CN104914284B - A kind of oscillograph gray-scale intensity adjusting method and device - Google Patents
A kind of oscillograph gray-scale intensity adjusting method and device Download PDFInfo
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Abstract
The oscillograph gray-scale intensity adjusting method and device that the application provides, pixel points when obtaining the frame number and current oscillograph of upper waveform gray scale overlap-add procedure time zone under base, according to frame number and it is current when base points calculate current form gray scale overlap-add procedure time zone in gray-scale intensity value, gray-scale intensity value is added in current form gray scale overlap-add procedure time zone.Gray-scale intensity can accurately be calculated so that the tonal gradation shown on oscillograph is more accurate, and tonal gradation parameter do not have to when base change and carry out manual modification, tonal gradation not with when base, signal change and narrow.
Description
Technical field
The application is related to a kind of oscillograph gray-scale intensity adjusting method and device.
Background technology
In the digital oscilloscope of prior art, in order to preferably show the details for measuring signal, digital oscilloscope is also learned
The shading value of habit simulation real-time oscilloscope is shown and real-time characteristic function, produces display effect in digital form and is better than simulating oscillography
The chemiluminescence effect, different gray scales etc. that the brightness of device cathode-ray tube (CRT, Cathode Ray Tube) changes gradually
Level, the different frequency that reflection signal occurs, this just has the appearance of tonal gradation digital oscilloscope.
Prior art to it is different in digital oscilloscope when base tonal gradation regulation typically using following methods carry out：Root
According to it is each when base refresh rate different parameter is configured to tonal gradation.Therefore, it is necessary to count the refreshing of base when getting well each in advance
Rate, then calculates suitable tonal gradation configuration parameter, and software is write these parameters and gone inside allocation list, base during switching
When corresponding parameter when recalling this under base configured.
But there is following defect in prior art：
When each under base, different signals has different refresh rates, and the tonal gradation obtained in advance according to training configures
Parameter not necessarily adapts to all signals.
The content of the invention
The application provides a kind of oscillograph gray-scale intensity adjusting method and device, can calculate oscilloscope signal waveform
Gray-scale intensity grade.
According to the application's in a first aspect, the application provides a kind of oscillograph gray-scale intensity adjusting method, including：In acquisition
The row when frame number and current oscillograph of one waveform gray scale overlap-add procedure time zone under base are parallel to the pixel of y-axis
Points, the waveform gray scale overlap-add procedure time zone is the refresh time of at least two frame waveforms；According to the upper waveform ash
Row when spending the frame number and current oscillograph of overlap-add procedure time zone under base calculate parallel to the points of the pixel of y-axis
Gray-scale intensity value in current form gray scale overlap-add procedure time zone；The gray-scale intensity value is added to current form gray scale
In overlap-add procedure time zone.
Optionally, during the frame number and current oscillograph according to the upper waveform gray scale overlap-add procedure time zone
A row under base calculate the gray-scale intensity in current form gray scale overlap-add procedure time zone parallel to the points of the pixel of y-axis
Value includes：
Gray-scale intensity is calculated using below equation (1) and formula (2)：
Wherein, s_dpo_m_max_val is waveform gray scale maximum, and s_ini_m_val is waveform gray scale initial value, s_
The points sample value of base when piont_num is current, s_dpo_rate_buf is upper waveform gray scale overlap-add procedure time zone
The frame number being calculated, s_dpo_m_ud_val are frame number sample value, and s_dpo_p_ud_val is points sample value, s_dpo_a_
Val is intensity step value.
Optionally, in addition to：The intensity step value is modified.
Optionally, it is described the intensity step value is modified including：It is modified according to below equation：
X+y=s_dpo_rate_buf-1
Wherein, x frames step value is s_dpo_a_val frame number, and y frames step value is s_dpo_a_val+1 frame number, is asked
Go out：
Y=(s_dpo_m_max_val-s_ini_m_val) × s_dpo_m_ud_val-a × (s_dpo_rate_buf-
1)
Substitute into formula (1) and obtain x values.
According to the second aspect of the application, there is provided a kind of oscillograph gray-scale intensity adjusting means, including：Acquiring unit, use
The row when frame number and current oscillograph of upper waveform gray scale overlap-add procedure time zone is obtained under base are parallel to y-axis
The points of pixel, the waveform gray scale overlap-add procedure time zone are the refresh time of at least two frame waveforms；Computing unit, use
Row when according to the frame number and current oscillograph of the upper waveform gray scale overlap-add procedure time zone under base are parallel to y
The points of the pixel of axle calculate the gray-scale intensity value in current form gray scale overlap-add procedure time zone；Superpositing unit, it is used for
The gray-scale intensity value is added in current form gray scale overlap-add procedure time zone.
Optionally, the computing unit is specifically used for：Gray-scale intensity is calculated using below equation (1) and formula (2)：
Wherein, s_dpo_m_max_val is waveform gray scale maximum, and s_ini_m_val is waveform gray scale initial value, s_
The points sample value of base when piont_num is current, s_dpo_rate_buf is upper waveform gray scale overlap-add procedure time zone
The frame number being calculated, s_dpo_m_ud_val are frame number sample value, and s_dpo_p_ud_val is points sample value, s_dpo_a_
Val is intensity step value.
Optionally, in addition to：Amending unit, the intensity step value for the computing unit to be calculated are carried out
Amendment.
Optionally, the amending unit is specifically used for：It is modified according to below equation combination formula (1)：
X+y=s_dpo_rate_buf-1
Wherein, x frames step value be s_dpo_a_val frame number, y frames step value be s_dpo_a_val+1 frame number, a generations
Table s_dpo_a_val.
The oscillograph gray-scale intensity adjusting method and device that the application provides, obtained the upper waveform gray scale overlap-add procedure time
Pixel points when the frame number and current oscillograph in region under base, according to frame number and it is current when base points calculate it is current
Gray-scale intensity value in waveform gray scale overlap-add procedure time zone, gray-scale intensity value is added to current form gray scale overlap-add procedure
In time zone.Gray-scale intensity can accurately be calculated so that the tonal gradation shown on oscillograph is more accurate, and gray scale
Class parameter do not have to when base change and carry out manual modification, tonal gradation not with when base, signal change and become
It is narrow.
Brief description of the drawings
Fig. 1 is the method flow diagram of the embodiment of the present invention；
Fig. 2 is the apparatus structure schematic diagram of inventive embodiments；
Fig. 3 is another apparatus structure schematic diagram of inventive embodiments；
Fig. 4 is to utilize a kind of curve map got according to different frame numbers of the embodiment of the present invention.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.
In the embodiment of the present application, there is provided a kind of oscillograph gray-scale intensity adjusting method and device, calculate oscillograph letter
The gray-scale intensity of number waveform.
Embodiment one：
Fig. 1 is refer to, Fig. 1 is the method flow diagram of the embodiment of the present invention one.As shown in figure 1, a kind of oscillograph gray scale is strong
Adjusting method is spent, may comprise steps of：
Row when the 101st, obtaining the frame number and current oscillograph of upper waveform gray scale overlap-add procedure time zone under base
Parallel to the points of the pixel of y-axis.
Waveform gray scale overlap-add procedure time zone takes into account waveform renewal interval and wave-form refresh rate when designing.If design ripple
The shape gray scale overlap-add procedure time is longer, then the interval that waveform updates on screen is also just longer；If design the superposition of waveform gray scale
Processing time is shorter, then the switching of waveform gray scale overlap-add procedure is more frequent, and this will waste the regular hour and be not used to adopt
Collection and waveform processing, there is certain loss to wave-form refresh rate.Therefore in the present embodiment, waveform gray scale overlap-add procedure time zone
It is the refresh time of at least two frame waveforms.
102nd, it is flat according to the row under base when the frame number and current oscillograph of upper waveform gray scale overlap-add procedure time zone
Row calculates the gray-scale intensity value in current form gray scale overlap-add procedure time zone in the points of the pixel of y-axis.
Specifically, below equation (1) and formula (2) can be utilized to calculate gray-scale intensity：
Wherein, s_dpo_m_max_val is waveform gray scale maximum, and s_ini_m_val is waveform gray scale initial value, also,
S_dpo_m_max_val is set as 252, s_ini_m_val 0.The pixel points of base, s_ when s_piont_num is current
Dpo_rate_buf is the frame number of upper waveform gray scale overlap-add procedure time zone, and s_dpo_m_ud_val is frame number sample value,
It is expressed as taking 1 frame to carry out intensity level superposition in s_dpo_m_ud_val frames.S_dpo_p_ud_val is points sample value, is expressed as
1 progress intensity level superposition is taken per s_dpo_p_ud_val point.S_dpo_a_val is intensity step value.
Above-mentioned formula (1) conversion is obtained：
With reference to formula (1a) and formula (2) it is recognised that there are 3 unknown numbers inside two equations, can not solve, because
This first sets intensity step value s_dpo_a_val as 1 (superposition of i.e. each intensity level only adds 1), is left with 2 unknown numbers.By
It can only be positive integer in frame number sample value s_dpo_m_ud_val and points sample value s_dpo_p_ud_val, namely calculate
Value need rounded, this is resulted in when s_dpo_m_ud_val or s_dpo_p_ud_val value is smaller, frame
Number sample value s_dpo_m_ud_val and the ideal value difference of points sample value s_dpo_p_ud_val and calculation formula demand are very
Greatly, therefore, in the present embodiment, s_dpo_rate_buf and s_piont_num size are compared, according to comparative result according to certain
Sequencing calculates frame number sample value s_dpo_m_ud_val and points sample value s_dpo_p_ud_val, obtains frame number sample value
After s_dpo_m_ud_val and points sample value s_dpo_p_ud_val, if being finally unsatisfactory for condition (in frame number and points all very
In the case of few) just compensated using adjusting strength step value s_dpo_a_val, specific calculating process is as follows：
If s_dpo_rate_buf is less than s_piont_num, and sets intensity step value s_dpo_a_val as 1, then
Both the above equation, which can merge, first to be calculated s_dpo_m_ud_val and is：
Round up, then substitute into equation (1a) and obtain s_dpo_p_ud_val and be：
If s_dpo_rate_buf is more than s_piont_num, and sets intensity step value s_dpo_a_val as 1, then
Both the above equation, which can merge, first to be calculated s_dpo_p_ud_val and is：
Round, then substitute into equation (1a) and obtain s_dpo_m_ud_val and be：
So, frame number sample value s_dpo_m_ud_val and points sample value s_dpo_p_ud_val have just been calculated
Come, finally also need to calculate intensity step value s_dpo_a_val.When current the pixel points s_piont_num of base and
, it is necessary to intensity stepping in the case that the frame number s_dpo_rate_buf of upper waveform gray scale overlap-add procedure time zone is fewer
Value s_dpo_a_val is wider to cause waveform tonal gradation, and s_dpo_m_ud_val and s_dpo_p_ud_val is substituted into equation
(1a), calculating intensity step value s_dpo_a_val is：
After gray-scale intensity is calculated, gray-scale intensity value can also be modified using below equation：
Similarly, integer is not necessarily because intensity step value s_dpo_a_val is calculated, but needs the value configured only
Can be integer, in order to be modified, the superposition carried out using frame number is modified, in last registration frame number s_dpo_rate_buf
Or the intensity step value of the partial frame s_dpo_a_val inside frame number sample value s_dpo_m_ud_val frame numbers can be changed into s_
dpo_a_val+l.At the time of change can be needed by the following value for extrapolating s_dpo_a_val, (following a represents s_dpo_a_
val)。
X+y=s_dpo_rate_buf-1；
Wherein, x frames step value is s_dpo_a_val frame number, and y frames step value is s_dpo_a_val+1 frame number, is asked
Go out：
Y=(s_dpo_m_max_val-s_ini_m_val) × s_dpo_m_ud_val-a × (s_dpo_rate_buf-
1)
Substitute into formula (1a) and obtain x values.
103rd, gray-scale intensity value is added in current form gray scale overlap-add procedure time zone.
The oscillograph gray-scale intensity adjusting method that the application provides, obtain upper waveform gray scale overlap-add procedure time zone
When frame number and current oscillograph under base pixel points, according to frame number and it is current when base points calculate current form ash
The gray-scale intensity value spent in overlap-add procedure time zone, gray-scale intensity value is added to current form gray scale overlap-add procedure time zone
In domain.Gray-scale intensity can accurately be calculated so that the tonal gradation shown on oscillograph is more accurate, and tonal gradation is joined
Number do not have to when base change and carry out manual modification, tonal gradation not with when base, signal change and narrow.
Embodiment two：
Accordingly, the application also provides a kind of oscillograph gray-scale intensity adjusting means, refer to Fig. 2, and Fig. 2 is real for the present invention
The apparatus structure schematic diagram applied.As shown in Fig. 2 oscillograph gray-scale intensity adjusting means can include：
Acquiring unit 30, during frame number and current oscillograph for obtaining upper waveform gray scale overlap-add procedure time zone
For a row under base parallel to the points of the pixel of v axles, the waveform gray scale overlap-add procedure time zone is at least two frame waveforms
Refresh time.
Computing unit 31, work as the frame number according to the upper waveform gray scale overlap-add procedure time zone and oscillograph
Row when preceding under base calculate the gray scale in current form gray scale overlap-add procedure time zone parallel to the points of the pixel of y-axis
Intensity level.
Superpositing unit 32, for the gray-scale intensity value to be added in current form gray scale overlap-add procedure time zone.
In one embodiment, computing unit 31 is specifically used for：
Gray-scale intensity is calculated using below equation (1) and formula (2)：
Wherein, s_dpo_m_max_val is waveform gray scale maximum, and s_ini_m_val is waveform gray scale initial value, s_
The points sample value of base when piont_num is current, s_dpo_rate_buf is upper waveform gray scale overlap-add procedure time zone
The frame number being calculated, s_dpo_m_ud_val are frame number sample value, and s_dpo_p_ud_val is points sample value, s_dpo_a_
Val is intensity step value.
Also referring to Fig. 3, in one embodiment, the oscillograph gray-scale intensity adjusting means that the application provides also includes：
Amending unit 33, the intensity step value for the computing unit to be calculated are modified.
In one embodiment, amending unit 33 is specifically used for：
It is modified according to below equation：
X+y=s_dpo_rate_buf-1
Wherein, x frames step value is s_dpo_a_val frame number, and y frames step value is s_dpo_a_val+1 frame number, is asked
Go out：
Y=(s_dpo_m_max_val-s_ini_m_val) × s_dpo_m_ud_val-a × (s_dpo_rate_buf-
1)
Substitute into formula (1) and obtain x values.
Fig. 4 is refer to, in the case of the pixel points of base are 1 when Fig. 4 is current, different frame numbers obtain (from 2~4096 frames)
The curve map got.Wherein, abscissa is frame number, and ordinate is intensity level, and each bar curve is 1 frame~various frame numbers maximum frame number
Corresponding intensity level.
The oscillograph gray-scale intensity adjusting means that the application provides, for obtaining upper waveform gray scale overlap-add procedure time zone
When the frame number and current oscillograph in domain under base pixel points, according to frame number and it is current when base points calculate work as prewave
Gray-scale intensity value in shape gray scale overlap-add procedure time zone, by gray-scale intensity value be added to current form gray scale overlap-add procedure when
Between in region.Gray-scale intensity can accurately be calculated so that the tonal gradation shown on oscillograph is more accurate, and gray scale etc.
Level parameter do not have to when base change and carry out manual modification, tonal gradation not with when base, signal change and narrow.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this hair
Bright specific implementation is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of from present inventive concept, some simple deduction or replace can also be made.
Claims (6)
- A kind of 1. oscillograph gray-scale intensity adjusting method, it is characterised in that including：Row when obtaining the frame number and current oscillograph of upper waveform gray scale overlap-add procedure time zone under base are parallel to y-axis Pixel points, the waveform gray scale overlap-add procedure time zone is the refresh time of at least two frame waveforms；Gray-scale intensity is calculated using below equation (1) and formula (2)：<mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>max</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> <mo>=</mo> <mi>s</mi> <mo>_</mo> <mi>i</mi> <mi>n</mi> <mi>i</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> <mo>+</mo> <mfrac> <mrow> <mi>s</mi> <mo>_</mo> <mi>p</mi> <mi>i</mi> <mi>o</mi> <mi>n</mi> <mi>t</mi> <mo>_</mo> <mi>n</mi> <mi>u</mi> <mi>m</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>p</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>&times;</mo> <mfrac> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>r</mi> <mi>a</mi> <mi>t</mi> <mi>e</mi> <mo>_</mo> <mi>b</mi> <mi>u</mi> <mi>f</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>&times;</mo> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>a</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </mrow><mrow> <mfrac> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>r</mi> <mi>a</mi> <mi>t</mi> <mi>e</mi> <mo>_</mo> <mi>b</mi> <mi>u</mi> <mi>f</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>=</mo> <mfrac> <mrow> <mi>s</mi> <mo>_</mo> <mi>p</mi> <mi>i</mi> <mi>o</mi> <mi>n</mi> <mi>t</mi> <mo>_</mo> <mi>n</mi> <mi>u</mi> <mi>m</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>p</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>2</mn> <mo>)</mo> </mrow> </mrow>Wherein, s_dpo_m_max_val is waveform gray scale maximum, and s_ini_m_val is waveform gray scale initial value, s_piont_ The points sample value of base when num is current, s_dpo_rate_buf are that upper waveform gray scale overlap-add procedure time zone calculates The frame number arrived, s_dpo_m_ud_val are frame number sample value, and s_dpo_p_ud_val is points sample value, and s_dpo_a_val is Intensity step value；The gray-scale intensity value is added in current form gray scale overlap-add procedure time zone.
- 2. oscillograph gray-scale intensity adjusting method as claimed in claim 1, it is characterised in that also include：The intensity step value is modified.
- 3. oscillograph gray-scale intensity adjusting method as claimed in claim 2, it is characterised in that described to the intensity step value Be modified including：It is modified according to below equation combination formula (1)：X+y=s_dpo_rate_buf-1<mrow> <mfrac> <mrow> <mi>a</mi> <mo>*</mo> <mi>x</mi> <mo>+</mo> <mrow> <mo>(</mo> <mi>a</mi> <mo>+</mo> <mn>1</mn> <mo>)</mo> </mrow> <mo>*</mo> <mi>y</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>=</mo> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>m</mi> <mi>a</mi> <mi>x</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> <mo>-</mo> <mi>s</mi> <mo>_</mo> <mi>i</mi> <mi>n</mi> <mi>i</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow>Wherein, x frames step value is s_dpo_a_val frame number, and y frames step value is s_dpo_a_val+1 frame number, and a represents s_ dpo_a_val。
- A kind of 4. oscillograph gray-scale intensity adjusting means, it is characterised in that including：Acquiring unit, during frame number and current oscillograph for obtaining upper waveform gray scale overlap-add procedure time zone under base For one row parallel to the points of the pixel of y-axis, the waveform gray scale overlap-add procedure time zone is the refreshing of at least two frame waveforms Time；Computing unit, for calculating gray-scale intensity using below equation (1) and formula (2)：<mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>max</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> <mo>=</mo> <mi>s</mi> <mo>_</mo> <mi>i</mi> <mi>n</mi> <mi>i</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> <mo>+</mo> <mfrac> <mrow> <mi>s</mi> <mo>_</mo> <mi>p</mi> <mi>i</mi> <mi>o</mi> <mi>n</mi> <mi>t</mi> <mo>_</mo> <mi>n</mi> <mi>u</mi> <mi>m</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>p</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>&times;</mo> <mfrac> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>r</mi> <mi>a</mi> <mi>t</mi> <mi>e</mi> <mo>_</mo> <mi>b</mi> <mi>u</mi> <mi>f</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>&times;</mo> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>a</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </mrow><mrow> <mfrac> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>r</mi> <mi>a</mi> <mi>t</mi> <mi>e</mi> <mo>_</mo> <mi>b</mi> <mi>u</mi> <mi>f</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>=</mo> <mfrac> <mrow> <mi>s</mi> <mo>_</mo> <mi>p</mi> <mi>i</mi> <mi>o</mi> <mi>n</mi> <mi>t</mi> <mo>_</mo> <mi>n</mi> <mi>u</mi> <mi>m</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>p</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>2</mn> <mo>)</mo> </mrow> </mrow>Wherein, s_dpo_m_max_val is waveform gray scale maximum, and s_ini_m_val is waveform gray scale initial value, s_piont_ The points sample value of base when num is current, s_dpo_rate_buf are that upper waveform gray scale overlap-add procedure time zone calculates The frame number arrived, s_dpo_m_ud_val are frame number sample value, and s_dpo_p_ud_val is points sample value, and s_dpo_a_val is Intensity step value；Superpositing unit, for the gray-scale intensity value to be added in current form gray scale overlap-add procedure time zone.
- 5. oscillograph gray-scale intensity adjusting means as claimed in claim 4, it is characterised in that also include：Amending unit, it is used for The intensity step value that the computing unit is calculated is modified.
- 6. oscillograph gray-scale intensity adjusting means as claimed in claim 5, it is characterised in that the amending unit is specifically used In：It is modified according to below equation combination formula (1)：X+y=s_dpo_rate_buf-1<mrow> <mfrac> <mrow> <mi>a</mi> <mo>*</mo> <mi>x</mi> <mo>+</mo> <mrow> <mo>(</mo> <mi>a</mi> <mo>+</mo> <mn>1</mn> <mo>)</mo> </mrow> <mo>*</mo> <mi>y</mi> </mrow> <mrow> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>u</mi> <mi>d</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow> </mfrac> <mo>=</mo> <mi>s</mi> <mo>_</mo> <mi>d</mi> <mi>p</mi> <mi>o</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>m</mi> <mi>a</mi> <mi>x</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> <mo>-</mo> <mi>s</mi> <mo>_</mo> <mi>i</mi> <mi>n</mi> <mi>i</mi> <mo>_</mo> <mi>m</mi> <mo>_</mo> <mi>v</mi> <mi>a</mi> <mi>l</mi> </mrow>Wherein, x frames step value is s_dpo_a_val frame number, and y frames step value is s_dpo_a_val+1 frame number, and a represents s_ dpo_a_val。
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