EP1831720A1 - Systeme de radar pour la surveillance de cibles dans differentes zones de distance - Google Patents
Systeme de radar pour la surveillance de cibles dans differentes zones de distanceInfo
- Publication number
- EP1831720A1 EP1831720A1 EP05821748A EP05821748A EP1831720A1 EP 1831720 A1 EP1831720 A1 EP 1831720A1 EP 05821748 A EP05821748 A EP 05821748A EP 05821748 A EP05821748 A EP 05821748A EP 1831720 A1 EP1831720 A1 EP 1831720A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radar
- radar system
- signal
- mixer
- scanner
- 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.)
- Withdrawn
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 7
- 238000011156 evaluation Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- 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
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
-
- 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
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/106—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using transmission of pulses having some particular characteristics
-
- 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
- G01S13/08—Systems for measuring distance only
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/18—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein range gates are used
-
- 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
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
Definitions
- Radar system for monitoring targets in different distance ranges
- the invention relates to a radar system for monitoring targets in different distance ranges.
- CW radar-based burglar alarm systems consist essentially of a simple continuous wave (CW) radar.
- the Doppler signal produced by moving objects is evaluated and used as a criterion for an alarm.
- the distance range to be monitored is determined by the range of the CW radar and can not be precisely adjusted or not adjusted, since the range of the system is essentially limited by the transmission power and thus can not be determined with sufficient accuracy.
- targets with different radar backscatter cross sections also have different ranges.
- other radar modulation techniques must be used. It is well known that a distance measurement can be made with a pulse radar.
- a CW carrier signal is amplitude modulated in a pulse shape and transmitted via an antenna. The carrier pulse is reflected at the target object and from the time between emission of the pulse and the arrival of the reflected radiation, the target distance and - using the Doppler effect - the relative speed of the target object can be determined.
- the receiving side, the Radarsendepulsformer supplied high-frequency signal and the Radarempfangssignal is fed to a mixer, the output of the mixer is a signal evaluation on at least one
- the sidelobes / sidebands in the frequency spectrum fall off faster or faster at a considered bandwidth. This is due to the relatively long compared to the prior art radar pulses.
- the hardware cost is low, since only a slight modification of a simple CW radar is necessary. Due to the favorable spectral signal distribution (side lobe limitation), the approval requirements for the released frequency ranges can be adhered to without much effort.
- a simple and low-effort range limitation for a hybrid form of CW and pulse radar can be realized. There is the possibility of a subdivision into different range limits for target object classification / separation. The current measuring range is not recognizable from the outside, which is particularly advantageous for burglar alarm systems. If a target object moves into the monitoring range of the set range limit, then a Doppler signal can be measured on the basis of the radial direction of movement of the target object relative to the radar sensor.
- FIG. 1 is a block diagram of the radar system according to the invention.
- FIG. 2 shows a time diagram of the radar transmission pulses and the reception-side sampling.
- the structure of the radar system according to the invention is shown in FIG.
- the oscillator 1 generates a high-frequency signal, e.g. in the GHz range, which passes through the directional coupler 2 and the RF switch 3 (Radarsendepulsformer) to the transmitting antenna 4 and is emitted from this.
- a portion of the transmission power of the oscillator 1 is coupled to the directional coupler 2 and fed to the receiving mixer 6.
- Target object 10 reflected electromagnetic wave is passed via the receiving antenna 5 to the receiving mixer 6.
- a low-frequency Doppler signal whose frequency is proportional to the relative speed between the radar sensor and the target object, is produced at the output of the receiving mixer 6.
- the mixer output signal is passed through the low frequency switch 7, which acts as a sampler and which is part of the sample and hold stage 8.
- the output signal of the mixer 6 can also be fed directly to the signal evaluation 9 (without switch 7 and sample and hold stage).
- Figure 2 For a radar system with range limitation can be realized in which the sidelobes / sidebands drop rapidly in the frequency spectrum, as shown in Figure 2 switch control is applied.
- the upper and middle parts (zoomed) of Figure 2 show the modulation of the transmission signal.
- the lower part of Figure 2 shows the switch control in the receiving branch, also in zoomed representation.
- Radar pulses are, for example, 10 ⁇ s long with a period of 25 ⁇ s.
- the RF switch 3 is controlled with the control signal TX so that a transmission pulse with a relatively long pulse duration ⁇ j , for example in the ⁇ s range, is emitted with steep edges.
- the range limit R of the system is set (set delay time).
- the set range R of the surveillance area can be determined using the familiar formula from radar technology
- the pulse / sampling duration TR of the low-frequency switch 7 can also correspond to the time ⁇ t.
- the mixer output signal directly (11) can be used for the signal evaluation 9, the range is not additionally limited and thus represents the maximum range according to the aforementioned radar equation.
- the sample plus RX (TR) delayed with respect to the transmit pulse TX monitors the entire measuring range at intervals of each delay setting ( ⁇ t-TR)
- a plurality of samplers connected in parallel may be provided, the delay setting and the sampling times of which are selected so that they can not be operated overlapping in time staggered during the transmission of a radar pulse. This allows you to monitor targets in multiple ranges (zones).
- the system behaves essentially like a CW radar in the set monitoring area and provides the Doppler signal of a moving target.
- a better distinction can be made for multi-objective scenarios and, if appropriate, a target object classification.
- sabotage protection can be implemented for impermissible masking and masking attempts of the system.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004062023.7A DE102004062023B4 (de) | 2004-12-23 | 2004-12-23 | Radarsystem zur Überwachung von Zielen in verschiedenen Entfernungsbereichen |
PCT/EP2005/056864 WO2006069924A1 (fr) | 2004-12-23 | 2005-12-16 | Systeme de radar pour la surveillance de cibles dans differentes zones de distance |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1831720A1 true EP1831720A1 (fr) | 2007-09-12 |
Family
ID=35736335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05821748A Withdrawn EP1831720A1 (fr) | 2004-12-23 | 2005-12-16 | Systeme de radar pour la surveillance de cibles dans differentes zones de distance |
Country Status (12)
Country | Link |
---|---|
US (1) | US20080303709A1 (fr) |
EP (1) | EP1831720A1 (fr) |
JP (1) | JP2008525774A (fr) |
KR (1) | KR20070086533A (fr) |
CN (1) | CN101111780A (fr) |
AU (1) | AU2005321332A1 (fr) |
BR (1) | BRPI0507128A (fr) |
DE (1) | DE102004062023B4 (fr) |
FR (1) | FR2880133B1 (fr) |
GB (1) | GB2421650B (fr) |
IT (1) | ITMI20052402A1 (fr) |
WO (1) | WO2006069924A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2051098A1 (fr) | 2007-10-19 | 2009-04-22 | Ford Global Technologies, LLC | Procédé et système pour la détection de présence |
KR101044000B1 (ko) * | 2008-11-13 | 2011-06-24 | 엘아이지넥스원 주식회사 | 도플러 주파수 측정방법과 장치 및 이를 이용한 레이더 세트의 시험 시스템 |
US7952515B2 (en) * | 2009-02-26 | 2011-05-31 | Mcewan Technologies, Llc | Range gated holographic radar |
KR101378281B1 (ko) * | 2012-08-22 | 2014-03-25 | 주성진 | 전파신호를 이용한 복수표적 검지장치 |
CN103308911B (zh) * | 2013-06-06 | 2015-09-16 | 重庆大学 | 基于距离欺骗技术的微位移测量方法及系统 |
KR101645681B1 (ko) * | 2014-02-25 | 2016-08-04 | 주성진 | 무인보안감시시스템의 복수표적 검지장치 |
US10620298B2 (en) | 2016-08-26 | 2020-04-14 | Infineon Technologies Ag | Receive chain configuration for concurrent multi-mode radar operation |
DE102018200755A1 (de) * | 2018-01-18 | 2019-07-18 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Plausibilisieren einer Querbewegung |
EP3865899A1 (fr) | 2020-02-14 | 2021-08-18 | UTC Fire & Security EMEA BVBA | Radar doppler à impulsions à résolution de plage |
WO2021189438A1 (fr) * | 2020-03-27 | 2021-09-30 | 深圳市速腾聚创科技有限公司 | Procédé et appareil de télémétrie basée sur une onde continue, et radar laser |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8021849D0 (en) * | 1980-07-07 | 2003-06-18 | Emi Ltd | A radar apparatus |
GB2315628B (en) * | 1986-04-17 | 1998-05-13 | Plessey Co Plc | Radar systems |
DE59304473D1 (de) * | 1992-05-18 | 1996-12-19 | Daimler Benz Aerospace Ag | Verfahren zur überwachung eines gebietes |
US5608404A (en) * | 1993-06-23 | 1997-03-04 | The United States Of America As Represented By The United States Department Of Energy | Imaging synthetic aperture radar |
JP3294726B2 (ja) * | 1994-12-20 | 2002-06-24 | 本田技研工業株式会社 | レーダ装置 |
GB9613645D0 (en) * | 1996-06-28 | 1996-08-28 | Cambridge Consultants | Vehicle radar system |
US6121915A (en) * | 1997-12-03 | 2000-09-19 | Raytheon Company | Random noise automotive radar system |
US6069581A (en) | 1998-02-20 | 2000-05-30 | Amerigon | High performance vehicle radar system |
US6239736B1 (en) | 1999-04-21 | 2001-05-29 | Interlogix, Inc. | Range-gated radar motion detector |
DE19963006A1 (de) | 1999-12-24 | 2001-06-28 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Erfassung und Auswertung von Objekten im Umgebungsbereich eines Fahrzeuges |
US6362776B1 (en) * | 2000-02-04 | 2002-03-26 | Honeywell International Inc. | Precision radar altimeter with terrain feature coordinate location capability |
DE10142171A1 (de) * | 2001-08-29 | 2003-03-20 | Bosch Gmbh Robert | Radaranordnung |
JP3610052B2 (ja) * | 2002-04-18 | 2005-01-12 | 三菱電機株式会社 | レーダ装置 |
JP4393084B2 (ja) * | 2003-03-04 | 2010-01-06 | 富士通テン株式会社 | レーダ装置 |
-
2004
- 2004-12-23 DE DE102004062023.7A patent/DE102004062023B4/de not_active Expired - Fee Related
-
2005
- 2005-12-16 BR BRPI0507128-3A patent/BRPI0507128A/pt not_active IP Right Cessation
- 2005-12-16 GB GB0525721A patent/GB2421650B/en not_active Expired - Fee Related
- 2005-12-16 IT IT002402A patent/ITMI20052402A1/it unknown
- 2005-12-16 AU AU2005321332A patent/AU2005321332A1/en not_active Abandoned
- 2005-12-16 WO PCT/EP2005/056864 patent/WO2006069924A1/fr active Application Filing
- 2005-12-16 EP EP05821748A patent/EP1831720A1/fr not_active Withdrawn
- 2005-12-16 CN CNA2005800442542A patent/CN101111780A/zh active Pending
- 2005-12-16 KR KR1020077014168A patent/KR20070086533A/ko not_active Application Discontinuation
- 2005-12-16 US US11/794,282 patent/US20080303709A1/en not_active Abandoned
- 2005-12-16 JP JP2007547469A patent/JP2008525774A/ja not_active Withdrawn
- 2005-12-21 FR FR0513025A patent/FR2880133B1/fr not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2006069924A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102004062023A1 (de) | 2006-07-13 |
GB2421650B (en) | 2008-04-16 |
GB0525721D0 (en) | 2006-01-25 |
BRPI0507128A (pt) | 2007-06-19 |
WO2006069924A1 (fr) | 2006-07-06 |
GB2421650A (en) | 2006-06-28 |
ITMI20052402A1 (it) | 2006-06-24 |
US20080303709A1 (en) | 2008-12-11 |
AU2005321332A1 (en) | 2006-07-06 |
KR20070086533A (ko) | 2007-08-27 |
FR2880133A1 (fr) | 2006-06-30 |
JP2008525774A (ja) | 2008-07-17 |
CN101111780A (zh) | 2008-01-23 |
DE102004062023B4 (de) | 2021-12-23 |
FR2880133B1 (fr) | 2009-04-24 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20070723 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
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DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GR HU IE IS LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
17Q | First examination report despatched |
Effective date: 20081119 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20150328 |