Signal transmitting equipment and signal jamming system

Abstract

This application discloses a signal transmitting device and a signal jamming system. The signal transmitting device includes: an exciter for receiving jamming commands sent by an external system, determining a transmission mode based on the jamming commands, and if the transmission mode is a first power amplifier transmission mode, controlling a first switching switch to open a first transmission path between a second switching switch and a first power amplifier module, and controlling the second power amplifier module to close; and sending an initial jamming signal corresponding to the jamming command to the first power amplifier module; the first power amplifier module, if the transmission mode is the first power amplifier transmission mode, performing power amplification processing on the initial jamming signal sent by the exciter to obtain a first jamming signal with a first power, and transmitting the first jamming signal to a first antenna through the first transmission path. The above-described signal transmitting device and signal jamming system can improve the signal tracking jamming speed of the signal transmitting device and enhance its jamming capability.

Description

Technical Field

[0001] This application relates to the field of communication technology, specifically to a signal transmitting device and a signal jamming system. Background Technology

[0002] A jammer is an electronic device that transmits or relays electronic jamming signals to disrupt or deceive enemy electronic equipment, reducing its effectiveness or even rendering it ineffective. Current jammers generally suffer from slow tracking and jamming response and poor jamming capabilities. Summary of the Invention

[0003] This application discloses a signal transmitting device and a signal jamming system, which can improve the signal tracking and jamming speed of the signal transmitting device and enhance the jamming capability of the signal transmitting device.

[0004] This application discloses a signal transmitting device, including an exciter, a first power amplifier module, a second power amplifier module, a first switching switch, a second switching switch, and at least one antenna. The exciter is connected to the first power amplifier module and the second power amplifier module respectively. The first switching switch is connected to the first power amplifier module and the second switching switch respectively. The second switching switch is also connected to the second power amplifier module and the at least one antenna.

[0005] The exciter is used to receive interference commands sent by an external system and determine the transmission mode according to the interference commands. If the transmission mode is the first power amplifier transmission mode, it controls the first switching switch to open the first transmission path between the second switching switch and the first power amplifier module, and controls the second power amplifier module to turn off; and sends an initial interference signal corresponding to the interference command to the first power amplifier module.

[0006] The first power amplifier module is configured to, if the transmission mode is the first power amplifier transmission mode, perform power amplification processing on the initial interference signal sent by the exciter to obtain a first interference signal with a first power, and transmit the first interference signal to the first antenna through the first transmission path;

[0007] The exciter is further configured to, if the transmission mode is the second power amplifier transmission mode, control the first power amplifier module to turn off and send an initial interference signal corresponding to the interference command to the second power amplifier module;

[0008] The second power amplifier module is used to amplify the power of the initial interference signal sent by the exciter to obtain a second interference signal with a second power if the transmission mode is the second power amplifier transmission mode, and then transmit the second interference signal to the second antenna through the second switching switch.

[0009] This application discloses a signal jamming system, which includes the signal transmitting device and external system described above.

[0010] The external system is used to send interference commands to the signal transmitting device based on the received communication signals.

[0011] This application discloses a signal transmitting device and a signal jamming system. The signal transmitting device includes an exciter, a first power amplifier module, a second power amplifier module, a first switching switch, a second switching switch, and at least one antenna. The exciter can determine the transmission mode according to the jamming command sent by an external system. If the transmission mode is the first power amplifier transmission mode, it controls the first switching switch to open the first transmission path between the second switching switch and the first power amplifier module, controls the second power amplifier module to turn off, and sends an initial jamming signal corresponding to the jamming command to the first power amplifier module. The first power amplifier module can amplify the initial jamming signal sent by the exciter to obtain a first jamming signal with a first power, and transmit the first jamming signal to the first antenna through the first transmission path. If the transmission mode is the second power amplifier transmission mode, the exciter can control the first power amplifier module to turn off and send an initial jamming signal corresponding to the jamming command to the second power amplifier module. The second power amplifier module can amplify the initial jamming signal sent by the exciter to obtain a second jamming signal with a second power, and transmit the second jamming signal to the second antenna through the second switching switch. In this embodiment, the signal transmitting device can quickly switch between the transmission channels of the first power amplifier module and the second power amplifier module, which can improve the signal tracking and interference speed of the signal transmitting device, and can transmit interference signals of different power, thereby improving the interference capability of the signal transmitting device and ensuring the stability of the entire signal interference system. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is an application scenario diagram of a signal interference system in one embodiment;

[0014] Figure 2 This is a structural block diagram of a signal transmitting device in one embodiment;

[0015] Figure 3 This is a structural block diagram of a signal transmitting device in another embodiment;

[0016] Figure 4This is a structural block diagram of the signal transmitting device in yet another embodiment;

[0017] Figure 5 This is a structural block diagram of the signal transmitting device in another embodiment;

[0018] Figure 6 Here is a structural block diagram of the signal transmitting device in one embodiment;

[0019] Figure 7 This is a structural block diagram of the first power amplifier module in one embodiment. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that the terms "comprising" and "having," and any variations thereof, in the embodiments and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0022] It is understood that the terms "first," "second," etc., used in this application may be used to describe various components, but these components are not limited by these terms. These terms are only used to distinguish one component from another. For example, without departing from the scope of this application, a first power amplifier module may be referred to as a second power amplifier module, and similarly, a second power amplifier module may be referred to as a first power amplifier module. Both the first power amplifier module and the second power amplifier module are power amplifier modules, but they are not the same power amplifier module. Furthermore, it should be noted that the terms "multiple," etc., used in the embodiments of this application refer to two or more.

[0023] Figure 1 This is a diagram illustrating an application scenario of a signal interference system in one embodiment. For example... Figure 1 As shown, during the communication transmission between communication device A and communication device B, the signal jamming system 10 can interfere with the communication transmission between communication device A and communication device B to deceive communication device A and / or communication device B. Communication device A and communication device B can be mobile terminals such as tablet computers, wearable devices, and vehicle terminals, or network devices such as base stations and radars. This application embodiment does not limit this.

[0024] In this embodiment, the signal jamming system 10 may include an external system 110 and a signal transmitting device 120. The external system 110 can acquire the communication signal transmitted between communication device A and communication device B, and send a jamming command to the signal transmitting device 120 based on the communication signal. The signal transmitting device 120 can generate the required jamming signal according to the jamming command and send the jamming signal to communication device A and / or communication device B, thereby jamming the communication transmission between communication device A and communication device B. As one implementation, the external system 110 can directly receive the communication signal transmitted between communication device A and communication device B, or the signal transmitting device 120 can first receive the communication signal transmitted between communication device A and communication device B, and then send the communication signal to the external system 110.

[0025] like Figure 2 As shown, in one embodiment, a signal transmitting device 120 is provided. The signal transmitting device 120 may include an exciter 210, a first power amplifier module 220, a second power amplifier module 230, a first switching switch 240, a second switching switch 250, and at least one antenna 260. The exciter 210 is connected to both the first power amplifier module 220 and the second power amplifier module 230. The first switching switch 240 is connected to both the first power amplifier module 220 and the second switching switch 250. The second switching switch 250 is also connected to the second power amplifier module 230 and at least one antenna 260.

[0026] Exciter 210 is used to receive interference commands sent by an external system and determine the transmission mode according to the interference commands. If the transmission mode is the first power amplifier transmission mode, it controls the first switching switch 240 to open the first transmission path between the second switching switch 250 and the first power amplifier module 220 and controls the second power amplifier module 230 to turn off; and sends an initial interference signal corresponding to the interference command to the first power amplifier module 220.

[0027] The first power amplifier module 220 is used to amplify the power of the initial interference signal sent by the exciter 210 to obtain a first interference signal with a first power if the transmission mode is the first power amplifier transmission mode, and then transmit the first interference signal to the first antenna through the first transmission path.

[0028] The exciter 210 is also used to control the first power amplifier module 220 to shut down and send an initial interference signal corresponding to the interference command to the second power amplifier module 230 if the transmission mode is the second power amplifier transmission mode.

[0029] The second power amplifier module 230 is used to amplify the power of the initial interference signal sent by the exciter 210 to obtain a second interference signal with a second power if the transmission mode is the second power amplifier transmission mode, and then transmit the second interference signal to the second antenna through the second switching switch 250.

[0030] The exciter 210 can communicate with an external system. When the external system needs to generate an interference signal, it can send an interference command to the exciter 210 of the signal transmitting device 120. In some embodiments, the interference command may carry interference parameters, which may include one or more of the following: transmission power, transmission frequency, transmission time, signal type, etc. The exciter 210 can determine a transmission mode according to the interference parameters carried in the interference command. The transmission mode may include a first power amplifier transmission mode and a second power amplifier transmission mode. The first power amplifier transmission mode and the second power amplifier transmission mode may correspond to different transmission powers (or transmission frequency bands), and power amplifier modules with different power are used to amplify the initial interference signal.

[0031] In some embodiments, an external system can acquire the communication signals transmitted between monitored communication devices and send interference commands to the signal transmitting device 210 based on the communication signals. The external system can perform analytical analysis on the communication signals, determine the interference strategy based on the analysis results, and then generate interference commands based on the interference strategy. Optionally, the interference strategy may include any one of deception interference, induced interference, smart interference, and suppression interference. Deception interference aims to deliberately create a false signal by imitating the communication signal, which can simulate the signal desired by the communication device. Induced interference aims to prevent the communication device from recognizing the real communication signal by adding other information to the deciphered communication signal after analytical analysis. Smart interference can better utilize interference capabilities by emitting a lot of noise near the center frequency of the communication device, which can overlap with and cover the real communication signal in time. Suppression interference is an active interference method that directly generates active noise signals (such as white noise) in the tuning band of the communication device to overwhelm the real communication signal.

[0032] Furthermore, the external system can select a corresponding interference strategy based on the degree of cracking of the communication signal. A pre-defined correspondence between the degree of cracking and the interference strategy can be established, and the interference strategy can be determined based on this correspondence and the degree of cracking of the acquired communication signal. For example, if the degree of cracking of the communication signal reaches 100% (i.e., complete cracking), the corresponding interference strategy could be deception interference; if the degree of cracking of the communication signal is less than 20%, the corresponding interference strategy could be suppression interference, etc., but is not limited to these. In other embodiments, the external system can also select a corresponding interference strategy based on the fields of the communication signal that have been cracked. For example, if only the message header of the communication signal has been cracked, inducement interference can be selected; if both the message header and the message information carried in the communication signal have been cracked, deception interference, etc., can be selected.

[0033] Optionally, the jamming strategy can also be set by professionals, and the external system can generate jamming commands based on the jamming strategy selected by the professionals. It should be noted that the embodiments of this application do not limit the specific method of selecting the jamming strategy.

[0034] Under different interference strategies, the required transmission power of the interference signal emitted by the signal transmitting device 120 varies. Therefore, the signal transmitting device 120 needs to select different transmission modes to emit the interference signal. Optionally, the transmission mode corresponding to deception interference, induced interference, and smart interference can be the first transmission mode, and the transmission mode corresponding to suppression interference can be the second transmission mode. The first transmission module can emit a first interference signal with a first power, and the second transmission mode can emit a second interference signal with a second power. The second power can be greater than the first power; for example, the second power can be 10 kW, and the first power can be 2 kW, but it is not limited to these. The exciter 210 can select the corresponding power amplifier transmission mode according to the interference command, so that the signal transmitting device 120 can emit interference signals that meet the requirements of the interference strategy selected by the external system, thereby improving the interference effect.

[0035] The first switching switch 240 in the signal transmitting device 120 can connect the first transmission path between the second switching switch 250 and the first power amplifier module 220 in the first power amplifier transmission mode. Further, the first power amplifier module 220 can be a 2kW power amplifier module, but is not limited to this. The second switching switch 250 can be used to switch between various antennas 260. In one specific embodiment, the first switching switch 240 can be a fast switching switch, capable of switching back and forth between multiple states to ensure rapid preparation of the communication channel and improve the tracking interference response of the signal transmitting device 120. The second switching switch 250 can be a slow switching switch, with a switching speed lower than that of the first switching switch 240, which can reduce the power consumption of the signal transmitting device 120.

[0036] The exciter 210 can select the first antenna for transmission in the first power amplifier transmission mode from the various antennas 260 connected to the second switch 250, and control the second switch 250 to switch to the first antenna. After the exciter 210 controls the first switch 240 to conduct the first transmission path, the exciter 210 can send an initial interference signal to the first power amplifier module 220. The first power amplifier module 220 amplifies the initial interference signal to obtain a first interference signal with a first power, and sends the first interference signal to the first antenna through the first transmission path, and then transmits it through the first antenna.

[0037] In the first power amplifier transmission mode, the exciter 210 can control the second power amplifier module 230 to turn off, and in the second power amplifier transmission mode, control the second power amplifier module 230 to turn on. Further, the second power amplifier module 230 can be a 10kW power amplifier module, but is not limited to this. In the second power amplifier transmission mode, the exciter 210 can control the first power amplifier module 220 to turn off. Optionally, controlling the first power amplifier module 220 to turn off can mean controlling the first switching switch 240 to make the first transmission path between the second switching switch 250 and the first power amplifier module 220 non-conductive, that is, the first power amplifier module 220 cannot transmit signals to the antenna 260. The exciter 210 can select the second antenna for transmission in the second power amplifier transmission mode from the various antennas 260 connected to the second switching switch 250, control the second switching switch 250 to switch to the second antenna, and send an initial interference signal to the second power amplifier module 230. The second power amplifier module 230 can amplify the initial interference signal to obtain a second interference signal with a second power, and send the second interference signal to the second antenna for transmission.

[0038] Optionally, the first antenna and the second antenna can be the same antenna or different antennas. In one specific implementation, the transmitting antenna for transmitting the interference signal can be the receiving antenna used by the signal transmitting device 120 to receive communication signals when in receiving mode; that is, the transmitting antenna and the receiving antenna can be the same antenna. Having the same transmitting and receiving antenna ensures that the transmitted interference signal can be received more accurately by the monitored communication device, thus improving the interference effect.

[0039] In this embodiment, the first power amplifier module 220 and the second power amplifier module 230 can ensure that the interference signal with the required transmission power is transmitted under each interference strategy, avoid insufficient signal power, improve the interference effect, and improve the stability of the signal interference system.

[0040] In some embodiments, the initial interference signal can be generated by the exciter 210 after receiving an interference command, based on the interference parameters included in the interference command. Alternatively, it can be directly generated and sent to the exciter 210 by an external system. The external system can directly generate the initial interference signal according to the selected interference strategy and send it to the exciter 210 of the signal transmitting device 120. Optionally, the initial interference signal may include, but is not limited to, audio interference signals. The exciter 210 can modulate the initial interference signal to obtain a modulated initial interference signal. Optionally, the modulated initial interference signal may be a radio frequency interference signal. The modulated initial interference signal is then sent to the first power amplifier module 220 or the second power amplifier module 230.

[0041] In this embodiment, the signal transmitting device 120 can quickly switch between the transmission channels of the first power amplifier module 220 and the second power amplifier module 230, which can improve the signal tracking and interference speed of the signal transmitting device 120, and can transmit interference signals of different power, thereby improving the interference capability of the signal transmitting device 120 and ensuring the stability of the entire signal interference system.

[0042] like Figure 3 As shown, in one embodiment, the signal transmitting device 120 includes an exciter 210, a first power amplifier module 220, a second power amplifier module 230, a first switching switch 240, a second switching switch 250, and at least one antenna 260, as well as a load unit 270. The load unit 270 is connected to a first port of the first switching switch 240, and a second port of the first switching switch 240 is connected to the second switching switch 250.

[0043] The exciter 210 is also used to control the first switch 240 to switch to the first port if the transmission mode is the second power amplifier transmission mode, so as to conduct the second transmission path between the first power amplifier module 220 and the load unit 270, and send the initial interference signal corresponding to the interference command to the second power amplifier module 230.

[0044] In the first power amplifier transmission mode, the exciter 210 can control the first switch 240 to switch to the second port to connect the first transmission path between the first power amplifier module 220 and the second switch 250, enabling the first power amplifier module 220 to transmit a first interference signal through the first antenna. In the second power amplifier transmission mode, the exciter 210 can control the second switch 240 to switch to the first port to connect the second transmission path between the first power amplifier module 220 and the load unit 270, i.e., disconnect the first transmission path, and the second power amplifier module generates a second interference signal for transmission. Compared to directly disconnecting the path of the first power amplifier module 220, this embodiment connects the second transmission path between the first power amplifier module 220 and the load unit 270, which can ensure the normal operation of the second power amplifier module 230 and avoid damage to components of other channels through spatial coupling during signal transmission, thereby improving the lifespan of the signal transmitting device 210.

[0045] Furthermore, the first switching switch 240 can be a fast switching switch, which can quickly switch back and forth between the first port and the second port, that is, quickly switch the first power amplifier module 220 back and forth between the first transmission path and the second transmission path, which can improve the speed of tracking interference.

[0046] In some embodiments, the exciter 210 is further configured to control the first switching switch 240 to switch to the first port when the signal transmitting device 120 is in the test mode for the first power amplifier module 220, so as to conduct the second transmission path between the first power amplifier module 220 and the load unit 270, and send a test interference signal to the first power amplifier module 220 so as to transmit the test interference signal through the second transmission path.

[0047] The signal transmitting device 120 can also be configured with a test mode for the first power amplifier module 220. In this test mode, it can test whether the first power amplifier module 220 can work normally and whether the corresponding transmission signal of the first power amplifier module 220 can work normally. Since the signal transmitting device 210 does not need to actually send an interference signal in the test mode for the first power amplifier module 220, the exciter 210 can control the first switch 240 to switch to the first port to conduct the second transmission path between the first power amplifier module 220 and the load unit 270, and send a test interference signal to the first power amplifier module 220. The first power amplifier module 220 can amplify the test interference signal and send the amplified test interference signal to the load unit 270. The test interference signal transmitted from the exciter 210 to the first power amplifier module 220 and then to the load unit 270 can be tested to determine whether the transmitted test interference signal meets expectations, thereby testing whether the various components on this path are normal. Optionally, an attenuator can be connected to the path to read the attenuation value on the path, thereby determining whether each component on the path is functioning properly.

[0048] In this embodiment, the first switching switch 240 can be a fast switching switch, capable of quickly switching between the first port and the second port, and quickly switching the first power amplifier module 220 between the first transmission path and the second transmission path, thus quickly switching the operating mode (transmission mode, test mode, etc.) of the first power amplifier module 220. Furthermore, by connecting the first power amplifier module 220 to the load unit 270, the normal operation of the second power amplifier module 230 can be avoided in the second power amplifier transmission mode, and testing functions can be implemented in the test mode for the first power amplifier module 220, while avoiding unnecessary interference from test interference signals to other electronic devices.

[0049] like Figure 4 As shown, in one embodiment, the signal transmitting device 120 includes, in addition to an exciter 210, a first power amplifier module 220, a second power amplifier module 230, a first switching switch 240, a second switching switch 250, at least one antenna 260, and a load unit 270, a switching matrix 280. The switching matrix 280 is connected to at least one receiver 130, and is also connected to the first switching switch 240. The at least one receiver 130 is connected to an external system 110.

[0050] The exciter 210 is also used to control the first switching switch 240 to open the third transmission path between the second switching switch 250 and the switching matrix 280 when the signal transmitting device 120 is in the receiving mode, to determine the receiving antenna from at least one antenna 260, and to control the second switching switch 250 to switch to the receiving antenna.

[0051] The switching matrix 280 is used to receive the communication signal received by the receiving antenna through the third transmission path, and send the communication signal to the receiver 130 corresponding to the receiving antenna, so that the receiver 130 transmits the communication signal to the external system 110, and the external system 110 generates an interference command based on the communication signal.

[0052] The signal transmitting device 120 may also be configured with a receiving mode. The signal transmitting device 120 may default to receiving mode and receive communication signals transmitted between the monitored communication devices. When the signal transmitting device 120 is in receiving mode, the exciter 210 may determine a receiving antenna from at least one antenna 260 and control the second switching switch 250 to switch to that receiving antenna for signal reception. Optionally, each antenna 260 may be a directional antenna, and each antenna 260 may be erected in different orientations and positions. The exciter 210 may determine a receiving antenna from at least one antenna 260 based on the relative positional relationship between the signal transmitting device 120 and the monitored communication device. The receiving direction of this receiving antenna may be matched with that of the monitored communication device, thereby ensuring accurate reception of communication signals transmitted between the monitored communication devices.

[0053] The switching matrix 280 can be used to select multiple receiving paths. In this embodiment, it may include at least one broadband receiving path and at least one narrowband receiving path, for example, one broadband receiving path and eight narrowband receiving paths. Optionally, the external system 110 can communicate with the switching matrix 280 and send control commands to the switching matrix 280 when the signal transmitting device 120 is in receiving mode, to control the switching matrix 280 to select and activate one or more receiving paths. Further, each receiving path may include at least one receiving antenna and one receiver. For example, when multiple receiving antennas are receiving signals simultaneously, the switching matrix 280 can select the receiving path between receiving antenna A and receiver 1, select the receiving path between receiving antenna B and receiver 2, etc., but is not limited to these.

[0054] When the signal transmitting device 120 is in receiving mode, the exciter 210 can control the first switching switch 240 to open the third transmission path between the second switching switch 250 and the switching matrix 280. After the receiving antenna receives the communication signal, it can transmit the communication signal to the switching matrix 280 through the third transmission path. The switching matrix sends the communication signal to the receiver 130 corresponding to the receiving antenna (i.e., the receiver on the open receiving path) according to the opened receiving path. After receiving the communication signal sent by the switching matrix 280, the receiver 130 can send the communication signal to the external system 110. The external system 110 can generate an interference command according to the received communication signal and then send the interference command to the exciter 210. The specific method by which the external system 110 generates the interference command according to the received communication signal can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

[0055] After receiving an interference command from the external system 110, the exciter 210 can switch the signal transmitting device 120 to a transmitting mode (including the first power amplifier transmitting mode and the second power amplifier transmitting mode mentioned above). In the transmitting mode, the selected transmitting antenna can be the same as the selected receiving antenna in the receiving mode, and interference signals are transmitted through this transmitting antenna. After transmitting the interference signal, the device can switch back to the receiving mode. As one implementation, the interference command sent by the external system 110 may include a transmission time point, which may include a timed transmission period. The signal transmitting device 120 can switch to the transmitting mode and transmit interference signals according to this timed transmission period, for example, transmitting an interference signal every 2 seconds for a total of 4 times, but is not limited to this. The signal transmitting device 120 can quickly switch between transmitting and receiving modes, improving its ability to track interference.

[0056] In this embodiment of the application, the switching matrix 280 in the signal transmitting device 120 can ensure that the communication signal received by the signal transmitting device 120 through the receiving antenna can be accurately transmitted to the external system 110, which further improves the subsequent interference effect and interference stability.

[0057] Please repeat as follows Figure 4As shown, in one embodiment, the first switching switch 240 may include a first switching unit 242 and a second switching unit 244 connected together. The first switching unit 242 is connected to the switching matrix 280 and the first power amplifier module 220, respectively, and the second switching unit 244 is connected to the second switching switch 250 and the load unit 270, respectively. Further, the first port ① of the first switching unit 242 may be connected to the switching matrix 280, the second port ② of the first switching unit 242 may be connected to the first power amplifier module 220, and the third port ③ of the first switching unit 242 may be connected to the second switching unit 244. The first port ① of the second switching unit 244 may be connected to the load unit 270, the second port ② of the second switching unit 244 may be connected to the second switching switch 250, and the third port ③ of the second switching unit 244 may be connected to the first switching unit 242.

[0058] The exciter 210 is also used to control the first switching unit 242 to switch to the first power amplifier module 220 and control the second switching unit 244 to switch to the second switching switch 250 if the transmission mode is the first power amplifier transmission mode, so as to connect the first transmission path between the second switching switch 250 and the first power amplifier module 220.

[0059] The exciter 210 is also used to control the first switching unit 242 to switch to the exchange matrix 280 and control the second switching unit 244 to switch to the second switching switch 250 when the signal transmitting device 120 is in the receiving mode, so as to connect the third transmission path between the second switching switch 250 and the exchange matrix 280.

[0060] The exciter 210 can be communicatively connected to the first switching unit 242 and the second switching unit 244, for example, via an RS485 communication cable, but is not limited thereto. When the signal transmitting device 120 is in the first power amplifier transmitting mode, the exciter 210 can control the first switching unit 242 to turn on the second port ② and the third port ③, and control the second switching unit 244 to turn on the third port ③ and the second port ②, thereby enabling the first transmission path from the first power amplifier module 220 to the second switching switch 250.

[0061] When the signal transmitting device 120 is in the second power amplifier transmitting mode or the test mode for the first power amplifier module 220, the exciter 210 can control the first switching unit 242 to conduct the second port ② and the third port ③, and control the second switching unit 244 to conduct the third port ③ and the first port ①, thereby conducting the second transmission path between the first power amplifier module 220 and the load unit 270.

[0062] When the signal transmitting device 120 is in receiving mode, the exciter 210 can control the first switching unit 242 to turn on the first port ① and the third port ③, and control the second switching unit 244 to turn on the third port ③ and the second port ②, thereby turning on the third transmission path from the second switching switch 250 to the switching matrix 280.

[0063] Optionally, the specific switch type or switching device of the first switch unit 242 and the second switch unit 244 is not limited in the embodiments of this application, as long as the effect of fast switching can be achieved. For example, the first switch unit 242 and the second switch unit 244 can be switch units composed of PIN diodes, but are not limited thereto.

[0064] In this embodiment, the exciter 210 controls the conduction state of the first switching unit 242 and the second switching unit 244, which can quickly switch the signal transmitting device 120 in various different modes, thereby improving the signal tracking and interference speed of the signal transmitting device 120 and enhancing the interference effect.

[0065] like Figure 5 As shown, in one embodiment, the signal transmitting device 120 described above may further include an indoor small antenna 290, which may be connected to the exciter 210.

[0066] The exciter 210 is also used to generate a third interference signal according to the interference command sent by the external system when the signal transmitting device 120 is in training mode, and to send the third interference signal to the indoor small antenna 290.

[0067] In addition to its operating modes (including the aforementioned transmission mode, reception mode, and test mode), the signal transmitting device 120 may also include a training mode, which is mainly used for indoor drills, teaching, and training. In training mode, both the first power amplifier module 220 and the second power amplifier module 230 are inactive, and the exciter 210 can directly output interference signals.

[0068] In training mode, simulated tracking and interference can be performed on two communicating electronic devices (such as two radio stations). Exciter 210 receives the communication signals transmitted between the two electronic devices and transmits the received signals to an external system via a receiver. The external system generates an interference command based on the received communication signal and sends this command to exciter 210. Exciter 210 generates a third interference signal based on this interference command. Furthermore, exciter 210 can control the signal strength of the third interference signal by controlling the attenuation of the attenuator and transmit the third interference signal to an indoor small antenna, which then transmits the third interference signal, thereby simulating interference with the communication transmission between the two electronic devices.

[0069] Optionally, in training mode, exciter 210 can control first switch unit 242 to conduct second port ② and third port ③, and control second switch unit 244 to conduct third port ③ and first port ①, thereby conducting the second transmission path between first power amplifier module 220 and load unit 270. This can avoid the influence of first power amplifier module 220 on the third interference signal sent by exciter 210, and also avoid damage to components of other channels by spatial coupling or other means during signal transmission.

[0070] After the exciter 210 transmits the third interference signal through the indoor small antenna 290, it can switch back to the receiving mode and continue to receive the communication signals transmitted between the two communicating electronic devices, which facilitates the next simulation tracking and interference.

[0071] In this embodiment, the signal transmitting device 120 has a training mode to enable use in indoor drills, teaching, training and other application scenarios, which can meet the signal interference requirements of different application scenarios and improve the application range of the signal transmitting device 120.

[0072] like Figure 6 As shown, in one embodiment, the signal transmitting device 120 described above may further include a power amplifier control module 300, which may be connected to the first power amplifier module 220 and the second power amplifier module 230 respectively, and may also be connected to the exciter 210.

[0073] The power amplifier control module 300 is used to control the amplification power of the first power amplifier module 220 and the second power amplifier module 230 respectively, so that the first power amplifier module 220 or the second power amplifier module 230 performs power amplification processing on the initial interference signal sent by the exciter 210.

[0074] The power amplifier control module 300 and the exciter 210 can exchange information via serial port or other means. The exciter 210 can send the required transmission power of the interference signal to the power amplifier control module 300 according to the received interference command. The power amplifier control module 300 can control the amplification power of the first power amplifier module 220 and the second power amplifier module 230 respectively, so that the first power amplifier module 220 or the second power amplifier module 230 performs power amplification processing on the initial interference signal sent by the exciter 210 to obtain an interference signal with the required transmission power.

[0075] In the first power amplifier transmission mode, the first power amplifier module 220, under the control of the power amplifier control module 300, amplifies the initial interference signal sent by the exciter 210 to obtain a first interference signal with a first power. The power amplifier control module 300 can acquire the first interference signal generated by the first power amplifier module 220 and determine whether the power of the first interference signal meets the first power requirement. If it does not meet the first power requirement, the first power amplifier module 220 can be further adjusted (e.g., increasing or decreasing the amplification power of the first power amplifier module 220) to ensure that the output first interference signal meets the power requirement. It should be noted that determining whether the power of the first interference signal meets the first power requirement can be done by determining whether the power of the first interference signal is the first power, or by determining whether the power of the first interference signal is within the first power range corresponding to the first power. When the power of the first interference signal is within the first power range corresponding to the first power, it is considered that the power of the first interference signal meets the first power requirement.

[0076] In the second power amplifier transmission mode, the second power amplifier module 230, under the control of the power amplifier control module 300, amplifies the initial interference signal sent by the exciter 210 to obtain a second interference signal with a second power. The power amplifier control module 300 can acquire the second interference signal generated by the second power amplifier module 230 and determine whether the power of the second interference signal meets the second power requirement. If it does not meet the second power requirement, the second power amplifier module 230 can be further adjusted (e.g., increasing or decreasing the amplification power of the second power amplifier module 230) to ensure that the output second interference signal meets the power requirement. It should be noted that determining whether the power of the second interference signal meets the second power requirement can be done by determining whether the power of the second interference signal is the second power, or by determining whether the power of the second interference signal is within the second power range corresponding to the second power. When the power of the second interference signal is within the second power range corresponding to the second power, it is considered that the power of the second interference signal meets the second power requirement.

[0077] In some embodiments, the power amplifier control module 300 may further include a display panel (not shown), which may be used to display the current mode of the signal transmitting device 120, such as the signal transmitting device 120 being in a first power amplifier transmitting mode, a second power amplifier transmitting mode, or a receiving mode; the display panel may also be used to display faulty components in the signal transmitting device 120.

[0078] In this embodiment, the power amplifier control module 300 can accurately control the power of the interference signal emitted by the signal transmitting device 120, so that the emitted interference signal meets the power requirements, avoids situations such as insufficient or excessive power of the interference signal, and improves the interference effect.

[0079] like Figure 7As shown, in one embodiment, the first power amplifier module 220 may include a first drive unit 222, a first splitter 224 and a first combiner 226. The first drive unit 222, the first splitter 224 and the first combiner 226 are respectively connected to the power amplifier control module 300. The first splitter 224 is also connected to the first drive unit 222 and the first combiner 226.

[0080] The first drive unit 222 is used to convert the received initial interference signal according to the first control signal sent by the power amplifier control module 300 to obtain the intermediate interference signal, and send the intermediate interference signal to the first splitter 224.

[0081] The first splitter 224 is used to split the intermediate interference signal into N sub-signals, and according to the second control signal sent by the power amplifier control module 300, the N sub-signals are amplified by the N power amplifier circuits respectively, where N is an integer greater than 1.

[0082] The first combiner 226 is used to combine the N power-amplified sub-signals obtained by the first splitter 224 to obtain the first interference signal with the first power.

[0083] The first drive unit 222 can receive the initial interference signal sent by the exciter 210, and convert the received initial interference signal according to the first control signal sent by the power amplifier control module 300 to obtain an intermediate interference signal. The power of the intermediate interference signal can be greater than the power of the initial interference signal. For example, the power of the initial interference signal is 5mW (milliwatts), and the power of the intermediate interference signal is 40W, etc., but it is not limited to this.

[0084] The first driving unit 222 can send the intermediate interference signal to the first splitter 224, and the first splitter 224 can split the intermediate interference signal into N sub-signals. The N sub-signals are then amplified by N power amplifier circuits. Each power amplifier circuit may include a power amplifier unit, and the amplification power of the power amplifier units on each power amplifier circuit may be the same, for example, all are 400W power amplifier units. Optionally, the power amplifier control module 300 can send a second control signal to the power amplifier control module 300 according to the required transmission power (i.e., the first power) of the interference signal. The power amplifier control module 300 can determine the number N of power circuits for power amplification according to the second control signal, split the intermediate interference signal into N sub-signals, amplify the N sub-signals by the N power amplifier circuits, and then send the N amplified sub-signals to the first combiner 226.

[0085] The first combiner 226 can combine the N power-amplified sub-signals sent by the first splitter 224 to obtain a first interference signal. The first combiner 226 can send the first interference signal to the power amplifier control module 300. The power amplifier control module 300 can determine whether the first interference signal meets the first power requirement. If it does not meet the first power requirement, the amplification power of the first splitter 224 can be adjusted so that the first combiner 226 can output the first interference signal with the first power.

[0086] In one specific implementation, the first splitter 224 may include a 1-to-8 splitter, and the first combiner 226 may include a 3kW combiner, but is not limited thereto. It should be noted that the internal structure of the second power amplifier module 230 may be similar to that of the first power amplifier module 220, and may include a second drive unit, a second splitter, and a second combiner. Its working principle can be referred to the first drive unit 222, the first splitter 224, and the first combiner 226 within the first power amplifier module 220, and will not be repeated here.

[0087] In this embodiment, by dividing and then merging the interference signal to amplify its power, the output interference signal can be guaranteed to meet the power requirements, thereby improving the accuracy of power control and enhancing the interference effect.

[0088] In some embodiments, the signal transmitting device 120 described above may further include a filtering module, which may be connected to the first power amplifier module 220, the second power amplifier module 230, and the first switching switch 240, respectively. In the first power amplifier transmission mode, after the first power amplifier module 220 generates a first interference signal, it can send the first interference signal to the filtering module. The filtering module can filter the first interference signal and send the filtered first interference signal to the first antenna through the connected first transmission path. In the second power amplifier transmission mode, after the second power amplifier module 230 generates a second interference signal, it can send the second interference signal to the filtering module. The filtering module can filter the second interference signal and send the filtered second interference signal to the second antenna.

[0089] In another implementation, the filtering module can also be connected to the first switch 240, the second power amplifier module, and the second switch 250 respectively. In the first power amplifier transmission mode, after the first power amplifier module 220 generates the first interference signal, the filtering module can receive the first interference signal sent by the first power amplifier module 220 through the first switch 240, filter the first interference signal, and then send the filtered first interference signal to the first antenna through the connected first transmission path.

[0090] Optionally, the filtering module may include a harmonic filtering module, which can be used to filter out harmonic noise present in the interference signal. The harmonic filtering module may include multiple frequency bands, while taking into account the frequency requirements of signal transmitting equipment at different power levels. For example, it can simultaneously take into account the frequency requirements of 5kW and 20kW signal transmitting equipment. The frequency band of 5kW may be 2MHz (megahertz) to 30MHz, and the frequency band of 20kW may be 4MHz to 30MHz, etc., but is not limited to these.

[0091] In some embodiments, the filtering module can also be connected to a power detection circuit. The power detection circuit is used to detect the output power of the filtering module in real time. When an abnormal output power of the filtering module is detected, it can be determined that the filtering module has malfunctioned, thereby promptly identifying the problem with the filtering module. Furthermore, the number of band switching operations of the filtering module can be statistically analyzed. When the number of switching operations of the switching switches (such as real relays) in the filtering module approaches the device limit, an early warning is issued to prompt professionals to perform timely maintenance and replacement, ensuring the normal operation of the signal transmitting equipment 120.

[0092] In this embodiment, the interference signal can be filtered by the filtering module to improve the signal quality of the interference signal output by the signal transmitting device 120 and improve the interference effect.

[0093] In some embodiments, the first power amplifier module 220 and the second power amplifier module 230 can be connected to a power supply unit, which can be a three-phase AC 380V input and can provide 48V / 300A and 24V / 20A DC regulated outputs, featuring small size and light weight. The signal transmitting device 120, as an independently operable device, can adopt a centralized power supply design or a distributed power supply design. In a centralized power supply design, the entire signal transmitting device 120 is powered by a single main power supply unit, resulting in a simpler control method. In contrast, a distributed power supply design involves multiple power supply units connected to the power amplifier modules, each supplying power to a different power amplifier module. While this method is more complex, the power supply unit has a moderate size and weight, is easy to install and maintain, and has low power loss.

[0094] In some embodiments, since the signal transmitting device 120 has a high power output during operation and generates a large amount of heat, a corresponding heat dissipation method can be selected according to actual needs, such as air cooling or water cooling. The basic principle of air cooling is that heat is conducted to the heat sink through a heat-conducting plate connected to the heat-generating unit, and then carried away from the heat sink by airflow. Water cooling refers to the use of flowing water inside the signal transmitting device 120 to carry away heat and transfer it to an external heat exchange device, thereby achieving a cooling effect. Alternatively, an external water cooling device can be installed to quickly dissipate heat through the gas-liquid phase changes of water.

[0095] In one embodiment, a signal jamming system is provided, which may include the signal transmitting device 120 described in the above embodiments and an external system, the external system being used to send jamming instructions to the signal transmitting device according to the received communication signals.

[0096] The description of the signal interference system can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[0097] In this embodiment, the signal transmitting device can quickly switch between the transmission channels of the first power amplifier module and the second power amplifier module, which can improve the signal tracking and interference speed of the signal transmitting device, and can transmit interference signals of different power, thereby improving the interference capability of the signal transmitting device and ensuring the stability of the entire signal interference system.

[0098] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also recognize that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily essential to this application.

[0099] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; they can be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0100] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0101] The foregoing has provided a detailed description of a signal transmitting device and a signal jamming system disclosed in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A signal transmitting device, characterized in that, The device includes an exciter, a first power amplifier module, a second power amplifier module, a first switching switch, a second switching switch, and at least one antenna. The exciter is connected to the first power amplifier module and the second power amplifier module, the first switching switch is connected to the first power amplifier module and the second switching switch, and the second switching switch is also connected to the second power amplifier module and the at least one antenna. The switching speed of the second switching switch is less than the switching speed of the first switching switch. The exciter is used to receive interference commands sent by an external system and determine the transmission mode according to the interference commands. If the transmission mode is the first power amplifier transmission mode, it controls the first switching switch to open the first transmission path between the second switching switch and the first power amplifier module, and controls the second power amplifier module to turn off; and sends an initial interference signal corresponding to the interference command to the first power amplifier module. The first power amplifier module is configured to, if the transmission mode is the first power amplifier transmission mode, perform power amplification processing on the initial interference signal sent by the exciter to obtain a first interference signal with a first power, and transmit the first interference signal to the first antenna through the first transmission path; The exciter is further configured to, if the transmission mode is the second power amplifier transmission mode, control the first power amplifier module to turn off and send an initial interference signal corresponding to the interference command to the second power amplifier module; wherein, controlling the first power amplifier module to turn off means controlling the first switching switch to make the first transmission path between the second switching switch and the first power amplifier module non-conductive. The second power amplifier module is used to amplify the power of the initial interference signal sent by the exciter to obtain a second interference signal with a second power if the transmission mode is the second power amplifier transmission mode, and then transmit the second interference signal to the second antenna through the second switching switch.

2. The signal transmitting device according to claim 1, characterized in that, The exciter is further configured to determine a transmission mode according to the interference strategy indicated by the interference command; wherein the interference strategy includes any one of deception interference, decoy interference, smart interference and suppression interference; the transmission mode corresponding to the deception interference, decoy interference and smart interference is the first power amplifier transmission mode, and the transmission mode corresponding to the suppression interference is the second power amplifier transmission mode. The second power is greater than the first power.

3. The signal transmitting device according to claim 1, characterized in that, The signal transmitting device further includes a load unit, which is connected to a first port of the first switching switch, and a second port of the first switching switch is connected to the second switching switch. The exciter is further configured to, if the transmission mode is the second power amplifier transmission mode, control the first switching switch to switch to the first port to conduct the second transmission path between the first power amplifier module and the load unit, and send an initial interference signal corresponding to the interference command to the second power amplifier module.

4. The signal transmitting device according to claim 3, characterized in that, The exciter is further configured to control the first switching switch to switch to the first port when the signal transmitting device is in the test mode for the first power amplifier module, so as to conduct the second transmission path between the first power amplifier module and the load unit, and send a test interference signal to the first power amplifier module so as to transmit the test interference signal through the second transmission path.

5. The signal transmitting device according to claim 1, characterized in that, The signal transmitting device further includes a switching matrix connected to at least one receiver, and the switching matrix is ​​also connected to the first switching switch. The at least one receiver is connected to the external system. The exciter is further configured to, when the signal transmitting device is in receiving mode, control the first switching switch to open the third transmission path between the second switching switch and the switching matrix, determine the receiving antenna from the at least one antenna, and control the second switching switch to switch to the receiving antenna; The switching matrix is ​​used to receive the communication signal received by the receiving antenna through the third transmission path, and send the communication signal to the receiver corresponding to the receiving antenna, so that the receiver transmits the communication signal to the external system, and the external system generates an interference command based on the communication signal.

6. The signal transmitting device according to claim 5, characterized in that, The first switching switch includes a first switching unit and a second switching unit connected together. The first switching unit is connected to the switching matrix and the first power amplifier module respectively, and the second switching unit is connected to the second switching switch. The exciter is further configured to, if the transmission mode is the first power amplifier transmission mode, control the first switching unit to switch to the first power amplifier module and control the second switching unit to switch to the second switching switch, so as to connect the first transmission path between the second switching switch and the first power amplifier module. The exciter is further configured to control the first switching unit to switch to the switching matrix and the second switching unit to switch to the second switching switch when the signal transmitting device is in receiving mode, so as to connect the third transmission path between the second switching switch and the switching matrix.

7. The signal transmitting device according to claim 1, characterized in that, The signal transmitting device also includes an indoor small antenna, which is connected to the exciter. The exciter is also used to generate a third interference signal according to the interference command sent by the external system when the signal transmitting device is in training mode, and to send the third interference signal to the indoor small antenna.

8. The signal transmitting device according to any one of claims 1 to 7, characterized in that, The signal transmitting device further includes a power amplifier control module; the power amplifier control module is connected to the first power amplifier module and the second power amplifier module respectively; The power amplifier control module is used to control the amplification power of the first power amplifier module and the second power amplifier module respectively, so that the first power amplifier module or the second power amplifier module performs power amplification processing on the initial interference signal sent by the exciter.

9. The signal transmitting device according to claim 8, characterized in that, The first power amplifier module includes a first driver unit, a first splitter, and a first combiner. The first driver unit, the first splitter, and the first combiner are respectively connected to the power amplifier control module. The first splitter is also connected to the first driver unit and the first combiner. The first driving unit is configured to convert the received initial interference signal according to the first control signal sent by the power amplifier control module to obtain an intermediate interference signal, and send the intermediate interference signal to the first splitter. The first splitter is used to split the intermediate interference signal into N sub-signals, and according to the second control signal sent by the power amplifier control module, to perform power amplification processing on the N sub-signals through N power amplifier circuits respectively, where N is an integer greater than 1; The first combiner is used to combine the N power-amplified sub-signals obtained from the first splitter to obtain a first interference signal with a first power.

10. The signal transmitting device according to any one of claims 1 to 7, characterized in that, The first power amplifier module is a 2-kilowatt power amplifier module, and the second power amplifier module is a 10-kilowatt power amplifier module.

11. A signal jamming system, characterized in that, The signal jamming system includes the signal transmitting device and external system as described in any one of claims 1 to 10; The external system is used to send interference commands to the signal transmitting device based on the received communication signals.

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