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An adaptive transmission method and device for anti-aiming jamming

An adaptive transmission and jammer technology, applied in transmission systems, electrical components, etc., can solve problems such as attacks, increase frame length, improve confrontation effects, and avoid interference threats.

Active Publication Date: 2022-02-01
中国人民解放军61035部队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of this, the present invention provides an adaptive transmission method and device for anti-targeted interference, the main purpose of which is to solve the problem in the prior art that the OFDM signal bandwidth and dwell time transmitted by users are usually fixed values, which are easy to be targeted by targeted interference. The jammer analyzes the user's working frequency band and attacks it

Method used

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  • An adaptive transmission method and device for anti-aiming jamming
  • An adaptive transmission method and device for anti-aiming jamming
  • An adaptive transmission method and device for anti-aiming jamming

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Embodiment 1

[0053] Please refer to figure 1 , which shows a schematic diagram of the principle of an adaptive transmission method against targeted jamming provided by an embodiment of the present invention.

[0054] Such as figure 1 As shown, the method of the embodiment of the present invention mainly includes the following steps:

[0055] S1 initializes the frequency hopping parameters and starts signal transmission;

[0056] Frequency hopping parameter initialization refers to setting the initial frame length T of the signal f1 , initial signal bandwidth B f1 , select the initial working frequency band [f L1 , f U1 ], preset frequency hopping random number seed S 1 . The parameters are quantified as follows:

[0057] T f1 =T H +N 1 × T S (1a)

[0058] Among them, T H is the initial frame header length, T S is the OFDM symbol length, N 1 is the number of OFDM symbols the initial frame contains.

[0059] B f1 = M 1 ×B SCRB (1b)

[0060] Among them, M 1 is the numb...

Embodiment 2

[0114] Further, another embodiment of the present invention provides an adaptive transmission device for resisting targeted interference as an implementation of the methods shown in the foregoing embodiments. This device embodiment corresponds to the foregoing method embodiment. For the convenience of reading, this device embodiment does not repeat the details in the foregoing method embodiment one by one, but it should be clear that the device in this embodiment can correspond to the foregoing method implementation. Everything in the example. image 3 A composition block diagram of an intelligent human-computer interaction device based on image-text matching provided by an embodiment of the present invention is shown. Such as image 3 As shown, in the device of this embodiment, there are following modules:

[0115] 1. Initialization module: Initialize frequency hopping parameters and start signal transmission. This module corresponds to step S1 in Embodiment 1.

[0116] 2...

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Abstract

The invention discloses an adaptive transmission method and device for resisting targeted interference, and belongs to the technical field of wireless communication. The method includes: proposing the concept of the minimum signal mode, when the jammer cannot interfere with the minimum signal mode, the working mode is set to the weak interference mode, and in the weak interference mode, the frame length and bandwidth are continuously adaptively adjusted; When it can interfere with the minimum signal mode, enter the electronic camouflage mode. At this time, the working mode is set to the strong interference mode. In the strong interference mode, the frame length and bandwidth are continuously adjusted adaptively. In this way, a constant balance is struck between avoiding the threat of interference and the efficiency of signal transmission. Under the premise of combating targeted interference, the signal transmission efficiency should be improved as much as possible. The method can adaptively adjust the user's working mode and adaptively adjust the frame length and bandwidth of the user's OFDM signal according to the intensity of the interference, can effectively resist targeted interference, and simultaneously improve the efficiency of signal transmission.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an adaptive transmission method and device for resisting targeted interference. Background technique [0002] As the electromagnetic spectrum becomes more and more scarce, wireless communication systems are extremely vulnerable to various interferences. In order to eliminate interference, civil wireless communication systems, such as the 4th generation mobile communication system (4G) and the 5th generation mobile communication system (5G), can investigate and deal with various conventional interference signals through the electromagnetic spectrum management agency. However, in some special scenarios, such as private network wireless communication systems, in addition to conventional interference, the system is also vulnerable to various malicious interference, including blocking interference, scanning interference, sparse spectrum interference, dense false target ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/715
CPCH04B1/715H04B2001/7152
Inventor 李敏王琰马莉萍张驭龙秦胜威段承放董飞鸿霍黎明尹增刚韩勇盛凌冯培文
Owner 中国人民解放军61035部队
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