CN108414987A - Optimize display methods for the radar return of VTS electronic chart display systems - Google Patents
Optimize display methods for the radar return of VTS electronic chart display systems Download PDFInfo
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- CN108414987A CN108414987A CN201711362464.7A CN201711362464A CN108414987A CN 108414987 A CN108414987 A CN 108414987A CN 201711362464 A CN201711362464 A CN 201711362464A CN 108414987 A CN108414987 A CN 108414987A
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- Prior art keywords
- radar
- value
- vts
- radar return
- electronic chart
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/04—Display arrangements
- G01S7/06—Cathode-ray tube displays or other two dimensional or three-dimensional displays
- G01S7/10—Providing two-dimensional and co-ordinated display of distance and direction
- G01S7/16—Signals displayed as intensity modulation with rectangular co-ordinates representing distance and bearing, e.g. type B
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/005—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 with correlation of navigation data from several sources, e.g. map or contour matching
Abstract
The invention discloses a kind of radar returns for VTS electronic chart display systems to optimize display methods, according to radar original video characteristic, original radar return discontinuity problem is solved by orientation accumulation first, then, according to signal boost curve lifting radar return brightness, then, it establishes radar B and shows table and real-time update；Characteristic value is finally shown according to the B of each pixel in range of views, the B that radar original echo is obtained using bilinearity difference arithmetic shows characteristic value, calculates pixel color value.It can be under the premise of ensureing that target shows size and traffic direction identical with original radar return using this method, improve the full weight after radar return superposition electronic chart, continuity, under sea chart Zoom in pattern, target still has visibility, without apparent mosaic phenomenon.
Description
Technical field
The present invention relates to a kind of radar return display methods, more particularly to being directed to VTS electronic Chart Displays system for a kind of
The radar return of system optimizes display methods.
Background technology
It is base map so that it is convenient to watch the target of radar return, operating status that the drafting of general radar return, which is with dark color,
With whole battle state display, but the display of entire situation is shown on the more rich electronic chart of element ratio in VTS system, by
It is more in electronic chart element, including various electronics navigation channels information, the color in berth, anchorage, profundal zone etc., these regions be each
It differs, if being directly superimposed radar video figure layer, echo shape, object run track, whole situation etc. can not be clearly visible；
It needs to carry out Zoom in sea chart in VTS system, same radar video is also required to Zoom in, when each on electronic chart
Pixel represent distance be less than radar data sampled point between apart from when, the display of radar return will be shown than more serious
Mosaic phenomenon, be unfavorable for operation and collision of object observing etc.；In addition to this, traditional VTS electronic charts are superimposed radar
The problems such as echo also has radar trigger data often to lose or default, and target monitoring is inaccurate.
Invention content
Goal of the invention：The present invention provides a kind of radar return optimization display methods for VTS electronic chart display systems,
Radar return superposition electricity can be improved under the premise of ensureing that target shows size and traffic direction identical with original radar return
Full weight after sub- sea chart, continuity, under sea chart Zoom in pattern, target still has visibility, without apparent Marseille
Gram phenomenon.
Technical solution：It is aobvious that the invention discloses a kind of radar return optimized overlap-adds for VTS electronic chart display systems
Show method, specifically includes following steps：
(1) orientation accumulation is carried out to radar trigger data；
(2) luminance raising is carried out to radar data；
(3) it establishes radar B and shows table and real-time update；
(4) it uses the B that bilinearity difference arithmetic obtains radar original echo to show characteristic value, calculates pixel color value；
(5) radar return image transmission display.
The step (2) includes the following steps：
(21) determine that orientation accumulates width；
(22) the radar trigger data in the width range is cached；
(23) value of each sampled point of new radar trigger data is calculated.
Wherein, the value of each sampled point of the new radar trigger data described in step (23) is to own in reverse-concave
The average value of radar trigger data.
The step (4) includes the following steps：
(41) index value that B where each pixel in range of views shows adjacent N number of value in table is obtained；
(42) B shows adjacent feature value in table where obtaining pixel；
(43) characteristic value aobvious B where calculating pixel；
(44) secondary brightness promotion is carried out to radar data；
(45) value of tetra- components of pixel ARGB is calculated.
Radar return image wherein described in step (5) is sent to VTS logging desks position by network.
Advantageous effect：Compared with prior art, beneficial effects of the present invention：1, ensureing target display size and operation side
To under the premise of identical with original radar return, the full weight after radar return superposition electronic chart is improved, continuity, color is more
Add soft beautiful；2, under sea chart Zoom in pattern, target still has visibility, without apparent mosaic phenomenon；3, divide
From radar asorbing paint and electronic Chart Display, radar asorbing paint is completed in individual server, is transferred to platform position again after the completion
Independent drawing, radar plotting server can match the platform position display terminal run under a variety of different platforms；4, the thunder after optimizing
Raw radar information is not reduced up to echo, target monitoring is more acurrate, is more suitable for the use of VTS civil information systems.
Description of the drawings
Fig. 1 is the flow chart of the present invention；
Fig. 2 is luminance raising curve graph；
Fig. 3 is that B shows table schematic diagram；
Fig. 4 is that adjacent B shows index value schematic diagram；
Fig. 5 is the radar video figure being not optimised；
Fig. 6 is the radar video figure after optimization；
Fig. 7 be Zoom in after be not optimised radar target；
Fig. 8 be Zoom in after optimize radar target.
Specific implementation mode
Below in conjunction with the accompanying drawings and invention is further described in detail.
Fig. 1 is the flow chart of the present invention, is mainly included the following steps that：
1, radar trigger data orientation accumulates：Determine that orientation accumulates width, it is assumed that accumulation width is 5, when caching runs up to 5
After a trigger data, new radar sampling data value is calculated, which is the average value of 5 accumulation radar datas, new radar number
According to the radar data orientation median that triggering orientation is 5 accumulation, the data of newly generated radar are sent to and are carried out in next step
Processing.
2, radar data luminance raising：As shown in Figure 2 according to radar signal lifting curve, the promotion of each sampled point is calculated
Size afterwards continues to generate new radar data, and it is 0~255 that radar sampling point signal, which grows from weak to strong,
R=table [R0]
Wherein R is new radar sampling data, table be luminance raising table size be 255 one-dimension arrays as shown in Fig. 2,
R0 is original radar data.
3, it establishes radar B and shows table and real-time update：The size that the B of one radar shows table be essentially fixed value as shown in figure 3,
With radar bearing quantizing range for 8192, for distance samples unit number 9000, the size that B shows table is 8192*9000, is being received
After the one or more radar trigger datas sent to step 2, using CUDA parallel computation functions, by radar data quantization and more
Newly shown in table to corresponding B.
4, bilinearity mathematic interpolation radar return shows video：Radar return picture of corresponding size is established according to view size
Plain table, by taking view resolution size 1920*1080 as an example, image pixel table (ARGB) size is 1920*1080*4, further according to double
Linear difference algorithm calculates the ARGB values of each pixel of the image, ultimately produces one whole radar return image table, specific to grasp
Steps are as follows for work：
(1) index value that B where each pixel in range of views shows adjacent four values in table is obtained：According to pixel
Azran value float types calculate the index value (int types) that B shows adjacent four azran values in table, as shown in Figure 4.
Index11=(int) iAZ*NUM+ (int) iDis
Index12=(int) iAZ*NUM+ (int) iDis+1
Index21=((int) iAZ+1) * NUM+ (int) iDis
Index22=((int) iAZ+1) * NUM+ (int) iDis+1
Wherein iAZ is the orientation values (float) of pixel, and iDis is the distance value (float) of pixel, and NUM is that B shows table
Width i.e. range cell number.
(2) B shows consecutive value in table (BTable) where obtaining pixel：Table index is shown according to four B that (1) step obtains
Value, it is V1, V2, V3, V4 to obtain corresponding B and show characteristic value：
V1=BTable [Index11]
V2=BTable [Index12]
V3=BTable [Index21]
V4=BTable [Index22]
Wherein BTable is that radar B shows table, V1, V2, and V3, V4 are that adjacent four B show characteristic value.
(3) characteristic value aobvious B where calculating pixel：Four B, which are calculated, according to the azran value of pixel shows characteristic value
Contained ratio (a, b) shows characteristic value V as shown in figure 4, obtaining the final B of the pixel further according to ratio：
V5=V1* (1-b)+V2*b
V6=V3* (1-b)+V4*b
V=V5* (1-a)+V6*a
Wherein a is equal to iAZ- (int) iAZ, and b is final result equal to iDis- (int) iDis, V.
(4) secondary brightness promotion is carried out to radar data.
(5) value of tetra- components of pixel ARGB is calculated：Characteristic value and needs are shown according to the pixel B that (3) step is calculated
The color of display calculates tetra- values of pixel ARGB.
5, radar return image transmission display：The radar return image of generation is sent to VTS logging desks position by network
Plot and display is transferred to VTS display terminals using the udp network transmission protocols here and shows.
As shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8 comparison, it can be found that the radar return directly painted according to original radar video
Compare fuzzy dimness, is not easy to observe；After applying the present invention, radar return is obviously more beautiful, bright with electronic chart contrast
It is aobvious to increase, it is suitble to observation, the radar return after in addition optimizing does not reduce raw radar information, is more suitable for the civilian information systems of VTS
System uses.
Claims (5)
1. a kind of radar return for VTS electronic chart display systems optimizes display methods, which is characterized in that including following step
Suddenly：
(1) orientation accumulation is carried out to radar trigger data；
(2) luminance raising is carried out to radar data；
(3) it establishes radar B and shows table and real-time update；
(4) it uses the B that bilinearity difference arithmetic obtains radar original echo to show characteristic value, calculates pixel color value；
(5) radar return image transmission display.
2. a kind of radar return for VTS electronic chart display systems according to claim 1 optimizes display methods,
It is characterized in that, the step (2) includes the following steps：
(21) determine that orientation accumulates width；
(22) the radar trigger data in the width range is cached；
(23) value of each sampled point of new radar trigger data is calculated.
3. a kind of radar return for VTS electronic chart display systems according to claim 2 optimizes display methods,
It is characterized in that, the value of each sampled point of the new radar trigger data described in step (23) is all radars in reverse-concave
The average value of trigger data.
4. a kind of radar return for VTS electronic chart display systems according to claim 1 optimizes display methods,
It is characterized in that, the step (4) includes the following steps：
(41) index value that B where each pixel in range of views shows adjacent N number of value in table is obtained；
(42) B shows adjacent feature value in table where obtaining pixel；
(43) characteristic value aobvious B where calculating pixel；
(44) secondary brightness promotion is carried out to radar data；
(45) value of tetra- components of pixel ARGB is calculated.
5. a kind of radar return for VTS electronic chart display systems according to claim 1 optimizes display methods,
It is characterized in that, the radar return image described in step (5) is sent to VTS logging desks position by network.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110687536A (en) * | 2019-11-04 | 2020-01-14 | 深圳市华讯方舟雷达技术装备有限公司 | Ship radar video data storage and drawing method |
| CN111901190A (en) * | 2020-07-08 | 2020-11-06 | 中国人民解放军32181部队 | Fault detection method and system for transceiver module of communication extension |
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| CN104360319A (en) * | 2014-12-03 | 2015-02-18 | 中国电子科技集团公司第二十八研究所 | CUDA platform-based radar B-display processing method |
| CN104921756A (en) * | 2015-06-08 | 2015-09-23 | 深圳市恩普电子技术有限公司 | Improved digital scanning conversion method |
| CN105954726A (en) * | 2016-04-26 | 2016-09-21 | 南京鹏力系统工程研究所 | Multi-radar station radar video rendering method based on stepless zooming of GPU |
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2017
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Patent Citations (4)
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| US20090287402A1 (en) * | 2008-05-15 | 2009-11-19 | Garmin Ltd. | Virtual traffic sensors |
| CN104360319A (en) * | 2014-12-03 | 2015-02-18 | 中国电子科技集团公司第二十八研究所 | CUDA platform-based radar B-display processing method |
| CN104921756A (en) * | 2015-06-08 | 2015-09-23 | 深圳市恩普电子技术有限公司 | Improved digital scanning conversion method |
| CN105954726A (en) * | 2016-04-26 | 2016-09-21 | 南京鹏力系统工程研究所 | Multi-radar station radar video rendering method based on stepless zooming of GPU |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687536A (en) * | 2019-11-04 | 2020-01-14 | 深圳市华讯方舟雷达技术装备有限公司 | Ship radar video data storage and drawing method |
| CN110687536B (en) * | 2019-11-04 | 2023-10-27 | 武汉华讯国蓉科技有限公司 | Ship radar video data storage and drawing method |
| CN111901190A (en) * | 2020-07-08 | 2020-11-06 | 中国人民解放军32181部队 | Fault detection method and system for transceiver module of communication extension |
| CN111901190B (en) * | 2020-07-08 | 2021-09-24 | 中国人民解放军32181部队 | Fault detection method and system for transceiver module of communication extension |
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Application publication date: 20180817 |
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