CN104950298A - Target defense-area-crossing identification method based on multiple sets of phased array radar - Google Patents

Target defense-area-crossing identification method based on multiple sets of phased array radar Download PDF

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Publication number
CN104950298A
CN104950298A CN201510378584.0A CN201510378584A CN104950298A CN 104950298 A CN104950298 A CN 104950298A CN 201510378584 A CN201510378584 A CN 201510378584A CN 104950298 A CN104950298 A CN 104950298A
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Prior art keywords
target
radar
map
coordinate
targets
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CN201510378584.0A
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Inventor
于少飞
高波
杨震威
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Shandong Conwell Communication Technology Co Ltd
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Shandong Conwell Communication Technology Co Ltd
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Priority to CN201510378584.0A priority Critical patent/CN104950298A/en
Publication of CN104950298A publication Critical patent/CN104950298A/en
Pending legal-status Critical Current

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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
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • 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
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • 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
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • 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
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G01S7/415—Identification of targets based on measurements of movement associated with the target

Abstract

The invention discloses a target defense-area-crossing identification method based on multiple sets of phased array radar. The method comprises steps as follows: installing at least one set of radar in a to-be-monitored area and ensuring that all radar defense areas cover the monitored area completely after being combined; determining absolute coordinate information of each set of radar on a map formed by an upper computer; receiving target information discovered and uploaded by each set of radar through a TCP/IP (transmission control protocol/internet protocol); performing coordinate transformation on the target information and saving newly discovered targets in set New Targets; judging whether the newly discovered targets and original targets in the set Targets are the same or not; displaying all the target information on the map of the upper computer. The method has the benefits as follows: after the multiple sets of radar monitor the targets and upload the target information, the upper computer calculates and analyzes absolute coordinates and relative coordinates of the target information, the same targets are identified, target motion tracks are obtained, and defense-area-crossing identification of the targets is realized.

Description

A kind of target based on multiple stage phased-array radar is across defence area recognition methods
Technical field
The present invention relates to a kind of based on multiple stage phased-array radar to finding that target is across the recognition methods in defence area.
Background technology
Along with the development of science and technology and the universal of infotech, the security protection measure of the safety precaution key unit such as prison, detention house is also in constantly upgrading and optimization.Electronic perimeter system before as: infrared emission, vibrations cable, to reveal the means such as cable, microwave correlation large by surrounding environment, weather and electromagnetic interference influence, easily utilized by convict, circumference supervisory system based on phased-array radar avoids the interference of above-mentioned factor, has reliability, accuracy, practicality concurrently simultaneously.
But, need multiple stage phased-array radar to form monitor network to the monitoring of circumference and just can avoid leak, multiple stage radar causes monitor staff to know, and which platform radar has found target, and do not know the motion track of target, when target moves to the defence area of next radar from the defence area of a radar simultaneously, monitor staff does not know the target of new generation or the target found before yet.Very large inconvenience and hidden danger is there is for safety precaution key sector.
Summary of the invention
Object of the present invention is exactly to solve the problem, propose a kind of target based on multiple stage phased-array radar across defence area recognition methods, the method to find and after the target information uploaded receiving multiple stage radar, by the process to target information, identifying which target is same target, obtains the track of target travel, achieve identifying across defence area of target, make monitor staff obtain correct monitor message, thus make correct processing mode, guarantee security protection safety.
To achieve these goals, the present invention adopts following technical scheme:
Based on the target of multiple stage phased-array radar across a defence area recognition methods, comprise the following steps:
Step 1: install at least one radar at needs guarded region, guarantees the rear complete covering guarded region of defence area combination of all radars; Determine the absolute coordinate information on the map that each radar is formed at host computer;
Step 2: found and the target information uploaded by ICP/IP protocol receiving radar;
Step 3: coordinate conversion is carried out to target information, and new discovery target is saved in collection class NewTargets;
Step 4: judge whether the former target in collection class NewTargets in new discovery target and collection class Targets is same target; If so, the coordinate information of collection class Targets Central Plains target is upgraded; Otherwise, new discovery target is added in collection class Targets;
Step 5: all target informations are shown on the map of host computer.
In described step 1, realizing after guarded region radar covers completely, host computer forms map in proportion according to the deployment scenarios of guarded region radar, obtains its corresponding coordinate and angle on map according to the installation site of each radar.
In described step 2, target information at least comprises: radar numbering and target belonging to target designation, target X-coordinate, target Y-coordinate, target call time.
In described step 3, the coordinate of target on map is called absolute coordinates, the coordinate of relative for target radar is called relative coordinate, radar installation site is the initial point of relative coordinate system; The relative coordinate of target information is converted into absolute coordinates, and concrete grammar is:
1) coordinate (X on the map that radar is formed at host computer is supposed 0, Y 0), radar deflection angle is α, obtains matrix
c o s α - s i n α X 0 s i n α cos α Y 0 0 0 1 ;
2) relative coordinate values (Xt, Yt) of target is changed into distance on map (Xt ', Yt ') in proportion by actual rice number: map range=actual range * engineer's scale; I.e. Xt '=Xt* engineer's scale, Yt '=Yt* engineer's scale;
3) by matrix operation, the relative coordinate values of target is converted into absolute coordinates (X, Y).
Described step 3) in matrix operation be specially:
X Y 1 = cos a - sin a X o sin a cos a Y o 0 0 1 * Xt ′ Yt ′ 1 ;
Obtain i.e. X=cosa*Xt '-sina*Yt '+X 0, Y=sina*Xt '+cosa*Yt '+Y 0;
Wherein, the absolute coordinates that (X, Y) is target, (X 0, Y 0) be the coordinate of radar installation site on map, (Xt ', Yt ') is converted into the distance on map for target relative coordinate values, α is the deflection angle of radar detection direction on map.
In described step 4, judge that whether former target in collection class NewTargets in new discovery target and collection class Targets is the concrete grammar of same target and is:
Target absolute coordinates in set of computations class NewTargets and the actual range between the target absolute coordinates in collection class Targets, if actual range is less than setting value N, be then judged as same target.
In described step 5, all target informations are shown on the map of host computer, form the movement locus of target, identifying across defence area of realize target.
The invention has the beneficial effects as follows:
By the enforcement of the inventive method, multiple stage radar monitoring target can be realized and after the target information uploaded, host computer passes through the relative coordinate of target information and the computational analysis of absolute coordinates, identify and process, identifying which target is same target, obtains the track of target travel, identifying across defence area of realize target, thus obtain correct monitor message, make correct counter-measure, guarantee security protection safety.
Accompanying drawing explanation
Fig. 1 be the present invention is based on multiple stage phased-array radar target across defence area recognition methods process flow diagram.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:
As shown in Figure 1, a kind of target based on multiple stage phased-array radar, across defence area recognition methods, comprises the following steps:
Step 1: install at least one radar at needs guarded region, guarantees the rear complete covering guarded region of defence area combination of all radars; Determine the absolute coordinate information on the map that each radar is formed at host computer;
Step 2: found and the target information uploaded by ICP/IP protocol receiving radar;
Step 3: coordinate conversion is carried out to target information, and new discovery target is saved in collection class NewTargets;
Step 4: judge whether the former target in collection class NewTargets in new discovery target and collection class Targets is same target; If so, the coordinate information of collection class Targets Central Plains target is upgraded; Otherwise, new discovery target is added in collection class Targets;
Step 5: all target informations are shown on the map of host computer.
At needs guarded region, multiple stage radar is installed, guarantees the rear complete covering guarded region of defence area combination of all radars.Guarded region forms map in proportion, and the installation site according to each radar obtains corresponding coordinate and angle on map.Coordinate on map is called " absolute coordinates ".
Receive radar by ICP/IP protocol to find and the target information uploaded.Target information comprises: target designation, X-coordinate, Y-coordinate, affiliated radar numbering, on call time.
The coordinate of the relative radar of target is called " relative coordinate ", and radar installation site is the initial point of " relative coordinate system ".
According to the relative coordinate of target, the coordinate of radar on map, the engineer's scale of map and the setting angle of radar, " relative coordinate " of target is changed into " absolute coordinates ".Concrete grammar is:
1) coordinate (X on the map that radar is formed at host computer is supposed 0, Y 0), radar deflection angle is α, obtains matrix
c o s α - s i n α X 0 s i n α cos α Y 0 0 0 1 ;
2) relative coordinate values (Xt, Yt) of target is changed into distance on map (Xt ', Yt ') in proportion by actual rice number: map range=actual range * engineer's scale; I.e. Xt '=Xt* engineer's scale, Yt '=Yt* engineer's scale;
3) by matrix operation, the relative coordinate values of target is converted into absolute coordinates (X, Y).
Matrix operation is specially:
X Y 1 = cos a - sin a X o sin a cos a Y o 0 0 1 * Xt ′ Yt ′ 1 ;
Obtain i.e. X=cosa*Xt '-sina*Yt '+X 0, Y=sina*Xt '+cosa*Yt '+Y 0;
Wherein, the absolute coordinates that (X, Y) is target, (X 0, Y 0) be the coordinate of radar installation site on map, (Xt ', Yt ') is converted into the distance on map for target relative coordinate values, α is the deflection angle of radar detection direction on map.
By all new discovery target collection class " NewTargets " management changing into " absolute coordinates ", preserve.
By " absolute coordinates " of the target in " NewTargets ", calculate mutually with " absolute coordinates " of target in collection class " Targets ", if distance is less than setting value N rice (actual range), judges that target is same target, and " absolute coordinates " of target is upgraded.Otherwise new target is added in " Targets " collection class.Wherein, the span of N is: 0.1 ~ 2.0 (depending on the precision of radar detection), choose N=0.5 in the present embodiment.
All target informations in " Targets " collection class are shown on map.Thus the movement locus of target can be seen intuitively, identifying across defence area of realize target, make that monitor staff's obtain correct monitor message, ensure that the safety of security protection.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.

Claims (7)

1. based on the target of multiple stage phased-array radar across a defence area recognition methods, it is characterized in that, comprise the following steps:
Step 1: install at least one radar at needs guarded region, guarantees the rear complete covering guarded region of defence area combination of all radars; Determine the absolute coordinate information on the map that each radar is formed at host computer;
Step 2: found and the target information uploaded by ICP/IP protocol receiving radar;
Step 3: coordinate conversion is carried out to target information, and new discovery target is saved in collection class NewTargets;
Step 4: judge whether the former target in collection class NewTargets in new discovery target and collection class Targets is same target; If so, the coordinate information of collection class Targets Central Plains target is upgraded; Otherwise, new discovery target is added in collection class Targets;
Step 5: all target informations are shown on the map of host computer.
2. as claimed in claim 1 a kind of target based on multiple stage phased-array radar across defence area recognition methods, it is characterized in that, in described step 1, realizing after guarded region radar covers completely, host computer forms map in proportion according to the deployment scenarios of guarded region radar, obtains its corresponding coordinate and angle on map according to the installation site of each radar.
3. as claimed in claim 1 a kind of target based on multiple stage phased-array radar across defence area recognition methods, it is characterized in that, in described step 2, target information at least comprises: radar numbering and target belonging to target designation, target X-coordinate, target Y-coordinate, target call time.
4. as claimed in claim 1 a kind of target based on multiple stage phased-array radar across defence area recognition methods, it is characterized in that, in described step 3, the coordinate of target on map is called absolute coordinates, the coordinate of relative for target radar is called relative coordinate, and radar installation site is the initial point of relative coordinate system; The relative coordinate of target information is converted into absolute coordinates, and concrete grammar is:
1) coordinate (X on the map that radar is formed at host computer is supposed 0, Y 0), radar deflection angle is α, obtains matrix
c o s α - s i n α X 0 s i n α cos α Y 0 0 0 1 ;
2) relative coordinate values (Xt, Yt) of target is changed into distance on map (Xt ', Yt ') in proportion by actual rice number: map range=actual range * engineer's scale; I.e. Xt '=Xt* engineer's scale, Yt '=Yt* engineer's scale;
3) by matrix operation, the relative coordinate values of target is converted into absolute coordinates (X, Y).
5. a kind of target based on multiple stage phased-array radar, across defence area recognition methods, is characterized in that, described step 3 as claimed in claim 4) in matrix operation be specially:
X Y 1 = cos a - sin a X o sin a cos a Y o 0 0 1 * X t ′ Y t ′ 1 ;
Obtain i.e. X=cosa*Xt '-sina*Yt '+X 0, Y=sina*Xt '+cosa*Yt '+Y 0;
Wherein, the absolute coordinates that (X, Y) is target, (X 0, Y 0) coordinate on the map that formed at host computer for radar installation site, (Xt ', Yt ') is converted into the distance on map for target relative coordinate values, α is the deflection angle of radar detection direction on map.
6. as claimed in claim 1 a kind of target based on multiple stage phased-array radar across defence area recognition methods, it is characterized in that, in described step 4, judge that whether former target in collection class NewTargets in new discovery target and collection class Targets is the concrete grammar of same target and is:
Target absolute coordinates in set of computations class NewTargets and the actual range between the target absolute coordinates in collection class Targets, if actual range is less than setting value N, be then judged as same target.
7. as claimed in claim 1 a kind of target based on multiple stage phased-array radar across defence area recognition methods, it is characterized in that, in described step 5, all target informations are shown on the map of host computer, form the movement locus of target, identifying across defence area of realize target.
CN201510378584.0A 2015-07-01 2015-07-01 Target defense-area-crossing identification method based on multiple sets of phased array radar Pending CN104950298A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106249210A (en) * 2016-07-29 2016-12-21 山东康威通信技术股份有限公司 A kind of many phased array radar target merges and pseudo-target identification System and method for
CN108174163A (en) * 2018-01-12 2018-06-15 上海涵适电子科技有限公司 A kind of 360 degree of panorama wide area safety-protection systems based on infrared thermal imaging photoelectric technology
CN108872963A (en) * 2018-07-12 2018-11-23 北京大汉正源科技有限公司 laser radar control method
CN109212513A (en) * 2018-09-29 2019-01-15 河北德冠隆电子科技有限公司 Multiple target between radar data transmitting, data fusion and localization method is continuously tracked
CN109581343A (en) * 2018-11-30 2019-04-05 西安思丹德信息技术有限公司 Multi-radar network device and multi-direction object detection method
CN110501684A (en) * 2019-08-23 2019-11-26 北京航天朗智科技有限公司 Radar data processing unit and radar data processing method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101082668A (en) * 2007-06-25 2007-12-05 北京航空航天大学 Error calibrating method for high dynamic, multivariate and asynchronous nonitoring system
CN101231340A (en) * 2007-12-29 2008-07-30 四川川大智胜软件股份有限公司 Error registration method for processing track amalgamation of multiple radar system
CN101793961A (en) * 2008-12-16 2010-08-04 塔莱斯公司 Multiple-sensor tracking processing method with reduced latency time
CN103116159A (en) * 2013-01-18 2013-05-22 湖南华诺星空电子技术有限公司 Multi-mode self-positioning networking radar life detection method and device
CN103792522A (en) * 2014-01-15 2014-05-14 中国人民解放军海军航空工程学院 Multi-radar marine target robust association algorithm based on credible association pair

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101082668A (en) * 2007-06-25 2007-12-05 北京航空航天大学 Error calibrating method for high dynamic, multivariate and asynchronous nonitoring system
CN101231340A (en) * 2007-12-29 2008-07-30 四川川大智胜软件股份有限公司 Error registration method for processing track amalgamation of multiple radar system
CN101793961A (en) * 2008-12-16 2010-08-04 塔莱斯公司 Multiple-sensor tracking processing method with reduced latency time
CN103116159A (en) * 2013-01-18 2013-05-22 湖南华诺星空电子技术有限公司 Multi-mode self-positioning networking radar life detection method and device
CN103792522A (en) * 2014-01-15 2014-05-14 中国人民解放军海军航空工程学院 Multi-radar marine target robust association algorithm based on credible association pair

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
刘进平: ""雷达情报综合中的航迹处理方法"", 《雷达科学与技术》 *
张凤举: "《控制测量学》", 30 November 2014 *
张华生: ""一种体系作战雷达网络的数据融合"", 《现代雷达》 *
陈列: ""雷达情报数据融合系统的误差校正和航迹关联技术研究"", 《中国优秀硕士学位论文全文数据库 信息科技辑》 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106249210A (en) * 2016-07-29 2016-12-21 山东康威通信技术股份有限公司 A kind of many phased array radar target merges and pseudo-target identification System and method for
CN106249210B (en) * 2016-07-29 2018-12-18 山东康威通信技术股份有限公司 A kind of more phased array radar target fusions and pseudo- target identification system and method
CN108174163A (en) * 2018-01-12 2018-06-15 上海涵适电子科技有限公司 A kind of 360 degree of panorama wide area safety-protection systems based on infrared thermal imaging photoelectric technology
CN108872963A (en) * 2018-07-12 2018-11-23 北京大汉正源科技有限公司 laser radar control method
CN108872963B (en) * 2018-07-12 2022-05-13 北京大汉正源科技有限公司 Laser radar control method
CN109212513A (en) * 2018-09-29 2019-01-15 河北德冠隆电子科技有限公司 Multiple target between radar data transmitting, data fusion and localization method is continuously tracked
CN109212513B (en) * 2018-09-29 2021-11-12 河北德冠隆电子科技有限公司 Data transfer, data fusion and continuous tracking and positioning method for multiple targets between radars
CN109581343A (en) * 2018-11-30 2019-04-05 西安思丹德信息技术有限公司 Multi-radar network device and multi-direction object detection method
CN110501684A (en) * 2019-08-23 2019-11-26 北京航天朗智科技有限公司 Radar data processing unit and radar data processing method

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Application publication date: 20150930