Time-sharing networking communication method and device of missile-borne data link system

Abstract

The invention discloses a time-sharing networking communication method and device of a missile-borne data chain system, and belongs to the technical field of networking communication, and the method comprises the following steps: three antenna array planes of a master node and a slave node respectively send and receive synchronization and broadcast information in a polling mode; the slave node sends a network access request signaling to a sending array plane opposite to the receiving array plane, and establishes a wireless link with the master node based on the network access request signaling; and the master node and the slave node perform antenna array plane tracking according to the current attitude and position information, and perform antenna array plane switching according to the array plane signal intensity. The scheme can improve the data transmission efficiency and communication reliability of the master and slave nodes of the aircraft.

Description

Technical Field

[0001] The present invention relates to the field of networking communication technology, and in particular to a time-sharing networking communication method, device, computing equipment and storage medium for a missile-borne data link system. Background Art

[0002] The realization of various applications of UAVs, such as military reconnaissance, geographic mapping, and disaster relief, cannot be separated from the support of the data link system. The stability, security, and sensitivity of the communication quality of the missile-borne data link system are of great significance to UAVs. In order to reduce the manufacturing and management costs of UAVs, it is a feasible option to design the missile-borne data link system in a universal manner according to common requirements.

[0003] With the development of intelligent drones, communication protocols and frequency band selection, antenna design and optimization, power control strategies, etc. are the key to ensuring the quality and stability of drone communications. Therefore, drone communications need to have the ability to be quickly deployed, have a large coverage area, reduce costs, and support multi-task collaboration. Since drone communications usually require high bandwidth to support data-intensive tasks such as real-time video streaming, existing antenna arrays are limited in bandwidth, affecting data transmission speed and efficiency. When drone swarms are performing tasks, it is difficult for antenna arrays to dynamically adjust to adapt to changes in flight formations and mission requirements. Efficient antenna array communication systems often require high design costs and complexity. Summary of the invention

[0004] In order to solve the problems existing in the above-mentioned prior art, the present invention proposes a time-sharing networking communication method, device, computing equipment and storage medium for a missile-borne data link system. Multiple antenna arrays of the master node simultaneously send communication information in the synchronous time slot, and multiple antenna arrays of the slave node search for communication information in a time-sharing manner, which can improve the data transmission speed and efficiency of the master and slave nodes, and spatially suppress interference signals and switch antenna arrays during the wireless link establishment process, which can improve the signal transmission quality.

[0005] According to a first aspect of the present invention, a time-sharing networking communication method for a missile-borne data link system is provided, wherein the missile-borne data link system includes a master node and a slave node, and each of the master node and the slave node includes three antenna array surfaces. The method includes: The three antenna arrays of the master node and the slave node send and receive synchronization and broadcast information respectively through polling; the slave node sends a network access request signal to the transmitting array opposite to the receiving array, and establishes a wireless link with the master node based on the network access request signal; the master node and the slave node track the antenna array according to the current posture and position information, and switch the antenna array according to the array signal strength.

[0006] In the above technical solution, the master and slave nodes can ensure that the slave nodes establish a stable communication connection with the network in a timely manner through polling and time-sharing directional search. At the same time, the posture and position information are used to track and switch the antenna array, which can dynamically optimize the signal reception efficiency and coverage range, thereby improving the reliability of the system.

[0007] Optionally, in the time-sharing networking communication method of the missile-borne data link system provided by the present invention, the three antenna arrays of the master node send synchronization and broadcast information in sequence in preset synchronization time slots; the three antenna arrays of the slave node search for the synchronization and broadcast information of the master node in pre-allocated unicast directional time slots; after receiving the information from the antenna array of the master node, the receiving array of the slave node feeds back the information of successful reception to the master node; the master node determines the sending array according to the time of successful reception fed back by the slave node.

[0008] According to the above technical solution, by using the three antenna arrays of the master node to send synchronization and broadcast information in sequence in the preset synchronization time slot, and the slave node searches for this information in the designated unicast directional time slot, the spectrum usage can be effectively managed and optimized, and the signal reception quality can be improved.

[0009] Optionally, in the time-sharing networking communication method of the missile-borne data link system provided by the present invention, after receiving the synchronization and broadcast information, the slave node sends a network access request signaling in a direction to the transmitting array opposite to the receiving array in a pre-allocated time slot; the master node listens to the network access request of the slave node in the downlink time slot, demodulates the detected network access request signaling, and sends a network access success signaling to the slave node after the demodulation is correct; if the slave node does not receive a signaling from the master node allowing or refusing network access, it continues to send a network access request signaling to the master node.

[0010] According to the above technical solution, a network access request is sent directionally from the node to the transmitting array opposite to the receiving array, which means that the signal transmission is highly directional, reducing signal leakage and interference and improving the security and efficiency of transmission.

[0011] Optionally, in the time-sharing networking communication method of the missile-borne data link system provided by the present invention, the master node calculates the incident direction of the interference signal by measuring the phase and amplitude differences of the signal reaching each antenna during the process of listening to the idle time slot; based on the phase information of the interference signal, a power suppression algorithm is used to suppress the power of the interference signal; and during the time slot process of establishing a wireless link with the slave node, the master node uses an adaptive spatial filtering algorithm to suppress the power of the interference signal.

[0012] According to the above technical solution, by effectively managing and controlling interference, not only the quality of a single communication link is improved, but also the robustness of the entire network system is enhanced, which can resist external signal interference and ensure the stability of the overall operation of the network.

[0013] Optionally, in the time-sharing networking communication method of the missile-borne data link system provided by the present invention, the master node and the slave node obtain their own position and attitude information based on their respective attitude sensors and positioning systems; calculate and adjust the optimal direction of the antenna array according to the node's position and attitude information, and determine the sending array and the receiving array; when the master node loses the slave node, it re-listens to the network access request signaling, and triggers the antenna array switching according to the signal strength of the three antenna arrays; the slave node switches the antenna array by comparing the receiving signal strength of the three antenna arrays during the inter-cluster broadcast time slot.

[0014] According to the above technical solution, the optimal direction of the antenna is calculated using the position and posture information of each node, which can significantly improve the signal's directivity and focusing ability. During the communication process, the antenna array can be dynamically switched according to the signal strength and network status, so that the system can adapt to environmental changes and node movement more flexibly, enhancing the system's adaptive ability and network coverage.

[0015] Optionally, in the time-sharing networking communication method of the missile-borne data link system provided by the present invention, the master node reserves a time slot in the time frame, and sends a detection signal from the node through time division multiple access or code division multiple access in the time slot; the master node uses other array polling methods to listen to the detection signal, and when the listening signal strength is higher than the current communication array, the master node is triggered to switch the receiving array to the array with the highest signal strength.

[0016] According to the above technical solution, the slave node can send the detection signal in the reserved time slot, which enables new nodes or mobile nodes to flexibly access the existing network without being restricted by the fixed network configuration, thus enhancing the dynamic access capability of the network. By dynamically selecting the antenna array with the strongest signal, it can ensure good signal coverage even at long distances or in obstructed environments.

[0017] Optionally, in the time-sharing networking communication method of the missile-borne data link system provided by the present invention, the missile-borne data link system is a hierarchical and clustered centralized network, including an intra-cluster network and an inter-cluster network. The intra-cluster network uses multiple groups of mutually orthogonal frequency hopping sequences to run simultaneously in the same time slice resources, and the frequency hopping sequence of the inter-cluster network adopts the frequency hopping sequence used by the node that becomes the cluster head of the inter-cluster network in the intra-cluster network.

[0018] According to a second aspect of the present invention, a time-sharing networking communication device for a missile-borne data link system is provided, comprising a polling module, a wireless link establishment module and a front tracking module. Among them, the polling module is used to enable the three antenna arrays of the master node and the slave node to send and receive synchronization and broadcast information respectively through polling; the wireless link establishment module is used to enable the slave node to send a network access request signaling to the sending array opposite to the receiving array, and establish a wireless link with the master node based on the network access request signaling; the array tracking module is used to enable the master node and the slave node to track the antenna array according to the current posture and position information, and switch the antenna array according to the array signal strength.

[0019] According to a third aspect of the present invention, a computing module is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the time-sharing networking communication method of the missile-borne data link system as in the first aspect.

[0020] According to a fourth aspect of the present invention, there is provided a computer-readable storage medium, comprising a computer program that can be loaded by a processor and execute a time-sharing networking communication method for a missile-borne data link system as in the first aspect.

[0021] In summary, the time-sharing networking communication method of the missile-borne data link system provided by the present invention can at least achieve the following technical effects: 1. This solution can provide efficient user equipment access services in a multi-user and multi-channel environment. Through time allocation and scheduling, it can maximize the utilization efficiency of system resources and reduce signal conflicts and interference; 2. Through effective management and dynamic adjustment of antenna arrays, not only the communication efficiency and network stability are improved, but also the scalability and security of the network are enhanced, which is suitable for coping with various dynamic and complex communication environments.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A topological structure diagram of a missile-borne data link system according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the hierarchical structure of a missile-borne data link system according to an embodiment of the present invention is shown; Figure 3A schematic flow chart of a time-sharing networking communication method 300 for a missile-borne data link system according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of a multi-antenna array master-slave node according to an embodiment of the present invention is shown; Figure 5 A block diagram of a computing device 100 according to an embodiment of the present invention is shown; Figure 6 A schematic structural diagram of a time-sharing networking communication device 600 of a missile-borne data link system according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0024] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0025] As more and more users are connected to the network, the data link antenna can be arranged in a triangle using a phased antenna array, with each array covering a 120° viewing angle. Each antenna array has 4 antennas, and an aircraft will have 12 antennas. In theory, each antenna requires an independent receiving channel.

[0026] In order to reduce hardware costs and power consumption, time-division multiplexing can be used to share the transmission channel and the receiving channel. That is, the communication channel is divided into multiple time slots and allocated to different nodes in the network, allowing multiple users or devices to use the same communication channel at the same frequency but at different times.

[0027] This scheme relies on the hierarchical clustered missile-borne data link system architecture, and uses frequency division multiple access and time division multiple access to allocate different transmission resources to each cluster. The missile-borne data link system constructed is a hierarchical clustered central network, including intra-cluster network and inter-cluster network. The intra-cluster network uses multiple sets of mutually orthogonal frequency hopping sequences to run simultaneously in the same time slice resources, and the frequency hopping sequence of the inter-cluster network adopts the frequency hopping sequence used by the node that becomes the cluster head of the inter-cluster network in the intra-cluster network.

[0028] Figure 1 FIG. 2 shows a topological structure diagram of a missile-borne data link system according to an embodiment of the present invention. Figure 1 As shown, the entire communication network is divided into an intra-cluster network and an inter-cluster network, and the inter-cluster network is composed of cluster heads of the intra-cluster network.

[0029] Each intra-cluster network contains n nodes, namely, a cluster head node and (n-1) intra-cluster nodes. The cluster head node serves as the central node of the subnet, manages network timing and cluster members, and generates candidate cluster head nodes sorted by priority according to the cluster head generation algorithm.

[0030] The inter-cluster network consists of a subnet composed of N cluster head nodes of the intra-cluster network. Similarly, it includes a cluster head node and (N-1) intra-cluster nodes. The cluster head node manages the network and cluster members, and generates candidate cluster head nodes sorted by priority according to the cluster head generation algorithm.

[0031] Figure 1 The topology of the missile-borne data link system shown is based on the network connection relationship established by the application. The specific resource allocation is not only related to the network topology, but also to the network layering. Figure 2 FIG. 2 shows a schematic diagram of a hierarchical structure of a missile-borne data link system according to an embodiment of the present invention. Figure 2 As shown in the figure, the entire network is divided into a layer 1 network and a layer 2 network, which contains multiple independent subnets in terms of physical connection. Network communication is completed through unified resource scheduling and dynamic allocation, which can provide flexible physical network support for collaborative operations.

[0032] like Figure 2 As shown in the figure, the first-layer network includes multiple independent intra-cluster networks, which use multiple sets of mutually orthogonal frequency hopping sequences to run simultaneously in the same time slice resources. The second-layer network is an inter-cluster network composed of cluster heads in the first-layer network through pre-designation or cluster head generation algorithm. The frequency hopping sequence of the second-layer network adopts the frequency hopping sequence used by the cluster head of the inter-cluster network in the first-layer network. The second-layer network and the first-layer network use different time slice resources to run. Table 1 is the network communication time slot allocation table under the multi-antenna array.

[0033] Table 1: Time slot allocation table for Layer 2 network communication under multi-antenna array As shown in Table 1, the total number of nodes K in the entire network is 96, K = N*n. If the number of nodes n in a cluster is 4, the number of inter-cluster networks N is 24. If the number of nodes in a cluster is 8, the number of inter-cluster networks is 12.

[0034] The number of antenna arrays is 3, one superframe contains 4 time frames, each time frame contains 50 time slots, one time slot is 5 ms, then one time frame is 250 ms, and one superframe is 1 s.

[0035] Each array sends an intra-cluster broadcast once in a time frame, so the first-layer network sends intra-cluster broadcasts 12 times in 1s. Each array sends an inter-cluster broadcast once in a time frame, so the second-layer network sends inter-cluster broadcasts 12 times in 1s. The synchronous broadcast time slot is sent with the time frame length as the period, that is, it is sent once every 250ms. It takes 750ms for all three arrays to send once. It also takes 750ms for the slave node to search for arrays three times, which meets the indicator requirement of 1s delay access to the network.

[0036] The ratio of the master and slave nodes' sending and receiving time slots is 1:1, and the interval between two data exchanges between the master and slave nodes is the data exchange period. In one superframe period, the intra-cluster network allocates one scheduling opportunity to each slave node, which occupies 2 time slots to complete one data exchange between the master and slave nodes, and occupies the intra-cluster unicast time slot. There are 3 slave nodes in the intra-cluster network, and the uplink and downlink data exchanges occupy a total of 3*2=6 time slots. Each user has a fixed time slot. The inter-cluster network allocates one scheduling opportunity between each second-layer cluster head and first-layer cluster head, which occupies 2 time slots to complete one data exchange between cluster heads, and occupies the inter-cluster unicast time slot. There are 23 slave nodes in the inter-cluster network, and the uplink and downlink data exchanges occupy a total of 23*2=46 time slots, and each inter-cluster communication has a fixed time slot.

[0037] The intra-cluster and inter-cluster broadcast time slots and the one-time unicast time slot in the superframe are used as static time slots, so the total number of fixed static time slots is 12+12+6+46=76. The remaining time slots in the superframe are used as dynamic time slots, where each superframe reserves 2 time slots as the detection channel between the master and slave nodes for antenna array detection, so the number of dynamic time slots is 200-76-2=122.

[0038] Time-sharing networking can optimize resource usage through time allocation. In missile-borne data link systems, reasonable arrangement of communication time slots can reduce signal conflicts and interference. For example, in order to meet the requirements of low latency or large data volume in specific scenarios, dynamic time slots can be allocated to specific nodes in a cluster or communication between cluster heads.

[0039] Figure 3 FIG. 3 is a flow chart showing a time-sharing networking communication method 300 for a missile-borne data link system according to an embodiment of the present invention. Figure 3 As shown, in step S310, the three antenna arrays of the master node and the slave node respectively send and receive synchronization and broadcast information by polling.

[0040] In a multi-antenna system, the three antenna arrays of the master node send synchronization and broadcast information in sequence at preset synchronization time slots. This information not only contains time synchronization signals, but also network configuration and control instructions, so that the slave nodes can be correctly configured and synchronized with the rest of the network.

[0041] By sending signals on different antenna arrays, the master node can take advantage of the multipath propagation effect to enhance signal coverage and reception reliability. The three antenna arrays of the slave node search for synchronization and broadcast information of the master node in the pre-assigned unicast directional time slots. By receiving signals on different antenna arrays, the slave node can use spatial diversity to suppress interference signals from other sources.

[0042] After receiving the information of the master node antenna array, the slave node receiving array feeds back the successful reception information to the master node. The master node determines the sending array according to the time when the slave node successfully receives the information.

[0043] Figure 4 FIG. 2 shows a schematic diagram of a master-slave node of a multi-antenna array according to an embodiment of the present invention. Figure 4 As shown, each array (1, 2, 3) of the master node sends a synchronization signal, broadcast information, control channel information, etc. once, and the slave node attempts to receive these signals through its three arrays (a, b, c). For example, array a receives 3 times. If it is not received 3 times, the master node arrays 1, 2, and 3 send again, and the slave node array b receives 3 times. This time, the slave node array b can receive the communication information of the master node array 1. After receiving the information, the slave node array b sends a confirmation signal to the master node to inform the master node that it has successfully received the signal from the master node. The master node determines which array sent the signal and successfully received it based on the time and order of the slave node receiving the confirmation.

[0044] Since the master node polls and sends on 3 arrays, and the slave node polls and receives on 3 arrays, theoretically, the transmitting and receiving arrays can be determined by sending at most 9 times. Since 4 transmissions are made within a superframe (1s), the 3 arrays are sent 12 times in a superframe, so the receiving array can be determined within 1s. Once the best combination of transmitting and receiving arrays is confirmed, that is, array 1 of the master node and array b of the slave node in this example, subsequent communications will mainly be directional communications through these selected arrays to ensure communication efficiency and quality.

[0045] Then in step S320, the slave node sends a network access request signaling to the transmission front opposite to the receiving front, and establishes a wireless link with the master node based on the network access request signaling.

[0046] Specifically, after receiving the synchronization and broadcast information, the slave node sends a network access request signaling in a direction to the transmitting array opposite to the receiving array in a pre-assigned time slot; the master node listens to the network access request of the slave node in the downlink time slot, demodulates the detected network access request signaling, and sends a network access success signaling to the slave node after the demodulation is correct; if the slave node does not receive a signaling from the master node allowing or rejecting network access, it continues to send a network access request signaling to the master node.

[0047] During the idle time slot, the master node records the vector direction and measurement results of the interference signals of the three antenna arrays. The historical array interference measurement results can be used to spatially suppress the known interference signals. By adjusting the direction of the antenna array or using other signal processing technologies, the master node can minimize or eliminate the impact of the known interference signals on the communication, thereby improving the quality and reliability of the communication.

[0048] For example, when the master node listens to the idle time slot, it calculates the incident direction of the interference signal by measuring the phase and amplitude differences of the signal reaching each antenna; based on the phase information of the interference signal, it uses the power suppression algorithm (PI algorithm) to suppress the power of the interference signal; during the time slot of establishing a wireless link with the slave node, the master node uses an adaptive spatial filtering algorithm (LCMV or SMI algorithm) to suppress the power of the interference signal.

[0049] Among them, the LCMV algorithm minimizes the power of the interference signal in the expected direction and maximizes the receiving gain of the main signal by weighted combination of the signals received by each antenna. The SMI algorithm calculates the inverse matrix of the covariance matrix of the received signal to determine the weighting coefficient of each antenna to minimize the impact of the interference signal and maximize the receiving gain of the signal.

[0050] By using historical array interference measurement results for spatial suppression, the master node can more effectively identify and combat known interference signals during downlink time slot listening, reducing the impact of interference on communication signals.

[0051] Finally, in step S330, the master node and the slave node track the antenna array according to the current posture and position information, and switch the antenna array according to the array signal strength.

[0052] The slave node can switch the antenna array in the inter-cluster broadcast time slot, measure the received signals of the other two arrays, and assist the slave node to complete the antenna array switching. After the master node loses the slave node, it re-initiates the listening process and reserves a time slot in the time frame. All master and slave nodes send detection signals in time division multiple access or code division multiple access in this time slot. The master node uses the other two array antennas for polling listening. When the listening signal strength is higher than the main communication array, it triggers the master node to switch the receiving array to the antenna array with the highest signal strength.

[0053] Specifically, the master and slave nodes can obtain the current attitude and position information through their respective attitude sensors (such as accelerometers, gyroscopes) and positioning systems, calculate the relative direction of the master and slave nodes, and adjust the direction of the antenna array to maximize the signal reception quality. By continuously monitoring the attitude and position of the master and slave nodes, the system can dynamically adjust the direction of the antenna to adapt to environmental changes and mobile conditions, and maintain the optimal state of the communication link.

[0054] The slave node not only transmits data during the inter-cluster broadcast time slot, but also detects the signal strength of other antenna arrays. When it detects that the signal strength of other antenna arrays is higher than the signal strength of the current antenna array, it switches the antenna array to the antenna array with the best signal strength. The master node can design a specific time slot and let all slave nodes send detection signals through time division multiple access or code division multiple access in this time slot. The master node polls other antenna arrays to listen to these detection signals. When the detected signal strength is higher than the signal strength of the current antenna array, it triggers the switching of the receiving array. This array switching mechanism ensures that the communication link can quickly adapt and maintain high efficiency when the slave node moves or the environmental conditions change.

[0055] Therefore, this solution not only improves the flexibility and adaptability of the communication system, but also greatly improves the reliability of communication through precise dynamic adjustment.

[0056] Figure 5 FIG. 1 shows a block diagram of a computing device 100 according to an embodiment of the present invention. Figure 5 As shown, computing device 100 may include memory 106 and processor 104. Memory bus 108 may be used for communication between processor 104 and system memory 106.

[0057] Memory 106 may include operating system 120, applications 122, and program data 124. Applications 122 may be arranged to be executed on the operating system by one or more processors 104 using program data 124. Applications 122 include program instructions for implementing various user desired functions.

[0058] When the computing device 100 starts running, the processor 104 reads and executes the program instructions of the operating system 120 from the memory 106. The application 122 runs on the operating system 120 and uses the interfaces provided by the operating system 120 and the underlying hardware to implement various functions desired by the user. When the user starts the application 122, the application 122 is loaded into the memory 106, and the processor 104 reads and executes the program instructions of the application 122 from the memory 106.

[0059] The computing device 100 also includes a storage device 132 and an output device 142 connected to a storage interface bus 134. An interface bus 140 facilitates communication from various interface devices (e.g., output device 142, peripheral interface 144, and communication device 146) via the bus / interface controller 130.

[0060] The peripheral interface 144 may include a serial interface controller 154 and a parallel interface controller 156, which may be configured to facilitate communication with external devices such as input devices (e.g., keyboards, mice, pens, voice input devices, touch input devices) or other peripherals (e.g., printers, scanners, etc.) via one or more I / O ports 158. The communication device 146 may include a network controller 160, which may be arranged to facilitate communication with one or more other computing devices 162 via a network communication link via one or more communication ports 164. In the computing device 100 according to the present invention, the application 122 includes instructions for executing the time-sharing networking communication method 400 of the missile-borne data link system of the present invention.

[0061] Figure 6 FIG. 6 is a schematic diagram showing the structure of a time-sharing networking communication device 600 of a missile-borne data link system according to an embodiment of the present invention. Figure 6 As shown, the device 600 may include a polling module 610 , a wireless link establishing module 620 and a front tracking module 630 .

[0062] The polling module 610 is used to enable the three antenna arrays of the master node and the slave node to send and receive synchronization and broadcast information respectively by polling. The polling module can ensure that all nodes can receive the latest network status and instructions regularly to avoid signal conflicts and overlaps.

[0063] The wireless link establishment module 620 can enable the slave node to send a network access request signaling to the transmission array opposite to the receiving array, and establish a wireless link with the master node based on the network access request signaling. By determining the optimal transmission array, the stability of the wireless link can be improved, and it can dynamically adapt to network changes to ensure that a stable connection can be maintained when the node moves or the network conditions change.

[0064] The array tracking module 630 enables the master node and the slave node to track the antenna array according to the current posture and position information, and to switch the antenna array according to the array signal strength.

[0065] The polling module 610, the wireless link establishment module 620 and the array tracking module 630 together create a flexible and adaptive network environment that can support high-mobility application scenarios, such as drone swarms, and provide continuous and reliable communication support.

[0066] The time-sharing networking communication method and device of the missile-borne data link system provided by the present invention can provide efficient user equipment access services in a multi-user multi-channel environment, and can maximize the utilization efficiency of system resources and reduce signal conflicts and interference through time allocation and scheduling. Through effective management and dynamic adjustment of the antenna array, not only the communication efficiency and network stability are improved, but also the scalability and security of the network are enhanced, which is suitable for coping with various dynamic and complex communication environments.

[0067] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0068] As used herein, unless otherwise specified, the use of ordinal numbers "first," "second," "third," etc. to describe common objects merely indicates that different instances of similar objects are involved, and is not intended to imply that the objects so described must have a given order in time, space, order, or in any other manner.

Claims

1. A time-sharing networking communication method for a missile-borne data link system, wherein the missile-borne data link system comprises a master node and a slave node, wherein each of the master node and the slave node comprises three antenna arrays, wherein: The method comprises: The three antenna arrays of the master node and the slave node send and receive synchronization and broadcast information respectively by polling; The slave node sends a network access request signaling to a transmission array opposite to the receiving array, and establishes a wireless link with the master node based on the network access request signaling; The master node and the slave node track the antenna array according to the current posture and position information, and switch the antenna array according to the array signal strength.

2. The time-sharing networking communication method of the missile-borne data link system according to claim 1 is characterized in that: The steps of sending and receiving synchronization and broadcast information by polling the three antenna arrays of the master node and the slave node include: The three antenna arrays of the master node send synchronization and broadcast information in sequence in the preset synchronization time slots; The three antenna arrays of the slave node search for the synchronization and broadcast information of the master node in the pre-assigned unicast directional time slots; After receiving the information from the antenna array of the master node, the receiving array of the slave node feeds back the successful reception information to the master node; The master node determines the sending front according to the time when the slave node feedbacks the successful reception information.

3. The time-sharing networking communication method of the missile-borne data link system according to claim 1 is characterized in that: The steps of the slave node sending a network access request signaling to a transmission array opposite to a receiving array, and establishing a wireless link with the master node based on the network access request signaling include: After receiving the synchronization and broadcast information, the slave node sends a network access request signaling in a pre-assigned time slot to the transmitting array opposite to the receiving array; The master node listens to the network access request of the slave node in the downlink time slot, demodulates the intercepted network access request signaling, and sends a network access success signaling to the slave node after the demodulation is correct; If the slave node does not receive a signaling from the master node that allows or denies network access, it continues to send a network access request signaling to the master node.

4. The time-sharing networking communication method of the missile-borne data link system according to claim 3 is characterized in that: The master node intercepts the network access request of the slave node in the downlink time slot, demodulates the intercepted network access request signaling, and sends a signaling of successful network access to the slave node after the demodulation is correct, including: When the master node listens to the idle time slot, it calculates the incident direction of the interference signal by measuring the phase and amplitude differences of the signal reaching each antenna; Based on the phase information of the interference signal, a power suppression algorithm is used to suppress the power of the interference signal; During the time slot of establishing a wireless link with the slave node, the master node uses an adaptive spatial filtering algorithm to suppress the power of the interference signal.

5. The time-sharing networking communication method of the missile-borne data link system according to claim 1 is characterized in that: The master node and the slave node track the antenna array according to the current posture and position information, and switch the antenna array according to the array signal strength, including: The master node and slave node obtain their own position and attitude information based on their respective attitude sensors and positioning systems; Calculate and adjust the optimal direction of the antenna array according to the node's position and attitude information, and determine the transmitting array and receiving array; When the master node loses the slave node, it listens to the network access request signaling again and triggers the antenna array switching according to the signal strength of the three antenna arrays; The slave node switches the antenna array by comparing the received signal strengths of the three antenna arrays during the inter-cluster broadcast time slot.

6. The time-sharing networking communication method of the missile-borne data link system according to claim 5 is characterized in that: When the master node loses the slave node, the steps of re-listening to the network access request signaling and triggering antenna array switching according to the signal strength of the three antenna arrays include: The master node reserves a time slot in the time frame, and the slave node sends a detection signal via time division multiple access or code division multiple access in the time slot; The master node uses other arrays to poll the detection signal. When the listening signal strength is higher than the current communication array, the master node is triggered to switch the receiving array to the array with the highest signal strength.

7. The time-sharing networking communication method of the missile-borne data link system according to claim 1 is characterized in that: The missile-borne data link system is a hierarchical and clustered centralized network, including an intra-cluster network and an inter-cluster network. The intra-cluster network uses multiple sets of mutually orthogonal frequency hopping sequences to run simultaneously in the same time slice resources, and the frequency hopping sequence of the inter-cluster network adopts the frequency hopping sequence used by the node that becomes the cluster head of the inter-cluster network in the intra-cluster network.

8. A time-sharing networking communication device for a missile-borne data link system, characterized in that: It includes polling module, wireless link establishment module and array tracking module. The polling module is used to enable the three antenna arrays of the master node and the slave node to send and receive synchronization and broadcast information respectively by polling; The wireless link establishment module is used to enable the slave node to send a network access request signaling to the sending array opposite to the receiving array, and establish a wireless link with the master node based on the network access request signaling; The array surface tracking module is used to enable the master node and the slave node to track the antenna array surface according to the current posture and position information, and to switch the antenna array surface according to the array surface signal strength.

9. A computing device comprising: at least one processor; and A memory storing program instructions, wherein the program instructions are configured to be suitable for execution by the at least one processor, and the program instructions include instructions for executing the time-sharing networking communication method of the missile-borne data link system as described in any one of claims 1-7.

10. A readable storage medium storing program instructions, when the program instructions are read and executed by a computing device, the computing device executes the time-sharing networking communication method of the missile-borne data link system as described in any one of claims 1-7.

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