这是一个CNN和变压器的组合网络,用于干扰识别
Hu Zhang1, Meng Zhao1, Min Zhang1
1School of Aerospace Science and Technology, Xidian University, Xi'an, China.
Frontiers in computational neuroscience
|December 21, 2023
概括
这项研究引入了一种新的深度学习网络,用于识别通信干扰,增强电子战能力. 新方法有效地结合了本地和全球信号特征,比现有技术提高了识别精度.
科学领域:
- 电子战争和信号处理
- 对于通信系统的深度学习
背景情况:
- 准确的通信干扰识别对于有效的电子对策至关重要.
- 现有的深度学习方法,如CNN和变压器,往往无法整合本地和全球信号特征.
- 在1D信号数据中区分上下文语义对当前的方法来说是一个重大挑战.
研究的目的:
- 开发一个新的深度学习网络,有效地利用本地和全球信号特征来识别干扰.
- 提高电子战场景中通信干扰的识别精度.
- 解决处理1D信号数据和捕获时间频率特征的现有方法的局限性.
主要方法:
- 一种新的网络架构,将卷积神经网络 (CNN) 结合起来,用于局部特征提取和基于变压器的注意力机制,用于全球环境.
- 使用CNN而不是传统的词嵌入,以更好地捕捉1D信号数据的内在特征.
- 整合交叉注意力机制以融合时间和光谱域信息,消除需要单独的时间频率分析.
主要成果:
- 拟议的网络显著提高了本地和全球信号特征的利用.
- 实验结果显示,与现有最先进的方法相比,识别准确度得到了显著提高.
- 集成的交叉注意力机制有效地捕获了必要的时间频率信号属性.
结论:
- 新的混合CNN-变压器网络为通信干扰识别提供了一种卓越的方法.
- 该方法通过提高信号识别精度,在电子战应用中表现出高效率.
- 这种方法为分析复杂的信号数据提供了更强大,更完整的解决方案.
相关概念视频
01:27Transformers in Distribution System
103
Transformers in distribution systems can be broadly categorized into distribution substation transformers and other distribution transformers. They are crucial for stepping down high transmission voltages to levels suitable for distribution and end-user applications.
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
Distribution substation transformers come in various ratings and typically use mineral oil for insulation and cooling. To prevent moisture and air from entering the oil, some transformers use an inert gas like nitrogen to fill the...
103
01:16Types Of Transformers
979
Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
979
01:28Equivalent Circuits for Practical Transformers
436
The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
In a practical transformer, each winding exhibits resistance and leakage reactance. The...
In a practical transformer, each winding exhibits resistance and leakage reactance. The...
436
01:26The Ideal Transformer
398
In single-phase two-winding transformers, two windings are coiled around a magnetic core characterized by cross-sectional area A and magnetic permeability μ. A phasor current i1 enters the left winding while i2 exits the right winding, establishing the fundamental working of the transformer through electromagnetic principles.
Ampere's Law forms the basis of understanding the magnetic field within the transformer. It states that the integral of the magnetic field intensity's...
Ampere's Law forms the basis of understanding the magnetic field within the transformer. It states that the integral of the magnetic field intensity's...
398
01:25Network Function of a Circuit
290
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
290
01:26Transformers
1.1K
A device that transforms voltages from one value to another using induction is called a transformer. A transformer consists of two separate coils, or windings, wrapped around the same soft iron core. However, they are electrically insulated from each other.
The iron core has a substantial relative permeability. Therefore, the magnetic field lines generated due to the current in one winding are almost entirely confined within the core, such that the same magnetic flux permeates each turn of both...
The iron core has a substantial relative permeability. Therefore, the magnetic field lines generated due to the current in one winding are almost entirely confined within the core, such that the same magnetic flux permeates each turn of both...
1.1K