EP2472215B1 - Verfahren und Vorrichtung zur Neutralisierung eines Ziels - Google Patents

Verfahren und Vorrichtung zur Neutralisierung eines Ziels Download PDF

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Publication number
EP2472215B1
EP2472215B1 EP11306780.5A EP11306780A EP2472215B1 EP 2472215 B1 EP2472215 B1 EP 2472215B1 EP 11306780 A EP11306780 A EP 11306780A EP 2472215 B1 EP2472215 B1 EP 2472215B1
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European Patent Office
Prior art keywords
target
antenna
array
frequency
radiofrequency
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English (en)
French (fr)
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EP2472215A1 (de
Inventor
Jean-Pierre Brasile
Dominique Fasse
Patrick Sirot
Dominique Jousse
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Thales SA
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Thales SA
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H13/00—Means of attack or defence not otherwise provided for
    • F41H13/0043—Directed energy weapons, i.e. devices that direct a beam of high energy content toward a target for incapacitating or destroying the target
    • F41H13/0075—Directed energy weapons, i.e. devices that direct a beam of high energy content toward a target for incapacitating or destroying the target the high-energy beam being a radiofrequency beam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H13/00—Means of attack or defence not otherwise provided for
    • F41H13/0043—Directed energy weapons, i.e. devices that direct a beam of high energy content toward a target for incapacitating or destroying the target
    • 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
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/45—Jamming having variable characteristics characterized by including monitoring of the target or target signal, e.g. in reactive jammers or follower jammers for example by means of an alternation of jamming phases and monitoring phases, called "look-through mode"
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/60—Jamming involving special techniques
    • H04K3/62—Jamming involving special techniques by exposing communication, processing or storing systems to electromagnetic wave radiation, e.g. causing disturbance, disruption or damage of electronic circuits, or causing external injection of faults in the information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/60—Jamming involving special techniques
    • H04K3/65—Jamming involving special techniques using deceptive jamming or spoofing, e.g. transmission of false signals for premature triggering of RCIED, for forced connection or disconnection to/from a network or for generation of dummy target signal
    • 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
    • H04K2203/24—Jamming or countermeasure used for a particular application for communication related to weapons
    • 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 the field of microwave weapons and jammers applied to the disruption or destruction of remote electronic equipment, particularly weapons systems or explosive devices.
  • a method for neutralizing a target comprising a step of transmitting a broadband signal on the target by an emitter and a step of receiving the signals re-emitted by the target by several receivers.
  • the received signals are then inverted temporally and returned by several high power transmitters towards the target.
  • This method makes it possible to emit a wave whose waveform obtained by time reversal is optimized for a given position of the target.
  • time reversal methods are complex and require significant calculation means.
  • the object of the invention is to provide a method for neutralizing a remote target that is both efficient and without complex signal processing that is expensive in terms of calculation time.
  • the neutralization device has the following characteristic: the antenna array comprises the probe antenna, the probe antenna being adapted to receive a radiofrequency wave broadcast by the target.
  • the invention relates to a method of neutralizing a remote target and its associated device. Such a method is intended to neutralize systems comprising electronic components.
  • an electromagnetic wave sent to the target generates a particular coupling with the target, because of the configuration of the latter and in particular the presence of electric cables, the arrangement of openings conducive to the propagation of certain wavelengths, the nature of the materials and components integrated into the target.
  • the optimal coupling frequency is that for which the wave penetrates best into the target, that which allows a strong coupling with cables and / or with sensitive electronic components.
  • the method according to the invention aims to identify the most efficient frequencies (resonance, harmonic detection) and emit them in phase coherence.
  • the figure 1 illustrates an embodiment according to the invention of a device 10 for neutralizing a target 12 comprising at least one active electronic component 13 and an opening 14.
  • the device 10 comprises several antennas designated by the general reference E i , with i an integer between 1 and N.
  • This plurality of antennas forms a lacunary network of antennas, also called gap antenna.
  • One of the antennas is particularly suitable for transmitting towards the target a radio frequency test signal having a frequency spectrum comprising at least two distinct frequencies and comprising at least one radiofrequency wave.
  • this antenna is called probe antenna 16.
  • the probe antenna transmits a test signal comprising a single radiofrequency wave having a spectrum comprising at least two distinct frequencies.
  • the probe antenna emits a test signal comprising a plurality of successive radiofrequency waves, each of these radiofrequency waves being either mono-frequency or having a spectrum comprising at least two distinct frequencies.
  • the antennas E.sub.i of the lacunary network each comprise a receiver R.sub.i capable of receiving a radiofrequency wave diffused by the target and a transmitter P.sub.I capable of transmitting a radiofrequency wave towards the target.
  • each antenna E i of the lacunary network comprises processing means T i radiofrequency waves broadcast by the target, connected to the transmitter P i and the receiver R i of the antenna.
  • These processing means T i comprise means for measuring the amplitude of the waves diffused by the target as a function of the emission frequencies of the wave radio frequency transmitted by the probe antenna 16, or any other value representative of the amplitude such as instantaneous power or intensity.
  • the processing means T i comprise means for measuring the travel time t i radiofrequency waves diffused between the target and the antenna E i of the network as a function of the radiofrequency wave emission frequencies, or any other representative value of the travel time t i such as the phase of the radiofrequency waves broadcast by the target and received by each antenna E i of the network.
  • the device 10 comprises a unit 50 for selecting at least one preferred transmission frequency as a function of the amplitude and the travel time t i of the scattered waves received by each of the antennas E i .
  • This unit 50 comprises means for assigning to each transmitter P i of each antenna E i a set of preferred transmission frequencies possibly specific to each antenna E i .
  • the unit 50 is also able to provide the probe antenna 16 with a set of test frequencies suitable for being implemented in a radio frequency test signal initially sent to the target 12.
  • the probe antenna is independent of the gap network.
  • the device 10 is adapted to implement the neutralization method 100 according to the invention which will now be described with regard to the figure 2 .
  • the probe antenna 16 transmits a radio frequency test signal towards the target.
  • This radiofrequency signal has a frequency spectrum comprising at least two different frequencies in order to reach an optimal coupling with the target whose effective cross section varies greatly with the frequency.
  • this signal is a signal having a broadband frequency spectrum of a width of at least 100 MHz.
  • this signal is a radio frequency wave train, each wave having a narrow frequency spectrum, of the order of 10 to 100 kHz.
  • the frequency spectrum of the transmitted signal is in the range of 1 to 5 GHz.
  • the radio frequency test signal sent on the target 12 generates a particular coupling with the target, because of the configuration of the latter, for example the arrangement of openings 14 conducive to the propagation of certain wavelengths, thus improving the penetration of the signal into the target.
  • Radiofrequency waves are then broadcast by the target 12 in several directions. For example, they are directly reflected on the target or after penetration through the openings 14 of the target. These openings, when excited by a wave at the resonant frequency of the target, behave as antennas radiating a radiofrequency signal amplified by the resonance in all directions, in particular towards the inside of the target and towards the antennas E i of the network.
  • the amplitude of the radiofrequency waves scattered is a function of the radiofrequency signal received by the target and resonances thereof, that is to say the privileged frequencies generating optimal coupling.
  • the processing means T i analyze the frequency spectrum of the signals received and identify the frequencies having the largest amplitude corresponding to the frequencies for which a particular coupling has taken place between the target and the radiofrequency wave received by the target.
  • Each receiver R i receives a signal broadcast by the target having a frequency spectrum comprising the frequencies of the radio frequency test wave and, where appropriate their higher order harmonics, that is to say the multiples of these frequencies.
  • the test radiofrequency wave is detected by a non-linear element of the target, in particular by the electronic component 13.
  • the radiofrequency wave emitted towards the target has a frequency spectrum comprising four frequencies f 1 , f 2 , f 3 and f 4 of the same intensity or amplitude.
  • the signal received at the frequency f 3 has a greater amplitude compared to the signals received at the frequencies f 2 or f 4 on the receivers R 2 and R 4 , while on the receiver R 3 , the signal received at the frequencies f 2 and f 4 have the largest amplitudes.
  • a step 114 at least one preferred transmission frequency is chosen for each antenna E i as a function of the amplitude of the scattered waves received by each antenna E i . This step is implemented by the selection unit 50.
  • a radiofrequency wave is then emitted by each antenna E i from the network to the target at at least one frequency chosen from the previously preferred transmission frequencies during a step 116 so as to achieve a coherent addition to the target of the radio frequency waves. transmitted by the antennas E i of the network.
  • the preferred transmission frequency or frequencies chosen are those corresponding to the highest amplitude of the radiofrequency waves broadcast for all the antennas E i of the network.
  • the or each frequency selected for the transmission of a radiofrequency wave by the antennas E i of the network are common for all the antennas E i of the antenna array.
  • a single frequency is selected for transmitting a radiofrequency wave for each transmitter P i of an antenna E i of the gap network.
  • all the antennas E i of the network then emit in phase coherence a signal at the selected frequency towards the target.
  • the frequency f 3 has the greatest amplitude for a majority of the antennas E i of the gap network.
  • each emitter P i of the antennas E i of the network emits in phase coherence a wave at the selected frequency f 3 .
  • the frequency f 3 has a small amplitude for the antenna E 3 , it is preferable to favor the emission for this antenna E 3 of a wave at the frequency f 4 which has a greater amplitude.
  • a large amplitude of a frequency in the frequency spectra of the signals received by the entire gap network is characteristic of a resonance of the target while a low level on one of the receivers R i of the antennas E i of the network is characteristic of an unfavorable diffusion direction.
  • This unfavorable direction of diffusion is then also unfavorable in the event of transmission at this frequency for the antenna E i in the orientation of the target in question. Therefore, it is therefore unwise to transmit a wave at this frequency for the antenna considered.
  • this antenna E i emits a wave at a frequency which has a greater amplitude for this antenna E i .
  • the preferred transmission frequency or frequencies chosen are those corresponding to the highest amplitude of the radiofrequency waves broadcast for each antenna of the network.
  • each transmitter of the antenna array transmits a radiofrequency wave towards the target at the frequency having the greatest amplitude in the frequency spectrum of the radiofrequency signal re-broadcast by the target and received by the receiver R i of the antenna.
  • antenna E i of the network antenna E i of the network.
  • the frequency f 3 has the greatest amplitude for the antennas of the network E 2 and E N.
  • the antennas of the network E 3 and E i are respectively the frequencies f 4 and f 2 .
  • the transmitters of the antennas network E 2 , E 3 , E i and E N respectively emit a wave at the selected frequency f 3 , f 4 , f 2 , f 3 .
  • a set of frequencies is chosen by the selection unit 50 and the signal emitted by each transmitter P i of the lacunar network has a frequency spectrum comprising the frequencies of the set chosen.
  • the signal comprises several mono-frequency waves, each being transmitted at a frequency of the selected frequency set.
  • Each emitter P i of the antennas E i of the network transmits, in phase coherence, successively mono-frequency waves.
  • each transmitter P i of the antennas E i of the network transmits, in phase coherence, a mono-frequency wave successively to the two selected frequencies f 2 and f 3 .
  • the signal comprises an emitted wave which is then the sum of several mono-frequency waves, each having a frequency among the chosen frequency set.
  • the amplitude of the single-frequency waves in the radiofrequency wave transmitted is weighted according to the amplitude of their frequency in the frequency spectrum of the radio frequency signals received by all the antennas E i of the network.
  • the preferred transmission frequency or frequencies chosen are those which satisfy the achievement of the maximum of a predetermined function depending on the values representative of the amplitude of the waves diffused by the target 12 for several frequency combinations.
  • the test radio frequency wave has a frequency spectrum having two frequencies f 1 and f 2 .
  • Each receiver R i receives one of the radiofrequency waves broadcast by the target in response to the radio frequency test wave.
  • the values representative of the amplitude of these waves diffused on each receiver R i are denoted U i1 and U i2 for the frequencies f 1 and f 2 .
  • the preferred transmission frequency chosen for all the antennas E i of the network is the frequency for which the function G is maximum. In particular, this function favors the frequencies allowing the detection of harmonics, which even at very low levels, correspond to frequencies having an effect on the electronics integrated in the target.
  • waves are emitted successively in the direction of the target at frequencies chosen according to all or part of the possible variants.
  • a measurement step 118 is implemented for each antenna E i of the network receiving a radiofrequency broadcast wave of travel time t i of the radiofrequency wave diffused between the target and the antenna E i of the network.
  • each antenna E i of the network emits a signal comprising at least one wave.
  • the frequency spectrum of this signal comprises at least one selected preferred transmission frequency.
  • the transit times t i ( ⁇ ) of the signal for each selected preferred transmission frequency ⁇ are measured by the processing means T i for example, by measuring the phase of the waves diffused by the target as a function of the frequencies of emission of the radiofrequency wave emitted by the antenna E i .
  • the antennas of the network transmit a signal comprising at least one radiofrequency wave towards the target at a time preceding the arrival time of the or each wave, each having a chosen preferred transmission frequency, on the expected target. of a duration equal to t i ( ⁇ ) / c where c is the celerity of the wave.
  • This step 118 is performed after step 114 of choosing at least one preferred frequency.
  • the antennas E i of the network are synchronized together.
  • the probe antenna transmits a synchronization signal at a reference instant T 0 .
  • This signal has a frequency spectrum comprising at least the test frequencies. Subsequently, the operation will be detailed only for a test frequency ⁇ to facilitate understanding.
  • This signal is received by each receiver of the antennas E i at time T 0 + t s ( ⁇ ) + t i ( ⁇ ), that is to say after a duration t s ( ⁇ ) of propagation of the signal of synchronization for a frequency ⁇ between the probe and the target and a duration t i ( ⁇ ) of propagation of the synchronization signal for a frequency ⁇ between the target and the receiver of the antenna E i .
  • Each antenna of the lacunary network then emits a wave at a time T 0 + t s ( ⁇ ) + t i ( ⁇ ) + T ( ⁇ ) - 2 t i ( ⁇ ) + kT ⁇ with k an integer.
  • T ( ⁇ ) is a predefined duration known as the increase time in order to be sure that all the receivers have received the synchronization wave at frequency ⁇ .
  • T is defined such that T ( ⁇ ) - 2 t i ( ⁇ )> 0 for all the antennas E i of the network.
  • the duration T is unique for all the test frequencies.
  • T f is the period corresponding to the emission frequency f .
  • t i can not be measured with sufficient accuracy, in this case the phase difference at the frequency ⁇ between the signal emitted by the antenna E i and the wave backscattered by the target is measured. and received by the antenna E i , which is equal to the travel time t i modulo the period T f .
  • Each radiofrequency wave transmitted at a preferred transmission frequency chosen ⁇ by an antenna E i of the lacunary network arrives on the target after a time t i , depending on the frequency ⁇ , that is to say at a given moment T 0 + t s ( ⁇ ) + T ( ⁇ ) + kT f .
  • all the waves arrive at the same time on the target so as to obtain a coherent addition of the signals on the target for each chosen preferred transmission frequency.
  • step 118 is carried out in parallel with or before step 114 of choosing at least one preferred frequency.
  • the chosen preferred transmission frequency or frequencies are, for example, those which satisfy the achievement of the maximum of a predetermined function depending on the values representative of the amplitude of the waves diffused by the target 12 for several frequency combinations. as well as times t i .
  • the test radio frequency wave has a frequency spectrum having two frequencies f 1 and f 2 .
  • Each receiver R i receives one of the radiofrequency waves broadcast by the target in response to the radio frequency test wave.
  • the values representative of the amplitude of these waves diffused on each receiver R i are denoted U i1 and U i2 for the frequencies f 1 and f 2 .
  • the weighting coefficient h i depends on the travel time t i of the radiofrequency wave diffused between the target 12 and the antenna E i of the network.
  • the preferred transmission frequency chosen for the antennas E i of the network is the frequency for which the function G is maximum.
  • the link budget that is to say the quality of the the link is then more favorable for the antenna E 1 than for the antenna E 2 at the frequency ⁇ .
  • the amplitude of the signal received at the frequency ⁇ will be preponderant for the antenna E 1 . Therefore, the H function will be weighted to account for it.
  • the device and the method according to the invention make it possible to identify the most efficient frequencies (resonance, harmonic detection, orientation of the favorable target) and to transmit in phase coherence.
  • the choice of the optimal frequency is realized by the analysis of the level of the power received by the various antennas of the lacunary network.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (10)

  1. Verfahren zur Neutralisierung (100) eines Ziels (12), das die folgenden Schritte umfasst:
    - Senden (110) eines Testsignals, das mindestens eine Testfunkfrequenzwelle aufweist und ein Frequenzspektrum hat, das mindestens zwei unterschiedliche Testfrequenzen aufweist, durch eine Sondenantenne (16) in Richtung des Ziels (12),
    - Empfangen durch ein Netzwerk aus mindestens zwei Antennen (Ei) einer Vielzahl von Wellen, die durch das Ziel als Antwort auf das Testsignal gestreut werden, wobei jede Antenne des Netzwerks mindestens eine durch das Ziel (12) gestreute Welle empfängt, wobei das Verfahren dadurch gekennzeichnet ist, dass es mindestens die folgenden Schritte umfasst:
    - Messen eines für die Amplitude der durch das Ziel (12) in Abhängigkeit der Sendetestfrequenzen der Funkfrequenzwelle gestreuten Wellen repräsentativen Werts,
    - Auswahl (114) für jede Antenne (Ei) des Netzwerks mindestens einer bevorzugten Sendefrequenz in Abhängigkeit des für die Amplitude der gestreuten Wellen repräsentativen Werts, und
    - Senden durch jede Antenne (Ei) des Netzwerks mindestens einer Funkfrequenzwelle in Richtung des Ziels (12) mit mindestens einer bevorzugten Frequenz, die zuvor für diese Antenne ausgewählt wurde, mit einer Phase, die die kohärente Addition der von den Antennen des Netzwerks gesendeten Funkfrequenzwellen auf dem Ziel sicherstellt.
  2. Neutralisierungsverfahren nach Anspruch 1, dadurch gekennzeichnet, dass es für jede Antenne (Ei) des Netzwerks, die eine gestreute Funkfrequenzwelle empfängt, einen Messschritt der Wegezeit (ti) der gestreuten Funkfrequenzwelle zwischen dem Ziel (12) und der Antenne (Ei) des Netzwerks umfasst.
  3. Neutralisierungsverfahren nach Anspruch 2, dadurch gekennzeichnet, dass jede Antenne (Ei) des Netzwerks mit der Sondenantenne (16) synchronisiert ist und dass sie die Funkfrequenzwelle in Richtung des Ziels (12) in einem Augenblick sendet, der in Abhängigkeit von der gemessenen Wegezeit der gestreuten Funkfrequenzwelle zwischen dem Ziel (12) und der Antenne (Ei) des Netzwerks festgelegt wird.
  4. Neutralisierungsverfahren nach Anspruch 3, dadurch gekennzeichnet, dass es einen Sendeschritt eines Synchronisierungssignals durch die Sondenantenne (16) und einen Empfangsschritt dieses Synchronisierungssignals durch jede Antenne (Ei) des Netzwerks umfasst, die sich auf dieses Synchronisierungssignal synchronisiert.
  5. Neutralisierungsverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die ausgewählte(n) bevorzugte(n) Sendefrequenz(en) diejenigen ist/sind, deren für die Amplitude repräsentativer Wert der höchste ist von den gestreuten Funkfrequenzwellen die von der Gesamtheit der Antennen (Ei) des Netzwerks empfangen werden, und dass die oder jede für die Sendung einer Funkfrequenzwelle durch die Antennen des Netzwerks ausgewählte Frequenz allen Antennen (Ei) des Netzwerks gemeinsam ist.
  6. Neutralisierungsverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die für die Antenne (Ei) ausgewählte(n) bevorzugte(n) Sendefrequenzen diejenige(n) ist/sind, deren für die Amplitude repräsentativer Wert der höchste von den für jede Antenne des Netzwerks gestreuten Funkfrequenzwellen ist.
  7. Neutralisierungsverfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die ausgewählte(n) bevorzugte(n) Sendefrequenzen diejenigen sind, die das Maximum einer vorbestimmten Funktion erreichen, die von den für die Amplitude repräsentativen Werten der durch das Ziel (12) für mehrere Frequenzkombinationen gestreuten Wellen abhängt.
  8. Neutralisierungsverfahren nach Anspruch 7, wenn er von Anspruch 2 abhängt, dadurch gekennzeichnet, dass die vorbestimmte Funktion von der Wegezeit (ti) der gestreuten Funkfrequenzwelle zwischen dem Ziel (12) und der Antenne (Ei) des Netzwerks abhängt.
  9. Vorrichtung (10) zur Neutralisierung eines Ziels (12), aufweisend:
    - eine Sondenantenne (16), die ausgebildet ist, um in Richtung des Ziels (12) ein Testsignal zu senden, das mindestens eine Testfunkfrequenzwelle aufweist und ein Frequenzspektrum hat, das mindestens zwei unterschiedliche Testfrequenzen aufweist,
    - ein Netzwerk aus mindestens zwei Antennen (Ei), wobei jede Antenne ausgebildet ist, um mindestens eine durch das Ziel (12) in Antwort auf das Testsignal gestreute Funkfrequenzwelle zu empfangen und mindestens eine Funkfrequenzwelle in Richtung des Zieles zu senden,
    wobei die Vorrichtung dadurch gekennzeichnet ist, dass:
    - jede Antenne (Ei) des Netzwerks Messmittel (Ti) eines für die Amplitude der durch das Ziel (12) gestreuten Wellen in Abhängigkeit von den Testsendefrequenzen der Funkfrequenzwelle repräsentativen Werts umfasst,
    - die Vorrichtung eine Auswahleinheit (50) mindestens einer für jede Antenne (Ei) des Netzwerks bevorzugten Sendefrequenz aufweist, in Abhängigkeit des für die Amplitude der gestreuten Wellen repräsentativen Wertes,
    - jede Antenne (Ei) des Netzwerks imstande ist, eine Funkfrequenzwelle in mindestens einer bevorzugten Frequenz, die zuvor für diese Antenne ausgewählt wurde, in Richtung des Zieles zu senden (12), mit einer Phase, die die kohärente Addition der von den Antennen des Netzwerks gesendeten Funkfrequenzwellen auf dem Ziel (12) sicherstellt, und
    dass die Vorrichtung imstande ist, das Verfahren nach einem der vorangehenden Ansprüche umzusetzen.
  10. Neutralisierungsvorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass das Netzwerk von Antennen (Ei) die Sondenantenne (6) aufweist, wobei die Sondenantenne (16) ausgebildet ist, um eine durch das Ziel (12) gestreute Funkfrequenzwelle zu empfangen.
EP11306780.5A 2010-12-29 2011-12-27 Verfahren und Vorrichtung zur Neutralisierung eines Ziels Active EP2472215B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1005160A FR2970072B1 (fr) 2010-12-29 2010-12-29 Procede et dispositif de neutralisation d'une cible

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EP2472215A1 EP2472215A1 (de) 2012-07-04
EP2472215B1 true EP2472215B1 (de) 2013-08-28

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DE102014014117A1 (de) * 2014-09-24 2016-03-24 Diehl Bgt Defence Gmbh & Co. Kg Abwehrvorrichtung zum Bekämpfen eines unbemannten Luftfahrzeugs, Schutzeinrichtung zum Bekämpfen eines unbemannten Luftfahrzeugs und Verfahren zum Betrieb einer Schutzeinrichtung
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FR2970072B1 (fr) 2013-02-08
US20120212363A1 (en) 2012-08-23
FR2970072A1 (fr) 2012-07-06

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