基于改进深度残差网络算法的智能干扰识别

doi:10.11959/j.issn.1000-0801.2022233

Abstract

Abstract:

The labor cost of the current network operation and maintenance is high and the efficiency is low.How to quickly and accurately identify the type of network interference, and improve the work efficiency of the maintenance personnel has become an urgent problem to be solved.An intelligent interference identification method of improved deep residual network (ResNet) was studied.The interference data was collected and preprocessedby connecting with the communication interference data interface of the operator's northbound network management.The type of itwaslabelled and corrected by the current network experts to form an offline interference data set.Then the interference frequency domain information was used to generate the interference spectrum waveform image, and performed image processing and data processing for different interference types.After that, the traditional Res Net algorithm was improved according to the business characteristics to extract the features of single interference type.The features were weighted in the compound interference type to identify any type of interference.Finally, the interference data was identified online by importing the trained model, which effectively improved the accuracy and efficiency of interference identification.

Key words: 5G, interference identification, ResNet

CLC Number:

TN929.5

Jian MA, Guangjin ZHANG, Lei ZHANG, Jingwei DAI. Improved ResNet algorithm based intelligent interference identification[J]. Telecommunications Science, 2022, 38(10): 98-106.

Figures/Tables 8

类型	特征	干扰源	常见场所
LTE D频干扰	D1/D2 频段对应的底噪明显抬升，多为三段	LTE小区的上行终端	未完成 LTE 清频的区
	式或凹形		域
NR系统内干扰	随NR系统内上行资源分配波动	系统内上行负载高站点	重叠覆盖区域
无线网桥/视频监控干扰	宽带干扰，一个或多个直方凸起，中间一般	视频监控的无线网桥、无线回	楼宇、小区，如电
	有一个裂缝	传等设备	梯、停车场等
干扰器	全频段或大带宽底噪抬升且有些波动	干扰器产生的外部干扰	学校附近
路由器	呈现尖峰状，尖峰的底部稍宽，上头变窄，	路由器	楼宇、小区
	频域位置不固定
智能路灯干扰	左低右高，规律性波动干扰	智能路灯	城市、农村街道
伪基站干扰	干扰波形呈现规律的1.4 MHz /3 MHz /	伪基站	公安局附近
	5 MHz /10 MHz 等带宽的矩形波形
时钟源故障	前12个RB受较高的干扰，有的是前	常见于基站时钟源抖动/跳	随机出现
	35个RB	变、GPS故障等产生的上下行
		交叉时隙干扰
广电信号干扰	左边8 MHz一个方波	广电信号
电信800 MHz干扰	右边带杂散干扰特征	电信800 MHz
LTE D频干扰、NR系统	LTE D频干扰和NR系统内的复合干扰	系统内上行负载高站点LTE小	重叠覆盖区域未完成
内干扰		区的上行终端	LTE清频的区域
LTE D频干扰、干扰器	LTE D频干扰和干扰器叠加的复合干扰
NR系统内干扰、干扰器	NR系统内干扰和干扰器叠加的复合干扰
LTE D 频干扰、NR 系统	LTE D 频干扰、NR 系统内干扰、干扰器叠
内干扰、干扰器	加的复合干扰
LTE D频干扰、NR系统	LTE D频干扰、NR系统内干扰、无线网桥/
内干扰、无线网桥/视频	视频监控干扰叠加的复合干扰
监控干扰

References 21

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正确标签	是/个	否/个	总计/个	准确率
LTE D频干扰	14	1	15	93.3%
NR系统内干扰	232	16	248	93.5%
无线网桥/视频监控干扰	7	2	9	77.8%
干扰器	104	1	105	99.0%
路由器	1	0	1	100.0%
智能路灯干扰	12	1	13	92.3%
电信800 MHz干扰	3	0	3	100.0%
其他干扰	0	32	32	0
LTE D频干扰、NR系统内干扰	197	9	206	95.6%
LTE D频干扰、干扰器	2	0	2	100.0%
LTE D频干扰、其他干扰	0	1	1	0
NR系统内干扰、干扰器	15	0	15	100.0%
NR系统内干扰、路由器	23	2	25	92.0%
NR系统内干扰、电信800 MHz干扰	1	0	1	100.0%
NR系统内干扰、无线网桥/视频监控干扰	2	0	2	100.0%
LTE D频干扰、NR系统内干扰、干扰器	4	0	4	100.0%
总计	617	65	682	90.5%

Improved ResNet algorithm based intelligent interference identification

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