CN105487051A - Scanning method for radar angle searching - Google Patents

Scanning method for radar angle searching Download PDF

Info

Publication number
CN105487051A
CN105487051A CN201510760392.6A CN201510760392A CN105487051A CN 105487051 A CN105487051 A CN 105487051A CN 201510760392 A CN201510760392 A CN 201510760392A CN 105487051 A CN105487051 A CN 105487051A
Authority
CN
China
Prior art keywords
ripple
wave position
length
ripple position
scan method
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
CN201510760392.6A
Other languages
Chinese (zh)
Other versions
CN105487051B (en
Inventor
张军
王嵛琦
刘广军
侯丹丹
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.)
China Airborne Missile Academy
Original Assignee
China Airborne Missile Academy
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 China Airborne Missile Academy filed Critical China Airborne Missile Academy
Priority to CN201510760392.6A priority Critical patent/CN105487051B/en
Publication of CN105487051A publication Critical patent/CN105487051A/en
Application granted granted Critical
Publication of CN105487051B publication Critical patent/CN105487051B/en
Active 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

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 relates to a scanning method for radar angle searching. The method comprises: determining a next wave position according to a wave position, the length between a to-be-determined wave position and a current wave position being distance step, and the included angle of two connecting lines being rotation step, one connecting line connecting the to-be-determined wave position with the current wave position, and the other connecting line connecting the current wave position with the previous wave position or an initial method. The scanning method ensures spatial domain coverage rate, and wave position overlapping ratio is smaller than an overlapping method.

Description

The scan method of radar angular search
Technical field
The present invention relates to the scan method of a kind of radar angular search.
Background technology
Radar is when the enterprising line search target of angle, usually centered by predetermined spatial direction, beam scanning is carried out within the angular range that sensing center is certain, allow the spatial domain scope that wave cover target may occur, find target by detecting the radar return be radiated in target, so further follow the tracks of, other work such as measurement.
The stop of scanning beam on spatial domain forms ripple position, and on each ripple position, radar carries out corresponding Signal and Information Processing.Because the projection of radar beam on spatial domain is circular, cover by circle the problem that a spatial domain also exists coverage rate and overlapping rate, usually overlapping minimum according to adjacent wave position and that sweep limit is maximum principle designs.All there is the Beam Position Arrangement problem of this angle searching in conventional mechanical scanning radar and phased array electronically scanned radar.
If too compact between ripple position, the ripple bits number of scanning area increases, and will inevitably waste radar system resource, reduces scan efficiency, increases sweep time; If too lax between ripple position, the spatial domain coverage rate of wave beam reduces, and can cause the reduction of target detection probability.
The layout pattern of radar angular search ripple position mainly contains file ripple position, overlapping wave position and three kinds, staggered ripple position.
If Fig. 1 (a) is file ripple position, required ripple bits number is minimum, but coverage rate is only 78.5%, is applicable to using when system resource is in short supply.
If Fig. 1 (b) is overlapping wave position, coverage rate can reach 100%, and do not omit but Duplication high (57%), scan efficiency is low.
If Fig. 1 (c) is staggered ripple position, coverage rate, about 90%, is a kind of common Beam Position Arrangement pattern.
Summary of the invention
The object of this invention is to provide the scan method of a kind of radar angular search, coverage rate and Duplication in order to solve existing scanning are difficult to the problem taken into account.
For achieving the above object, the solution of the present invention comprises: a kind of scan method of radar angular search, the flared screw type in Bo Weicheng center is to cover whole spatial domain.
Its next ripple position is determined: ripple position to be determined and the length between prewave position are distance step-length according to a ripple position; Ripple position to be determined with when the line of prewave position, when the line of ripple position previous with it, prewave position or inceptive direction, two line angles are rotary step.
Described inceptive direction is the arbitrary radial direction through primary wave position.
Require to calculate distance step-length according to wave cover rate.
Distance step-length is less than ripple position diameter.
Described rotary step is Golden Angle.
Scan method of the present invention ensure that the coverage rate in spatial domain, and ripple position Duplication is less than overlap mode.The implementation provided is very efficiently terse.
Accompanying drawing explanation
Fig. 1 (a) is file ripple position schematic diagram;
Fig. 1 (b) is overlapping wave position schematic diagram;
Fig. 1 (c) is staggered ripple position schematic diagram;
Fig. 2 is the ripple position schematic diagram of scan mode of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Basic scheme of the present invention is: the flared screw type in Bo Weicheng center is to cover whole spatial domain.
Implementation method can adopt determines its next ripple position according to a ripple position: ripple position to be determined and the length between prewave position are distance step-length; Ripple position to be determined with when the line of prewave position, when the line of ripple position previous with it, prewave position or initial mode, two line angles are rotary step.
Within the scope of the spatial domain of setting, determine ripple position one by one, final ripple position helically type covers spatial domain.
Specifically, scan method is as follows:
1.1) scan sector scope and shape is determined.Determine the center of scan sector according to the working condition requirement (as instruction) of reality and prepare the spatial domain scope of scanning, spatial domain scope can be circle also can be other shapes (as rectangle, trapezoidal); Calculate the border in spatial domain.
1.2) require to calculate distance step-length according to wave cover rate.3dB beam angle and coverage rate requirement are considered in the calculating of step-length, and the little then coverage rate of step-length is high, ripple figure place is many, and the time in complete field scan spatial domain is just long, and vice versa.
1.3) scanning beam ripple position is calculated according to Golden Angle (golden ratio divides cyclotomy).First in scan sector center layout first ripple position, the layout of follow-up ripple position is diametrically by 1.2) the distance step-length determined moves, circumferentially by Golden Angle (360 ° * 0.618033 ...., be approximately 222.49 °, i.e. rotary step) rotate toward a direction, progressively spread out and cover greatly whole searching sector.
First the primary wave position B scanned is determined 1, with arbitrary radial direction of this primary wave position for inceptive direction, determine Second Wave position, Second Wave position B 2with primary wave position B 1line B 2b 1be rotary step with the angle of inceptive direction, Second Wave position B 2with first wave position B 1between length be distance step-length; 3rd ripple position B 3with line B 2b 1angle be rotary step, the 3rd ripple position B 3with Second Wave position B 2between length be distance step-length; All ripple positions are determined according to above-mentioned rotary step and distance step-length.
B 1, B 2, B 3be respectively the center of circle of corresponding ripple position.
Above-mentioned distance step-length, rotary step all can regulate, rotate, and are not defined as above-mentioned value.
1.4) scan sector border is judged.By 1.3) border of carrying out scan sector, the ripple position of calculating judges, just gives up if exceed airspace boundary, otherwise just as scanning beam ripple position.
1.5) step 1.3 is repeated) to 1.4) until complete the covering of whole scan sector.
Be presented above concrete embodiment, but the present invention is not limited to described embodiment.Basic ideas of the present invention are above-mentioned basic scheme, and for those of ordinary skill in the art, according to instruction of the present invention, designing the model of various distortion, formula, parameter does not need to spend creative work.The change carried out embodiment without departing from the principles and spirit of the present invention, amendment, replacement and modification still fall within the scope of protection of the present invention.

Claims (6)

1. a scan method for radar angular search, it is characterized in that, the flared screw type in Bo Weicheng center is to cover whole spatial domain.
2. the scan method of radar angular search according to claim 1, is characterized in that, determine its next ripple position according to a ripple position: ripple position to be determined and the length between prewave position are distance step-length; Ripple position to be determined with when the line of prewave position, when the line of ripple position previous with it, prewave position or inceptive direction, two line angles are rotary step.
3. the scan method of radar angular search according to claim 2, it is characterized in that, described inceptive direction is the arbitrary radial direction through primary wave position.
4. the scan method of radar angular search according to claim 2, is characterized in that, requires to calculate distance step-length according to wave cover rate.
5. the scan method of radar angular search according to claim 4, is characterized in that, distance step-length is less than ripple position diameter.
6. the scan method of radar angular search according to claim 2, it is characterized in that, described rotary step is Golden Angle.
CN201510760392.6A 2015-11-10 2015-11-10 The scan method of radar angular search Active CN105487051B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510760392.6A CN105487051B (en) 2015-11-10 2015-11-10 The scan method of radar angular search

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510760392.6A CN105487051B (en) 2015-11-10 2015-11-10 The scan method of radar angular search

Publications (2)

Publication Number Publication Date
CN105487051A true CN105487051A (en) 2016-04-13
CN105487051B CN105487051B (en) 2019-01-25

Family

ID=55674160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510760392.6A Active CN105487051B (en) 2015-11-10 2015-11-10 The scan method of radar angular search

Country Status (1)

Country Link
CN (1) CN105487051B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111639427A (en) * 2020-05-27 2020-09-08 中国人民解放军63921部队 Radar double-layer staggered search screen setting method for improving space target discovery probability

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3775383B2 (en) * 2002-12-10 2006-05-17 三菱電機株式会社 Multi-beam radar apparatus and multi-beam radar transmission / reception method
US8134492B1 (en) * 2008-09-11 2012-03-13 Lockheed Martin Corporation Method for scanning a radar search volume within an allowable scan time
CN102998655A (en) * 2012-11-22 2013-03-27 北京理工大学 Optimal wave position selecting method of synthetic aperture radar under scanning working mode
CN104297747A (en) * 2014-09-23 2015-01-21 上海无线电设备研究所 Phased array beam tracking method
CN104316907A (en) * 2014-10-11 2015-01-28 南京长峰航天电子科技有限公司 Airspace staggered wave position arranging method for phased array radar

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3775383B2 (en) * 2002-12-10 2006-05-17 三菱電機株式会社 Multi-beam radar apparatus and multi-beam radar transmission / reception method
US8134492B1 (en) * 2008-09-11 2012-03-13 Lockheed Martin Corporation Method for scanning a radar search volume within an allowable scan time
CN102998655A (en) * 2012-11-22 2013-03-27 北京理工大学 Optimal wave position selecting method of synthetic aperture radar under scanning working mode
CN104297747A (en) * 2014-09-23 2015-01-21 上海无线电设备研究所 Phased array beam tracking method
CN104316907A (en) * 2014-10-11 2015-01-28 南京长峰航天电子科技有限公司 Airspace staggered wave position arranging method for phased array radar

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
JOHN E. FIELDING ET AL.: "Beam Overlap Impact on Phased-Array Target Detection", 《IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS》 *
位寅生等: "单脉冲雷达扫描方式分析与仿真", 《系统工程与电子技术》 *
曹海林等: "深空探测天线快速扫描方法", 《重庆大学学报》 *
李学数: "《数学和数学家的故事》", 31 January 2015 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111639427A (en) * 2020-05-27 2020-09-08 中国人民解放军63921部队 Radar double-layer staggered search screen setting method for improving space target discovery probability
CN111639427B (en) * 2020-05-27 2022-10-11 中国人民解放军63921部队 Radar double-layer staggered search screen setting method for improving space target discovery probability

Also Published As

Publication number Publication date
CN105487051B (en) 2019-01-25

Similar Documents

Publication Publication Date Title
US11181610B2 (en) Positioning light beam emission system, method and indoor positioning system
CN102944866B (en) Interferometer system based secondary surveillance radar response signal direction-finding method
CN106843222A (en) A kind of laser navigation AGV system of local paving reflecting plate
JP6527804B2 (en) Electromagnetic wave measuring apparatus, electromagnetic wave measuring method and program
CN106546973A (en) Phased-array radar and its full spatial domain Target Searching Method
CN105115490A (en) Method for determining indoor active area, and apparatus thereof
CN109001757A (en) A kind of parking space intelligent detection method based on 2D laser radar
CN102540176A (en) Method, program and device for detecting target object, and radar apparatus
CN104316907A (en) Airspace staggered wave position arranging method for phased array radar
CN102075953B (en) Method and device for judging reversed connection of antenna feeders between cells in same base station
CN104849695A (en) Partial discharge equipment positioning method and system
US8339243B2 (en) System and method for positioning active RFID tag
CN107656238A (en) A kind of high-frequency ground wave radar direction finding new method based on double LUT Methods
Clarkson Optimisation of periodic search strategies for electronic support
CN104992519A (en) Perimeter security and protection system
CN105487051A (en) Scanning method for radar angle searching
CN104950298A (en) Target defense-area-crossing identification method based on multiple sets of phased array radar
CN105517148A (en) Positioning method and device
US10637153B2 (en) Reflector antenna and antenna alignment method
CN105955553A (en) Infrared touch screen scanning method and device
CN104020468A (en) Close range target updating cycle calculating method based on secondary radar
KR102197086B1 (en) Apparatus and method for tracking target for antiaircraft
CN104518275A (en) X-waveband wide-spacing novel ring gate array composed of trapezoidal sub-arrays
CN105425232A (en) Monitoring method and electronic equipment
CN106055175A (en) Infrared touch screen scanning method and device, and touch screen system

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
CB03 Change of inventor or designer information

Inventor after: Zhang Jun

Inventor after: Wang Yuqi

Inventor after: Liu Guangjun

Inventor after: Hou Dandan

Inventor before: Zhang Jun

Inventor before: Wang Yuqi

Inventor before: Liu Guangjun

Inventor before: Hou Dandan

CB03 Change of inventor or designer information