Time service interference method and device
By constructing and transmitting multiple composite timing interference signals, the multi-source timing interference situation is simulated, so that the target device loses the real timing signal during use, and locks the multi-frequency takeover interference signal, solving the problem of wireless timing signals being easily disturbed, and improving the anti-timing interference performance and time security guarantee of the time-consuming equipment.
Patent Information
- Application Number
- CN202411659854.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-03-21
AI Technical Summary
The existing wireless timing signals are susceptible to interference, resulting in the time-consuming device being unable to obtain the time normally or the time it obtains is tampered with.
Build a multi-repetitive timing interference signal, simulate the multi-source timing interference situation, and transmit the signal, so that the target device loses the real timing signal when in use, and locks the multi-frequency takeover interference signal.
By generating and transmitting multiple repeated timing interference signals in real time, the multi-source timing interference situation is comprehensively simulated, providing a test basis for improving the anti-timing interference of the target time equipment and the improvement of time security guarantee performance.
Smart Images
Figure CN119668076A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of signal processing technology, and specifically relates to a timing interference method and device. Background Art
[0002] Time is a basic element in all aspects of information acquisition, transmission, integration and application. Accurate and reliable acquisition of time information is a prerequisite for the stable operation of important national fields such as electricity, transportation, finance, communications and national defense. At present, the commonly used time acquisition methods include GNSS timing based on space-based satellites and ground-based long-wave timing, short-wave timing and other wireless timing methods. However, since wireless timing signals are susceptible to interference, time-using equipment is prone to malicious human interference when acquiring time, resulting in the inability of time-using equipment to obtain time normally or the acquired time has been tampered with. At present, research on timing interference focuses on suppression interference and deception interference of navigation signals. Summary of the invention
[0003] In response to the above technical problems, the present application proposes a timing interference method, device and storage medium.
[0004] In a first aspect, the present application proposes a timing interference method, comprising: Construct multiple composite timing interference signals to simulate multi-source timing interference situations; Transmit multiple composite timing jamming signals to make the target timing equipment lose the real timing signal and lock the multi-frequency takeover jamming signal.
[0005] Optionally, the multiple composite timing interference signals include broadband stripping interference signals and multi-frequency takeover interference signals.
[0006] Optionally, the start time of transmitting the multi-frequency takeover interference signal in the multiple composite timing interference signals is earlier than the stop time of transmitting the broadband stripping interference signal in the multiple composite timing interference signals.
[0007] Optionally, the broadband stripping interference signal in the multiple composite timing interference signals is separated by a corresponding The power variation function of the broadband stripping interference signal of the timing signal reaching the target device, corresponding to the The center frequency of the broadband stripping interference signal of the timing signal and the corresponding The bandwidth of the broadband stripping interference signal of the timing signal is constructed.
[0008] Optionally, the power variation function of the broadband stripping interference signal in the multiple composite timing interference signals reaching the target timing device is determined by the corresponding The power variation function of the real timing signal of the timing signal of the type corresponding to the The average power gain of the broadband stripping interference signal of the timing signal and the corresponding The average power gain fluctuation of broadband stripped interference signals of timing-like signals is constructed.
[0009] Optionally, the multi-frequency takeover interference signal in the multiple composite timing interference signals is connected to the corresponding The signal with the same structure as the real timing signal of the same type of timing signal, corresponding to the The power variation function of the multi-frequency takeover interference signal of the timing signal reaches the target device and the corresponding The time decoy quantity of multi-frequency takeover interference signal similar to timing signal is constructed.
[0010] Optionally, the power variation function of the multi-frequency takeover interference signal in the multiple composite timing interference signals reaching the target timing device is determined by the corresponding The power variation function of the real timing signal of the timing signal of the type corresponding to the The input power gain of the multi-frequency takeover interference signal of the timing signal and the corresponding The traction power gain of multi-frequency takeover interference signals similar to timing signals is constructed.
[0011] In the second aspect, a timing interference device is proposed, comprising: A generation module for constructing multiple composite timing interference signals; The test module is used to transmit multiple composite timing interference signals to make the target timing equipment lose the real timing signal and lock the multi-frequency takeover interference signal.
[0012] Optionally, the generating module comprises: The first construction unit is used to construct a broadband stripping interference signal to make the target timing device lose the real timing signal; The second construction unit is used to construct a multi-frequency takeover interference signal to enable the target timing device to lock the multi-frequency takeover interference signal.
[0013] In a third aspect, a computer storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, any timing interference method in the first aspect is implemented.
[0014] In a fourth aspect, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the timing interference method as described in any one of the first aspects is implemented.
[0015] At least one embodiment of the present application has the following beneficial effects: This application aims at multi-source timing interference situations in complex environments, constructs multiple composite timing interference signals, and comprehensively simulates multi-source timing interference situations by generating and transmitting multiple composite timing interference signals in real time, providing a testing basis for improving the target timing equipment's resistance to timing interference and time security performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A flow chart of an embodiment of a timing interference method of the present application; Figure 2 This is an embodiment of a timing interference device of the present application. DETAILED DESCRIPTION
[0017] The specific implementation of the present application is further described in detail below in conjunction with the drawings and examples.
[0018] Embodiment 1 To achieve the above objectives, in a first aspect, the present application provides a timing interference method, such as Figure 1 As shown, the steps include: Step S1: construct multiple composite timing interference signals to simulate multi-source timing interference situations; Specifically, through Broadband stripping interference signals of timing signals and the The multi-frequency takeover interference signal of the timing signal-like constructs multiple composite timing interference signals; During the specific implementation process, the start time of transmitting the multi-frequency takeover interference signal in the multiple composite timing interference signals is earlier than the stop time of transmitting the broadband stripping interference signal in the multiple composite timing interference signals.
[0019] Therefore, multiple composite timing interference signals are constructed as follows: (1) in, The type of timing signal in the current environment; The number of types of timing signals in the current environment; For the Broadband stripping interference signal similar to timing signal; For the Multi-frequency takeover interference signal similar to timing signal; is the time independent variable; The moment of stopping the transmission of interference signals for broadband stripping; The starting time of transmitting the multi-frequency takeover interference signal; It is the period of transmitting multiple composite timing interference signals.
[0020] In a feasible specific implementation, the multiple composite timing interference signals include a broadband stripping interference signal and a multi-frequency takeover interference signal; Specifically, the broadband stripping interference signal is used to make the target timing device lose the real timing signal first, wherein the broadband stripping interference signal is transmitted through the corresponding The power variation function of the broadband stripping interference signal of the timing signal reaching the target device, corresponding to the The center frequency of the broadband stripping interference signal of the timing signal and the corresponding The bandwidth of the broadband stripping interference signal of the timing signal is constructed.
[0021] Construct the corresponding Broadband stripping of timing-like jammers as follows: (2) in, For the corresponding The center frequency of the broadband stripping interference signal of the timing-like signal; For the corresponding The broadband stripping of the interfering signal of the timing-like signal; For is the center frequency, is a pulse signal with bandwidth; For the corresponding The function of the power variation of the broadband stripping interference signal of the timing signal-like signal reaching the target device; is the time independent variable; The moment of stopping the transmission of interference signals for broadband stripping; in, The definition is as follows: (3) in, is a rectangular pulse function.
[0022] The power variation function of the broadband stripping interference signal in the multiple composite timing interference signals reaching the target device (i.e., corresponding to the The power variation function of the broadband stripping interference signal of the timing signal reaching the target timing device) received by the target timing device is the corresponding The power variation function of the real timing signal of the timing signal of the type corresponding to the The average power gain of the broadband stripping interference signal of the timing signal and the corresponding The average power gain fluctuation of broadband stripping interference signal of timing-like signal is constructed; The definition is as follows: (4) in, The corresponding first A function of the power variation of a real timing signal that resembles a timing signal; For the corresponding Average power gain of broadband stripped interference signal of timing-like signal; For the corresponding Average power gain fluctuation of broadband stripping interference signal of timing signal-like signal; Take the absolute value of a sinusoidal function.
[0023] Further, construct the corresponding The multi-frequency takeover interference signal of the timing signal is used to make the target timing device lock the multi-frequency takeover interference signal; specifically, by The signal with the same structure as the real timing signal of the same type of timing signal, corresponding to the The power variation function of the multi-frequency takeover interference signal of the timing signal reaches the target device and the corresponding The time decoy quantity of multi-frequency takeover interference signal similar to timing signal is constructed.
[0024] Specifically, construct the corresponding Multi-frequency takeover interference signal similar to timing signal as follows: (5) in, For the corresponding A signal similar to a timing signal having the same structure as a real timing signal; For the corresponding The variation function of the time decoy quantity of the multi-frequency takeover interference signal of the timing signal; For the corresponding The function of the power variation of the multi-frequency takeover interference signal of the timing signal-like device when it reaches the target time; is the time independent variable; The starting time of transmitting the multi-frequency takeover interference signal; It is the period of transmitting multiple composite timing interference signals.
[0025] in, The definition is as follows: (6) in, For the corresponding The time deflection rate of multi-frequency takeover interference signals similar to timing signals; The starting time of the multi-frequency takeover interference signal time decoupling; Specifically, the power change function of the device when the multi-frequency takeover interference signal reaches the target (i.e., corresponding to the The power variation function of the multi-frequency takeover interference signal of the timing signal reaching the target timing device) received by the target timing device is the corresponding The power variation function of the real timing signal of the timing signal of the type corresponding to the The input power gain of the multi-frequency takeover interference signal of the timing signal and the corresponding The construction of traction power gain of multi-frequency takeover interference signal similar to timing signal; Therefore The definition is as follows: (7) in, The corresponding first A function of the power variation of a real timing signal that resembles a timing signal; For the corresponding Feed power gain of multi-frequency takeover interference signal of similar timing signal; For the corresponding The traction power gain of multi-frequency takeover interference signals of timing-like signals.
[0026] Step S2: transmitting multiple composite timing interference signals to make the target timing device lose the real timing signal and lock the multi-frequency takeover interference signal.
[0027] Since the multiple composite timing interference signals in this embodiment include broadband stripping interference signals and multi-frequency takeover interference signals corresponding to all types of timing signals in the current environment, the transmission of the multiple composite timing interference signals needs to meet the following requirements: when When , a broadband stripping interference signal is emitted; During the specific implementation process, a broadband stripping interference signal is emitted to cause the target timing device to lose lock with the real timing signal, making it impossible to stably receive the real timing signal.
[0028] when When the multi-frequency takeover interference signal is emitted; In the specific implementation process, the multi-frequency takeover interference signal is in the stage of feeding into the target timing device between the start time of the multi-frequency takeover interference signal emission and the start time of the multi-frequency takeover interference signal time deflection; and is in the stage of pulling the target timing device between the start time of the multi-frequency takeover interference signal time deflection and the end time of the cycle of the multiple composite timing interference signal emission; That is, the multi-frequency takeover interference signal satisfies: when When , the multi-frequency takeover interference signal is in the stage of being fed into the target timing device; when At this time, the multi-frequency takeover interference signal is in the stage of pulling the target timing equipment.
[0029] By transmitting a multi-frequency takeover interference signal, the target timing device is locked onto the multi-frequency takeover interference signal, thereby being stably pulled and deflected in time.
[0030] In order to describe the specific process of the embodiment in more detail, an example is listed as follows: According to the above method, multiple composite timing interference signals are constructed in real time. Assume that the types of timing signals in the current environment are as follows: =1, indicating GPS timing signal, and =1575.42MHz, =20MHz; =2, indicating Beidou timing signal, and =1561.098MHz, =10MHz; =3, indicating long wave timing signal, and =100kHz, =1MHz; =4, indicating shortwave timing signal, and =10MHz, =20MHz; Specifically, =4, indicating that the number of types of timing signals in the current environment is 4; =4min, indicating that the broadband stripping interference signal transmission stops at the 4th minute; =3min, indicating that the start time of the multi-frequency takeover interference signal transmission is the 3rd minute; =10min, indicating that the transmission period of multiple composite timing interference signals is 10 minutes; = = = =80dB, indicating that the average power gain of the broadband stripping interference signal is 80dB; = = = =20dB: indicates that the average power gain fluctuation of the broadband stripping interference signal is 20dB; =10ns / s, indicating that the time deflection rate of the multi-frequency takeover interference signal corresponding to the GPS timing signal is 10ns / s; =10ns / s, indicating that the time deflection rate of the multi-frequency takeover interference signal corresponding to the Beidou timing signal is 10ns / s; =10us / s, indicating that the time deflection rate of the multi-frequency takeover interference signal corresponding to the long-wave timing signal is 10us / s; =10ms / s, indicating that the time deflection rate of the multi-frequency takeover interference signal corresponding to the shortwave timing signal is 10ms / s; =6min, indicating that the starting time of the multi-frequency takeover interference signal time decoupling is the 6th minute; = = = =20dB, indicating that the input power gain of the multi-frequency takeover interference signal is 20dB; = = = =10dB, indicating that the traction power gain of the multi-frequency takeover interference signal is 10dB; , indicating the corresponding first A function of the power variation of a real timing signal that resembles a timing signal, obtained by monitoring the real timing signal; , indicating that the corresponding A signal similar to a timing signal with the same structure as the real timing signal is obtained by monitoring the real timing signal.
[0031] Furthermore, the above parameters are substituted into formulas (7), (6), and (5) to construct a multi-frequency takeover interference signal; substituted into formulas (4), (3), and (2) to construct a broadband stripping interference signal; substituted into formula (1) to construct a multiple composite timing interference signal.
[0032] Then, multiple composite timing interference signals are transmitted in real time, causing the target timing equipment to lose the real timing signal first, and then lock the multi-frequency takeover interference signal. The transmission cycle of multiple composite timing interference signals is 10 minutes. Among them: From the 0th to the 4th minute, a broadband stripping interference signal is emitted, causing the target timing device to lose the real timing signal, making it impossible to stably receive the real timing signal; In the 3rd to 10th minute, a multi-frequency takeover jamming signal is emitted to make the target timing device lock onto the multi-frequency takeover jamming signal, thereby being stably pulled and deflected in time. During the 3rd to 6th minute, the multi-frequency takeover interference signal is in the stage of being fed into the target timing device, causing the target timing device to switch from receiving the real timing signal to receiving the multi-frequency takeover interference signal; During the 6th to 10th minute, the multi-frequency takeover interference signal is in the stage of pulling the target timing device, so that the target timing device is induced to be deflected in time according to the time deflection rate of the multi-frequency takeover interference signal.
[0033] According to the above method, the anti-timing interference performance of the target timing equipment is tested by constructing and transmitting multiple composite timing interference signals in real time.
[0034] A timing interference method proposed in the present application constructs multiple composite timing interference signals for multi-source timing interference situations in complex environments. By generating and transmitting multiple composite timing interference signals in real time, it comprehensively simulates multi-source timing interference situations, providing a test basis for improving the target timing equipment's resistance to timing interference and time security performance.
[0035] Embodiment 2 This embodiment proposes a timing interference device, such as Figure 2 As shown, including: A generation module for constructing multiple composite timing interference signals; Specifically, by constructing multiple composite timing interference signals, the simulation of multi-source timing interference situations is achieved; A test module for transmitting multiple composite timing interference signals; Specifically, by transmitting multiple composite timing interference signals, the target timing equipment is made to lose the real timing signal and lock the multi-frequency takeover interference signal.
[0036] In a feasible implementation manner, the generating module includes: A first construction unit is used to construct a broadband stripping interference signal; Specifically, the broadband stripping interference signal is used to make the target timing device lose the real timing signal; A second construction unit is used to construct a multi-frequency takeover interference signal; Specifically, the multi-frequency takeover interference signal is used to make the target time-using device lock onto the multi-frequency takeover interference signal.
[0037] The timing interference device provided in this embodiment has the same technical features as the timing interference method provided in the first embodiment, and therefore can solve the same technical problems and achieve the same technical effects.
[0038] Embodiment 3 The present application provides a computer storage medium on which a computer program is stored. When the program is executed by a processor, any timing interference method in Embodiment 1 is implemented.
[0039] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
[0040] Therefore, the present application also proposes a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the method described in any embodiment of the present application is implemented. The computer-readable storage medium can be configured in any device of the present application.
[0041] Embodiment 4 The present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements a timing interference method as described in any one of the first embodiments when executing the computer program.
[0042] The described method is included in the above functional descriptions and will not be repeated here.
[0043] For example, it includes: one or more processors; a storage device for storing one or more programs, when the one or more programs are executed by the one or more processors, the one or more processors implement the method provided in the embodiment of the present application. The method is included in the above functional descriptions and will not be repeated here.
[0044] The electronic device also includes an input device and an output device; the processor, storage device, input device and output device in the electronic device can be connected via a bus or other means.
[0045] As a computer-readable storage medium, the storage device can be used to store software programs, computer executable programs and module units, such as program instructions corresponding to the method in the embodiment of the present application. The storage device may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application required for a function; the storage data area may store data created according to the use of the terminal, etc. In addition, the storage device may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device may further include a memory remotely arranged relative to the processor, and these remote memories may be connected via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network and a combination thereof. The various embodiments in the present application are described in a progressive manner, and the same and similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.
[0046] The various embodiments in the present application are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.
[0047] The protection scope of the present application is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the scope and spirit of the present disclosure. If these changes and modifications fall within the scope of the claims of the present disclosure and their equivalents, the intention of the present disclosure also includes these changes and modifications.
Claims
1. A timing interference method, characterized in that: include: Construct multiple composite timing interference signals to simulate multi-source timing interference situations; Transmit multiple composite timing jamming signals to make the target timing equipment lose the real timing signal and lock the multi-frequency takeover jamming signal.
2. The timing interference method according to claim 1, characterized in that: The multiple composite timing interference signals include broadband stripping interference signals and multi-frequency takeover interference signals.
3. The timing interference method according to claim 1, characterized in that: The start time of transmitting the multi-frequency takeover interference signal in the multiple composite timing interference signals is earlier than the stop time of transmitting the broadband stripping interference signal in the multiple composite timing interference signals.
4. The timing interference method according to claim 1, characterized in that: The broadband stripping interference signal in the multiple composite timing interference signals is passed through the corresponding The power variation function of the broadband stripping interference signal of the timing signal reaching the target device, corresponding to the The center frequency of the broadband stripping interference signal of the timing signal and the corresponding The bandwidth of the broadband stripping interference signal of the timing signal is constructed.
5. The timing interference method according to claim 1, characterized in that: The power variation function of the broadband stripping interference signal in the multiple composite timing interference signals reaching the target timing device is determined by the corresponding The power variation function of the real timing signal of the timing signal of the type corresponding to the The average power gain of the broadband stripping interference signal of the timing signal and the corresponding The average power gain fluctuation of broadband stripped interference signals of timing-like signals is constructed.
6. The timing interference method according to claim 1, characterized in that: The multi-frequency takeover interference signal in the multiple composite timing interference signals is connected to the corresponding The signal with the same structure as the real timing signal of the same type of timing signal, corresponding to the The power variation function of the multi-frequency takeover interference signal of the timing signal reaches the target device and the corresponding The time decoy quantity of multi-frequency takeover interference signal similar to timing signal is constructed.
7. The timing interference method according to claim 1, characterized in that: The power variation function of the multi-frequency takeover interference signal in the multiple composite timing interference signals reaching the target timing device is determined by the corresponding The power variation function of the real timing signal of the timing signal of the type corresponding to the The input power gain of the multi-frequency takeover interference signal of the timing signal and the corresponding The traction power gain of multi-frequency takeover interference signals similar to timing signals is constructed.
8. A timing interference device, characterized in that: include: A generation module for constructing multiple composite timing interference signals; The test module is used to transmit multiple composite timing interference signals.
9. The timing interference device according to claim 8, characterized in that: The generating module comprises: A first construction unit is used to construct a broadband stripping interference signal; The second construction unit is used to construct a multi-frequency takeover interference signal.
10. A computer storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the timing interference method described in any one of claims 1 to 7 is implemented.