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1. 发明授权

US08599901B2 Method and apparatus for tracking a frequency-hopped signal 有权
标题翻译：跟踪跳频信号的方法和装置
公开(公告)号：US08599901B2
公开(公告)日：2013-12-03
申请号：US12753936
申请日：2010-04-05
申请人： Efthimios E. Tsakonas , Nikolaos D. Sidiropoulos , Ananthram Swami
发明人： Efthimios E. Tsakonas , Nikolaos D. Sidiropoulos , Ananthram Swami
IPC分类号： H04B1/713
CPC分类号： H04B1/713 , H04K3/25 , H04K3/41 , H04K3/42 , H04K3/43 , H04K3/45
摘要： A frequency hopping signal receiving system comprising: a receiver for extracting discrete-time samples from the signal; a memory connected to the receiver for storing the extracted discrete-time samples from the signal; at least one processor operatively connected to the memory for: determining a state-space vector that captures relevant information to describe the dynamics of the signal; selecting a parameter to represent the probability of hopping associated with the signal; generating particle filters to estimate unknown parameters in the state-space vector based upon the extracted discrete-time samples by generating random particles that approximate the filtering distribution having importance weights; specifying the importance function in closed-form in a convenient mixture representation, which enables drawing particles and updating the importance weights; constructing an estimator to generate hop particles based upon observing at least one sample hop and then evaluating the estimator using a conditional expected value; using a spectrogram to generate particles in conjunction with an importance function; and estimating the hop frequency, hop time, and amplitude parameters, and a method thereof.
摘要翻译：一种跳频信号接收系统，包括：接收机，用于从所述信号中提取离散时间样本; 连接到所述接收器的存储器，用于从所述信号存储所提取的离散时间样本; 至少一个处理器可操作地连接到存储器，用于：确定捕获相关信息以描述信号的动态的状态空间向量; 选择参数以表示与信号相关联的跳频的概率; 生成粒子滤波器以通过产生近似具有重要权重的滤波分布的随机粒子，基于提取的离散时间样本来估计状态空间向量中的未知参数; 在方便的混合表示中指定封闭形式的重要性功能，可以绘制粒子并更新重要性权重; 构建估计器以基于观察至少一个样本跃点来生成跳跃粒子，然后使用条件期望值来评估估计器; 使用光谱图与重要性函数结合产生粒子; 以及估计跳频，跳时间和振幅参数及其方法。

2. 发明申请

US20110243192A1 METHOD AND APPARATUS FOR TRACKING A FREQUENCY-HOPPED SIGNAL 有权
标题翻译：跟踪频率信号的方法和装置
公开(公告)号：US20110243192A1
公开(公告)日：2011-10-06
申请号：US12753936
申请日：2010-04-05
申请人： EFTHIMIOS E. TSAKONAS , NIKOLAOS D. SIDIROPOULOS
发明人： EFTHIMIOS E. TSAKONAS , NIKOLAOS D. SIDIROPOULOS
IPC分类号： H04B1/713
CPC分类号： H04B1/713 , H04K3/25 , H04K3/41 , H04K3/42 , H04K3/43 , H04K3/45
摘要： A frequency hopping signal receiving system comprising: a receiver for extracting discrete-time samples from the signal; a memory connected to the receiver for storing the extracted discrete-time samples from the signal; at least one processor operatively connected to the memory for: determining a state-space vector that captures relevant information to describe the dynamics of the signal; selecting a parameter to represent the probability of hopping associated with the signal; generating particle filters to estimate unknown parameters in the state-space vector based upon the extracted discrete-time samples by generating random particles that approximate the filtering distribution having importance weights; specifying the importance function in closed-form in a convenient mixture representation, which enables drawing particles and updating the importance weights; constructing an estimator to generate hop particles based upon observing at least one sample hop and then evaluating the estimator using a conditional expected value; using a spectrogram to generate particles in conjunction with an importance function; and estimating the hop frequency, hop time, and amplitude parameters, and a method thereof.
摘要翻译：一种跳频信号接收系统，包括：接收机，用于从所述信号中提取离散时间样本; 连接到所述接收器的存储器，用于从所述信号存储所提取的离散时间样本; 至少一个处理器可操作地连接到存储器，用于：确定捕获相关信息以描述信号的动态的状态空间向量; 选择参数以表示与信号相关联的跳频的概率; 生成粒子滤波器以通过产生近似具有重要权重的滤波分布的随机粒子，基于提取的离散时间样本来估计状态空间向量中的未知参数; 在方便的混合表示中指定封闭形式的重要性功能，可以绘制粒子并更新重要性权重; 构建估计器以基于观察至少一个样本跃点来生成跳跃粒子，然后使用条件期望值来评估估计器; 使用光谱图与重要性函数结合产生粒子; 以及估计跳频，跳时间和振幅参数及其方法。

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