【作者】 滕振宇；

【导师】 潘成胜；

【作者基本信息】 南京理工大学 ， 导航、制导与控制， 2008， 博士

【摘要】 本文重点针对采用Ka及毫米波频段的宽带、高速跳频通信系统,开展了相关对抗技术的研究。本论文的主要研究成果及创新点是:1.详细研究了各种气候条件下的Ka及毫米波电磁波传播特性,提出了利用蒸发波导实现Ka及毫米波超视距干扰的机理。2.首次详细研究了部分驻留时间干扰对跳频及跳扩结合通信系统同步捕获及跟踪的影响,得出了部分驻留时间干扰即可对跳频及跳扩结合通信系统同步捕获及跟踪过程造成显著影响的结论。3.在部分驻留时间干扰原理基础上,提出了更高跳速梳状谱干扰方法。该方法可以以较低的功率代价实现对跳频及跳扩结合通信系统的有效干扰。4.在对常用跳频码混沌特性分析基础上,得出了常用跳频码具有混沌特性的结论,由此提出了可以运用混沌理论对跳频通信系统进行频率预测—引导干扰的思路。该方法可以在保证干扰效果的同时,显著降低干扰功率。5.提出了基于关联度的跳频频率预测方法,该方法适用于跳频通信系统引导干扰中,较传统的基于欧氏距离意义下的最邻域混沌预测方法具有更高的预测精度。6.在基于关联度的跳频频率预测方法基础上,提出了多步预测方法,可以进一步缩短预测时间。7.详细分析了数据缺损条件下的基于关联度的跳频频率预测方法的性能,得出了数据缺损会对预测方法带来负面影响的结论。并提出了利用预测值代替缺损数据的解决措施。更多还原

【Abstract】 This dissertation conducts correlative research on confrontation technology against the wide-band and high-speed FH communication systems using Ka & Millimeter Wave frequency.This dissertation has made the following main research results and innovations:1. The transmission features of Ka & Millimeter electromagnetic waves under all kinds of climate conditions have been detailed studied, and a mechanism of using evaporation duct to implement the Ka & Millimeter Wave interference over the horizon detection has been put forward.2. The influence of part-time resident interference on the synchronic capture and tracking of FH and FH/DS communication systems has been detailed studied firstly and the conclusion of remarkable influence has been drawn.3. Based on the theory of part-time resident interference, an interfering method of comb-shape spectrum with faster hopping speed has been put forward, which can achieve an effective interference against FH and FH/DS communication systems with lower power.4. Based on analyzing the chaos feature of common FH codes, the conclusion that the common FH codes have chaos feature has been drawn. Therefore, an assumption to use the chaos theory to predict frequency of FH communication system to guide the interference has been suggested. This method can lower the interference power and ensure interference effectiveness.5. A predicting method based on relevance degree has been proposed. This method is applicable to the guidance of interference with FH communication systems and is more accurate than the chaos predicting method of the nearest points in phase space based on the traditional Euclid distance.6. According to the predicting method based on relevance degree, the method of multiple-step predicting has been put forward to shorten the predicting time.7. The capability of the predicting method based on relevance degree in the condition of partial data absence has been analyzed in details, and the negative influence conclusion of data absence has been drawn. And a solution to replace the miss data with a predicted value has been suggested.更多还原