CN105116383A - Method and device for generating transmitting beams of FDA radar and FDA radar - Google Patents

Method and device for generating transmitting beams of FDA radar and FDA radar Download PDF

Info

Publication number
CN105116383A
CN105116383A CN201510415995.2A CN201510415995A CN105116383A CN 105116383 A CN105116383 A CN 105116383A CN 201510415995 A CN201510415995 A CN 201510415995A CN 105116383 A CN105116383 A CN 105116383A
Authority
CN
China
Prior art keywords
time period
weight vector
array weight
fda radar
launching beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510415995.2A
Other languages
Chinese (zh)
Other versions
CN105116383B (en
Inventor
邵怀宗
李雄
王文钦
陈慧
熊杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Electronic Science and Technology of China
Original Assignee
University of Electronic Science and Technology of China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Electronic Science and Technology of China filed Critical University of Electronic Science and Technology of China
Priority to CN201510415995.2A priority Critical patent/CN105116383B/en
Publication of CN105116383A publication Critical patent/CN105116383A/en
Application granted granted Critical
Publication of CN105116383B publication Critical patent/CN105116383B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G01S7/28—Details of pulse systems
    • G01S7/282—Transmitters
    • 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
    • G01S7/38—Jamming means, e.g. producing false echoes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The invention discloses a method and device for generating transmitting beams of an FDA radar and the FDA radar. The method comprises a time segment division step that a cycle length of the FDA radar is divided in to a plurality of time segments, an array weight vector generation step that an array weight vector is generated aiming at each time segment in the time segments, and an array weight vector applying step that, in each time segment, the array weight vector corresponding to the corresponding time segment is applied to the FDA radar to generate the corresponding transmitting beam.

Description

Produce the method for the launching beam of FDA radar, device and FDA radar
Technical field
The present invention relates to FDA Radar Technology field, particularly relate to the method for the launching beam producing FDA radar, device and FDA radar.
Background technology
Frequency diversity array (FDA, FrequencyDiverseRadar) radar is applied with different frequency shift (FS)s to different array element at one time, that is: each array element signal frequency of launching is not identical.These signals launched spatially superpose mutually, and FDA radar beam can be made spatially to present on some distance angle position and strengthen, the characteristic that other distance angle positions are weakened, " peak ridge " shape that wave beam is strengthened is S-type.Therefore, FDA radar can realize the specific interference apart from angle position target in space and detection.
But " the peak ridge " of the launching beam of existing FDA radar is time dependent on target location, and this change is periodic.The interference that the launching beam become time this can cause FDA radar can not continue the target on the distance angle position expected or scouting.
Summary of the invention
The object of the present invention is to provide the method for the launching beam producing FDA radar, device and FDA radar, the launching beam produced to solve existing method, device and FDA radar can time dependent problem.
An embodiment provides a kind of method producing the launching beam of FDA radar, comprising: time period partiting step: the one-period duration of FDA radar is divided into multiple time period; Array weight vector generating step: produce an array weight vector for each in multiple time period; And array weight vector applies step: within each time period, the array weight vector corresponding with the time period is put on FDA radar to produce launching beam.
An alternative embodiment of the invention provides a kind of device producing the launching beam of FDA radar, comprising: the time period divides module, for the one-period duration of FDA radar is divided into multiple time period; Array weight vector generation module, for producing an array weight vector for each in multiple time period; And array weight vector applies module, within each time period, the array weight vector corresponding with the time period is put on described FDA radar to produce launching beam.
Another embodiment of the present invention provides a kind of FDA radar, comprises according to device of the present invention.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.Wherein in the accompanying drawings, the multiple identical parts of alphabetic flag instruction after reference number, when making a general reference these parts, by its last alphabetic flag of omission.In the accompanying drawings:
Figure 1 shows that the process flow diagram of an embodiment of the method for the launching beam of generation FDA radar of the present invention;
Figure 2 shows that the schematic diagram of an embodiment of the step 102 in method shown in Fig. 1;
Figure 3 shows that the schematic block diagram of an embodiment of the device of the launching beam of generation FDA radar of the present invention;
Fig. 4 A is the normalization beam figure of launching beam in distance angle dimension of the FDA radar adopting the art of this patent scheme to produce;
Fig. 4 B is the normalization beam figure that the launching beam of the FDA radar adopting the art of this patent scheme to produce is tieed up at Distance Time;
Fig. 4 C is the normalization beam figure of launching beam at angle time dimension of the FDA radar adopting the art of this patent scheme to produce;
Fig. 5 A is the normalization beam figure of launching beam in distance angle dimension of existing FDA radar;
Fig. 5 B is the normalization beam figure that the launching beam of existing FDA radar is tieed up at Distance Time;
Fig. 5 C is the normalization beam figure of launching beam at angle time dimension of existing FDA radar.
In the accompanying drawings, use same or similar label to refer to same or similar element.
Embodiment
Illustrative embodiments of the present invention is described in detail referring now to accompanying drawing.The embodiment that to should be appreciated that shown in accompanying drawing and describe is only exemplary, is intended to explain principle of the present invention and spirit, and not limits the scope of the invention.
With reference to figure 1, Figure 1 shows that the process flow diagram of an embodiment 100 of the method for the launching beam of generation FDA radar of the present invention.Embodiment 100 shown in Fig. 1 can comprise following steps 101 to 103.
Step 101 is time period partiting step: the one-period duration of FDA radar is divided into multiple time period.
One-period duration T=1/ Δ f mentioned here, wherein, Δ f is the frequency shift (FS) between the adjacent array element of FDA radar.
In one embodiment of the invention, the one-period duration of FDA radar can be divided into multiple time period equably.The number of time period is the problem balancing consideration between a complexity in computing and the performance of radar.The number of time period is more, and the timeinvariance of the launching beam of FDA radar is better, but the complexity of computing is higher; The number of time period is fewer, and the timeinvariance of the launching beam of FDA radar is poorer, but the complexity of computing is lower.
Step 102 is array weight vector generating step: produce an array weight vector for each in multiple time period.
With reference to figure 2, Figure 2 shows that the schematic diagram of an embodiment of step 102.In one embodiment of the invention, step 102 may further include following sub-step 201 to 202.
In sub-step 201, within each time period, search for multiple alternative vector, make when each in multiple alternative vector is applied in FDA radar, the main lobe of launching beam is greater than the thresholding preset.
In one embodiment of the invention, when meeting inequality time, can will search for the vector obtained as alternative vector.
Wherein, represent the alternative vector that can be used for first time period; T drepresent the length of time period; A=[a (t 0; R 0, θ 0) ..., a (t i; R 0, θ 0) ... ] represent target location (R 0, θ 0) at time 0≤t < T dinterior signal guide vector matrix, wherein 0≤t i< T d; R{} represents and gets real part, and M is the element number of array in FDA radar array.
Similarly, for other each time period, said method also can be adopted to obtain alternative vector.
In sub-step 202, select from the multiple alternative vector in each time period and preserve make the secondary lobe of launching beam minimum an alternative vector as array weight vector.
For searching for the multiple alternative vector obtained within each time period, the alternative vector of that make the secondary lobe of launching beam minimum can be chosen as the array weight vector being applied to this time period.
In one embodiment of the invention, formula can be passed through array weight vector is found out from multiple alternative vector.Wherein, || || 2represent and ask 2-norm.
Step 103 is array weight vector applying step: within each time period, the described array weight vector corresponding with the time period is put on FDA radar to produce launching beam.
In one embodiment of the invention, in a period of time, with the element value in array weight vector corresponding to this time period, the transmitting of corresponding array element in FDA radar can be weighted, again by Signal averaging later for the weighting of each array element, thus obtain the launching beam of FDA radar.When the next time period starts, array weight vector can be transformed into array weight vector corresponding to this time period, and produce the launching beam of FDA radar by similar method.
In one embodiment of the invention, when next cycle T starts, within the time period corresponding to each array weight vector, array weight vector can be put on FDA radar to produce launching beam.Specifically, the cycle that one newly can be started also is divided into multiple time period, and then within each time period, application precalculates the array weight vector obtained and is weighted transmitting of array element, then superposition obtains the launching beam of FDA radar.
To the method for the launching beam of the generation FDA radar that described herein according to the embodiment of the present invention.
Comparison diagram 4A and Fig. 5 A, Fig. 4 B and Fig. 5 B, Fig. 4 C and Fig. 5 C can find out, the launching beam of the FDA radar that the inventive method produces, its peak ridge changes very little in time, can disturb target constantly or follow the tracks of.Further, the inventive method only needs to calculate once and storage array weight vector, just can cyclically for producing launching beam in each later cycle.
Similar with the method, present invention also offers the corresponding device producing the launching beam of FDA radar.
Figure 3 shows that the schematic block diagram of an embodiment 300 of the device of the launching beam of generation FDA radar of the present invention.
As shown in Figure 3, device 300 can comprise: the time period divides module 301, for the one-period duration of FDA radar is divided into multiple time period; Array weight vector generation module 302, for producing an array weight vector for each in multiple time period; And array weight vector applies module 303, within each time period, the array weight vector corresponding with the time period is put on FDA radar to produce launching beam.
In one embodiment of the invention, array weight vector generation module 302 may further include: alternative vectorial generation module, for within each time period, search for multiple alternative vector, make when each in multiple alternative vector is applied in FDA radar, the main lobe of launching beam is greater than the thresholding preset; And choose module, for select from the multiple alternative vector in each time period and preserve make the secondary lobe of launching beam minimum an alternative vector as array weight vector.
In one embodiment of the invention, time period division module 301 may further include: evenly divide module, for the one-period duration of FDA radar is divided into multiple time period equably.
In one embodiment of the invention, array weight vector applies module 303 and may further include: circulation applies module, for when starting next cycle, within the time period corresponding to each array weight vector, array weight vector is put on FDA radar to produce launching beam.
To the device of the launching beam of the generation FDA radar that described herein according to the embodiment of the present invention.
Comparison diagram 4A and Fig. 5 A, Fig. 4 B and Fig. 5 B, Fig. 4 C and Fig. 5 C can find out, the launching beam of the FDA radar that apparatus of the present invention produce, its peak ridge changes very little in time, can disturb target constantly or follow the tracks of.Further, apparatus of the present invention only need to calculate once and storage array weight vector, just can cyclically for producing launching beam in each later cycle.

Claims (9)

1. produce a method for the launching beam of FDA radar, it is characterized in that, comprising:
Time period partiting step: the one-period duration of described FDA radar is divided into multiple time period;
Array weight vector generating step: produce an array weight vector for each in described multiple time period; And
Array weight vector applies step: in time period described in each, the described array weight vector corresponding with the described time period is put on described FDA radar to produce launching beam.
2. method according to claim 1, is characterized in that, described array weight vector generating step comprises further:
In time period described in each, search for multiple alternative vector, make when each in described multiple alternative vector is applied in described FDA radar, the main lobe of described launching beam is greater than the thresholding preset; And
Select from the described multiple alternative vectors in each time period and preserve make the secondary lobe of launching beam minimum an alternative vector as array weight vector.
3. method according to claim 1, is characterized in that, described time period partiting step comprises further:
The one-period duration of described FDA radar is divided into multiple time period equably.
4. method according to claim 1, is characterized in that, described array weight vector applies step and comprises further:
Circulation applies step: when starting the next described cycle, in the time period described in each corresponding to array weight vector, described array weight vector is put on described FDA radar to produce launching beam.
5. produce a device for the launching beam of FDA radar, it is characterized in that, comprising:
Time period divides module, for the one-period duration of described FDA radar is divided into multiple time period;
Array weight vector generation module, for producing an array weight vector for each in described multiple time period; And
Array weight vector applies module, in time period described in each, the described array weight vector corresponding with the described time period is put on described FDA radar to produce launching beam.
6. device according to claim 5, is characterized in that, described array weight vector generation module comprises further:
Alternative vectorial generation module, in time period described in each, searches for multiple alternative vector, and make when each in described multiple alternative vector is applied in described FDA radar, the main lobe of described launching beam is greater than the thresholding preset; And
Choose module, for select from the described multiple alternative vectors in each time period and preserve make the secondary lobe of launching beam minimum an alternative vector as array weight vector.
7. device according to claim 5, is characterized in that, the described time period divides module and comprises further:
Even division module, for being divided into multiple time period equably by the one-period duration of described FDA radar.
8. device according to claim 5, is characterized in that, described array weight vector applies module and comprises further:
Circulation applies module, for when starting the next described cycle, in the time period described in each corresponding to array weight vector, described array weight vector is put on described FDA radar to produce launching beam.
9. a FDA radar, is characterized in that, comprising: the device according to any one in claim 5-9.
CN201510415995.2A 2015-07-15 2015-07-15 Produce method, device and the FDA radars of the launching beam of FDA radars Expired - Fee Related CN105116383B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510415995.2A CN105116383B (en) 2015-07-15 2015-07-15 Produce method, device and the FDA radars of the launching beam of FDA radars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510415995.2A CN105116383B (en) 2015-07-15 2015-07-15 Produce method, device and the FDA radars of the launching beam of FDA radars

Publications (2)

Publication Number Publication Date
CN105116383A true CN105116383A (en) 2015-12-02
CN105116383B CN105116383B (en) 2017-07-18

Family

ID=54664416

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510415995.2A Expired - Fee Related CN105116383B (en) 2015-07-15 2015-07-15 Produce method, device and the FDA radars of the launching beam of FDA radars

Country Status (1)

Country Link
CN (1) CN105116383B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107037410A (en) * 2017-04-17 2017-08-11 电子科技大学 A kind of method disturbed radar, device and frequency control battle array jammer
CN108363058A (en) * 2018-03-06 2018-08-03 电子科技大学 Frequency controls the signal parameter design method of battle array imaging radar
CN108761414A (en) * 2018-05-25 2018-11-06 电子科技大学 A kind of S-shaped interfering beam test method for controlling battle array based on frequency

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060152403A1 (en) * 2005-01-12 2006-07-13 Wicks Michael C Method and apparatus for a frequency diverse array
US20090278732A1 (en) * 2006-04-28 2009-11-12 Paul Antonik Method and apparatus for simultaneous synthetic aperture radar and moving target indication
CN103018737A (en) * 2012-11-20 2013-04-03 电子科技大学 Method for utilizing frequency distribution array (FDA) radar to estimate object distance and azimuthal angle and FDA radar
CN104297734A (en) * 2014-10-20 2015-01-21 西安电子科技大学 Deception interference rejection method for MIMO radar based on frequency diversity array

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060152403A1 (en) * 2005-01-12 2006-07-13 Wicks Michael C Method and apparatus for a frequency diverse array
US20090278732A1 (en) * 2006-04-28 2009-11-12 Paul Antonik Method and apparatus for simultaneous synthetic aperture radar and moving target indication
CN103018737A (en) * 2012-11-20 2013-04-03 电子科技大学 Method for utilizing frequency distribution array (FDA) radar to estimate object distance and azimuthal angle and FDA radar
CN104297734A (en) * 2014-10-20 2015-01-21 西安电子科技大学 Deception interference rejection method for MIMO radar based on frequency diversity array

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈慧 等: "基于稀疏表示的频控阵MIMO雷达多目标定位", 《雷达科学与技术》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107037410A (en) * 2017-04-17 2017-08-11 电子科技大学 A kind of method disturbed radar, device and frequency control battle array jammer
CN107037410B (en) * 2017-04-17 2020-05-19 电子科技大学 Method and device for interfering radar and frequency control array jammer
CN108363058A (en) * 2018-03-06 2018-08-03 电子科技大学 Frequency controls the signal parameter design method of battle array imaging radar
CN108761414A (en) * 2018-05-25 2018-11-06 电子科技大学 A kind of S-shaped interfering beam test method for controlling battle array based on frequency
CN108761414B (en) * 2018-05-25 2022-05-20 电子科技大学 S-shaped interference wave beam testing method based on frequency control array

Also Published As

Publication number Publication date
CN105116383B (en) 2017-07-18

Similar Documents

Publication Publication Date Title
Naghsh et al. A Doppler robust design of transmit sequence and receive filter in the presence of signal-dependent interference
Gante et al. Deep learning architectures for accurate millimeter wave positioning in 5G
CN105116383A (en) Method and device for generating transmitting beams of FDA radar and FDA radar
CN104898113A (en) Multiple-input-multiple-output radar waveform design method
KR102262197B1 (en) Apparatus and method for estimating the shape of a target using fmcw radar signals
CN105044689A (en) Frequency-controlled array-based RF stealth method and device
CN111521998A (en) Deep learning for antialiasing and configuring radar systems
CN105354351A (en) Improved simulated annealing algorithm based limit sparse array optimization method
CN109946643B (en) Non-circular signal direction-of-arrival angle estimation method based on MUSIC solution
CN110082731B (en) Continuous-phase MIMO radar optimal waveform design method
KR20160012284A (en) Method and Apparatus for suppressing jammer signals and estimating Angle Of Arrival of original signal using orthogonal of transmitting signal waveform
JP6355546B2 (en) Target detection device
CN108120953A (en) A kind of radio location method based on Mutual coupling
Luo et al. Synthesis of thinned concentric circular antenna arrays using modified TLBO algorithm
CN109358313B (en) Broadband direction finding method based on quantum charged system search evolution mechanism
CN105572644A (en) Polarization sensitive FDA radar, and wave beam forming and apparatus method of the same
CN103135092A (en) Micro aperture acoustic array moving objective orientation method
CN109116325A (en) Target identification method and system based on agile coherent radar
CN115097429A (en) Passive sonar target detection and track backtracking method based on CLEAN algorithm
CN110082730B (en) Discrete-phase MIMO radar waveform design method
CN113642181A (en) MIMO radar waveform optimization method for rapid manifold modeling
CN104267393B (en) A kind of MIMO radar true and false bullet Sequential Detection
CN113325382A (en) DDMA MIMO radar speed ambiguity resolution method based on global optimization phase modulation
KR20210114199A (en) Method and apparatus for radar target identification based on deep learning
JP6583097B2 (en) Parameter adjustment device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170718

Termination date: 20180715