CN108828577A - A kind of imaging method of radar, device, system and storage medium - Google Patents
A kind of imaging method of radar, device, system and storage medium Download PDFInfo
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- CN108828577A CN108828577A CN201810338912.8A CN201810338912A CN108828577A CN 108828577 A CN108828577 A CN 108828577A CN 201810338912 A CN201810338912 A CN 201810338912A CN 108828577 A CN108828577 A CN 108828577A
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
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- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
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- Radar, Positioning & Navigation (AREA)
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Abstract
The invention discloses a kind of imaging method of radar, device, system and storage mediums, are related to radar imagery field.This method includes：The azimuth information for obtaining target, obtains the spatial variant models of target according to azimuth information；Equivalence replacement processing is carried out according to variable of the space-variant position of radar to spatial variant models, obtains the non-spatial variant models of target；The bearing images of target are obtained according to non-spatial variant models.Imaging method, device, system and the storage medium of a kind of radar provided by the invention, it can be avoided the time-varying because of radar platform speed, lead to space-variant of the radar along course position, and then lead to the problem that image focus quality declines and positioning is inaccurate, equivalence replacement processing only is carried out to spatial variant models simultaneously, does not need to carry out cumbersome interpolation processing, has operand small, treatment effeciency is high, and does not need the advantages of excessive equipment cost is put into.
Description
Technical field
The present invention relates to radar imagery fields more particularly to a kind of imaging method of radar, device, system and storage to be situated between
Matter.
Background technique
Currently, existing radar system in imaging, due to the time-varying of radar platform speed, easily leads to radar along course position
The space-variant set, and then image focus quality is caused to decline and position inaccurate.When existing solution is according to radar platform
Speed change degree adjusts radar repetition rate in real time, is uniformly distributed sampling location along course, or handle collects on space-variant position
Data interpolating to non-empty displacement set, to eliminate orientation space-variant.
However, adjustment radar repetition rate increases the complexity and cost of equipment in real time, and handle is adopted on space-variant position
The data interpolating collected is set to non-empty displacement, then big to data complex interpolation arithmetic amount, treatment effeciency is low.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of imaging method of radar,
Device, system and storage medium.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of imaging method of radar, including：
The azimuth information for obtaining target, obtains the spatial variant models of the target according to the azimuth information；
Equivalence replacement processing is carried out according to variable of the space-variant position of the radar to the spatial variant models, obtains the mesh
The non-spatial variant models of target；
The bearing images of the target are obtained according to the non-spatial variant models.
The beneficial effects of the invention are as follows：A kind of imaging method of radar provided by the invention passes through the space-variant position of radar
Equivalence replacement is carried out to the variables of spatial variant models, and is imaged according to the non-spatial variant models obtained after replacement, can be avoided because
The time-varying of radar platform speed leads to space-variant of the radar along course position, and then image focus quality is caused to decline and position not
Quasi- problem, while equivalence replacement processing only is carried out to spatial variant models, it does not need to carry out cumbersome interpolation processing, there is operation
The advantages of measuring small, treatment effeciency height, and not needing excessive equipment cost investment.
The another technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of imaging device of radar, including：
Acquiring unit, for obtaining the azimuth information of target；
Processing unit, for obtaining the spatial variant models of the target according to the azimuth information, and according to the radar
Space-variant position carries out equivalence replacement processing to the variable of the spatial variant models, obtains the non-spatial variant models of the target；
Imaging unit, for obtaining the bearing images of the target according to the non-spatial variant models.
The beneficial effects of the invention are as follows：A kind of imaging device of radar provided by the invention passes through the space-variant position of radar
Equivalence replacement is carried out to the variables of spatial variant models, and is imaged according to the non-spatial variant models obtained after replacement, can be avoided because
The time-varying of radar platform speed leads to space-variant of the radar along course position, and then image focus quality is caused to decline and position not
Quasi- problem, while equivalence replacement processing only is carried out to spatial variant models, it does not need to carry out cumbersome interpolation processing, there is operation
The advantages of measuring small, treatment effeciency height, and not needing excessive equipment cost investment.
The another technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of imaging system of radar, including：Radar, display terminal and as described in any in above-mentioned technical proposal at
As device, the radar obtains the azimuth information of the target, the display terminal is for showing the mesh for detecting target
Target bearing images.
The another technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of storage medium is stored with instruction in the storage medium, when computer reads described instruction, makes the meter
Calculation machine executes the method as described in any in above-mentioned technical proposal.
The advantages of additional aspect of the invention, will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or practice is recognized through the invention.
Detailed description of the invention
Fig. 1 is a kind of flow diagram that the embodiment of the imaging method of radar provides of the present invention；
Fig. 2 is a kind of flow diagram that the embodiment of the imaging method of radar provides of the present invention；
Fig. 3 is a kind of flow diagram that the embodiment of the imaging method of radar provides of the present invention；
Fig. 4 is a kind of flow diagram that the embodiment of the imaging method of radar provides of the present invention；
Fig. 5 is a kind of course schematic diagram that the embodiment of the imaging method of radar provides of the present invention；
Fig. 6 is a kind of structural framing figure that the embodiment of the imaging device of radar provides of the present invention；
Fig. 7 is a kind of structural schematic diagram that the embodiment of the imaging system of radar provides of the present invention.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and illustrated embodiment is served only for explaining the present invention,
It is not intended to limit the scope of the present invention.
As shown in Figure 1, for a kind of flow diagram that the embodiment of the imaging method of radar provides of the present invention, this method packet
It includes：
S1 obtains the azimuth information of target, obtains the spatial variant models of target according to azimuth information.
It should be noted that target refers to the object of radar detection, the azimuth information of target refers to object
Geographical location information, such as SAR (synthetic aperture radar), when detecting target, the orientation that target can be obtained according to detection echo is sat
Oblique distance etc. between mark, target and the antenna phase center of SAR, these are exactly that the azimuth information of target can according to azimuth information
To establish the fundamental frequency echo formula of target, the i.e. spatial variant models of target.
It should be understood that the type of the azimuth information of its target obtained of unused radar is also different, for example, it is also possible to obtain mesh
Mark vertical range, the angle of squint etc. between the antenna phase center of radar, these all can serve as to establish spatial variant models according to
According to.
S2 carries out equivalence replacement processing according to variable of the space-variant position of radar to spatial variant models, obtains the non-empty of target
Varying model.
It should be noted that for former spatial variant models, it is assumed that variable a, then equivalence replacement processing refer to be exactly a is replaced
Change A into, A is according to the space-variant position equivalent orientation time come out.
If should be understood that radar during the motion, time-varying does not occur for speed, then the space-variant of position will not be generated,
And time-varying occurs, it is meant that the transformation of radar speed, then can be using the variable of spatial variant models as integration variable, to velocity variations
The ratio of front and back is integrated, and new variate-value is obtained, so that it may as the variable after equivalence replacement.
Based on this, it will be understood by those skilled in the art that can also be changed to speed, to the speed point of different directions
Amount or acceleration etc. are integrated, to realize that equivalence replacement is handled.
It should be understood that needing to handle replaced spatial variant models after variable is replaced, non-space-variant mould is obtained
Type, for example, can carry out Fourier transformation using replaced variable as integration variable to replaced spatial variant models, can obtain
To non-spatial variant models.
S3 obtains the bearing images of target according to non-spatial variant models.
It should be noted that method identical with the bearing images for obtaining target according to spatial variant models can be used, obtain
The bearing images of target.
For example, the processing of orientation pulse pressure can be carried out to non-spatial variant models, the expression formula of bearing images is obtained, further according to orientation
The expression formula of image obtains the bearing images of target.
A kind of imaging method of radar provided in this embodiment, by the space-variant position of radar to the variables of spatial variant models into
Row equivalence replacement, and be imaged according to the non-spatial variant models obtained after replacement, it can be avoided the time-varying because of radar platform speed,
Lead to space-variant of the radar along course position, and then lead to the problem that image focus quality declines and positioning is inaccurate, while being pair
Spatial variant models carry out equivalence replacement processing, do not need to carry out cumbersome interpolation processing, have operand small, and treatment effeciency is high, and
Not the advantages of not needing excessive equipment cost investment.
Optionally, in some embodiments, as shown in Fig. 2, step S1 can specifically include：
S11 obtains the vertical range between the azimuthal coordinates and target and radar of target.
It should be noted that the azimuthal coordinates of target are and the coordinate of radar orientation under the same coordinate system, target with
Vertical range between radar refer between the straight line parallel with radar route and radar route where target it is vertical away from
From.
S12 obtains the spatial variant models of target according to azimuthal coordinates and vertical range.
It should be understood that since radar is the spatial variant models of target in order to obtain in movement, in the azimuthal coordinates for obtaining target
After vertical range, it is also necessary to obtain target jointly according to speed, the frequency of echo of radar etc. of radar at various moments
Spatial variant models.
Optionally, in some embodiments, as shown in figure 3, step S2 can specifically include：
The true bearing time of spatial variant models is replaced with the equivalent orientation time by S21, and the equivalent orientation time is according to radar
Space-variant position equivalence replacement obtains, wherein the true bearing time is the variable of spatial variant models.
It should be noted that the variable of spatial variant models is the true bearing time, then according to space-variant position, it can be by right
The actual speed of radar and the ratio of initial velocity are integrated, and the equivalent orientation time of equivalence replacement is obtained, if radar
Speed time-varying is equivalent to produce the equivalent orientation time of equivalence replacement in space-variant position then ratio is not 1.
It should be understood that equivalence replacement, example can also be carried out in component, acceleration of a direction etc. according to the speed of radar
Such as, speed can be decomposed, further according to the component of preferential direction, carries out equivalence replacement according to the method described above.
Specifically, it is assumed that radar is moved along a direction, then for on direction direction at an angle, speed
Component is then a, then the speed of radar changes when the speed time-varying of radar, velocity component can also change, then
Using the time as variable, the ratio of velocity component twice is integrated, so that it may when obtaining the equivalent orientation at the space-variant position
Between,
It is appreciated that the above method can realize that equivalence replacement is handled.
S22 carries out Fourier transformation to replaced spatial variant models using the equivalent orientation time as integration variable, obtains target
Non- spatial variant models.
It should be understood that the azimuth spectrum expression formula using orientation frequency as variable, i.e. target can be obtained after carrying out Fourier transformation
Non- spatial variant models, i.e., azimuth spectrum ideally, ideal bearing images can be obtained in the processing of subsequent progress orientation pulse pressure.
Optionally, in some embodiments, as shown in figure 4, step S3 can specifically include：
S31 carries out the processing of orientation pulse pressure to non-spatial variant models, obtains the bearing images expression formula of target.
For example, frequency domain orientation pulse pressure function can be multiplied with the azimuth spectrum expression formula of non-spatial variant models and carry out IFFT
Processing, so that it may obtain the bearing images expression formula of target.
S32 is imaged target according to bearing images expression formula, obtains the bearing images of target.
It is appreciated that optionally, in some embodiments, may include as walked some or all of in the various embodiments described above
Suddenly.
It is illustrated below with a specific example.
As shown in figure 5, in figure, radar is along the direction flight for being parallel to X-axis, Desired Track for the course schematic diagram of radar
It is X-axis in floor projection.Assuming that point target σ is distributed on this line there are a straight line parallel with X-axis on ground, it should
The vertical range of straight line and radar route is Rs, the coordinate of point target σ in the X-axis direction is Xn, it is assumed that t moment, radar edge
The speed in course is V (t), then tmMoment, the fundamental frequency echo that radar receives can be：
Wherein, λ is the wavelength of fundamental frequency echo.
Next, in above-mentioned fundamental frequency echo expression formula, variable is t to formula (1) progress variable replacementm, tmIt is true bearing
Time, then can be to tmCarry out equivalence replacement processing.
Assuming that V0=V (t) |T=0, then can replace as follows：
Wherein, TmIt is exactly the space-variant position equivalent equivalent orientation time out according to radar, formula (2) shows TmFor tmList
Function is adjusted, then wushu (2), which substitutes into formula (1), to be obtained：
Then with TmFor integration variable, Fourier transformation is carried out to formula (3)：
Wherein, f is orientation frequency, and S (f) is azimuth spectrum.Formula (4) is that variable replacement back side spatial variant models are transformed to
The azimuth spectrum expression formula of non-spatial variant models.According to formula (4), the azimuth spectrum of non-spatial variant models, i.e., side ideally are obtained
Position spectrum.Ideal bearing images can be obtained in subsequent progress orientation pulse pressure.
It should be noted that making orientation FFT to initial data is along course uniform motion for spatial variant models
Assuming that lower progress, the non-space-variant of position of orientation.V (t)=V at this time0, substitute into formula (1) and obtain：
There is orientation space-variant phenomenon in practice, speed is time-varying along course, and there are certain errors for orientation FFT processing.It is right
Than formula (3) and formula (5), formula (3) is that argument character is different from the difference of formula (5), and formula (5) asks frequency spectrum with tmFor integration variable
From-∞ →+∞ weighted quadrature point, it was found from calculus knowledge：Formula (3) is if can be with TmIt is asked for integration variable from-∞ →+∞ weighting
Integral, then available and formula (5) identical frequency spectrum.
Then, to obtaining with TmThe processing of orientation pulse pressure is carried out for the non-spatial variant models of variable.
Shown in frequency domain orientation pulse pressure function such as formula (6)：
K in formula (6)aFor orientation frequency modulation rate：
Formula (4) is multiplied by formula (6), and IFFT, obtains：
S(Xn)=IFFT [S (f) H (f)] (8)
S(Xn) it is bearing images expression formula.Since formula (4) are non-space-variant desirable orientation frequency spectrum, formula (6) is orientation frequency modulation
Rate kaCanonical function form, error is not present, thus according to the bearing images that formula (8) obtains be it is ideal, there is no dissipate
Burnt and position error.
The present embodiment initially sets up spatial variant models and echo-signal expression formula, then by variable replacement, along course sky
Varying model is transformed to obtain azimuth spectrum ideally along the non-spatial variant models in course.The method performance and plural interpolation mentioned
Quite, but treatment effeciency is higher than plural interpolation, and mentioned method is for having stronger robustness along the imaging of course space-variant.
As shown in fig. 6, for a kind of structural framing figure that the embodiment of the imaging device of radar provides of the present invention, imaging dress
Set including：
Acquiring unit 11, for obtaining the azimuth information of target.
Processing unit 12, for obtaining the spatial variant models of target according to azimuth information, and according to the space-variant position pair of radar
The variable of spatial variant models carries out equivalence replacement processing, obtains the non-spatial variant models of target.
Imaging unit 13, for obtaining the bearing images of target according to non-spatial variant models.
It should be noted that the present embodiment is product example corresponding with the various embodiments described above, to each in this present embodiment
Partial explanation can with reference in above-described embodiment pair it should be noted that details are not described herein.
A kind of imaging device of radar provided in this embodiment, by the space-variant position of radar to the variables of spatial variant models into
Row equivalence replacement, and be imaged according to the non-spatial variant models obtained after replacement, it can be avoided the time-varying because of radar platform speed,
Lead to space-variant of the radar along course position, and then lead to the problem that image focus quality declines and positioning is inaccurate, while being pair
Spatial variant models carry out equivalence replacement processing, do not need to carry out cumbersome interpolation processing, have operand small, and treatment effeciency is high, and
Not the advantages of not needing excessive equipment cost investment.
Optionally, in some embodiments, acquiring unit 11 be specifically used for obtain target azimuthal coordinates and target with
Vertical range between radar.
Processing unit 12 is specifically used for obtaining the spatial variant models of target according to azimuthal coordinates and vertical range.
Optionally, in some embodiments, processing unit 12 is specifically used for replacing the true bearing time of spatial variant models
For the equivalent orientation time, the equivalent orientation time obtains according to the space-variant position equivalent transformation of radar, wherein the true bearing time is
The variable of spatial variant models, then Fourier transformation is carried out to replaced spatial variant models using the equivalent orientation time as integration variable, it obtains
To the non-spatial variant models of target.
Optionally, in some embodiments, imaging unit 13 is specifically used for carrying out the processing of orientation pulse pressure to non-spatial variant models,
The bearing images expression formula of target is obtained, and target is imaged according to bearing images expression formula, obtains the orientation diagram of target
Picture.
As shown in fig. 7, for a kind of structural schematic diagram that the embodiment of the imaging system of radar provides of the present invention, the imaging system
System includes：Any imaging device 1 in radar 2, display terminal 3, receiving end 4 and such as the various embodiments described above, radar 2 is for visiting
Target is surveyed, the azimuth information of target is obtained, display terminal 3 is used for the bearing images of displaying target.
Radar 2 is sent to receiving end 4 after detecting to target, by detection information, and detection information is again sent out in receiving end
Imaging device 1 is given, imaging device 1 can be believed for host, the server etc. calculated with graphics processing function to detection
After breath is handled, radar image has been obtained, has then been shown by display terminal 3, display terminal 3 can be for image
The equipment such as computer, mobile phone, the tablet computer of display function.
In other embodiments of the invention, a kind of storage medium is also provided, instruction is stored in storage medium, works as calculating
When machine-readable instruction fetch, execute computer such as method any in the various embodiments described above.
Reader should be understood that in the description of this specification reference term " one embodiment ", " is shown " some embodiments "
The description of example ", " specific example " or " some examples " etc. mean specific features described in conjunction with this embodiment or example, structure,
Material or feature are included at least one embodiment or example of the invention.In the present specification, above-mentioned term is shown
The statement of meaning property need not be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described
It may be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this
The technical staff in field can be by the spy of different embodiments or examples described in this specification and different embodiments or examples
Sign is combined.
It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description
The specific work process with unit is set, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.
Unit may or may not be physically separated as illustrated by the separation member, shown as a unit
Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks
On unit.It can select some or all of unit therein according to the actual needs to realize the mesh of the embodiment of the present invention
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, is also possible to two or more units and is integrated in one unit.It is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.
It, can if integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product
To be stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention substantially or
Say that all or part of the part that contributes to existing technology or the technical solution can embody in the form of software products
Out, which is stored in a storage medium, including some instructions are used so that a computer equipment
(can be personal computer, server or the network equipment etc.) executes all or part of each embodiment method of the present invention
Step.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-OnlyMemory), is deposited mobile hard disk at random
The various media that can store program code such as access to memory (RAM, RandomAccessMemory), magnetic or disk.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or substitutions,
These modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of imaging method of radar, which is characterized in that including：
The azimuth information for obtaining target, obtains the spatial variant models of the target according to the azimuth information；
Equivalence replacement processing is carried out according to variable of the space-variant position of the radar to the spatial variant models, obtains the target
Non- spatial variant models；
The bearing images of the target are obtained according to the non-spatial variant models.
2. imaging method according to claim 1, which is characterized in that the azimuth information for obtaining target, according to described
Azimuth information obtains the spatial variant models of the target, specifically includes：
Obtain the vertical range between the azimuthal coordinates and the target and the radar of target；
According to the azimuthal coordinates and the vertical range, the spatial variant models of the target are obtained.
3. imaging method according to claim 1, which is characterized in that the space-variant position according to the radar is to described
The variable of spatial variant models carries out equivalence replacement processing, obtains the non-spatial variant models of the target, specifically includes：
The true bearing time of the spatial variant models is replaced with into the equivalent orientation time, the equivalent orientation time is according to the thunder
The space-variant position equivalence replacement reached obtains, wherein the true bearing time is the variable of the spatial variant models；
Fourier transformation is carried out to the replaced spatial variant models using the equivalent orientation time as integration variable, is obtained described
The non-spatial variant models of target.
4. imaging method according to any one of claim 1 to 3, which is characterized in that described according to the non-space-variant mould
Type obtains the bearing images of the target, specifically includes：
Pulse pressure processing in orientation is carried out to the non-spatial variant models, obtains the bearing images expression formula of the target；
The target is imaged according to the bearing images expression formula, obtains the bearing images of the target.
5. a kind of imaging device of radar, which is characterized in that including：
Acquiring unit, for obtaining the azimuth information of target；
Processing unit, for obtaining the spatial variant models of the target according to the azimuth information, and according to the space-variant of the radar
Position carries out equivalence replacement processing to the variable of the spatial variant models, obtains the non-spatial variant models of the target；
Imaging unit, for obtaining the bearing images of the target according to the non-spatial variant models.
6. imaging device according to claim 5, which is characterized in that the acquiring unit is specifically used for obtaining the side of target
Vertical range between position coordinate and the target and the radar；
The processing unit is specifically used for obtaining the space-variant mould of the target according to the azimuthal coordinates and the vertical range
Type.
7. imaging device according to claim 5, which is characterized in that the processing unit is specifically used for the space-variant mould
The true bearing time of type replaces with the equivalent orientation time, and the equivalent orientation time is equivalent according to the space-variant position of the radar
Transformation obtains, wherein the true bearing time be the spatial variant models variable, then with the equivalent orientation time be integral
Variable carries out Fourier transformation to the replaced spatial variant models, obtains the non-spatial variant models of the target.
8. imaging device according to any one of claims 5 to 7, which is characterized in that the imaging unit is specifically used for
Pulse pressure processing in orientation is carried out to the non-spatial variant models, obtains the bearing images expression formula of the target, and according to the orientation
The target is imaged in image expression formula, obtains the bearing images of the target.
9. a kind of imaging system of radar, which is characterized in that including：Appoint in radar, display terminal and such as claim 6 to 8
Imaging device described in one, the radar obtain the azimuth information of the target, the display terminal is used for detecting target
In the bearing images for showing the target.
10. a kind of storage medium, which is characterized in that instruction is stored in the storage medium, when computer reads described instruction
When, so that the computer is executed method according to any one of claims 1 to 4.
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| CN109613534A (en) * | 2018-12-12 | 2019-04-12 | 北京无线电测量研究所 | A kind of orientation NCS imaging method, system, medium and equipment based on orientation deramp |
| CN109613535A (en) * | 2018-12-12 | 2019-04-12 | 北京无线电测量研究所 | Orientation NCS imaging method, system, medium and equipment based on envelope correction |
| CN111537991A (en) * | 2020-05-20 | 2020-08-14 | 北京无线电测量研究所 | Processing method for displaying target containing azimuth information in radar view |
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| 邢涛等: ""基于非均匀FFT的超宽带合成孔径雷达高校成像算法"", 《系统工程与电子技术》 * |
| 邢涛等: ""基于非均匀快速傅里叶变换的SAR方位向运动补偿算法"", 《电子与信息学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109613534A (en) * | 2018-12-12 | 2019-04-12 | 北京无线电测量研究所 | A kind of orientation NCS imaging method, system, medium and equipment based on orientation deramp |
| CN109613535A (en) * | 2018-12-12 | 2019-04-12 | 北京无线电测量研究所 | Orientation NCS imaging method, system, medium and equipment based on envelope correction |
| CN109613535B (en) * | 2018-12-12 | 2022-05-13 | 北京无线电测量研究所 | Orientation NCS imaging method, system, medium and equipment based on envelope correction |
| CN111537991A (en) * | 2020-05-20 | 2020-08-14 | 北京无线电测量研究所 | Processing method for displaying target containing azimuth information in radar view |
| CN111537991B (en) * | 2020-05-20 | 2022-07-15 | 北京无线电测量研究所 | Processing method for displaying target containing azimuth information in radar view |
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