CN107607783B - Efficient and flexible radar spectrum display method - Google Patents
Efficient and flexible radar spectrum display method Download PDFInfo
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- CN107607783B CN107607783B CN201710776747.XA CN201710776747A CN107607783B CN 107607783 B CN107607783 B CN 107607783B CN 201710776747 A CN201710776747 A CN 201710776747A CN 107607783 B CN107607783 B CN 107607783B
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- 238000001228 spectrum Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000009975 flexible effect Effects 0.000 title claims abstract description 15
- 238000013507 mapping Methods 0.000 claims abstract description 17
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 238000003491 array Methods 0.000 abstract 1
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- 238000010586 diagram Methods 0.000 description 2
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Abstract
The invention discloses a high-efficiency and flexible radar spectrum display method, which comprises the following steps: s1, mapping each sampling frequency value on the frequency axis to the corresponding display pixel value, and connecting the sampling points with the same pixel value after mapping in series by using a single linked list, wherein the data structure of the sampling points is represented by Node, and an array containing w Node pointers is used as the head array of the single linked list and is marked as A, wherein w is the pixel width of the frequency axis; and S2, drawing a spectrogram, traversing the A arrays, finding a sampling point meeting the requirement in the single-direction chain table represented by each A array element, and drawing the sampling point on the display screen according to the pixel value mapped by the sampling point. According to the invention, a corresponding linked list data structure is established according to the pixel width of the spectrum display area, and the reasonable abstraction of the sampling points enables the radar spectrum display to be efficient, flexible and accurate.
Description
Technical field
The present invention relates to radar frequency spectrum field of display technology, and in particular to a kind of radar frequency spectrum display side of high efficient and flexible
Method.
Background technique
It is more and more to high bandwidth, the analysis scene of high-resolution signal in radar signal analysis, and high bandwidth, high-resolution
How efficiently, flexibly, accurately the characteristics of rate signal is that sampled point is especially more, and data volume is especially big, show in signal analysis
Signal spectrum is a main development trend.
Currently, the radar signal frequency spectrum of mainstream shows that first using frequency as x-axis, signal strength is y-axis, establishes two-dimensional linear
Then space calculates the seat that the sampled point is mapped in the two-dimensional space just established according to the frequency of sampled point and intensity value
Mark finally connects to form spectrum curve by all mapping points or by the filtered mapping point of certain filter conditions.And root
It is exactly after directly going traversal sample point data to compare sampled point mapping according to the implementation method that location of pixels reverse-locates sampled point
Value.
Since the screen resolution of display equipment is limited, so many sampled points can repeat when there are many signal sampling point
It is mapped on identical screen position, it is inefficient that each frequency spectrum data point all when updating, which will be drawn,.And work as user
When interacting with spectrum curve, such as on acquisition frequency spectrum when maximum or minimum value of some point, the point after passing through mapping is reverse-located
Sample point data is not flexible and inefficient.
Summary of the invention
The purpose of the present invention is to solve drawbacks described above in the prior art, provide a kind of radar frequency spectrum of high efficient and flexible
Display methods improves radar frequency spectrum and shows by establishing a kind of Data Structure and Algorithm of high efficient and flexible come management of frequency spectrum data
In efficiency and flexibility.
The purpose of the present invention can be reached by adopting the following technical scheme that:
A kind of radar frequency spectrum display methods of high efficient and flexible, the method include the following steps:
S1, each sample frequency value on frequency axis is mapped to corresponding display pixel value, after mapping
The identical sampled point of pixel value is together in series with a single-track link table, wherein the data structure of sampled point indicates with Node, with containing
There is head array of the array of w Node pointer as single linked list, be denoted as A, wherein w is the pixel wide of frequency axis；
S2, spectrogram is drawn, traverses A array, looks for one to meet need in the single-track link table represented by each A array element
The sampled point wanted, and be plotted on display screen according to the pixel value that this sampled point maps.
Further, the data structure of pixel sampling point information Node is as follows:
Further, the method further includes the following steps:
S3, when user clicks selected Frequency point on frequency spectrum, be directly targeted in A array according to the pixel value being clicked
Element, i.e., be directly targeted to the single-track link table of corresponding identical frequency mapping value simultaneously, then therefrom selection meets and needs
Sampled point realizes the function of positioning sampled point as the sampled point positioned.
The present invention has the following advantages and effects with respect to the prior art:
1) after each sample point data updates in the prior art, then each sampled point will be traversed by drawing spectrum curve
It is plotted on screen, and after applying the present invention, it at most only needs to draw frequency axis pixel wide w times, and w is less than equal to screen
Resolution width, improve very much drawing efficiency greatly in this way, when sampled point is more, efficiency raising is become apparent from.
2) it is inefficient and inflexible accurate that the prior art, which reverse-locates sampled point, and after applying the present invention, it is reversed fixed
Position sampled point is straightforward, the operations such as tracking sampling point data also very simple and flexible, since each sampling is by abstraction
At the data structure of Node type, this is also brought convenience to the management of sampled point, is increased sampled point attribute and is only needed in Node number
According to increasing a field in structure, the final invention improves during frequency spectrum show the efficiency of data processing and flexible
Property.
Detailed description of the invention
Fig. 1 is the spectrum diagram of certain signal；
Fig. 2 is the single linked list schematic diagram of w Node array of pointers composition；
Fig. 3 is a kind of process step figure of the radar frequency spectrum display methods of high efficient and flexible disclosed by the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment
Such as Fig. 1, x-axis is frequency axis, and y-axis is intensity axis, and the pixel wide of frequency axis is w.When initialization centre frequency and
Frequency resolution is determining, that is, frequency range and frequency interval determine, due to the high bandwidth, high-resolution the case where
Under, sampled data points are especially more, after some time it is possible to reach hundreds of thousands even a points up to a million, so when corresponding frequency values are mapped to x
Value after much mapping when axis is identical, that is to say, that it can be superimposed, it, can be warp in order to manage the point of these superpositions
The identical sampled point of pixel value is together in series with a single-track link table after crossing mapping.So how many such single-track link table again
, when sampled point is especially more, each pixel on the frequency axis has frequency mapping up, so be up to w is a in this way
Single-track link table.It is assumed that indicating the data structure of a sampled point with Node, can be defined as follows with programming language:
The data structure of pixel sampling point information Node is as follows:
It uses the array for containing w Node pointer as the head array of single linked list, is denoted as A.It first will be all in A when initialization
Value is set as empty, first all sampled point Node data is established according to frequency range and frequency interval, then according to frequency order time
All sampled point Node data are gone through, if the pixel value after frequency mapping corresponds to the element in A as sky, current Node is referred to
The address assignment of needle array gives this element, and current Node array of pointers is otherwise connected to single linked list pointed by this element
Rearmost end.As shown in Figure 2.
After data structure establishes, the frequency spectrum that data structure executes according to this is described below and draws display operation.It is first
Spectrogram is drawn, what it is due to the element representation in A array is the single-track link table for having identical frequency mapping value, so drawing frequency
Spectrogram only needs to be traversed for A array, looks for one to meet the sampled point needed in the single-track link table represented by each A array element,
And it is plotted on screen according to the mapping value of this element.For position sampled point function, when user on frequency spectrum point
When hitting to select Frequency point, what user provided is the pixel value in spectrogram, and sample point data corresponding to each pixel
It has stored in A array, it is possible to the element in A array is directly targeted to according to the pixel value being clicked, it is also just directly fixed
The single-track link table of corresponding identical frequency mapping value is arrived in position, and the sampled point for meeting needs is then therefrom selected to adopt as what is positioned
Sampling point.
In conclusion the prior art directly operates each sample point data, to complete the phase that radar frequency spectrum is shown
Function is answered, it is inefficient not flexible, and the present invention first establishes corresponding linked list data structure according to frequency spectrum viewing area pixel wide, and
Reasonably being abstracted to sampled point shows that radar frequency spectrum efficiently, flexibly, accurately.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (2)
1. a kind of radar frequency spectrum display methods of high efficient and flexible, which is characterized in that the method includes the following steps:
S1, each sample frequency value on frequency axis is mapped to corresponding display pixel value, the pixel after mapping
It is worth identical sampled point to be together in series with a single-track link table, wherein the data structure of sampled point indicates with Node, with containing w
Head array of the array of a Node pointer as single linked list, is denoted as A, and wherein w is the pixel wide of frequency axis, the data knot of Node
Structure is as follows:
S2, spectrogram is drawn, traverses A array, look for one to meet needs in the single-track link table represented by each A array element
Sampled point, and be plotted on display screen according to the pixel value that this sampled point maps.
2. a kind of radar frequency spectrum display methods of high efficient and flexible according to claim 1, which is characterized in that the method
Further include the following steps:
S3, when user clicks selected Frequency point on frequency spectrum, the member in A array is directly targeted to according to the pixel value being clicked
Element is directly targeted to the single-track link table of corresponding identical frequency mapping value simultaneously, then therefrom selection meets the sampling needed
Point realizes the function of positioning sampled point as the sampled point positioned.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4777651A (en) * | 1984-06-25 | 1988-10-11 | Tektronix, Inc. | Method of pixel to vector conversion in an automatic picture coding system |
| US5872902A (en) * | 1993-05-28 | 1999-02-16 | Nihon Unisys, Ltd. | Method and apparatus for rendering of fractional pixel lists for anti-aliasing and transparency |
| CN101540053A (en) * | 2009-04-10 | 2009-09-23 | 山东大学 | Method for reconstructing arbitrary tangent planes by nonparallel faultage image sequence |
| CN102194641A (en) * | 2010-03-16 | 2011-09-21 | 株式会社岛津制作所 | Mass analysis data processing method and mass analysis data processing apparatus |
| CN102576542B (en) * | 2009-10-23 | 2014-02-12 | 高通股份有限公司 | Method and device for determining upperband signal from narrowband signal |
| CN103631582A (en) * | 2013-11-06 | 2014-03-12 | 西安理邦科学仪器有限公司 | Graph drawing method and system based on WPF technology |
| CN103729873A (en) * | 2013-12-31 | 2014-04-16 | 天津大学 | Content-aware ambient light sampling method |
| CN106024000A (en) * | 2016-05-23 | 2016-10-12 | 苏州大学 | End-to-end voice encryption and decryption method based on frequency spectrum mapping |
-
2017
- 2017-09-01 CN CN201710776747.XA patent/CN107607783B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4777651A (en) * | 1984-06-25 | 1988-10-11 | Tektronix, Inc. | Method of pixel to vector conversion in an automatic picture coding system |
| US5872902A (en) * | 1993-05-28 | 1999-02-16 | Nihon Unisys, Ltd. | Method and apparatus for rendering of fractional pixel lists for anti-aliasing and transparency |
| CN101540053A (en) * | 2009-04-10 | 2009-09-23 | 山东大学 | Method for reconstructing arbitrary tangent planes by nonparallel faultage image sequence |
| CN102576542B (en) * | 2009-10-23 | 2014-02-12 | 高通股份有限公司 | Method and device for determining upperband signal from narrowband signal |
| CN102194641A (en) * | 2010-03-16 | 2011-09-21 | 株式会社岛津制作所 | Mass analysis data processing method and mass analysis data processing apparatus |
| CN103631582A (en) * | 2013-11-06 | 2014-03-12 | 西安理邦科学仪器有限公司 | Graph drawing method and system based on WPF technology |
| CN103729873A (en) * | 2013-12-31 | 2014-04-16 | 天津大学 | Content-aware ambient light sampling method |
| CN106024000A (en) * | 2016-05-23 | 2016-10-12 | 苏州大学 | End-to-end voice encryption and decryption method based on frequency spectrum mapping |
Non-Patent Citations (1)
| Title |
|---|
| 一个分布式图形图象处理系统的设计与实现;冯雪山;《计算机工程与应用》;19901127;全文 * |
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