Time synchronization-based ultrashort wave signal networking simulation system and method

Abstract

The application provides a time synchronization-based ultrashort wave signal networking simulation system and method, and belongs to the technical field of signal processing. The system comprises a control module, a simulated signal generation module, a Beidou module, a control computer, a Beidou antenna and an ultrashort wave transmitting antenna, wherein the Beidou antenna is connected with the Beidou module; the Beidou module is connected with the control module; the control module is connected with the signal simulation generation module and the control computer; and the simulated signal generation module is connected with the ultrashort wave transmitting antenna. The ultrashort wave networking simulation method provided by the application is based on high-precision time synchronization provided by the Beidou module, and realizes networking simulation of ultrashort wave signals under the condition that the simulation equipment does not have an ultrashort wave wireless signal receiving link. Since the equipment omits a receiving channel, the cost of ultrashort wave networking simulation is reduced.

Description

Technical Field

[0001] This invention belongs to the field of signal processing technology, and particularly relates to a simulation system and method for UHF signal networking based on time synchronization. Background Technology

[0002] With the rapid development and application of communication technology in the military field, the status and role of electronic warfare in modern warfare have been greatly enhanced. Ultra-shortwave (UHF) signal simulation equipment, as an important electronic warfare tool under battlefield conditions, simulates and generates UHF signals to conduct tactical feints in electronic warfare, causing enemy electronic reconnaissance equipment to misjudge the location of friendly communication stations, thereby improving the battlefield survivability of friendly stations. Therefore, establishing a low-cost and effective UHF signal simulation device is particularly important.

[0003] Currently, for network simulation of UHF signals, most methods employ independent receiving links to receive and transmit RF signals from both ends for synchronization. However, signal simulation equipment generally does not require the transmission of actual data; therefore, receiving links are not essential for signal simulation equipment, and their existence leads to excessively high costs. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention proposes a simulation scheme for UHF signal networking based on time synchronization.

[0005] The first aspect of this invention discloses a time-synchronized ultra-shortwave signal networking simulation system. The system includes: a control module, an analog signal generation module, a BeiDou module, a control computer, a BeiDou antenna, and an ultra-shortwave transmitting antenna; wherein:

[0006] The BeiDou antenna is connected to the BeiDou module via an RF cable; the BeiDou module is connected to the control module via a data cable; the control module is connected to the analog signal generation module via the data cable; the analog signal generation module is connected to the VHF transmitting antenna via the RF cable; and the control module is connected to the control computer via a network cable.

[0007] The BeiDou module is configured to receive BeiDou timing signals and determine a time synchronization reference via the BeiDou antenna.

[0008] The analog signal generation module is configured to generate an ultra-shortwave radio frequency analog signal based on the time synchronization reference determined by the Beidou module and according to the preset signal parameters, under the condition that the system does not have an ultra-shortwave signal radio frequency receiving channel;

[0009] The ultra-shortwave transmitting antenna is configured to radiate and transmit the radio frequency signal generated by the analog signal generation module into space.

[0010] According to the system of the first aspect of the present invention, the BeiDou antenna is configured to: receive BeiDou satellite navigation signals and transmit the received BeiDou satellite navigation signals to the BeiDou module through the radio frequency cable;

[0011] The BeiDou module receives and parses the BeiDou satellite navigation signal, extracts the BeiDou timing signal from it to obtain UTC timing information and second pulse information, performs time synchronization with the BeiDou satellite navigation system based on the time synchronization reference, and transmits the UTC timing information and the second pulse information to the control module.

[0012] According to the system of the first aspect of the present invention, the control module is configured to:

[0013] Receive control commands issued by the control computer, collect the system status information based on the control commands, and feed back the system status information to the control computer;

[0014] The local clock is adjusted according to the received UTC timing information and the second pulse signal to perform millisecond-level time synchronization between the local clock and the BeiDou satellite navigation system;

[0015] The system receives the UHF radio frequency analog signal parameters sent by the control computer and forwards the UHF radio frequency analog signal parameters to the analog signal generation module.

[0016] According to the system of the first aspect of the present invention, the analog signal generation module is configured to:

[0017] Based on the UHF radio frequency analog signal parameters sent by the control module, a corresponding UHF radio frequency analog signal is generated. The UHF radio frequency analog signal parameters include one or more of the following: frequency, power, duration, operating mode, service type, signal source, master / slave station, and frequency hopping parameters.

[0018] The time slot for generating the UHF radio frequency analog signal is determined by the locally maintained synchronized time, and the master station and the slave station occupy their respective time slots.

[0019] According to the system of the first aspect of the present invention, the ultra-shortwave transmitting antenna is configured to radiate the radio frequency signal generated by the analog signal generation module into space using a signal radiation in the 30-88MHz frequency band.

[0020] The second aspect of this invention discloses a time-synchronized UHF signal networking simulation method, characterized in that the method implements time-synchronized UHF signal networking based on an UHF signal networking simulation system; wherein:

[0021] The system includes: a control module, an analog signal generation module, a BeiDou module, a control computer, a BeiDou antenna, and an ultra-shortwave transmitting antenna;

[0022] The BeiDou antenna is connected to the BeiDou module via an RF cable; the BeiDou module is connected to the control module via a data cable; the control module is connected to the analog signal generation module via the data cable; the analog signal generation module is connected to the VHF transmitting antenna via the RF cable; and the control module is connected to the control computer via a network cable.

[0023] The method includes:

[0024] The BeiDou module is invoked to receive BeiDou timing signals through the BeiDou antenna and determine the time synchronization reference.

[0025] The analog signal generation module is invoked to generate an ultra-shortwave radio frequency analog signal based on the time synchronization reference determined by the Beidou module and according to the preset signal parameters, under the condition that the system does not have an ultra-shortwave signal radio frequency receiving channel.

[0026] The ultra-shortwave transmitting antenna is invoked to radiate and transmit the radio frequency signal generated by the analog signal generation module into space.

[0027] According to the method of the second aspect of the present invention, the BeiDou antenna is invoked to receive BeiDou satellite navigation signals, and the received BeiDou satellite navigation signals are transmitted to the BeiDou module through the radio frequency cable.

[0028] According to the method of the second aspect of the present invention, the BeiDou module is invoked to receive and parse the BeiDou satellite navigation signal, extract the BeiDou timing signal from it to obtain UTC timing information and second pulse information, perform time synchronization with the BeiDou satellite navigation system based on the time synchronization reference, and transmit the UTC timing information and the second pulse information to the control module.

[0029] According to the method of the second aspect of the present invention, the control module is invoked:

[0030] Receive control commands issued by the control computer, collect the system status information based on the control commands, and feed back the system status information to the control computer;

[0031] The local clock is adjusted according to the received UTC timing information and the second pulse signal to perform millisecond-level time synchronization between the local clock and the BeiDou satellite navigation system;

[0032] The system receives the UHF radio frequency analog signal parameters sent by the control computer and forwards the UHF radio frequency analog signal parameters to the analog signal generation module.

[0033] According to the method of the second aspect of the present invention, the analog signal generation module is invoked to generate a corresponding ultra-shortwave radio frequency analog signal based on the ultra-shortwave radio frequency analog signal parameters sent by the control module. The ultra-shortwave radio frequency analog signal parameters include one or more of the following: frequency, power, duration, operating mode, service type, signal source, master station / slave station, and frequency hopping parameters. The time slot for generating the ultra-shortwave radio frequency analog signal is determined by the locally maintained synchronized time, and the master station and the slave station occupy their respective different time slots.

[0034] According to the method of the second aspect of the present invention, the ultra-shortwave transmitting antenna is invoked to radiate the radio frequency signal generated by the analog signal generation module into space using a signal radiation in the 30-88MHz frequency band.

[0035] A third aspect of this invention discloses an electronic device. The electronic device includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, it implements the steps of the time-synchronized ultra-shortwave signal networking simulation method described in the second aspect of this disclosure.

[0036] A fourth aspect of this invention discloses a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the time-synchronized ultra-shortwave signal networking simulation method described in the second aspect of this disclosure.

[0037] In summary, the technical solution proposed in this invention realizes the network simulation of ultra-shortwave signals through a BeiDou antenna, a BeiDou module, a control module, an analog signal generation module, an ultra-shortwave transmitting antenna, and a control computer, enabling the simulation of network communication between multiple ultra-shortwave simulation devices; it adopts a time synchronization method based on BeiDou time synchronization and second pulse, achieving millisecond-level time synchronization accuracy, ensuring that the time slot synchronization of network communication can reach the millisecond level. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 A schematic diagram of the system provided in the embodiments of this application;

[0040] Figure 2 A flowchart illustrating the method provided in the embodiments of this application;

[0041] Figure 3 A schematic diagram illustrating the BeiDou time synchronization implementation method provided in the embodiments of this application;

[0042] Figure 4 This is a structural diagram of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Currently, most simulations of bidirectional transmission and reception of VHF signals employ independent VHF radio frequency receiving links to achieve synchronous bidirectional transmission and reception. However, relying on independent VHF radio frequency receiving links does not consider the actual information transmission requirements of signal simulation, resulting in high costs and significant implementation difficulties for VHF network signal simulation.

[0045] To address the aforementioned problems, the first aspect of this invention discloses a time-synchronized simulation system for ultra-shortwave signal networking. For example... Figure 1 As shown, the system includes: a control module, an analog signal generation module, a BeiDou module, a control computer, a BeiDou antenna, and an ultra-shortwave transmitting antenna; wherein:

[0046] The BeiDou antenna is connected to the BeiDou module via an RF cable; the BeiDou module is connected to the control module via a data cable; the control module is connected to the analog signal generation module via the data cable; the analog signal generation module is connected to the VHF transmitting antenna via the RF cable; and the control module is connected to the control computer via a network cable.

[0047] The BeiDou module is configured to receive BeiDou timing signals and determine a time synchronization reference via the BeiDou antenna.

[0048] The analog signal generation module is configured to generate an ultra-shortwave radio frequency analog signal based on the time synchronization reference determined by the Beidou module and according to the preset signal parameters, under the condition that the system does not have an ultra-shortwave signal radio frequency receiving channel;

[0049] The ultra-shortwave transmitting antenna is configured to radiate and transmit the radio frequency signal generated by the analog signal generation module into space.

[0050] According to the system of the first aspect of the present invention, the BeiDou antenna is configured to: receive BeiDou satellite navigation signals and transmit the received BeiDou satellite navigation signals to the BeiDou module through the radio frequency cable;

[0051] The BeiDou module receives and parses the BeiDou satellite navigation signal, extracts the BeiDou timing signal from it to obtain UTC timing information and second pulse information, performs time synchronization with the BeiDou satellite navigation system based on the time synchronization reference, and transmits the UTC timing information and the second pulse information to the control module.

[0052] According to the system of the first aspect of the present invention, the control module is configured to:

[0053] Receive control commands issued by the control computer, collect the system status information based on the control commands, and feed back the system status information to the control computer;

[0054] The local clock is adjusted according to the received UTC timing information and the second pulse signal to perform millisecond-level time synchronization between the local clock and the BeiDou satellite navigation system;

[0055] The system receives the UHF radio frequency analog signal parameters sent by the control computer and forwards the UHF radio frequency analog signal parameters to the analog signal generation module.

[0056] According to the system of the first aspect of the present invention, the analog signal generation module is configured to:

[0057] Based on the UHF radio frequency analog signal parameters sent by the control module, a corresponding UHF radio frequency analog signal is generated. The UHF radio frequency analog signal parameters include one or more of the following: frequency, power, duration, operating mode, service type, signal source, master / slave station, and frequency hopping parameters.

[0058] The time slot for generating the UHF radio frequency analog signal is determined by the locally maintained synchronized time, and the master station and the slave station occupy their respective time slots.

[0059] According to the system of the first aspect of the present invention, the ultra-shortwave transmitting antenna is configured to radiate the radio frequency signal generated by the analog signal generation module into space using a signal radiation in the 30-88MHz frequency band.

[0060] Optionally, the control module is connected to the control computer, the analog signal generation module, and the BeiDou module. The BeiDou antenna is connected to the BeiDou module. The BeiDou module is connected to the control module. The analog signal generation module is connected to the control module and the VHF transmitting antenna.

[0061] Optionally, the device further includes a network switch. The control computer is connected to multiple control modules via the network switch.

[0062] Optionally, the VHF signal simulation equipment is used for network simulation of VHF radio stations, generating VHF simulated signals consistent with the actual signals, for use in the decoy operation of VHF radio stations.

[0063] Optionally, the analog signal generation module is used to generate an ultra-shortwave radio frequency signal according to preset signal analog parameters.

[0064] Optionally, the analog signal generation module may include one or more of the following analog signal parameters: operating mode, master / slave station attributes, frequency, amplitude, modulation style, signal duration, etc.

[0065] Optionally, the ultra-shortwave transmitting antenna is used to radiate and transmit the radio frequency signal generated by the analog signal generation module into space.

[0066] Optionally, the BeiDou antenna is used to receive BeiDou timing signals transmitted by BeiDou satellites.

[0067] Optionally, the BeiDou module is used to parse the BeiDou timing signal and output the BeiDou timing message and second pulse.

[0068] Specifically, the system includes: a BeiDou antenna, a BeiDou module, a control module, an analog signal generation module, an ultra-shortwave transmitting antenna, and a control computer; the BeiDou antenna is connected to the BeiDou module; the control module is connected to the analog signal generation module and the control computer; and the analog signal generation module is connected to the ultra-shortwave transmitting antenna. The device provided in this application achieves network simulation of ultra-shortwave signals through the BeiDou antenna, BeiDou module, control module, analog signal generation module, ultra-shortwave transmitting antenna, and control computer, enabling the simulation of network communication between multiple ultra-shortwave simulation devices; it adopts a time synchronization method based on BeiDou time synchronization and a second pulse, achieving millisecond-level time synchronization accuracy, ensuring millisecond-level time slot synchronization in network communication.

[0069] See Figure 1 This embodiment provides a time-synchronized ultra-shortwave signal networking simulation system, which includes: a Beidou antenna, a Beidou module, a control module, an analog signal generation module, an ultra-shortwave transmitting antenna, and a control computer.

[0070] 1. Beidou antenna

[0071] The BeiDou antenna is connected to the BeiDou module.

[0072] See Figure 1 In practice, the BeiDou antenna is connected to the BeiDou module via a radio frequency cable.

[0073] The BeiDou antenna is used to receive BeiDou satellite navigation signals and transmit the received signals to the BeiDou module via radio frequency cable.

[0074] The Beidou antenna is used to receive radio frequency signals radiated by Beidou navigation satellites and convert the received signals into electrical signals, which are then transmitted to the Beidou module via radio frequency cables.

[0075] 2. Beidou module

[0076] The BeiDou module is connected to the BeiDou antenna and control module.

[0077] See Figure 1 In practice, the BeiDou module is connected to the BeiDou antenna via an RF cable and to the control module via a serial data line and a second pulse data line.

[0078] The BeiDou module is used to receive the BeiDou navigation signal output by the BeiDou antenna, parse the BeiDou navigation signal, obtain the UTC timing information and second pulse information, and realize the time synchronization between the BeiDou module and the BeiDou satellite navigation system; it sends the timing information to the control module through the serial port, and transmits the second pulse signal to the control module through the data line.

[0079] The BeiDou module serves two purposes: firstly, it receives the BeiDou navigation signals output by the BeiDou antenna and obtains UTC timing information and second pulses based on the BeiDou navigation signals to achieve time synchronization with the BeiDou satellite navigation system; secondly, it sends the UTC timing information to the control module via a serial port and transmits the second pulse signal to the control module via a data line.

[0080] 3. Control Module

[0081] The control module is connected to the BeiDou module, the control computer, and the analog signal generation module, respectively.

[0082] See Figure 1 In practice, the control module is connected to the Beidou module and the analog signal generation module via data cables, and the control module controls the computer.

[0083] The control module, serving as the control center for the UHF signal simulation equipment, receives control commands from the control computer via the network, collects equipment status information, and feeds it back to the control computer via the network cable. The control module generates a local clock based on the UTC timing information and second pulse signal received from the BeiDou module, achieving millisecond-level time synchronization with the BeiDou satellite navigation system. The control module also receives UHF signal simulation parameters from the control computer and forwards them to the simulation signal generation module.

[0084] 4. Analog signal generation module

[0085] The analog signal generation module is connected to both the control module and the VHF transmitting antenna.

[0086] See Figure 1 In practice, the analog signal generation module is connected to the control module via a data cable and to the VHF transmitting antenna via an RF cable.

[0087] The analog signal generation module, as the core module for generating UHF analog signals, generates corresponding analog signals based on the analog signal parameters sent by the control module, including parameters such as frequency, power, operating mode, service type, signal transmission time, and master / slave station. Simultaneously, the time slot for generating the analog signal is determined by the locally maintained high-precision synchronization time, with the master station and each slave station occupying their own distinct time slots.

[0088] 5. Ultra-shortwave transmitting antenna

[0089] The VHF transmitting antenna is connected to the analog signal generation module via an RF cable.

[0090] See Figure 1 In practice, the VHF transmitting antenna is connected to the analog signal generation module via an RF cable.

[0091] The UHF transmitting antenna enables signal radiation in the 30-88MHz frequency band, radiating the signal generated by the analog signal generation module through the UHF transmitting antenna.

[0092] 6. Control computer

[0093] The control computer is connected to the control module via a network cable.

[0094] See Figure 1 In practice, the control computer is connected to the control module via a network cable.

[0095] The control computer is connected to the control module via a network cable to enable the control module to send control parameters and provide status information feedback.

[0096] To address the issues of lack of network simulation capabilities and high cost of transceiver delivery simulation in UHF signal simulation equipment, the second aspect of this invention discloses a UHF signal network simulation method based on time synchronization.

[0097] The method described above uses a network communication control receiver to remotely control the control module, thereby enabling parameter control and status feedback for the VHF signal simulation equipment. This VHF signal simulation equipment provides a time-synchronized VHF signal network simulation method. The time synchronization accuracy of each distributed VHF signal simulation device can reach the millisecond level. By setting the master and slave station attributes of the simulation devices, the time slots for signal transmission from each simulation device can be allocated, thus achieving network simulation of VHF signals from multiple radio stations.

[0098] The method is based on an ultra-shortwave signal networking simulation system to realize time-synchronized ultra-shortwave signal networking; wherein, the system includes: a control module, an analog signal generation module, a Beidou module, a control computer, a Beidou antenna, and an ultra-shortwave transmitting antenna.

[0099] The BeiDou antenna is connected to the BeiDou module via an RF cable; the BeiDou module is connected to the control module via a data cable; the control module is connected to the analog signal generation module via the data cable; the analog signal generation module is connected to the VHF transmitting antenna via the RF cable; and the control module is connected to the control computer via a network cable.

[0100] The method includes:

[0101] The BeiDou module is invoked to receive BeiDou timing signals through the BeiDou antenna and determine the time synchronization reference.

[0102] The analog signal generation module is invoked to generate an ultra-shortwave radio frequency analog signal based on the time synchronization reference determined by the Beidou module and according to the preset signal parameters, under the condition that the system does not have an ultra-shortwave signal radio frequency receiving channel.

[0103] The ultra-shortwave transmitting antenna is invoked to radiate and transmit the radio frequency signal generated by the analog signal generation module into space.

[0104] According to the method of the second aspect of the present invention, the BeiDou antenna is invoked to receive BeiDou satellite navigation signals, and the received BeiDou satellite navigation signals are transmitted to the BeiDou module through the radio frequency cable.

[0105] According to the method of the second aspect of the present invention, the BeiDou module is invoked to receive and parse the BeiDou satellite navigation signal, extract the BeiDou timing signal from it to obtain UTC timing information and second pulse information, perform time synchronization with the BeiDou satellite navigation system based on the time synchronization reference, and transmit the UTC timing information and the second pulse information to the control module.

[0106] According to the method of the second aspect of the present invention, the control module is invoked:

[0107] Receive control commands issued by the control computer, collect the system status information based on the control commands, and feed back the system status information to the control computer;

[0108] The local clock is adjusted according to the received UTC timing information and the second pulse signal to perform millisecond-level time synchronization between the local clock and the BeiDou satellite navigation system;

[0109] The system receives the UHF radio frequency analog signal parameters sent by the control computer and forwards the UHF radio frequency analog signal parameters to the analog signal generation module.

[0110] According to the method of the second aspect of the present invention, the analog signal generation module is invoked to generate a corresponding ultra-shortwave radio frequency analog signal based on the ultra-shortwave radio frequency analog signal parameters sent by the control module. The ultra-shortwave radio frequency analog signal parameters include one or more of the following: frequency, power, duration, operating mode, service type, signal source, master station / slave station, and frequency hopping parameters. The time slot for generating the ultra-shortwave radio frequency analog signal is determined by the locally maintained synchronized time, and the master station and the slave station occupy their respective different time slots.

[0111] According to the method of the second aspect of the present invention, the ultra-shortwave transmitting antenna is invoked to radiate the radio frequency signal generated by the analog signal generation module into space using a signal radiation in the 30-88MHz frequency band.

[0112] The time-synchronization-based UHF signal network simulation method provided in this embodiment has the following advantages: (1) It is realistic. The UHF signal simulation equipment can simulate the transmission and reception time slot allocation of each terminal when a real UHF radio network is established. (2) It has a low-cost advantage. By adopting the time-synchronization-based network simulation method, the signal simulation of the transmitting and receiving ends of other signal simulation equipment based on the receiving link is realized. Since there is no need to design a receiving link, the equipment cost can be significantly reduced. (3) It has distributed network simulation capability. The UHF signal simulation equipment can be distributed and, based on the signal simulation plan, can realize the UHF electromagnetic situation simulation capability within a certain area without the need for distributed network communication support.

[0113] Specifically, the BeiDou antenna is connected to the BeiDou module; the control module is connected to the signal simulation generation module and the control computer; and the analog signal generation module is connected to the VHF transmitting antenna. The equipment provided in this application realizes network simulation of VHF signals through the BeiDou antenna, BeiDou module, control module, analog signal generation module, VHF transmitting antenna, and control computer, enabling the simulation of network communication between multiple VHF simulation devices. It employs a time synchronization method based on a combination of BeiDou time synchronization and second pulses, achieving millisecond-level time synchronization accuracy, ensuring millisecond-level time slot synchronization for network communication.

[0114] The method provided in this embodiment includes:

[0115] 101. Power on the device.

[0116] 102. The control computer establishes a communication connection with the control module.

[0117] 103. The control module obtains the control parameters sent by the control computer and feeds back the obtained status data.

[0118] 104. The control module obtains the time signal from the Beidou module and forwards it to the analog signal generation module.

[0119] 105. The analog signal generation module obtains the signal generation control parameters and synchronization time information forwarded by the control module, and generates an ultra-shortwave analog signal within the specified time slot.

[0120] 106. The ultra-shortwave analog signal generated by the analog signal generation module is radiated out through the ultra-shortwave transmitting antenna.

[0121] Before performing step 104, the BeiDou antenna receives the timing signal sent by the BeiDou satellite and generates the BeiDou timing message and second pulse information through the parsing of the BeiDou module.

[0122] In addition, when generating 105V / UHF / UHF analog signals, control parameters such as the operating mode, operating frequency, transmission power, and signal duration of the UHF / UHF signal are selected according to the needs of the signal simulation. In actual execution, these parameters are obtained through a planning script, and all signal generation steps are completed according to the planning script.

[0123] In other words, if we are to simulate a VHF / UHF network, the time-synchronized VHF / UHF network simulation method provided in this embodiment is as follows:

[0124] 1-1. The Beidou antenna is connected to the Beidou module via an RF cable.

[0125] 1-2. The VHF transmitting antenna is connected to the analog signal generation module via an RF cable.

[0126] 1-3. Power on the UHF / UHF signal simulation equipment.

[0127] 1-4. The control computer establishes a communication connection with the control module.

[0128] 1-5. The BeiDou module obtains BeiDou timing messages and second pulses by receiving timing information from the BeiDou antenna.

[0129] 1-6. Control the computer to complete the planning script for the UHF signal network simulation and generate the signal generation control script for each distributed UHF signal simulation device. Determine the start and end times, master / slave station selection, operating mode, transmission frequency, power, and other parameters for the UHF signal simulation.

[0130] 1-8. The control module receives the signal generation script and parses the parameters. The parsed parameters are then forwarded to the analog signal generation module.

[0131] 1-9. The control module forwards the received BeiDou timing messages and second pulse signals to the analog signal generation module.

[0132] 1-10. The analog signal generation module receives BeiDou timing messages and second pulse signals, generates local time, and uses it to control the time slots for signal transmission.

[0133] 1-11. The analog signal generation module receives the signal generation parameters sent by the control module and generates the specified analog signal as required.

[0134] 1-12. Within the time slots of the UHF network communication plan, the analog signal generation module will radiate the generated analog signal through the UHF transmitting antenna.

[0135] The following is based on Figure 2 Taking this example, the time-synchronization-based UHF signal networking simulation method provided in this embodiment will be explained again when simulating UHF signal networking.

[0136] The VHF signal generation function generates the radio frequency signals required for VHF network simulation within the allocated time slots. Its control parameters mainly include source data, operating mode, operating frequency, transmit power, signal bandwidth, etc. The signal generation steps are roughly as follows:

[0137] a) Configure the ultra-shortwave signal simulation equipment according to Figure 1 The connection is as follows: the Beidou antenna is connected to the Beidou module via an RF cable, the ultra-shortwave transmitting antenna is connected to the analog signal generation module via an RF cable, and the control computer is connected to the control module via a network cable. The device is then powered on.

[0138] b) Open the host computer software of the control computer and establish a communication connection between the control computer and the control terminal via Ethernet;

[0139] c) The planning of the UHF signal generation sequence is realized through the host computer software, forming a planning script for UHF signal network simulation, and further generating the signal generation scripts for each individual device;

[0140] d) The signal generation script is sent to the control module via the network. The control module parses the signal generation script, obtains the control parameters of the analog signal generation module, and sends them to the analog signal generation module. The analog signal generation module receives the second-pulse BeiDou timing message information sent by the BeiDou module and forwards it to the analog signal generation module.

[0141] e) The analog signal generation module receives the control parameters sent by the control module and generates an ultra-shortwave radio frequency signal according to the control parameters;

[0142] f) The analog signal generation module receives BeiDou time synchronization messages and second pulses, and simultaneously uses the second pulses and BeiDou time synchronization messages to generate a high-precision local time, which is then synchronized with the BeiDou time synchronization time. The ultra-shortwave radio frequency signal generated by the analog signal generation module is transmitted to the ultra-shortwave transmitting antenna via radio frequency cable within the specified time and time slot.

[0143] g) The VHF transmitting antenna receives the radio frequency signal generated by the analog signal generation module and radiates it into the external space through the VHF transmitting antenna;

[0144] h) The control module continues to parse the signal generation script, obtain the control parameters of the analog signal generation module, and send them to the analog signal generation module. Repeat steps e) to g) until the control module finishes parsing the signal generation script.

[0145] i) The simulation task of UHF / UHF networking has ended.

[0146] When generating UHF signals, after executing step 109, the generated local BeiDou synchronization time is returned to the control module, providing local BeiDou synchronization time support for the control module.

[0147] Achieving high-precision BeiDou time synchronization through the second pulse and BeiDou timing messages output by the BeiDou module is crucial for simulating UHF signal networking based on time synchronization. The BeiDou positioning and timing message includes a second pulse and timing information. The BeiDou timing message is typically transmitted via a serial port or other data interface, while the second pulse is transmitted via GPIO. After receiving the BeiDou timing message and second pulse, the signal processing module achieves local BeiDou time synchronization as follows:

[0148] 2-1. The time (year, month, day, hour, minute, second) of the BeiDou time synchronization message via the BeiDou module.

[0149] 2-2. Obtain the rising edge of the second pulse through the GPIO port (sampling clock 100M).

[0150] 2-3. Synchronize local millisecond, microsecond, and nanosecond counts based on the rising edge of the second pulse (counting clock 100M), and clear the local millisecond, microsecond, and nanosecond counts after the rising edge of the second pulse.

[0151] 2-4. The year, month, day, hour, minute, second, millisecond, microsecond, and nanosecond time values ​​of the analog signal generation module are updated synchronously, and the control module can read them as needed.

[0152] The following is based on Figure 3 Taking this example, the BeiDou time synchronization method provided in this embodiment will be explained again when performing BeiDou time synchronization.

[0153] The analog signal generation module generates a local high-precision BeiDou synchronization time based on the received BeiDou time synchronization messages and second pulses, including time information such as year, month, day, hour, minute, second, millisecond, microsecond, and nanosecond. The steps for generating BeiDou synchronization time are roughly as follows:

[0154] a) Connect the BeiDou antenna and BeiDou module according to... Figure 1 The BeiDou module is connected to the control module via a data interface and GPIO, and the control module is connected to the analog signal generation module via a data interface. The device is then powered on.

[0155] b) The BeiDou module receives BeiDou timing signals through the BeiDou antenna, parses them, outputs BeiDou timing messages through the data interface, and outputs second pulse information through GPIO.

[0156] c) After receiving the timing message and the second pulse, the analog signal generation module starts timing from the second pulse. The timing message accuracy is down to the second level. The milliseconds, microseconds, and nanoseconds are recounted with a 100MHz clock starting from the second pulse, thereby generating the BeiDou synchronization time of each device on the local device.

[0157] d) The analog signal generation module generates a local high-precision BeiDou synchronization time, including time information such as year, month, day, hour, minute, second, millisecond, microsecond, and nanosecond, and updates it synchronously to the local time register;

[0158] e) After receiving the BeiDou time synchronization message and the second pulse, the analog signal generation module repeats process c) to d) to continuously update the local BeiDou time;

[0159] e) The control module obtains the BeiDou synchronization time from the corresponding registers through the data interface according to application requirements;

[0160] f) After the analog signal generation module generates the UHF signal, it obtains the time slot for transmitting the UHF network analog signal based on the network simulation master-slave station attribute division and the local BeiDou synchronization time, and then transmits the UHF analog signal in the time slot.

[0161] The method described herein achieves network simulation of UHF signals based on high-precision time synchronization using a BeiDou antenna, BeiDou module, control module, analog signal generation module, UHF transmitting antenna, and control computer. It enables the simulation of network communication between multiple UHF simulation devices. By reducing the number of UHF signal receiving links, it significantly reduces material and human development costs.

[0162] A third aspect of this invention discloses an electronic device. The electronic device includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, it implements the steps of the time-synchronized ultra-shortwave signal networking simulation method described in the second aspect of this disclosure.

[0163] Figure 4 This is a structural diagram of an electronic device according to an embodiment of the present invention, such as... Figure 4 As shown, the electronic device includes a processor, memory, communication interface, display screen, and input device connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, carrier networks, Near Field Communication (NFC), or other technologies. The display screen can be an LCD screen or an e-ink screen. The input device can be a touch layer covering the display screen, buttons, a trackball, or a touchpad mounted on the device's casing, or an external keyboard, touchpad, or mouse.

[0164] Those skilled in the art will understand that Figure 4 The structure shown is merely a structural diagram of the part related to the technical solution of this disclosure and does not constitute a limitation on the electronic device to which the solution of this application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0165] A fourth aspect of this invention discloses a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the time-synchronized ultra-shortwave signal networking simulation method described in the second aspect of this disclosure.

[0166] In summary, the technical solution proposed in this invention realizes the network simulation of ultra-shortwave signals through a BeiDou antenna, a BeiDou module, a control module, an analog signal generation module, an ultra-shortwave transmitting antenna, and a control computer, enabling the simulation of network communication between multiple ultra-shortwave simulation devices; it adopts a time synchronization method based on BeiDou time synchronization and second pulse, achieving millisecond-level time synchronization accuracy, ensuring that the time slot synchronization of network communication can reach the millisecond level.

[0167] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take 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 code. The solutions in the embodiments of this application can be implemented in various computer languages, such as the object-oriented programming language Java and the interpreted scripting language JavaScript.

[0168] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0169] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0170] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0171] These are preferred embodiments; however, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0172] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0173] Please note that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. The above embodiments only illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A simulation system for UHF signal networking based on time synchronization, characterized in that, The system includes: a control module, an analog signal generation module, a BeiDou module, a control computer, a BeiDou antenna, and an ultra-shortwave transmitting antenna; wherein: The BeiDou antenna is connected to the BeiDou module via an RF cable; the BeiDou module is connected to the control module via a data cable; the control module is connected to the analog signal generation module via the data cable; the analog signal generation module is connected to the VHF transmitting antenna via the RF cable; and the control module is connected to the control computer via a network cable. The BeiDou module is configured to receive BeiDou timing signals and determine a time synchronization reference via the BeiDou antenna. The analog signal generation module is configured to generate an ultra-shortwave radio frequency analog signal based on the time synchronization reference determined by the Beidou module and according to the preset signal parameters, under the condition that the system does not have an ultra-shortwave signal radio frequency receiving channel; The ultra-shortwave transmitting antenna is configured to transmit the ultra-shortwave radio frequency analog signal generated by the analog signal generation module into space. The BeiDou antenna is configured to receive BeiDou satellite navigation signals and transmit the received BeiDou satellite navigation signals to the BeiDou module via the radio frequency cable. The BeiDou module receives and parses the BeiDou satellite navigation signal, extracts the BeiDou timing signal from it, obtains UTC timing information and second pulse information, performs time synchronization with the BeiDou satellite navigation system based on the time synchronization reference, and transmits the UTC timing information and the second pulse information to the control module. The control module is configured to: receive control commands issued by the control computer; collect system status information based on the control commands; and feed back the system status information to the control computer; adjust the local clock according to the received UTC timing information and second pulse information; and perform millisecond-level time synchronization between the local clock and the BeiDou satellite navigation system; receive UHF radio frequency analog signal parameters issued by the control computer; and forward the UHF radio frequency analog signal parameters to the analog signal generation module. The analog signal generation module is configured to generate a corresponding UHF RF analog signal based on the UHF RF analog signal parameters sent by the control module. The UHF RF analog signal parameters include one or more of the following: frequency, power, duration, operating mode, service type, signal source, master / slave station, and frequency hopping parameters. The time slot for generating the UHF RF analog signal is determined by the locally maintained synchronized time, and the master station and the slave station occupy their respective time slots.

2. The time-synchronized ultra-shortwave signal networking simulation system according to claim 1, characterized in that: The ultra-shortwave transmitting antenna is configured to radiate signals in the 30-88MHz frequency band and transmit the ultra-shortwave radio frequency analog signal generated by the analog signal generation module into space.

3. A time synchronization-based super-short wave signal networking simulation method, characterized in that, The method is based on an ultra-shortwave signal networking simulation system to realize time-synchronized ultra-shortwave signal networking; wherein: The system includes: a control module, an analog signal generation module, a BeiDou module, a control computer, a BeiDou antenna, and an ultra-shortwave transmitting antenna; The BeiDou antenna is connected to the BeiDou module via an RF cable; the BeiDou module is connected to the control module via a data cable; the control module is connected to the analog signal generation module via the data cable; the analog signal generation module is connected to the VHF transmitting antenna via the RF cable; and the control module is connected to the control computer via a network cable. The method includes: The BeiDou module is invoked to receive BeiDou timing signals through the BeiDou antenna and determine the time synchronization reference. The analog signal generation module is invoked to generate an ultra-shortwave radio frequency analog signal based on the time synchronization reference determined by the Beidou module and according to the preset signal parameters, under the condition that the system does not have an ultra-shortwave signal radio frequency receiving channel. The ultra-shortwave transmitting antenna is invoked to transmit the ultra-shortwave radio frequency analog signal generated by the analog signal generation module into space; Specifically, the BeiDou antenna is invoked to receive BeiDou satellite navigation signals, and the received BeiDou satellite navigation signals are transmitted to the BeiDou module through the radio frequency cable; Specifically, the BeiDou module is invoked to receive and parse the BeiDou satellite navigation signal, extract the BeiDou timing signal from it, obtain UTC timing information and second pulse information, perform time synchronization with the BeiDou satellite navigation system based on the time synchronization reference, and transmit the UTC timing information and the second pulse information to the control module. Specifically, the control module is invoked to: receive control commands issued by the control computer; collect system status information based on the control commands; and feed back the system status information to the control computer; adjust the local clock according to the received UTC timing information and second pulse information; and perform millisecond-level time synchronization between the local clock and the BeiDou satellite navigation system; and receive UHF / UHF radio frequency analog signal parameters issued by the control computer and forward the UHF / UHF radio frequency analog signal parameters to the analog signal generation module. Specifically, the analog signal generation module is invoked to generate a corresponding UHF / RF analog signal based on the UHF / RF analog signal parameters sent by the control module. The UHF / RF analog signal parameters include one or more of the following: frequency, power, duration, operating mode, service type, signal source, master / slave station, and frequency hopping parameters. The time slot for generating the UHF / RF analog signal is determined by the locally maintained synchronized time, and the master station and the slave station occupy their respective time slots.

4. The method for simulating UHF signal networking based on time synchronization according to claim 3, characterized in that: The ultra-shortwave transmitting antenna is invoked to transmit the ultra-shortwave radio frequency analog signal generated by the analog signal generation module into space using signal radiation in the 30-88MHz frequency band.

5. An electronic device, characterized in that, The electronic device includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, it implements the steps in the time-synchronized ultra-shortwave signal networking simulation method according to any one of claims 3-4.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the time-synchronized ultra-shortwave signal networking simulation method according to any one of claims 3-4.

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