CN109035366A - A kind of spectral trends map generalization method - Google Patents
A kind of spectral trends map generalization method Download PDFInfo
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- CN109035366A CN109035366A CN201811024899.5A CN201811024899A CN109035366A CN 109035366 A CN109035366 A CN 109035366A CN 201811024899 A CN201811024899 A CN 201811024899A CN 109035366 A CN109035366 A CN 109035366A
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- frequency
- spectrum
- signal strength
- strength indication
- color value
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000003595 spectral effect Effects 0.000 title claims abstract description 19
- 238000001228 spectrum Methods 0.000 claims abstract description 43
- 238000010422 painting Methods 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/40—Filling a planar surface by adding surface attributes, e.g. colour or texture
Abstract
The present invention relates to a kind of spectral trends map generalization methods, mainly comprise the steps that S1: the color display range of setting signal intensity value maps out corresponding color value according to each signal strength indication；S2: the spectrum information of current demand signal time domain is read within the scope of certain frequency, saves the signal strength indication of each frequency in the frequency range as parameter；S3: the corresponding color value of each frequency is mapped out according to the color display range of signal strength indication；S4: according to the corresponding color value of each frequency, the spectrogram of present frame is generated；S5: setting painting canvas width gives up the spectrum information more than painting canvas width, saves the subsequent spectrum information into painting canvas, record the spectral trends in a period of time after saving all spectrum informations of the interior spectrogram for a period of time.The intensity method of frequency spectrum is mainly indicated using color value, and records the spectrum information trend in a period of time, allows user that can more intuitively observe the variation tendency of frequency spectrum.
Description
Technical field
The invention belongs to signal measurement technique fields, are related to a kind of method for indicating spectrum intensity with color value, specifically relate to
And a kind of spectral trends map generalization method, record the spectral trends in a period of time.
Background technique
Frequency spectrum: referring to representation of the signal of a time domain under frequency domain, can carry out Fourier transformation for signal
And obtain, in simple terms, frequency spectrum can indicate that a signal is made of the string wave of which frequency, it is also seen that each frequency
The information such as the size and phase of string wave.Common digital spectrum method for drafting: abscissa: frequency, ordinate: power, such as Fig. 1 institute
It is shown as common digital spectrum method for drafting, this method can only intuitively reflect the signal message of current time time domain, Bu Nengji
The frequency spectrum for recording a period of time, cannot intuitively observe the variation tendency of frequency spectrum.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of spectral trends map generalization methods, mainly utilize face
Color value indicates the intensity method of frequency spectrum, and records the spectrum information trend in a period of time, allows user that can more intuitively observe frequency
The variation tendency of spectrum.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
A kind of spectral trends map generalization method, comprising the following steps:
S1: the color display range of setting signal intensity value maps out corresponding color value according to each signal strength indication；
S2: the spectrum information of current demand signal time domain is read within the scope of certain frequency, saves each frequency in the frequency range
Signal strength indication is as parameter；
S3: the corresponding color value of each frequency is mapped out according to the color display range of signal strength indication；
S4: according to the corresponding color value of each frequency, the spectrogram of present frame is generated；
S5: setting painting canvas width is given up after saving all spectrum informations of the interior spectrogram for a period of time more than painting canvas width
Spectrum information saves the subsequent spectrum information into painting canvas, records the spectral trends in a period of time.
Further, the range of the signal strength indication are as follows: 55-70 dBuV, the color display range of setting are as follows: blue-
Light blue-green-yellow-red.
Further, the frequency range is 950-2150MHz.
Further, the painting canvas width is confirmed according to the size of frame number frequency spectrum data.
Further, the frame number is 50 frames.
Beneficial effects of the present invention include at least: spectral trends map generalization method of the present invention, mainly utilize face
Color value indicates the intensity method of frequency spectrum, and records the spectrum information trend in a period of time, allows user that can more intuitively observe frequency
The variation tendency of spectrum.
Detailed description of the invention
Fig. 1 is prior art spectrogram.
Fig. 2 is the flow chart of spectral trends drawing generating method of the present invention.
Fig. 3 is the flow diagram of step S5 of the present invention.
Fig. 4 is that the spectral trends of one embodiment of the invention show figure.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, combined with specific embodiments below to this
Invention is described in further detail.The embodiments described below is exemplary, and for explaining only the invention, and cannot be understood
For limitation of the present invention.Particular technique or condition are not specified in embodiment, according to the literature in the art described skill
Art or condition are carried out according to product description.
Fig. 1 is prior art spectrogram, as shown in Figure 1, being existing common digital spectrum method for drafting, abscissa: frequency
Rate (MHz), ordinate: power (dBm), this method can only intuitively reflect the signal message of current time time domain, can only reflect
The spectrum information at current time cannot record the frequency spectrum of a period of time, i.e., cannot intuitively observe the variation tendency of frequency spectrum.
For this purpose, the present invention is in order to solve the above technical problems, take means in detail below, Fig. 2 is spectral trends of the present invention
The flow chart of drawing generating method, referring to shown in Fig. 2, spectral trends map generalization method of the present invention specifically includes following step
Suddenly.
S1: the color display range of setting signal intensity value maps out corresponding color value according to each signal strength indication；
More specifically, Fig. 4 is that the spectral trends of one embodiment of the invention show figure, abscissa: frequency (MHz), ordinate: power
(dBm), referring to shown in Fig. 4, signal strength indication of the present invention ranges preferably from: the color of 55-70 dBuV, setting are shown
Range are as follows: blue-light blue-green-yellow-red, it is possible thereby to compare the corresponding color value of each signal strength.
S2: sampling out the spectrum information at current time, at this point, when frequency range is 950-2150MHz, in the frequency range
The interior spectrum information for reading current demand signal time domain, saves the signal strength indication of each frequency in the frequency range as parameter；
S3: the corresponding color value of each frequency is mapped out according to the color display range of signal strength indication；This is mapped as this field
Conventional means, such as: blue rgb value are as follows: 0000ff；Light blue rgb value is 00ffff, they distinguish corresponding signal strength indication
Are as follows: 55 and 58.75, linear color section between the two are 55-58.75, similarly, light blue-green-yellow-red line
Property color interval be 58.75-62.5-66.25-70.It thus can be by the signal strength of 55-58.75-62.5-66.25-70dBuV
Value is mapped as the corresponding RGB color value of frequency.It should be noted that the color display range that the present invention is set is above-mentioned five kinds of face
Color, and when signal changes, signal strength indication changes correspondingly.
S4: according to the corresponding color value of each frequency, the spectrogram of present frame is generated；More specifically, by map out come
All colours value, it is from left to right, uniform to generate point-blank, as a frame frequency modal data.
S5: setting painting canvas width is given up wide more than painting canvas after saving all spectrum informations of the interior spectrogram for a period of time
The spectrum information of degree saves the subsequent spectrum information into painting canvas, records the spectral trends in a period of time.
It is understood that the painting canvas width is confirmed according to the size of frame number frequency spectrum data, and such as: as shown in figure 4, drawing
The setting of cloth width can only store 50 frame frequency modal datas, then accumulation draws 50 frame data on painting canvas, and save.
According to an embodiment of the invention, Fig. 3 is the flow diagram of step S5 of the present invention, and after more than 50 frame data, house
That frame frequency modal data (i.e. the 51st frame frequency modal data in queue) for abandoning most start recording, is equivalent to queue, first in first out.
It is understood that signal strength indication range, frequency range and frame number of the present invention, these are not limited especially
System, be not it is fixed, setting can be manually or automatically changed according to signal, nor characteristic.These are intended merely to more
The specific setting for illustrating concrete scheme of the invention well and carrying out.
In conclusion spectral trends map generalization method of the present invention, mainly indicates the strong of frequency spectrum using color value
Degree method, and the spectrum information trend in a period of time is recorded, allow user that can more intuitively observe the variation tendency of frequency spectrum.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant, at the same time, for those skilled in the art, the think of according to the application
Think, there will be changes in the specific implementation manner and application range.
Claims (5)
1. a kind of spectral trends map generalization method, which comprises the following steps:
S1: the color display range of setting signal intensity value maps out corresponding color value according to each signal strength indication；
S2: the spectrum information of current demand signal time domain is read within the scope of certain frequency, saves each frequency in the frequency range
Signal strength indication is as parameter；
S3: the corresponding color value of each frequency is mapped out according to the color display range of signal strength indication；
S4: according to the corresponding color value of each frequency, the spectrogram of present frame is generated；
S5: setting painting canvas width is given up after saving all spectrum informations of the interior spectrogram for a period of time more than painting canvas width
Spectrum information saves the subsequent spectrum information into painting canvas, records the spectral trends in a period of time.
2. generation method according to claim 1, which is characterized in that the range of the signal strength indication are as follows: 55-70
DBuV, the color display range of setting are as follows: blue-light blue-green-yellow-red.
3. generation method according to claim 1, which is characterized in that the frequency range is 950-2150MHz.
4. generation method according to claim 1, which is characterized in that confirm the picture according to the size of frame number frequency spectrum data
Cloth width.
5. generation method according to claim 4, which is characterized in that the frame number is 50 frames.
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| CN201811024899.5A CN109035366A (en) | 2018-09-04 | 2018-09-04 | A kind of spectral trends map generalization method |
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| CN201811024899.5A CN109035366A (en) | 2018-09-04 | 2018-09-04 | A kind of spectral trends map generalization method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562041A (en) * | 2020-12-31 | 2021-03-26 | 江苏天瑞仪器股份有限公司 | Method for drawing concentration trend graph of navigation laser monitoring factor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050080828A1 (en) * | 2003-10-08 | 2005-04-14 | Johnson Mark W. | Method for displaying spectral trends in complex signals |
| CN102288936A (en) * | 2011-07-26 | 2011-12-21 | 成都点阵科技有限公司 | Radio direction finding method applying instantaneous frequency spectrum amplitude frequency distribution data |
| CN104655163A (en) * | 2015-02-16 | 2015-05-27 | 广州丰谱信息技术有限公司 | Color display method and device for measured sequence |
-
2018
- 2018-09-04 CN CN201811024899.5A patent/CN109035366A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050080828A1 (en) * | 2003-10-08 | 2005-04-14 | Johnson Mark W. | Method for displaying spectral trends in complex signals |
| CN102288936A (en) * | 2011-07-26 | 2011-12-21 | 成都点阵科技有限公司 | Radio direction finding method applying instantaneous frequency spectrum amplitude frequency distribution data |
| CN104655163A (en) * | 2015-02-16 | 2015-05-27 | 广州丰谱信息技术有限公司 | Color display method and device for measured sequence |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562041A (en) * | 2020-12-31 | 2021-03-26 | 江苏天瑞仪器股份有限公司 | Method for drawing concentration trend graph of navigation laser monitoring factor |
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Application publication date: 20181218 |