射频隐身数据链的通信波形参数优化建模

谢桂辉 1; 田茂 1; 王正海 2; 唐晓庆 1; 李杰 1

doi:10.7652/xjtuxb201504019

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射频隐身数据链的通信波形参数优化建模

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- 射频隐身数据链的通信波形参数优化建模
- An Optimization Model for Communication Waveform Parameters of Radio Frequency Stealth Datalink
- 西安交通大学学报 2015年49卷第4期页码：116-122
- 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：
  
  : 2014-06-23。作者简介: 谢桂辉(1988—),男,博士生;田茂(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(61261010)
- DOI：10.7652/xjtuxb201504019
  中图分类号： TN975
- 网络首发：2015-04-10，
  
  纸质出版：2015
- 稿件说明：
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谢桂辉 1, 田茂 1, 王正海 2, 等. 射频隐身数据链的通信波形参数优化建模[J]. 西安交通大学学报, 2015,49(4):116-122.

An Optimization Model for Communication Waveform Parameters of Radio Frequency Stealth Datalink[J]. 2015, 49(4): 116-122.
谢桂辉 1, 田茂 1, 王正海 2, 等. 射频隐身数据链的通信波形参数优化建模[J]. 西安交通大学学报, 2015,49(4):116-122. DOI： 10.7652/xjtuxb201504019.

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

LAURA S. Stealth technology: the potential to make the visible, invisible [C]∥Proceedings of 2014 International Conference on Unmanned Systems. Arlington, VA, USA: Association for Unmanned Vehicle Systems International, 2014: 1463-1482.

杨宇晓, 周建江, 陈军, 等. 基于最大条件熵的射频隐身数据链猝发通信模型 [J]. 航空学报, 2014, 35(5): 1385-1393.

YANG Yuxiao, ZHOU Jianjiang, CHEN Jun, et al. Burst communication datalink model for radio frequency stealth based on conditional maximum entropy [J]. Acta Aeronautica et Astronautica Sinica, 2014, 35(5): 1385-1393.

杨宇晓, 周建江, 陈卫东, 等. 基于空间信息的射频隐身数据链最优能量控制算法 [J]. 宇航学报, 2013, 34(7): 1008-1013.

YANG Yuxiao, ZHOU Jianjiang, CHEN Weidong, et al. An optimal energy control algorithm for radio frequency stealth datalink based on spatial information [J]. Journal of Astronautics, 2013, 34(7): 1008-1013.

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YANG H B, ZHOU J J, WANG F, et al. Design and analysis of Costas/PSK RF stealth signal waveform [C]∥Proceedings of 2011 International Conference on Radar. Piscataway, NJ, USA: IEEE, 2011: 1247-1250.

DILLARD G M, REUTER M, ZEIDLER J, et al. Cyclic code shift keying: a low probability of intercept communication technique [J]. IEEE Transactions on Aerospace and Electronic Systems, 2003, 39(3): 786-798.[7] REED D E, WICKERT M A. Spread spectrum signals with low probability of chip rate detection [J]. IEEE Journal on Selected Areas in Communications, 1989, 7(4): 595-601.

WANG Y H, PAPADOPOULOS H C. Physical-layer secrecy in AWGN via a class of chaotic DSSS systems: analysis and design [J]. IEEE Transactions on Signal Processing, 2004, 52(9): 2637-2649.

LI Y S, WU C, SUN D Y, et al. A new physical layer transmission scheme for LPI and high throughput in the cooperative SC-FDMA system [J]. Journal of Communications and Networks, 2013, 15(5): 457-463.

FANCEY C, ALABASTER C M. The metrication of low probability of intercept waveform [C]∥Proceedings of 2010 International Conference on Waveform Diversity and Design. Piscataway, NJ, USA: IEEE, 2010: 58-62.

LIU R H, LUO J H, SPASOJEVIC P. Adaptive transmission with variable-rate turbo bit-interleaved coded modulation [J]. IEEE Transactions on Wireless Communications, 2007, 6(1): 3926-2936.

梅文华, 蔡善法. JTIDS/Link16数据链 [M]. 长沙: 国防工业出版社, 2007: 19-20.

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