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| 基于DDWS的离散混沌信号波形设计 | |
| 引用本文： | 陆璐,李钊,冯珂珂,施赛男.基于DDWS的离散混沌信号波形设计[J].无线电工程,2009,39(9):19-21. |
| 作者姓名： | 陆璐 李钊 冯珂珂 施赛男 |
| 作者单位： | 1. 第二炮兵工程学院,陕西,西安,710025 2. 第二炮兵驻石家庄地区军事代表室,河北,石家庄,050081 3. 第二炮兵驻200厂军事代表室,北京,100036 4. 北京交通大学,北京,100044 |
| 摘 要： | 介绍了直接数字合成技术的原理和特点,并针对低截获概率信号大时宽带宽的要求,通过对直接数字波形合成与直接数字频率合成的比较,提出了一种基于直接数字波形合成技术产生具有伪随机特性的混沌信号解决方案。利用该技术设计离散混沌系统,并由该系统生成具有混沌波形的中频信号。计算机仿真结果表明,该信号的主要性能均满足低截获指标要求,从而使该方案具备很强的低截获及抗干扰能力。 |
| 关 键 词： | 混沌信号 离散混沌 直接数字合成 模糊函数 |
Design of Signal with Discrete Chaotic Waveform Based on DDWS |
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| LU Lu,LI Zhao,FENG Ke-ke,SHI Sai-nan.Design of Signal with Discrete Chaotic Waveform Based on DDWS[J].Radio Engineering of China,2009,39(9):19-21. | |
| Authors: | LU Lu LI Zhao FENG Ke-ke SHI Sai-nan |
| Affiliation: | LU Lu , LI Zhao, FENG Ke-ke, SHI Sai-nan (1. The Second Artillery Engineering University, Xi ＇ an Shaanxi 710025, China ; 2. The Military Representative Office of the Second Artillery in Shijiazhuang, Shijiazhuang Hebei 050081, China; 3. The Military Representative Office of the Second Artillery in 200 Factory, Beijing 100036, China ; 4. Beijing Jiaotong University, Beijing 100044, China ) |
| Abstract: | In this paper, the principle and characteristic of DDS is discussed. According to the requirement of the LPI signal, this paper researches and compares DDWS and DDFS, and presents a method of generating chaotic signals with the characteristic of pseudo-random based on DDWS, and designs the discrete chaotic system with DDS. This system generates the medium-frequency signal. All the simulation results meet the system requirements, thus improving the low-interception probability and anti-jamming capability. |
| Keywords: | chaotic signal discrete chaotic DDS ambiguity function |
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