High-concealment mobile platform wireless communication method

Abstract

The invention discloses a high-concealment mobile platform wireless communication method, which comprises the following steps that: S1, a mobile platform judges whether the mobile platform is a master node or a slave node, then the master node starts slow beam scanning, and the slave node starts fast beam scanning; when the main node scans, a signal is transmitted; when the slave node scans, signal access is realized; and S2, the master node and the slave node respectively maintain the corresponding optimal power gears, and meanwhile, the beam pointing is solved in real time according to the transmission position of the wireless signal, so that signal tracking is realized. The directional narrow beam can realize signal transmission in a small space as much as possible, power adjustment can shorten an invalid communication distance on the premise of ensuring communication quality, and covert communication can be realized between mobile platforms with unknown positions; according to the method, on the basis of directional narrow beam fast and slow beam scanning, power adjustment is added, and transmission coverage of wireless signals is effectively controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of wireless communication and relates to a highly concealed mobile platform wireless communication method. Background Art

[0002] With the widespread application of wireless communication, information security issues have gradually attracted people's attention. Therefore, covert communication, also known as low detection probability communication, can achieve secure information transmission between the two communicating parties and prevent communication signals from being maliciously intercepted.

[0003] Omnidirectional beam can achieve 360-degree full-range signal transmission, which is not conducive to signal concealment. Directional narrow beam can achieve signal transmission in the smallest possible space, and power regulation can reduce the invalid communication distance while ensuring communication quality. The present invention combines the two methods and innovatively proposes a highly concealed mobile platform wireless communication method. Summary of the invention

[0004] (I) Purpose of the invention

[0005] The purpose of the present invention is to improve the concealment of signal transmission of wireless communication equipment installed on mobile platforms such as drones, airships, and cars, and to provide a highly concealed mobile platform wireless communication method that can control the wireless signal within the smallest possible effective range.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention provides a highly concealed mobile platform wireless communication method of this embodiment, which is implemented by a narrow beam wireless communication device installed on platforms such as drones, airships, and cars.

[0008] The highly concealed mobile platform wireless communication method of this embodiment includes the following steps:

[0009] In the first step, after power-on, the narrow-beam wireless communication device determines whether it is a master node or a slave node based on the pre-set parameters. Then the master node starts slow beam scanning and the slave node starts fast beam scanning.

[0010] In the second step, assume that the beam width is A and the master node beam switching time is t, then the switching time of the slave node is t1 = t / (360 / A), ensuring that the slave node can scan 360 degrees within the time t.

[0011] In the third step, the master node performs a slow horizontal scan of 0-360 degrees, with each beam staying for t, and transmits a signal.

[0012] The fourth step is to slowly scan the node horizontally from 0 to 360 degrees, with each beam dwelling time being t1, and receive signals until the signal is received to achieve signal access.

[0013] The fifth step is that after the signal is connected, the transmission power of the master node starts to decrease from the highest level until the signal can no longer be received, and then remains at the lowest power level of the master node that can receive the signal. The lowest power level of the master node is the optimal power level of the master node.

[0014] Step 6. After the master node is adjusted to the optimal power level of the master node, the transmission power of the slave node starts to decrease from the highest level until no signal is received, and is maintained at the lowest power level of the slave node that can receive the signal. The lowest power level of the slave node is the optimal power level of the slave node.

[0015] In the seventh step, the master node and the slave node respectively maintain the corresponding optimal power level, and calculate the beam pointing in real time according to the location of the wireless signal transmission to achieve signal tracking.

[0016] (III) Beneficial effects

[0017] The highly concealed mobile platform wireless communication method provided by the above technical solution has a directional narrow beam that can realize signal transmission in the smallest possible space, and power regulation can reduce the invalid communication distance while ensuring the communication quality, so that covert communication can be achieved between mobile platforms with unknown positions. This method adds power regulation on the basis of directional narrow beam fast and slow beam scanning to effectively control the transmission coverage of wireless signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of fast and slow beam scanning (taking beam width of 22.5 degrees as an example).

[0019] Figure 2 Schematic diagram of stepped power regulation. DETAILED DESCRIPTION

[0020] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0021] The highly concealed mobile platform wireless communication method of this embodiment is implemented by a narrow beam wireless communication device installed on platforms such as drones, airships, and cars.

[0022] The highly concealed mobile platform wireless communication method of this embodiment includes the following steps:

[0023] In the first step, after power-on, the narrow-beam wireless communication device determines whether it is a master node or a slave node based on the pre-set parameters. Then the master node starts slow beam scanning and the slave node starts fast beam scanning.

[0024] In the second step, assume that the beam width is A and the master node beam switching time is t, then the switching time of the slave node is t1 = t / (360 / A), ensuring that the slave node can scan 360 degrees within the time t.

[0025] In the third step, the master node performs a slow horizontal scan of 0-360 degrees, with each beam staying for t, and transmits a signal.

[0026] The fourth step is to slowly scan the node horizontally from 0 to 360 degrees, with each beam staying for t1, and receive signals until the signal is received to achieve signal access. Figure 1 shown.

[0027] Step 5: After the signal is connected, the transmission power of the master node starts to decrease from the highest level until the signal is no longer received, and then remains at the lowest level of the master node that can receive the signal. The lowest level of the master node is the best power level for the master node. Figure 2 shown.

[0028] Step 6. After the master node is adjusted to the optimal power level of the master node, the transmission power of the slave node starts to decrease from the highest level until no signal is received, and is maintained at the lowest power level of the slave node that can receive the signal. The lowest power level of the slave node is the optimal power level of the slave node.

[0029] In the seventh step, the master node and the slave node respectively maintain the corresponding optimal power level, and calculate the beam pointing in real time according to the location of the wireless signal transmission to achieve signal tracking.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A highly concealed mobile platform wireless communication method, characterized in that: The following steps are involved: S1, the mobile platform determines whether it is a master node or a slave node, then the master node starts slow beam scanning, and the slave node starts fast beam scanning; when the master node scans, it transmits signals; when the slave node scans, it realizes signal access; S2, after the signal is connected, the transmission power of the master node starts to decrease from the highest level until the signal can no longer be received, and remains at the lowest power level of the master node that can receive the signal, and the lowest power level of the master node is the optimal power level of the master node; after the master node is adjusted to the optimal power level of the master node, the transmission power of the slave node starts to decrease from the highest level until the signal can no longer be received, and remains at the lowest power level of the slave node that can receive the signal, and the lowest power level of the slave node is the optimal power level of the slave node; while the master node and the slave node respectively maintain the corresponding optimal power levels, the beam pointing is solved in real time according to the position of the wireless signal transmission to achieve signal tracking.

2. The highly concealed mobile platform wireless communication method according to claim 1, characterized in that: The mobile platform is realized by a narrow beam wireless communication device.

3. The highly concealed mobile platform wireless communication method as claimed in claim 2, characterized in that: Narrow beam wireless communication devices are installed on drones, airships, or cars.

4. The highly concealed mobile platform wireless communication method as claimed in claim 3, characterized in that: In step S1, after power-on, the narrow beam wireless communication device determines whether it is a master node or a slave node according to pre-set parameters.

5. The highly concealed mobile platform wireless communication method as claimed in claim 4, characterized in that: In step S1, the beam width is set to A and the master node beam switching time is set to t.

6. The highly concealed mobile platform wireless communication method as claimed in claim 5, characterized in that: In step S1, the switching time of the slave node is t1 = t / (360 / A), ensuring that the slave node can scan 360 degrees within the time t.

7. The highly concealed mobile platform wireless communication method according to claim 6, characterized in that: In step S1, the master node performs a slow horizontal scan of 0-360 degrees, with each beam staying for a time of t, and transmits a signal.

8. The highly concealed mobile platform wireless communication method as claimed in claim 7, characterized in that: In step S1, the slave node is slowly scanned horizontally from 0 to 360 degrees, each beam stays for t1, and receives signals until the signal is received to achieve signal access.

9. A highly concealed mobile platform wireless communication system, characterized in that: It includes a master node and a slave node. The master node transmits a signal and the slave node realizes signal access. After the signal is accessed, the transmission power of the master node decreases from the highest level until the signal cannot be received, and is maintained at the lowest power level of the master node that can receive the signal, and the lowest power level of the master node is the optimal power level of the master node. After the master node is adjusted to the optimal power level of the master node, the transmission power of the slave node decreases from the highest level until the signal cannot be received, and is maintained at the lowest power level of the slave node that can receive the signal, and the lowest power level of the slave node is the optimal power level of the slave node. While the master node and the slave node respectively maintain the corresponding optimal power levels, the beam pointing is solved in real time according to the position of the wireless signal transmission to realize signal tracking.

10. An application of a highly concealed mobile platform wireless communication method according to any one of claims 1 to 8 in the field of wireless communication technology.

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