An Optimization Model for Communication Waveform Parameters of Radio Frequency Stealth Datalink

doi:10.7652/xjtuxb201504019

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An Optimization Model for Communication Waveform Parameters of Radio Frequency Stealth Datalink

更新时间：2025-07-09

- An Optimization Model for Communication Waveform Parameters of Radio Frequency Stealth Datalink
- Vol. 49, Issue 4, Pages: 116-122(2015)
- 作者机构：
  
  武汉大学电子信息学院,武汉,430072
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201504019
  CLC： TN975
- Online First：10 April 2015，
  
  Published：2015
- 稿件说明：
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An Optimization Model for Communication Waveform Parameters of Radio Frequency Stealth Datalink[J]. 2015, 49(4): 116-122.
DOI：

An Optimization Model for Communication Waveform Parameters of Radio Frequency Stealth Datalink[J]. 2015, 49(4): 116-122. DOI： 10.7652/xjtuxb201504019.

摘要

针对数据链在恶劣环境下被截获概率过高的问题

建立了一种基于射频隐身的通信波形参数优化模型。基于环境感知系统得到的通信距离和截获距离等先验知识

该优化模型以原始消息序列长度、编码码率、扩频因子、调制方式和波形分集度为优化参数

以指定距离的通信速率和被截获概率为优化目标

通过归一化和线性加权变换得到总优化目标

最后使用遍历法得到总优化目标的最大值并将对应的通信波形参数作为最优解。仿真结果表明:当载体信息安全等级提高时

优化模型在约束值范围内将通信速率适度降低

将被截获概率从原来的8.6×10

-7

降低至6.9×10

-9

; 当数据链处于最恶劣的环境时

相同平均通信速率条件下优化后数据链的被截获概率可降低至优化前的1/1 000

大大提高了射频隐身性能。

Abstract

An optimization model for communication waveform parameters based on radio frequency(RF)stealth is proposed to solve the problem of high intercept probability of datalinks in adverse environment. According to the prior knowledge of the communication distance and intercept distance obtained from environmental awareness system

the original message sequence length

channel coding rate

spreading factor

modulation mode and signal diversity are regarded as optimization parameters of the model

and the communication rate and intercept probability at given distance are taken as optimization objectives. The gross optimization objective of the model is generated from these two objectives through normalization and linear weighting. The traversing method is used

to find the maximal value of the gross objective

and the corresponding communication parameters are taken as the optimal solution. Simulation results show that when the security level of the carrier information increases

the model decreases the communication rate moderately within the constraint value range

and the intercept probability is decreased from 8.6×10

-7

to 6.9×10

-9

. It is also shown that under the same communication rate level

the intercept probability of the model's datalink is 1/1 000 of that before optimization in the most adverse environment. Thus

the RF stealth performance improves significantly.

关键词

Keywords

references

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