EP1922831A1 - Mobile störsenderantenne - Google Patents
Mobile störsenderantenneInfo
- Publication number
- EP1922831A1 EP1922831A1 EP06761701A EP06761701A EP1922831A1 EP 1922831 A1 EP1922831 A1 EP 1922831A1 EP 06761701 A EP06761701 A EP 06761701A EP 06761701 A EP06761701 A EP 06761701A EP 1922831 A1 EP1922831 A1 EP 1922831A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antennas
- signals
- antenna
- array
- fed
- 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- Withdrawn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
- 230000005540 biological transmission Effects 0.000 title 1
- 230000001427 coherent effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 11
- 230000010287 polarization Effects 0.000 description 5
- 101100350613 Arabidopsis thaliana PLL1 gene Proteins 0.000 description 2
- 101100296075 Arabidopsis thaliana PLL4 gene Proteins 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 101100082028 Arabidopsis thaliana PLL2 gene Proteins 0.000 description 1
- 241001417527 Pempheridae Species 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000000737 periodic effect 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
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/40—Jamming having variable characteristics
- H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/10—Jamming or countermeasure used for a particular application
- H04K2203/22—Jamming or countermeasure used for a particular application for communication related to vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
- H04K2203/32—Jamming or countermeasure characterized by the infrastructure components including a particular configuration of antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
- H04K2203/34—Jamming or countermeasure characterized by the infrastructure components involving multiple cooperating jammers
Definitions
- the invention relates to a mobile, to be mounted on vehicles jammer antenna.
- Jammer systems that are operated by military users or security forces, there is often the requirement of a complete illumination in all directions with the highest possible performance. Level drops or even zeros are highly undesirable here.
- Such antennas are generally designed as individual antennas.
- a Doppler radar with two antennas wherein the antennas are fed by two signals which have different polarizations and temporally rapid mutual changes are subjected, for example, one of the channels, a device for changing the timing of a line pro- grammierbarbarer length have.
- the aim is to carry out a counter-countermeasure, ie the elimination of the generated interference is to be made more difficult.
- the jamming antenna is formed as an antenna array with at least two antennas, wherein the individual antennas of the array are fed by non-coherent signals.
- Non-coherent signals in the sense of this invention are signals which have no fixed phase relation to one another. This can be realized in particular by the following measures:
- the individual antennas of the array emit signals of different frequencies, wherein preferably the frequency differences are kept small.
- the individual antennas of the array emit signals of the same frequency, but different phase, the phase differences are changed continuously in time.
- the individual antennas of the array are designed as round radiators, for example a monopole.
- the diagram of the entire array as a superimposition of the individual antenna signals results in an omnidirectional diagram.
- the signals of the individual antennas ensures that strong diagram break-ins or diagram zeros in the antenna pattern of the antenna array are avoided.
- an illumination of the environment in all directions is ensured at all times.
- the antenna array according to the invention thus acts in total as a single antenna for the coverage of a given, predetermined interference frequency range. If the fault according to the invention over several frequency bands are made, several antenna arrays must be present.
- Fig. 1 is a block diagram of a first embodiment of the invention in which the antennas are fed with signals of different frequencies, using a plurality of signal sources;
- Fig. 2 is a block diagram of a second embodiment of the invention, in which the
- Antennas are fed with signals of different frequency, the different frequencies are obtained by a mixing process;
- Fig. 3 is a block diagram of a third embodiment of the invention, in which the
- Antennas are fed with signals of the same frequency but different phase
- FIG. 4 shows an antenna array according to the invention on a vehicle roof in a plan view and in a side view.
- Fig. 1 shows the block diagram of a first embodiment of the invention.
- Four signal sources Q1-Q4 which are not coherent with each other, supply a signal to four antennas A1-A4, which is previously brought to the required level by an amplifier.
- the sources Q1-Q4 may be, for example, 4 oscillators that are at a low level different frequencies are tuned.
- the frequency difference is preferably chosen smaller than 1%.
- phase relationships of the signals always cycle through all phases periodically, so that there can never be a phase extinction or zero point in the level at one location.
- Fig. 2 shows an alternative embodiment, with which the individual antenna elements are also supplied with slightly different frequencies.
- the frequency difference may preferably be chosen smaller than 1%.
- the signal of the exciter Q (here adjustable, for example, with frequencies between 0.1 and 1 GHz) is divided into four branches by means of a 1: 4 power divider PS1: 4, the signals of which are subsequently fed via preamplifiers and power amplifiers to the individual antennas of the antenna array.
- the signals of three of the four branches are each mixed with slightly different signal frequencies of three PLL synthesizers PLL2 - PLL4 in the mixers M2.
- the sidebands ⁇ + ⁇ (where ⁇ and ⁇ are the two frequencies to be mixed) produced during the mixing process can be neatly separated by means of the downstream low-pass filters TP2, it is advantageous to first convert the signals in the individual branches to an intermediate frequency.
- the signals of the three respective branches are first mixed in the mixers M1 with the frequency of the first PLL synthesizer PLL1 (the division of the signal of the PLL synthesizer is done with the 1: 3 power divider PS1: 3), this
- Frequency should differ significantly from the frequencies of the exciter.
- the lower sideband (only this is used as an antenna signal - of course, the upper sideband can be used) clearly separated from the upper sideband.
- the control transmitter and the PLL synthesizers PLL1 - PLL4 can be connected to a common reference frequency of a reference oscillator RO as shown.
- phase manipulators SH1-SH4 ensure a periodically changing phase, for example, in each branch, wherein the individual phase manipulators are not allowed to work in synchronism with one another.
- phase manipulators switch which - when using 4 antennas - each switch between 4 or more fixed phases (switched lines).
- the phase shifters 1 to 4 can be set as follows: O ° / 9O7180 ° / 270 °.
- the following phases are set: 27 ⁇ 7 ⁇ ° / 9 ⁇ 7i 80 °.
- the phase assignment is as follows: 18 ⁇ 727 ⁇ 7 ⁇ 79O °, etc.
- the time ⁇ twird is chosen so that it is much smaller than the evaluation times of a system to be disrupted or possibly much smaller than data frames or data blocks of a system to be disrupted.
- the phase assignment of the individual channels over time can be controlled instead of a periodic change in each channel, for example by means of a random number generator.
- Fig. 4 shows an exemplary arrangement of 4 antennas A1-A4 of the array of a jammer on a vehicle roof according to the invention.
- the antennas are designed as round radiators, here in the form of a discone antenna.
- the polarization can eg be selected identically for all antennas eg vertically. However, it should be pointed out that the polarization of the antenna signals has no significance for the solution according to the invention. The polarization can therefore be chosen arbitrarily for each individual antenna.
- the antennas of several jamming transmitters can be nested on one another
- Vehicle roof can be arranged to cover a large frequency range.
- Mutual shadowing of the systems which can normally lead back to zero, are also compensated here because of the inventive arrangement of multiple antennas per jammer.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005032597A DE102005032597A1 (de) | 2005-07-13 | 2005-07-13 | Mobiles Störsenderantennensystem |
| PCT/DE2006/001085 WO2007006249A1 (de) | 2005-07-13 | 2006-06-24 | Mobile störsenderantenne |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1922831A1 true EP1922831A1 (de) | 2008-05-21 |
Family
ID=37067512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06761701A Withdrawn EP1922831A1 (de) | 2005-07-13 | 2006-06-24 | Mobile störsenderantenne |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1922831A1 (de) |
| DE (1) | DE102005032597A1 (de) |
| IL (1) | IL188436A (de) |
| WO (1) | WO2007006249A1 (de) |
| ZA (1) | ZA200711248B (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1248757B (de) | 1967-08-31 | |||
| FR2740226B1 (fr) * | 1987-07-24 | 1998-05-07 | Dassault Electronique | Procede de brouillage perfectionne |
| DE9216161U1 (de) * | 1992-11-27 | 1993-03-25 | H.P. Marketing & Consulting Wüst GmbH, 2067 Reinfeld | Störsender |
| KR100357375B1 (ko) * | 1999-07-05 | 2002-10-18 | 재밍일렉트로닉(주) | 전파 교란기 |
| AU2002341369A1 (en) * | 2001-10-16 | 2003-04-28 | Ron Yaacov Davidson | Method and apparatus for signal detection and jamming |
| DE10351154B3 (de) * | 2003-11-03 | 2005-01-05 | Eads Deutschland Gmbh | Verfahren zur Unterdrückung von JEM-Signalen |
-
2005
- 2005-07-13 DE DE102005032597A patent/DE102005032597A1/de not_active Withdrawn
-
2006
- 2006-06-24 WO PCT/DE2006/001085 patent/WO2007006249A1/de not_active Ceased
- 2006-06-24 EP EP06761701A patent/EP1922831A1/de not_active Withdrawn
-
2007
- 2007-12-20 ZA ZA200711248A patent/ZA200711248B/xx unknown
- 2007-12-26 IL IL188436A patent/IL188436A/en unknown
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2007006249A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007006249A1 (de) | 2007-01-18 |
| DE102005032597A1 (de) | 2007-01-25 |
| IL188436A0 (en) | 2008-11-03 |
| IL188436A (en) | 2013-02-28 |
| ZA200711248B (en) | 2008-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20071220 |
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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 |
|
| 17Q | First examination report despatched |
Effective date: 20100629 |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: AIRBUS DEFENCE AND SPACE GMBH |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: AIRBUS DS ELECTRONICS AND BORDER SECURITY GMBH |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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| INTG | Intention to grant announced |
Effective date: 20170207 |
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| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
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| 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: 20180103 |