range.
Further, this method further include:
Calculate the average value of the first time interval and the second time interval；
If the average value is in preset range, determine that the radio signal is useful signal；
If the average value is in other than the preset range, determine that the radio signal is invalid signals.
The present invention also provides a kind of identification devices at radio signal edge, comprising: signal amplification module, first are compared
Device, the second comparator, the first reference source, the second reference source and processing chip, the signal amplification module is respectively with described first
The connection of the input terminal of the input terminal of comparator and the second comparator, the reference signal input terminal of the first comparator and described the
The connection of one reference source, the reference signal input terminal of second comparator are connect with second reference source, the processing chip
It is connect with the output end of the output end of the first comparator and the second comparator, in which:
The first comparator obtains institute for the radio signal of relatively more default frequency range and the voltage of the first reference signal
State the radio signal of default frequency range and the first time interval value of the first reference signal；
Second comparator is obtained for the radio signal of the default frequency range and the voltage of the second reference signal
To the radio signal of the default frequency range and the second time interval value of the second reference signal；
The processing chip for the first time interval value and the second time interval value time difference whether
In pre-set interval；
If the time difference of the first time interval value and the second time interval value is in pre-set interval, described in determination
Radio signal is useful signal.
Further, which further includes signal amplification module, and the signal amplification module is respectively compared with described first
The input terminal of the input terminal of device and the second comparator connection, for being amplified to the radio signal of acquisition.
Further, which further includes filter module, and the filter module is for filtering out amplified radio signal
In preset frequency range other than signal, obtain the radio signal of the default frequency range.
Further, if the processing chip is also used to the time of the first time interval value and the second time interval value
Difference is not in pre-set interval, determines that the radio signal is invalid signals.
Further, the identification device further includes the first timing unit and the second timing unit, the first timing list
Member and the second timing unit are connect with the processing chip, be used for the first time interval value and the second time interval value into
Row timing.
Further, the processing chip is also used to:
Calculate the average value of the first time interval and the second time interval；
If the average value is in preset range, determine that the radio signal is useful signal；
If the average value is in other than the preset range, determine that the radio signal is invalid signals.
The recognition methods at radio signal edge provided by the embodiments of the present application and device, by setting two-way with reference to letter
Number, radio signal and two-way reference signal can be compared respectively, and obtain the edge of radio signal respectively and do not have
Time interval between the edge of road reference signal.To determine that radio signal is by the size of the difference of time interval
No is useful signal.By setting two-way reference signal in the embodiment of the present application, for being difficult to the wireless of long-time stable acquisition
Electric signal can be detected quickly, and the identification mistake for avoiding one reference signal of setting from being likely to occur is improved to aerogram
The recognition efficiency and accuracy at number edge.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of flow diagram of the recognition methods at radio signal edge provided in an embodiment of the present invention.
Fig. 2 is a kind of schematic diagram of the identification device at radio signal edge provided in an embodiment of the present invention.
Fig. 3 is a kind of schematic diagram of the identification device at radio signal edge provided in an embodiment of the present invention.
Fig. 4 is a kind of schematic diagram of the identification device at radio signal edge provided in an embodiment of the present invention.
Icon: the identification device of 10- radio signal；101- signal amplification module；102- first comparator；103- second
Comparator；The first reference source of 104-；The second reference source of 105-；106- handles chip；107- filter module；108- the first timing list
Member；The second timing unit of 109-.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
The embodiment of the present application provides a kind of recognition methods at radio signal edge, as shown in Figure 1, including following step
Suddenly.
Step S101, the radio signal of the default frequency range and the voltage of the first reference signal, obtain described pre-
If the first time interval value of the radio signal of frequency range and the first reference signal.
In wireless signal application field, it is often necessary to which the edge of radio signal is detected, since radio signal can
It can will not repeat, in order to be examined at edge of the first time to radio signal when radio signal occurs
It surveys, devises parallel two lines road in the embodiment of the present application to detect the time interval between radio signal and reference signal
Value.It is understood that the radio signal in the embodiment of the present application can be received by pre-set antenna.In order to
More accurately the radio signal received is analyzed, the radio signal received first can be filtered and be put
Greatly, by the target signal filter other than default frequency range therein, while the signal in default frequency range is amplified, have passed through filtering and
Signal after amplification is compared with reference signal again.
Step S102, the radio signal of the default frequency range and the voltage of the second reference signal, obtain described pre-
If the second time interval value of the radio signal of frequency range and the second reference signal.
The radio signal that have passed through filtering and amplification can while be compared with two-way reference signal, and first with reference to letter
Number and the second reference signal can be generated by different derived reference signals, the first reference signal and the second reference signal can be not
With the voltage signal of numerical value.Radio signal can realize compared with reference signal by high-speed comparator, high-speed comparator
The comparator of broader bandwidth can be selected, is compared so as to the pulse signal to narrower bandwidth.In the embodiment of the present application
Two high-speed comparators can be set, the signal input part of high-speed comparator can input the radio that have passed through filtering and amplification
The reference signal input terminal of signal, high-speed comparator is connect with derived reference signal.By two high-speed comparators to aerogram
Number and reference signal be compared, can calculate between the time between the edge of radio signal and the edge of reference signal
Every.First time interval value is the length of time between the edge of radio signal and the edge of the first reference signal, when second
Between spacing value be length of time between the edge of radio signal and the edge of the second reference signal.
Whether the time difference of step S103, the first time interval value and the second time interval value is in default
In section.
After first time interval value and the second time interval value can be calculated separately out by two high-speed comparators, in order to
Confirm whether radio signal is useful signal, the big of difference between two time interval values and pre-set interval can be compared again
Small relationship.
Step S104, if the time difference of the first time interval value and the second time interval value is in pre-set interval
It is interior, determine that the radio signal is useful signal.
When the time difference of first time interval value and the second time interval value is in pre-set interval, show radio
Time interval between the edge of signal and the edge of two reference signals is all shorter, which can be used as effective letter
It number is used.
If the time difference of the first time interval value and the second time interval value is not in pre-set interval, show
Time interval between the edge of radio signal and two reference signals or in which the edge of a reference signal is larger, this
When, it can determine that the radio signal is invalid signals.
It, can also be by calculating the first time interval and the in addition, whether be useful signal for radio signal
The average value of two time intervals；If the average value is in preset range, determine that the radio signal is useful signal；If
The average value is in other than the preset range, determines that the radio signal is invalid signals.Judging radio signal is
It is no to can choose one of above two method for useful signal to determine, being averaged two time interval values can be passed through
Value is compared with preset range, determines whether radio signal is effective.
As shown in Fig. 2, the embodiment of the present application also provides a kind of identification devices 10 at radio signal edge, comprising: the
One comparator 102, the second comparator 103, the first reference source 104, the second reference source 105 and processing chip 106, the signal are put
Big module 10 is connect with the input terminal of the input terminal of the first comparator 102 and the second comparator 103 respectively, first ratio
It is connect compared with the reference signal input terminal of device 102 with first reference source 104, the reference signal of second comparator 103 is defeated
Enter end to connect with second reference source 105, the output end and second of the processing chip 106 and the first comparator 102
The output end of comparator 103 connects.
The first comparator 102 is for the radio signal of the default frequency range and the electricity of the first reference signal
Pressure, obtains the radio signal of the default frequency range and the first time interval value of the first reference signal.
Second comparator 103 is for the radio signal of the default frequency range and the electricity of the second reference signal
Pressure, obtains the radio signal of the default frequency range and the second time interval value of the second reference signal.
The processing chip 106 is used for the first time interval value and the time difference of the second time interval value is
It is no to be in pre-set interval.If the time difference of the first time interval value and the second time interval value is in pre-set interval
It is interior, determine that the radio signal is useful signal.
As shown in figure 3, the device further includes signal amplification module 10, the signal amplification module 10 is respectively with described first
The input terminal of the input terminal of comparator 102 and the second comparator 103 connection, for being amplified to the radio signal of acquisition.
As shown in figure 4, the device further includes filter module 107, the filter module 107 is amplified wireless for filtering out
The signal other than frequency range is preset in electric signal, obtains the radio signal of the default frequency range.
If the processing chip 106 is also used to the first time interval value and the time difference of the second time interval value does not have
Have in pre-set interval, determines that the radio signal is invalid signals.
The identification device further includes the first timing unit 108 and the second timing unit 109, first timing unit
108 and second timing unit 109 connect with the processing chip 106, for the first time interval value and the second time
Spacing value carries out timing.
In conclusion recognition methods and the device at radio signal edge provided by the embodiments of the present application, pass through setting two
Radio signal and two-way reference signal can be compared respectively, and obtain radio signal respectively by road reference signal
Time interval between edge and the edge for not having road reference signal.To determine wireless by the size of the difference of time interval
Whether electric signal is useful signal.By setting two-way reference signal in the embodiment of the present application, obtained for being difficult to long-time stable
The radio signal obtained can be detected quickly, the identification mistake for avoiding one reference signal of setting from being likely to occur, raising pair
The recognition efficiency and accuracy at radio signal edge.
In addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.It needs
Illustrate, herein, relational terms such as first and second and the like be used merely to by an entity or operation with
Another entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this realities
The relationship or sequence on border.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of recognition methods at radio signal edge characterized by comprising
Compare the radio signal of default frequency range and the voltage of the first reference signal, obtains the radio signal of the default frequency range
With the first time interval value of the first reference signal；
Compare the radio signal of the default frequency range and the voltage of the second reference signal, obtains the radio of the default frequency range
Second time interval value of signal and the second reference signal；
Whether the time difference for comparing the first time interval value and the second time interval value is in pre-set interval；
If the time difference of the first time interval value and the second time interval value is in pre-set interval, determine described wireless
Electric signal is useful signal.
2. the recognition methods at radio signal edge according to claim 1, which is characterized in that this method comprises:
If the time difference of the first time interval value and the second time interval value is not in pre-set interval, described in determination
Radio signal is invalid signals.
3. the recognition methods at radio signal edge according to claim 1, which is characterized in that the nothing of the default frequency range
Line electric signal is to amplify to the radio signal of acquisition, and filter out in amplified radio signal and preset other than frequency range
It is obtained after signal.
4. the recognition methods at radio signal edge according to claim 1, which is characterized in that this method further include:
Calculate the average value of the first time interval and the second time interval；
If the average value is in preset range, determine that the radio signal is useful signal；
If the average value is in other than the preset range, determine that the radio signal is invalid signals.
5. a kind of identification device at radio signal edge characterized by comprising signal amplification module, first comparator,
Two comparators, the first reference source, the second reference source and processing chip, the signal amplification module respectively with the first comparator
Input terminal and the second comparator input terminal connection, the reference signal input terminal of the first comparator and it is described first reference
Source connection, the reference signal input terminal of second comparator connect with second reference source, the processing chip with it is described
The connection of the output end of the output end of first comparator and the second comparator, in which:
The first comparator obtains described pre- for the radio signal of relatively more default frequency range and the voltage of the first reference signal
If the first time interval value of the radio signal of frequency range and the first reference signal；
Second comparator obtains institute for the radio signal of the default frequency range and the voltage of the second reference signal
State the radio signal of default frequency range and the second time interval value of the second reference signal；
Whether the processing chip is in for the first time interval value and the time difference of the second time interval value
In pre-set interval；
If the time difference of the first time interval value and the second time interval value is in pre-set interval, determine described wireless
Electric signal is useful signal.
6. the identification device at radio signal edge according to claim 5, which is characterized in that the device further includes signal
Amplification module, the signal amplification module connect with the input terminal of the input terminal of the first comparator and the second comparator respectively
It connects, for being amplified to the radio signal of acquisition.
7. the identification device at radio signal edge according to claim 5, which is characterized in that the device further includes filtering
Module, the filter module are used to filter out the signal preset other than frequency range in amplified radio signal, obtain described default
The radio signal of frequency range.
8. the identification device at radio signal edge according to claim 6, which is characterized in that the processing chip is also used
If being not in pre-set interval in the time difference of the first time interval value and the second time interval value, the nothing is determined
Line electric signal is invalid signals.
9. the identification device at radio signal edge according to claim 6, which is characterized in that the identification device also wraps
The first timing unit and the second timing unit are included, first timing unit and the second timing unit and the processing chip connect
It connects, for carrying out timing to the first time interval value and the second time interval value.
10. the identification device at radio signal edge according to claim 6, which is characterized in that the processing chip is also
For:
Calculate the average value of the first time interval and the second time interval；
If the average value is in preset range, determine that the radio signal is useful signal；
If the average value is in other than the preset range, determine that the radio signal is invalid signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811524608.9A CN109633236B (en) | 2018-12-13 | 2018-12-13 | Radio signal identification method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811524608.9A CN109633236B (en) | 2018-12-13 | 2018-12-13 | Radio signal identification method and device |
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| CN109633236A true CN109633236A (en) | 2019-04-16 |
| CN109633236B CN109633236B (en) | 2021-06-22 |
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ID=66073508
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| CN201811524608.9A Active CN109633236B (en) | 2018-12-13 | 2018-12-13 | Radio signal identification method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572170A (en) * | 2019-09-10 | 2019-12-13 | 成都精位科技有限公司 | signal receiving device and wireless transmitting device screening method |
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| Publication number | Publication date |
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| CN109633236B (en) | 2021-06-22 |
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