短波数字信道化通信探测一体化快速建链方法

doi:10.11959/j.issn.1000-436x.2023001

Abstract

Abstract:

A link-establishment method based on short-wave digital channelized receiver was proposed for the traditional automatic link establishment technology in short-wave communications with the low accuracy of frequency selection, low efficiency of link establishment, and low utilization of resources, etc.The parallel receiving mechanism for full frequency band in short-wave communications was realized by using digital channelization.An integrated waveform of communication and detection was designed to deal with the time redundancy and equipment compatibility problems caused by waveform switching during link establishment.A fast link-establishment method was designed, to achieve a fast and robust connection in complex electromagnetic environments.The results show that the channelized structure can enhance the receiving performance of the link-establishment system, the link-establishment method has obvious advantages, channel parameter estimation method has a high estimation accuracy compared to the traditional link-establishment method and the applicability of the proposed method in practical short-wave channel environment is verified.

Key words: short-wave communications, digital channelization, fast link-establishment, integrated communication and detection, channel parameter estimation

CLC Number:

TN925

Guojun LI, Cuiling XIANG, Changrong YE, Zunli WANG. Fast link-establishment method of integrated of communication and detection based on short-wave digital channelization[J]. Journal on Communications, 2023, 44(1): 89-102.

Figures/Tables 29

References 23

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仿真情形	信道条件	发送机	接收机
1	AWGN信道	在短波数字信道化接收机每路子信道中心频率点	短波数字信道化接收机接收处理
		上，同时生成发送1 024个信号
2	短波标准信道	在短波数字信道化接收机每路子信道中心频率点	短波数字信道化接收机接收处理
		上，同时生成发送1 024个信号
3	AWGN信道	在基带上依次生成发送1 024个信号	不使用短波数字信道化接收机接收处理
4	短波标准信道	在基带上依次生成发送1 024个信号	不使用短波数字信道化接收机接收处理

区域	子信道号	分类特性
A	1～65、960～1 024	受数字下变频和第一级信道化滤
		波器过渡带影响
B	32n、32n+1	仅受第一级信道化滤波器过渡带
	n∈(3,4,5,…,29)	影响
C	其他	没有受到滤波器过渡带影响

仿真情形	信道条件	发送机	接收机
1	AWGN信道	在区域 C 的第 496	短波数字信道
		子信道中心频率点	化接收机接收
		上生成发送信号	处理
2	短波信道	在区域 C 的第 496	短波数字信道
		子信道中心频率点	化接收机接收
		上生成发送信号	处理
3	AWGN信道	在基带上生成发送	不使用短波数
		信号	字信道化接收
			机接收处理
4	短波信道	在基带上生成发送	不使用短波数
		信号	字信道化接收
			机接收处理

Fast link-establishment method of integrated of communication and detection based on short-wave digital channelization

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References 23

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