Mobile defense system

Abstract

The present invention provides a method and system for restricting, deterring, and interfering with the movements of threatening mobile entities, thereby eliminating such threats. [Solution] The defense system comprises one or more transmitters that output specific radio waves, and a plurality of antennas 3 capable of radiating the radio waves output from the transmitters in a specific direction. The system is configured to interfere with the radio waves radiated from the plurality of antennas 3 to strengthen them at a specific point, thereby forming a radio interference wave at a specific point P. The system scans the radio waves radiated from the plurality of antennas 3 and scans the radio interference wave within a specific two- or three-dimensional region to form a radio interference region S.

Description

【Technical Field】 【0001】 The present invention relates to a defense system that performs radio wave interference by outputting specific radio waves to a moving object. 【Background Art】 【0002】 Moving objects such as flying objects, land moving objects, and ships detect position information by receiving radio waves of GNSS (Global Navigation Satellite System), and also communicate control signals via radio waves. Thus, radio waves are necessary for the operation of moving objects. Moving objects can be classified into friendly moving objects and malicious moving objects. Friendly moving objects operate based on laws and regulations, etc., and malicious moving objects are used for criminal acts such as terrorism. It is necessary to restrict, suppress, and interfere with the operation of malicious moving objects in order to prevent such criminal acts. 【0003】 In order to restrict, suppress, and interfere with the operation of such malicious moving objects, there currently exists a radio wave interference device called a jamming gun. This jamming gun has a directional antenna attached to the barrel, and radiates interference radio waves in the direction in which the barrel is pointed. This jamming gun generally suppresses and interferes with the operation by radiating interference radio waves to a target moving object to interfere with the acquisition of position information from GNSS and the communication related to the operation of the moving object. 【0004】 Problems of this jamming gun include radiating interference radio waves only in a specific direction, having a high output, being effective for radiation within sight, and requiring long-term radiation. When radiating interference radio waves at a high output over a long period of time, it will also cause radio wave interference with unrelated communications, restricting the promotion of public welfare. In addition, since radio wave interference is effective only in a specific direction, there is a risk that it cannot cope with the case where there are multiple malicious moving objects. 【0005】 Furthermore, because detection relies primarily on visual observation, detection at night is difficult, and even if a radar system for detecting moving objects is in place, the radar may be rendered ineffective if the moving object is made of a radio wave absorber. [Prior art documents] [Patent Documents] 【0006】 [Patent Document 1] Japanese Patent Publication No. 2017-28605 [Overview of the Initiative] [Problems that the invention aims to solve] 【0007】 This invention was developed with the aim of overcoming the above-mentioned drawbacks. One objective of this invention is to contribute to national security and crisis management by providing a defense system that can restrict, deter, and disrupt the movement of threatening mobile entities, thereby eliminating such threats. Furthermore, the present invention aims to provide a mobile authentication system that can restrict, deter, and interfere with the movements of threatening mobile entities, while providing relief to harmless, benevolent mobile entities without interfering with their movements. Furthermore, the present invention aims to provide a radar system that can detect the location of a moving object while restricting, deterring, or interfering with its movements. Furthermore, the present invention aims to provide a positioning system that can determine the location of a harmless, benevolent moving object while restricting, deterring, and interfering with the movement of a threatening moving object. [Means for solving the problem] 【0008】 A defense system according to one aspect of the present invention comprises one or more transmitters that emit specific radio waves, and a plurality of antennas capable of radiating radio waves emitted from the transmitters in a specific direction. The system is configured to interfere with the radio waves radiated from the plurality of antennas to strengthen them at a specific point, thereby forming a radio interference wave at the specific point. The system scans the radio waves radiated from the plurality of antennas and scans the radio interference wave within a specific two- or three-dimensional region to form a radio interference area. 【0009】 Another aspect of the present invention provides a defense system in which a plurality of antennas comprises a plurality of antenna elements and a control mechanism that controls the phase of radio waves fed to the plurality of antenna elements, and the control mechanism controls the directivity of the antennas. 【0010】 A mobile authentication system according to one aspect of the present invention comprises the defense system described above, an authenticated mobile entity, and an authentication transmitter that outputs radio waves containing information relating to the operation of the authenticated mobile entity, wherein the authenticated mobile entity includes a detection unit that detects information relating to the operation of the authenticated mobile entity from the radio waves output from the authentication transmitter. 【0011】 Another aspect of the present invention relates to a mobile authentication system in which information for detecting radio waves or operational information contained in radio waves output from an authentication transmitter is encrypted, and the authentication mobile body detection unit has means for decrypting the encrypted radio waves or encrypted information contained in radio waves. 【0012】 In another aspect of the present invention, a mobile authentication system uses the transmitter of the defense system as an authentication transmitter. 【0013】 A radar system according to one aspect of the present invention comprises the defense system described above, a receiver that receives radio waves radiated from a plurality of antennas and reflected by a moving object, and a moving object detection unit that detects information regarding the movement of a moving object based on the radio waves received by the receiver. 【0014】 Another aspect of the present invention involves a radar system that emits different radio waves from multiple antennas. 【0015】 Another aspect of the present invention provides a radar system comprising the defense system described above, a receiver that detects that radio waves emitted from a plurality of antennas are obstructed by a moving object, and a moving object detection unit that detects information regarding the movement of the moving object based on the information detected by the receiver. 【0016】 A positioning system according to one aspect of the present invention comprises the radar system described above and an authenticated authenticated mobile body, and includes a mechanism for transmitting information regarding the movement of the mobile body detected by the radar system to the authenticated mobile body. [Effects of the Invention] 【0017】 The defense system of the present invention can eliminate threats by restricting, deterring, and disrupting the movements of threatening moving objects. This is because the defense system emits radio waves from a transmitter through multiple antennas capable of radiating in a specific direction, interferes with the radio waves emitted from the multiple antennas to strengthen them at a specific point, and scans the radio waves emitted from the multiple antennas, thereby creating a radio interference field by scanning the radio interference field within a specific two- or three-dimensional region. By creating a radio interference field within a two- or three-dimensional region, this defense system can eliminate threats by restricting, deterring, and disrupting the movements of moving objects that enter this radio interference field using the radio interference field. 【0018】 Furthermore, the defense system of the present invention radiates radio interference waves at a level that would normally not affect others, in a specific direction using multiple antennas to amplify interference at a specific point. Therefore, while reducing the adverse effects on the surroundings from radio waves radiated from multiple antennas, it can form strong radio interference waves in the interference zone, effectively restricting, deterring, and disrupting the movement of a threatening moving object. 【0019】 In addition, the defense system according to claim 2 enables control of the directivity of each of the plurality of antennas by including a plurality of antennas each having a plurality of antenna elements and a control mechanism for controlling the phase of the radio wave supplied to each antenna element, and can perform radio wave interference at a more accurate and detailed specific location. 【0020】 The mobile body authentication system according to claim 3 of the present invention has the feature that it can rescue a non-threatening and bona fide mobile body without interfering with its operation while restricting, deterring, and interfering with the operation of a threatening mobile body. This is because this mobile body authentication system includes the above defense system, an authenticated mobile body, and an authentication transmitter that outputs a radio wave including information related to the operation of the authenticated mobile body, and the authenticated mobile body includes a detection unit that detects information related to the operation of the authenticated mobile body from the radio wave output from the authentication transmitter. In this mobile body authentication system, since the detection unit provided in the authenticated mobile body detects information related to the operation of the authenticated mobile body from the radio wave output from the authentication transmitter, it is possible to operate the authenticated mobile body normally even within the radio wave interference region. 【0021】 The mobile body authentication system according to claim 4 of the present invention encrypts and conceals information for detecting radio waves or information related to operations output from the authentication transmitter, and decrypts the radio waves or information fitted to the detection unit of the authenticated mobile body, so that while effectively interfering with a threatening mobile body, the operation of the authenticated mobile body can be maintained. 【0022】 The radar system according to claim 5 of the present invention can detect information related to the movement of a mobile body based on the radio wave received by a receiver that receives a radio wave output from a transmitter and reflected by the mobile body, by using the defense system and the receiver. 【0023】 The radar system according to claim 6 of the present invention can detect more accurate information related to the movement of a mobile body by radiating different radio waves from a plurality of antennas. 【0024】 The radar system according to claim 7 of the present invention can detect information regarding the movement of a moving object, including a stealth object, by detecting radio waves obstructed by a moving object that obstructs the propagation of radio waves, such as a radio wave absorber, using a receiver that detects that radio waves radiated from a plurality of antennas have been obstructed by the moving object, and a moving object detector that detects information regarding the movement of the moving object based on the information detected by the receiver. 【0025】 The positioning system according to claim 8 of the present invention can determine the position of an authenticated moving object by having a mechanism that transmits information regarding the movement of the moving object detected by the radar system to the authenticated moving object. 【Brief Description of the Drawings】 【0026】 [Figure 1] It is a conceptual diagram of a defense system according to an embodiment of the present invention. [Figure 2] It is a schematic configuration diagram of a defense system according to an embodiment of the present invention. [Figure 3] It is a schematic configuration diagram of a defense system according to another embodiment of the present invention. [Figure 4] It is a schematic configuration diagram of a defense system according to another embodiment of the present invention. [Figure 5] It is a schematic plan view showing a state in which a defense system according to an embodiment of the present invention scans radio waves to form a radio wave interference area. [Figure 6] It is a schematic front view showing a state in which a defense system according to an embodiment of the present invention scans radio waves to form a radio wave interference area. [Figure 7] It is a schematic perspective view showing an example of a radio wave interference area formed by a defense system according to another embodiment of the present invention. [Figure 8] It is a schematic perspective view showing an example of a radio wave interference area formed by a defense system according to another embodiment of the present invention. [Figure 9] It is a schematic configuration diagram of a defense system according to another embodiment of the present invention. [Figure 10]This is a schematic diagram of a defense system according to another embodiment of the present invention. [Figure 11] This is a schematic perspective view showing a phased array antenna. [Figure 12] This is a schematic plan view showing a state in which a defense system according to another embodiment of the present invention scans radio waves to form a radio interference area. [Figure 13] This is a schematic diagram of a mobile authentication system according to one embodiment of the present invention. [Figure 14] This is a conceptual diagram of a mobile authentication system according to another embodiment of the present invention. [Figure 15] This is a conceptual diagram of a mobile authentication system according to another embodiment of the present invention. [Figure 16] This is a schematic diagram of a radar system according to one embodiment of the present invention. [Figure 17] This is a schematic diagram of a radar system according to one embodiment of the present invention. [Figure 18] This is a schematic diagram of a radar system according to one embodiment of the present invention. [Figure 19] This is a schematic diagram of a radar system according to one embodiment of the present invention. [Figure 20] This is a schematic diagram of a positioning system according to one embodiment of the present invention. [Modes for carrying out the invention] 【0027】 Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments shown below are illustrative examples for realizing the technical concept of the present invention, and the present invention is not limited to the contents of the embodiments below. 【0028】 The defense system of the present invention eliminates threats by restricting, deterring, and interfering with the movements of threatening moving objects, and comprises one or more transmitters that emit specific radio waves, and a plurality of antennas capable of radiating the radio waves emitted from these transmitters in a specific direction. This defense system forms radio jamming waves at a specific location by interfering with the radio waves radiated from the plurality of antennas to strengthen them at that location. Furthermore, the defense system scans the radio waves radiated from the plurality of antennas to scan the radio jamming waves within a specific two-dimensional or three-dimensional region, thereby forming a radio jamming area. This defense system eliminates threats by restricting, deterring, and interfering with the movements of moving objects that enter the radio jamming area using the radio jamming waves. 【0029】 In this specification, "mobile objects" include flying objects such as aircraft, drones, radio-controlled airplanes, and rockets; land-based mobile objects such as automobiles, autonomous vehicles, trucks, radio-controlled cars, and mobile terminals; and sea-based mobile objects such as ships, autonomous cargo ships, and radio-controlled boats. Some of these mobile objects use positioning systems that utilize radio waves, such as GNSS, to determine their location. For such mobile objects, their operation can be restricted or suppressed by interfering with the reception of radio waves from GNSS. In addition, some mobile objects also use radio waves for transmitting information detected by sensors, transmitting image information, communication related to movement via radio control of the mobile object, and other communications related to information related to the operation of the mobile object. For these mobile objects, their operation can be restricted, suppressed, or interfered with by interfering with the reception of radio waves related to their operation. In other words, by interfering with the radio waves used to determine the location of a mobile object and the radio waves used to perform its operations, it is possible to effectively neutralize the mobile object and eliminate the threat. 【0030】 Here, mobile entities can be categorized into threatening and non-threatening entities. In this invention, as will be described in detail later, it is possible to interfere with the operation of threatening entities while allowing non-threatening entities to operate normally without interference. Therefore, in this specification, non-threatening entities can be distinguished as authenticated entities, separate from threatening or potentially threatening entities that are subject to interference. 【0031】 [Embodiment 1] (Defense System 10) An example of a defense system according to Embodiment 1 of the present invention is shown in Figures 1 to 3. In this Embodiment 1, the mobile body 1 is a flying object such as a drone, and the defense system 10 is shown to protect an area to be protected from this mobile body 1. The defense system 10 shown in these figures comprises a transmitter 2 that emits specific radio waves and a plurality of antennas 3 that can radiate the radio waves emitted from the transmitter 2 in a specific direction. This defense system 10 interferes with the radio waves radiated from the plurality of antennas 3 to strengthen them at a specific point P, thereby forming a radio jamming wave at a specific point P. Furthermore, the defense system 10 scans the radio waves radiated by the plurality of antennas 3 to scan the radio jamming wave within a specific two-dimensional or three-dimensional area, thereby forming a radio jamming area S. This defense system 10 eliminates the threat by restricting, deterring, and interfering with the operation of a mobile body 1 that has entered the radio jamming area S using the radio jamming wave. 【0032】 (Transmitter 2) Transmitter 2 is composed of one or more units and outputs a specific radio wave to multiple antennas 3. A defense system 10 equipped with one transmitter 2 can radiate radio waves of the same phase from multiple antennas 3 positioned on the output side of transmitter 2, as shown in Figure 2. This defense system 10 can radiate radio waves from antennas 3 with a phase according to the phase shifter 5 by installing a phase shifter 5 between transmitter 2 and multiple antennas 3. It is also possible to radiate radio waves from antennas 3 with a phase according to the length of the radio wave transmission path, such as a coaxial cable, placed between transmitter 2 and antennas 3. The defense system 10 shown in Figure 2 includes a phase shifter 5 positioned between transmitter 2 and each antenna 3, and a control unit 6 that controls transmitter 2. These phase shifters 5 and control unit 6 constitute a control mechanism 4 that controls the phase of the specific radio wave radiated from multiple antennas 3. This defense system 10 can interfere with the radio waves radiated from multiple antennas 3 so that they reinforce each other at a specific point P by controlling the phase of the radio waves output from one transmitter 2 and radiated from multiple antennas 3 with the control mechanism 4. 【0033】 As shown in Figure 3, a defense system 10 equipped with multiple transmitters 2 has one or more antennas 3 positioned for each of the multiple transmitters 2. This defense system 10 can control the output timing and output intensity of radio waves radiated from multiple antennas 3 by synchronizing the multiple transmitters 2, and it is also possible to change the phase. The defense system 10 shown in Figure 3 is equipped with a control mechanism 4 that controls each transmitter 2, and by adjusting the phase of the radio waves output from each transmitter 2 with this control mechanism 4, it is possible to interfere with the radio waves radiated from multiple antennas 3 so that they reinforce each other at a specific point P. Although not shown, a defense system equipped with multiple transmitters can also adjust the phase of radio waves radiated from each antenna by placing a phase shifter between each transmitter and antenna and providing a control mechanism that controls this phase shifter from a control unit. 【0034】 Furthermore, in a defense system 10 that emits radio waves from transmitter 2 through multiple antennas 3, it is also possible to change the direction of radio wave emission by changing the phase of the radio waves emitted from each antenna 3, thereby giving the radio waves emitted from the multiple antennas 3 directivity due to the phase change. 【0035】 (Multiple antennas 3) The defense system 10 is equipped with multiple antennas 3 to radiate specific radio waves output from the transmitter 2. These multiple antennas 3 can be directional or omnidirectional. Directional antennas can include Yagi-Uda antennas, patch antennas, and parabolic antennas, while omnidirectional antennas can include half-wavelength dipole antennas. In the case of Yagi-Uda antennas, the radiation direction can be changed by mechanical control. For parabolic antennas, directional control can also be achieved by using multi-beam antennas. 【0036】 Multiple antennas 3 are not limited to radiating radio waves with single polarization such as horizontal or vertical polarization, but may also use polarizations such as dual polarization, circular polarization, or elliptical polarization. Therefore, helical antennas, cross-Yagi-Uda antennas, and dual-polarization antennas can also be used. 【0037】 The defense system 10 forms radio jamming waves by interfering specific radio waves radiated from multiple antennas 3 in a way that reinforces each other at a specific location. By interfering the radio waves radiated from multiple antennas 3 in a way that reinforces each other, the amplitude of the radio jamming waves, which are amplified by the interference, can be increased while reducing the output power of the individual radio waves radiated from each antenna 3. In other words, by adjusting the phase of the radio waves radiated from multiple antennas 3, the amplitude of the composite wave at a specific point P can be increased to form radio jamming waves that restrict, suppress, and interfere with the movement of the mobile object 1. Therefore, this defense system 10 can effectively restrict, suppress, and interfere with the movement of the mobile object 1 by strengthening the radio jamming waves formed at a specific point P, while reducing the output power of the radio waves radiated from each antenna 3 and reducing adverse effects on the surroundings. 【0038】 When multiple antennas 3 have directionality, as shown in Figures 1 to 3, the directionality of the radio waves radiated from each antenna 3 can be adjusted so that they intersect at a specific point P, and by causing interference so that the radio waves reinforce each other at this specific point P, a strong radio interference wave can be formed. 【0039】 Furthermore, if multiple antennas are omnidirectional, as shown in Figure 4, strong radio interference waves can be formed by intersecting the circularly spreading radio waves radiated from each antenna 3 at a specific point P, causing the radio waves to reinforce each other at this intersection point. 【0040】 (Specific location P) A specific point P refers to a location where radio waves emitted by multiple antennas 3 can reach, and where interference is generated such that the amplitude of the radio waves output from the multiple antennas 3 increases at that specific point P. At specific point P, the radio waves that reinforce each other are combined according to the principle of superposition to form a strong radio interference wave with a larger amplitude. 【0041】 (Radio wave scanning) Furthermore, the defense system 10 of the present invention is characterized by scanning radio waves radiated from multiple antennas 3 to scan a specific point P where radio interference waves are formed within a specific two-dimensional or three-dimensional region, thereby forming a radio interference region S. This defense system 10 does not simply interfere multiple radio waves to form radio interference waves at a pinpoint location, but rather, as shown in Figures 5 and 6, scans the point where radio interference waves are formed to create a radio interference region S in two or three dimensions, thereby restricting, suppressing, and interfering with the operation of the mobile body 1. Here, Figure 5 shows a state in which a radio interference region S that extends horizontally within a predetermined area is formed by scanning the point where radio interference waves are formed in the horizontal plane as X1, X2, etc. in the figure. Also, Figure 6 shows a state in which a radio interference region S that extends vertically within a predetermined area is formed by scanning the point where radio interference waves are formed in the vertical plane as Z1, Z2, etc. in the figure. 【0042】 In other words, according to the defense system 10 of the present invention, by forming a radio interference area S in a specific two- or three-dimensional region, radio interference waves are applied to a moving object 1 that has moved into this region, thereby restricting, suppressing, and interfering with its movement. Radio wave scanning is made possible by controlling the directivity of the antenna 3, controlling the phase shifter 5, synchronizing the transmitter 2, etc., and it is possible to scan within a two- or three-dimensional region. In particular, by performing scanning by electrical control such as the control of the phase shifter 5, it becomes possible to scan a wide area in a short time. 【0043】 The radio interference area S formed by the above-described protection system 10 can have its shape and range arbitrarily set. For example, the radio interference area S can be formed in a shape that extends three-dimensionally above the area to be protected, as shown in Figures 1, 5, and 6. Furthermore, the radio interference area S can also be formed in a dome shape that surrounds the upper end of the building to be protected, as shown in the schematic diagram of Figure 7. This shape of radio interference area S can be efficiently formed, for example, by multiple antennas 3 installed on the roof of a building. Furthermore, the radio interference area S can also be formed in a two-dimensional shape, as shown in Figure 8. Figure 8 shows a state in which a radio interference area S that extends vertically in a screen-like manner between adjacent buildings is formed. This shape of radio interference area S can be efficiently formed, for example, by multiple antennas 3 installed vertically on the opposing walls of two opposing buildings. In any case of forming a radio interference area S of any shape, the desired shape can be formed by scanning the radio waves radiated from the multiple antennas 3 within a specific two-dimensional or three-dimensional area. 【0044】 (Specific radio waves) The above-described defense system 10 interferes with the radio waves related to the operation of the mobile body 1 using radio jamming waves formed by specific radio waves. These specific radio waves are radio waves that can limit, suppress, or interfere with the operation of the mobile body 1, and include jamming waves, spoofing waves, and meeconing waves. 【0045】 Jamming waves cause a degradation of the signal-to-noise ratio (SNR), which can lead to interference with radio waves and deterioration of communication quality. For example, jamming waves include random noise, white noise, sine waves, carrier waves, narrowband modulated waves, pulse waves, frequency-hopping waves, phase-modulated waves, and burst jamming waves, and these can restrict, suppress, or interfere with the operation of mobile device 1. 【0046】 Spoofing waves can deceive receivers that receive them by mimicking radio waves containing legitimate information and containing false information, thereby restricting, suppressing, or interfering with the operation of mobile object 1. For example, in the case of GNSS spoofing, it is possible to mislead GNSS receivers by emitting radio waves containing false signals, thereby causing them to misinterpret location and time information and leading mobile object 1 to a false location. 【0047】 Meekoning waves can deceive a receiver by eavesdropping on radio waves containing legitimate signals and retransmitting them, thereby containing false information—that is, information that causes the receiver to mistakenly perceive past information as current information—and thus restrict, suppress, or interfere with the operation of mobile device 1. For example, by retransmitting past GNSS signals, it is possible to reduce the accuracy of positioning or cause the receiver to misidentify its location, thereby leading mobile device 1 to a false location. 【0048】 [Embodiment 2] The defense system 10 of the present invention can use antennas whose directivity can be controlled by the control mechanism 4, which include a plurality of antenna elements 9 and a control mechanism 4 that controls the phase of radio waves fed to the plurality of antenna elements 9 as a plurality of antennas 3. Below, a defense system 10 according to Embodiment 2 of the present invention, which includes a plurality of antennas 3 whose directivity can be adjusted by phase control, will be described in detail. 【0049】 The defense system 10 shown in Figures 9 and 10 comprises one or more transmitters 2 that output specific radio waves, and a plurality of antennas 3 capable of radiating radio waves output from the transmitters 2 in a specific direction. The plurality of antennas 3 comprises a plurality of antenna elements 9 and a control mechanism 4 that controls the phase of the radio waves fed to the plurality of antenna elements 9. By controlling the phase of the radio waves fed to the plurality of antenna elements 9 with the control mechanism 4, the directivity of the radio waves radiated from the plurality of antenna elements 9 can be controlled. 【0050】 (Multiple antennas 3) The antenna 3 shown in Figures 9 to 11 is a phased array antenna 3X composed of multiple antenna elements 9. This defense system 10 can control the directionality of the antenna using the phased array antenna 3X. However, the defense system can also use multiple omnidirectional antennas as antennas whose directivity can be controlled by phase control, and give them directivity by adjusting the phase of the radio waves supplied to them. Furthermore, the defense system 10 may use the phased array antenna 3X in combination with other different antennas. 【0051】 (Multiple antenna elements 9) Multiple antenna elements 9 can generate directivity by changing the phase of the radio waves fed to each element using a phase shifter 5, etc., and radiate radio waves in a specific direction. The shape of these antenna elements 9 is not particularly specified, and various antenna elements 9 such as dipole antennas and patch antennas can be used. Furthermore, if the antenna elements support dual polarization, it is possible to radiate radio waves with horizontal polarization, vertical polarization, elliptical polarization, or circular polarization. 【0052】 (Control mechanism 4) The control mechanism 4 is connected between the transmitter 2 and each antenna element 9 and includes a plurality of phase shifters 5 that adjust the phase of the radio waves supplied from the transmitter 2, and a control unit 6 that controls each phase shifter 5 to adjust the phase of the radio waves radiated from each phase shifter 5. By controlling the phase shifters 5, the control mechanism 4 adjusts the phase of the radio waves supplied from the transmitter 2 to each antenna element 9 and adjusts the directivity of the radio waves radiated from each antenna 3. Furthermore, the control mechanism 4 can adjust the phase of the radio waves radiated from each antenna 3 so that specific radio waves radiated in a specific direction from the plurality of antennas 3 interfere with each other at a specific point P, thereby forming radio interference waves. 【0053】 The defense system 10 shown in Figure 9 is equipped with one transmitter 2, and the radio waves output from this transmitter 2 are fed to each antenna element 9 via a phase shifter 5 and an attenuator 8. The control mechanism 4 shown in this figure consists of a main control unit 7 that controls multiple antennas 3 and a control unit 6 that controls each antenna 3. Each antenna 3 adjusts its output using the control mechanism 4 to receive radio waves fed from a single transmitter 2, determining the phase output to each antenna element 9 so that they interfere with each other at a specific point P to form radio interference waves, and also determining the phase output to each antenna element 9 so as to form the directivity of each antenna 3. Here, power is supplied to each antenna element 9 via a phase shifter 5 and an attenuator 8, but the system is not limited to this means, and the configuration is not limited to controlling the output, for example, by using an amplifier. Furthermore, the main control unit 7 and control unit 6 are not limited to this configuration example, and the configuration is not limited to a single control unit 6 or a main control unit 7 controlling all the equipment, etc. 【0054】 The defense system 10 shown in Figure 10 is equipped with multiple transmitters 2, each with an antenna 3 on its output side, and consists of a main control unit 7 responsible for controlling the multiple antennas 3 and a control unit 6 responsible for controlling each antenna 3. The multiple antennas 3 are controlled by the main control unit 7, and the control unit 6 controls the transmitters 2 and the phase shifters 5 of each antenna element 9. The main control unit 7 and control unit 6 are not limited to this configuration example, and the configuration means are not limited to this, such as one control unit 6 or a main control unit 7 controlling all the equipment. 【0055】 The above-described defense system 10 also interferes with the radio waves radiated from multiple antennas 3 in such a way that they are amplified at a specific point P, thereby forming a radio interference wave at that specific point P. The specific radio waves radiated from multiple antennas 3 are radiated in a specific direction by adjusting the directivity of each antenna 3, as shown in Figures 9 and 10, and the phase of each radio wave is adjusted so that they interfere with each other in such a way that they reinforce each other at points where they intersect, forming a strong radio interference wave. As described above, the antenna 3, whose directivity can be adjusted by controlling the phase of radio waves radiated from multiple antenna elements 9, can adjust the direction of radio wave radiation by electrical control, so it is possible to easily and efficiently scan the radio waves and form an interference region S while forming an interference wave at a desired location. 【0056】 This defense system 10 uses phase control of multiple phased array antennas 3X to scan radio waves radiated from multiple antennas 3, thereby scanning the radio interference waves formed by interference within a specific two- or three-dimensional region to form a radio interference region S. Figure 12 shows an example of a defense system 10 that uses multiple antennas 3 to form a radio interference region S more efficiently. The defense system 10 shown in the figure shows a state in which a radio interference region S is formed by multiple antennas 3 arranged around a roughly rectangular area to be protected. The defense system 10 in the figure includes multiple antennas 3 arranged at the four corners of the rectangle (indicated as A to D in the figure) and multiple antennas 3 arranged in the center of the four sides of the rectangle (indicated as E to H in the figure). The defense system 10 in the figure divides the radio interference region S into multiple divided regions S1 to S4, and divides the multiple antennas 3 into multiple sets, each responsible for forming one of the divided regions S1 to S4. In the diagram, antennas 3 positioned at A, B, and E form divided region S1, antennas 3 positioned at B, C, and F form divided region S2, antennas 3 positioned at C, D, and G form divided region S3, and antennas 3 positioned at D, A, and H form divided region S4. By dividing the radio interference region S into multiple divided regions S1 to S4 in this way, and assigning multiple antennas 3 to multiple groups, radio waves can be scanned more efficiently to form the radio interference region S. 【0057】 [Embodiment 3] (Mobile Authentication System 20) Figure 13 is a schematic diagram showing a mobile authentication system according to one embodiment of the present invention. The mobile authentication system 20 shown in this figure comprises one of the defense systems 10 described above, an authenticated mobile body 11, and an authentication transmitter 12 that outputs radio waves containing information related to the operation of the authenticated mobile body 11. The authenticated mobile body 11 has a detection unit 15 that detects information related to the operation of the authenticated mobile body 11 from the radio waves output from the authentication transmitter 12. As described above, the mobile authentication system 20 with this structure provides a rescue for authenticated mobile bodies 11 that have been authenticated as non-threat mobile bodies, allowing them to operate even in a radio interference area S, as shown in Figures 14 and 15. In this mobile authentication system 20, the detection unit 15 provided on the authenticated mobile body 11 detects information related to the operation of the authenticated mobile body 11 from the radio waves output from the authentication transmitter 12, making it possible to operate the authenticated mobile body 11 normally even in a radio interference area S. 【0058】 (Authentication Mobile Entity 11) As mentioned above, the authenticated mobile entity 11 is a mobile entity that poses no threat, and refers to a mobile entity whose operation is specifically permitted, such as a mobile entity that is permitted to operate in a restricted area by law, an authenticated mobile entity, or a mobile entity that is receiving services such as a subscription service. The mobile entity authentication system 20 restricts, deterrestrializes, and interferes with the operation of a threatening mobile entity 1, while providing a remedy so that only the authenticated mobile entity 11 can bypass the defense system 10 and operate. 【0059】 The mobile authentication system 20 provides a remedy so that the authenticated mobile device 11 can operate even in locations or specific areas where the defense system 10 is active. In a specific location P or a specific radio interference area S, the defense system 10 emits radio interference waves. The mobile authentication system 20 provides a remedy for the authenticated mobile device 11 by emitting authentication radio waves containing information necessary for the operation of the authenticated mobile device 11, either separately from or using the radio interference waves themselves. Upon receiving the authentication radio waves, the authenticated mobile device 11 can maintain normal operation by detecting the information necessary for its operation from the received authentication radio waves using its detection unit 15. 【0060】 Furthermore, the mobile authentication system 20 may encrypt the radio waves output from the authentication transmitter 12 or the information related to the operation contained in the radio waves, and the detection unit 15 of the authenticated mobile body 11 may have means for decrypting the encrypted radio waves or the encrypted information contained in the radio waves. 【0061】 (Authentication transmitter 12) The mobile authentication system 20 may include a dedicated transmitter 12 that outputs authentication radio waves to the authenticated mobile body 11. This mobile authentication system 20 may include, for example, multiple authentication transmitters 12 and antennas 13 connected to these authentication transmitters 12, and each authentication transmitter 12 may output information for the authenticated mobile body 11 to perform positioning using different time signals, thereby outputting multiple time signals to the authenticated mobile body 11. The authenticated mobile body 11 can maintain its operating state by calculating its position information from the time signals of the authentication radio waves output from the authentication transmitters 2 in the detection unit 15. In addition to time signals, each antenna 3 may output information for the authenticated mobile body 11 to perform positioning using signals that include information about the directional characteristics of the radio waves it emits, or it may output other information unrelated to positioning that enables the authenticated mobile body 11 to operate normally. 【0062】 Furthermore, the authentication transmitter 12 can also use the antenna 3 of the defense system 10 without requiring a dedicated antenna 13. This structure has the advantage of reducing manufacturing costs by using the antenna installed in the defense system to transmit radio waves output from the authentication transmitter 12. 【0063】 Furthermore, the mobile authentication system 20 can also use the transmitter 2 of the defense system 10 as the authentication transmitter 12, without requiring a dedicated authentication transmitter 12. In this case, the transmitter 2 of the defense system 10 outputs radio waves for forming radio jamming waves, and outputs these radio waves for forming radio jamming waves and authentication radio waves at predetermined intervals. For example, by alternately outputting the radio waves for forming radio jamming waves and authentication radio waves as pulse waves at a predetermined period, the authenticated mobile body 11 that receives the authentication radio waves can maintain normal operation by detecting the authentication radio waves from the radio waves received by the detection unit 15 of the authenticated mobile body 11. Alternatively, the transmitter 2 may also use the radio waves for forming radio jamming waves as authentication radio waves, outputting them as pulse waves at a predetermined period. When a mobile body 1 receives these radio waves, its operation is restricted, suppressed, or interfered with as radio jamming waves, but the authenticated mobile body 11 can maintain normal operation by detecting the authentication radio waves from the radio waves received by the detection unit 15 of the authenticated mobile body 11. 【0064】 Encrypted radio waves can be encrypted by, for example, spreading the spectrum. In this case, the detection unit 15 of the authenticated mobile device 11 can detect the authenticated radio wave by acquiring and generating spreading codes and despreading codes, and based on this detected authenticated radio wave, the authenticated mobile device 11 can be operated normally. 【0065】 Furthermore, by including information encrypted with a common encryption key in the radio waves, for example, only the authenticated mobile device 11 possessing the public encryption key can decrypt the information contained in the radio waves, and the authenticated mobile device 11 can operate normally based on the detected authenticated radio waves. The detection unit 15 of the authenticated mobile device 11 stores the public encryption key and decrypts the radio waves containing encrypted information based on this stored public encryption key. 【0066】 [Embodiment 4] (Radar system 30) Figures 16 and 17 are schematic diagrams showing radar systems according to one embodiment and another embodiment. The radar system 30 shown in these figures comprises one of the defense systems 10 described above, a receiver 32 that receives radio waves radiated from a plurality of antennas 3 of the defense system 10 and reflected by a mobile body 1 or an authenticated mobile body 11, and a mobile body detection unit 34 that detects information regarding the movement of the mobile body 1 based on the radio waves received by the receiver 32. In this radar system 30, radio waves radiated from the antennas 3 of the defense system 10 are reflected by the mobile body 1 or an authenticated mobile body 11, and the receiver 32 receives these reflected radio waves, thereby allowing the mobile body detection unit 34 to detect information regarding the movement of the mobile body 1 or an authenticated mobile body 11. 【0067】 (Receiver 32) Receiver 32 receives radio waves radiated from antenna 3 of the defense system 10 and reflected by mobile body 1 or authenticated mobile body 11. As shown in Figures 16 and 17, the radio waves reflected by mobile body 1 or authenticated mobile body 11 are reflected waves of radio waves output from transmitter 2 and radiated from antenna 3 to limit, suppress, or interfere with the operation of mobile body 1 or authenticated mobile body 11, and these are applied to radar system 30. Receiver 32 shown in Figure 16 is connected to antenna 33 that receives radio waves reflected from mobile body 1 or authenticated mobile body 11. Receiver 32 can be installed independently for radar system 30 as shown in this figure. Alternatively, as shown in Figure 17, multiple antennas 3 of the defense system 10 can be used as antennas 33 for receiving reflected waves. According to this radar system 30, radio waves emitted from the antenna 3 of the defense system 10 are reflected by the mobile body 1 or the authenticated mobile body 11, and the receiver 32 receives these reflected radio waves via the antenna 3, thereby enabling the mobile body detection unit 34 to detect information regarding the movement of the mobile body 1 or the authenticated mobile body 11. 【0068】 [Embodiment 5] Figure 18 is a schematic diagram showing an example of a radar system according to another embodiment of the present invention. In this diagram, the radar system 30 is configured such that the defense system 10 causes the plurality of transmitters 2 to emit different radio waves L1 and L2, and the receiver 32 receives the reflected waves R1 and R2 that are reflected by the mobile body 1 or the authenticated mobile body 11, thereby detecting information regarding the movement of the mobile body 1 or the authenticated mobile body 11. 【0069】 (Multiple transmitters 2) Multiple transmitters 2 can be used to create a more precise radar system, such as a MIMO radar, by emitting and radiating radio waves different from those emitted from transmitter 2 in order to restrict, suppress, or interfere with the movement of the mobile object 1. Alternatively, the radar system can also be used by having each transmitter 2 emit and radiate different radio waves than those emitted from transmitter 2 to restrict, suppress, or interfere with the movement of the mobile object 1. Furthermore, radio waves emitted from antenna 3, which are emitted from authentication transmitter 12 that transmits radio waves containing movement-related information, can also be used in a radar system. Similarly, radio waves emitted from antenna 13, which are emitted from the aforementioned authentication transmitter 12, can also be used in a radar system. 【0070】 (Receiver 32) The receiver 32 detects information regarding the movement of the mobile body 1 by receiving and processing reflected waves R1 and R2 that are reflected by the mobile body 1 or authenticated mobile body 11 from the radio waves emitted from multiple transmitters 2 and authentication transmitter 12 and radiated from antennas 3 and 13. This receiver 32 may be installed independently for the radar system 30, or a mechanism may be set up in which radio waves radiated from antenna 3 of the defense system 10 are reflected by the mobile body 1 or authenticated mobile body 11, and the receiver 32 receives these reflected waves R1 and R2 by antenna 3, thereby allowing the mobile body detection unit 34 to detect information regarding the movement of the mobile body 1 or authenticated mobile body 11. 【0071】 [Embodiment 6] Figure 19 is a schematic diagram showing an example of a radar system according to another embodiment of the present invention. In this diagram, the radar system 30 outputs radio waves from multiple transmitters 2 and authentication transmitters 12 via the defense system 10 or mobile authentication system 20, which are then radiated from antennas 3 and 13. Normally, these radio waves should be received by the receiver 32, but if this is not possible, the mobile object detection unit 34 detects that a mobile object 1 or authenticated mobile object 11 that is interfering with the radio waves has moved across the path of the radio waves. 【0072】 [Embodiment 7] Figure 20 is a schematic diagram showing an example of a positioning system according to one embodiment of the present invention. In the positioning system 40 shown in this figure, information regarding the movement of a moving object 1 or authenticated moving object 11 detected by the radar system 30 is transmitted from the moving object detection unit 34 to the movement information transmission control mechanism 44, and the movement information transmitter 42 transmits information regarding the movement to the authenticated moving object 11, thereby determining the position of the authenticated moving object 11. [Industrial applicability] 【0073】 This invention contributes to national security and crisis management by enabling the restriction, deterrence, and disruption of the movements of threatening mobile entities, thereby eliminating threats. [Explanation of symbols] 【0074】 1… Mobile 2…Transmitter 3… Antenna 3X…Phased array antenna 4…Control mechanism 5…Phase Element 6…Control Unit 7... Main control unit 8... Attenuator 9… Antenna element 10…Defense System 11… Authentication Mobile 12…Authentication Transmitter 13… Antenna 14…Control mechanism 15...Detection unit 20… Mobile authentication system 30…Radar system 32... Receiver 33… Antenna 34...Moving object detection unit 40…Positioning systems 42… Mobile information transmitter 43… Antenna 44…Movement information transmission control mechanism P...Specific location S…Radio interference area

Claims

[Claim 1] One or more transmitters that emit specific radio waves, The system includes a plurality of antennas capable of radiating radio waves output from the transmitter in a specific direction. The system is configured to interfere with the radio waves radiated from the multiple antennas in such a way that they are amplified at a specific point, thereby forming radio interference waves at that specific point. A defense system characterized by scanning radio waves radiated from the plurality of antennas and scanning the radio interference waves within a specific two-dimensional or three-dimensional region to form a radio interference region. [Claim 2] A defense system according to claim 1, The aforementioned multiple antennas Multiple antenna elements, The system includes a control mechanism for controlling the phase of radio waves supplied to the plurality of antenna elements, A defense system characterized by controlling the directivity of the antenna with the control mechanism. [Claim 3] A defense system according to claim 1 or 2, Authenticated authenticated mobile entity, The system includes an authentication transmitter that outputs radio waves containing information related to the operation of the authentication mobile device, The mobile authentication system is characterized in that the authentication mobile body includes a detection unit that detects information related to the operation of the authentication mobile body from the radio waves output from the authentication transmitter. [Claim 4] A mobile authentication system as described in claim 3, The radio waves output from the authentication transmitter or the information related to the operation contained in the radio waves are encrypted, A mobile authentication system characterized in that the detection unit of the authenticated mobile body has means for decrypting the encrypted radio waves or the encrypted information contained in the radio waves. [Claim 5] A mobile authentication system according to claim 3 or 4, A mobile authentication system comprising the use of the transmitter of the defense system as the authentication transmitter. [Claim 6] A defense system according to claim 1 or 2, A receiver that receives radio waves radiated from the aforementioned multiple antennas and reflected by a moving object, A mobile object detection unit detects information regarding the movement of a mobile object based on radio waves received by the receiver, A radar system equipped with [a specific feature / feature]. [Claim 7] A radar system according to claim 6, A radar system characterized by emitting different radio waves from the aforementioned multiple antennas. [Claim 8] A defense system according to claim 1 or 2, A receiver that detects when radio waves emitted from the aforementioned multiple antennas are obstructed by a moving object, A mobile object detection unit detects information relating to the movement of a mobile object based on the information detected by the receiver, A radar system equipped with [a specific feature / feature]. [Claim 9] A radar system according to any one of claims 6 to 8, Equipped with an authenticated authenticated mobile entity, Information regarding the movement of a moving object detected by the radar system, A positioning system characterized by having a mechanism for transmitting to the authenticated mobile entity.

Images