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1. 发明授权

US08326240B1 System for specific emitter identification 有权
标题翻译：特定发射体识别系统
公开(公告)号：US08326240B1
公开(公告)日：2012-12-04
申请号：US12891624
申请日：2010-09-27
申请人： Shubha L. Kadambe , Jason A. Fuemmeler , Carlos J. Chavez , W. Sam Spencer , Gina M. Reyes , Robert J. Frank , Michael N. Newhouse
发明人： Shubha L. Kadambe , Jason A. Fuemmeler , Carlos J. Chavez , W. Sam Spencer , Gina M. Reyes , Robert J. Frank , Michael N. Newhouse
IPC分类号： H04B17/00 , H03C1/62
CPC分类号： G01S5/0215 , H04B1/70735 , H04B17/27 , H04B17/336 , H04B17/345 , H04K3/22 , H04K3/228 , H04K3/45 , H04K3/822
摘要： An apparatus for identifying a specific emitter in the presence of noise and/or interference is disclosed. The apparatus includes a sensor configured to sense radio frequency signal data, the signal data containing noise and signal from at least one emitter, a reference estimation unit configured to estimate a reference signal relating to the signal transmitted by one emitter, a feature estimation unit configured to generate one or more estimates of one or more feature from the reference signal and the signal transmitted by that particular emitter, and an emitter identifier configured to identify the signal transmitted by that particular emitter as belonging to a specific device using one or more feature estimates. The emitter identifier identifies the signal transmitted by that particular emitter as belonging to a specific device using Gaussian Mixture Models and the Bayesian decision engine. The apparatus may also include an SINR enhancement unit configured to enhance the SINR of the data before the reference estimation unit estimates the reference signal.
摘要翻译：公开了一种用于在存在噪声和/或干扰的情况下识别特定发射器的装置。该装置包括：传感器，被配置为感测射频信号数据，包含噪声的信号数据和来自至少一个发射器的信号;参考估计单元，被配置为估计与由一个发射器发送的信号有关的参考信号;配置的特征估计单元从所述参考信号和由所述特定发射器发送的信号产生一个或多个特征的一个或多个估计，以及发射器标识符，其被配置为使用一个或多个特征估计来识别由所述特定发射器发送的属于特定设备的信号。发射器标识符将由特定发射器发送的信号识别为使用高斯混合模型和贝叶斯判决引擎的特定设备。该装置还可以包括被配置为在参考估计单元估计参考信号之前增强数据的SINR的SINR增强单元。

2. 发明授权

US09057772B1 Referenced-based radio frequency feature estimation 有权
标题翻译：基于参考的射频特征估计
公开(公告)号：US09057772B1
公开(公告)日：2015-06-16
申请号：US12891609
申请日：2010-09-27
申请人： Carlos J. Chavez , W. Sam Spencer , Shubha L. Kadambe , Robert J. Frank , Gina M. Reyes , Michael N. Newhouse , Jason A. Fuemmeler
发明人： Carlos J. Chavez , W. Sam Spencer , Shubha L. Kadambe , Robert J. Frank , Gina M. Reyes , Michael N. Newhouse , Jason A. Fuemmeler
IPC分类号： H04B17/00 , G01S5/02 , H04B1/7073 , H04B17/27 , H04B17/336 , H04B17/345
CPC分类号： G01S5/0215 , H04B1/70735 , H04B17/27 , H04B17/336 , H04B17/345
摘要： Disclosed is an apparatus for estimating the features of a radio frequency signal including a reference signal generator configured for generating a reference signal from a complex signal and one or more feature estimation units configured to generate one or more feature estimates from the reference signal and the complex signal. Techniques for creating reference signals from both signals spread by a scrambling code and FM signals are discussed.
摘要翻译：公开了一种用于估计射频信号的特征的装置，其包括被配置为从复信号生成参考信号的参考信号发生器和被配置为从参考信号和复合体生成一个或多个特征估计的一个或多个特征估计单元信号。讨论了通过扰码和FM信号扩展的两个信号创建参考信号的技术。

3. 发明授权

US08743854B1 Signal separation and SINR enhancement 有权
标题翻译：信号分离和SINR增强
公开(公告)号：US08743854B1
公开(公告)日：2014-06-03
申请号：US12891588
申请日：2010-09-27
申请人： Jason A. Fuemmeler , Gina M. Reyes , Shubha L. Kadambe , Robert J. Frank , Carlos J. Chavez , W. Sam Spencer , Michael N. Newhouse
发明人： Jason A. Fuemmeler , Gina M. Reyes , Shubha L. Kadambe , Robert J. Frank , Carlos J. Chavez , W. Sam Spencer , Michael N. Newhouse
IPC分类号： H04B7/216
CPC分类号： H04B17/336 , H04B1/7107
摘要： An apparatus and method for signal separation and SINR improvement is disclosed. In particular, disclosed is an iterative technique whereby a noisy signal, that may include signals from one or more distinct emitters, is first improved through an SINR improvement technique. Next, one signal from the noisy signal is identified and a reference signal substantially free of noise and interference is generated for this signal, and then this reference signal is subtracted from the noisy signal. This process is repeated until no other signals may be identified. In this way, the signal with the highest SINR may be identified first and then removed from the original signal. As such, the identified signal is no longer present as interference for the remaining signals, thus improving each of the remaining signals' respective SINRs.
摘要翻译：公开了一种用于信号分离和SINR改进的装置和方法。特别地，公开了一种迭代技术，其中可以包括来自一个或多个不同发射器的信号的噪声信号首先通过SINR改进技术得到改进。接下来，识别来自噪声信号的一个信号，并为该信号产生基本上没有噪声和干扰的参考信号，然后从噪声信号中减去该参考信号。重复该过程，直到不能识别出其它信号。以这种方式，可以首先识别具有最高SINR的信号，然后从原始信号中去除。因此，所识别的信号不再作为对剩余信号的干扰而存在，从而改善了每个剩余信号的各自的SINR。

4. 发明授权

US08494464B1 Cognitive networked electronic warfare 有权
标题翻译：认知联网电子战
公开(公告)号：US08494464B1
公开(公告)日：2013-07-23
申请号：US12877418
申请日：2010-09-08
申请人： Shubba L. Kadambe , Benjamin J. Haan , Jason A. Fuemmeler , W. Sam Spencer , Carlos J. Chavez , Robert J. Frank
发明人： Shubba L. Kadambe , Benjamin J. Haan , Jason A. Fuemmeler , W. Sam Spencer , Carlos J. Chavez , Robert J. Frank
IPC分类号： H03C1/62
CPC分类号： H04K3/45 , G01S5/06
摘要： An apparatus for sensing and classifying radio communications is provided. The apparatus includes one or more sensor units configured to detect radio frequency signals, a signal classifier configured to classify the detected radio frequency signals into a classification, the classification including at least one known signal type and an unknown signal type, a clustering learning algorithm capable of finding clusters of common signals among the previously seen unknown signals. The system is then further configured to use these clusters to retrain the signal classifier to recognize these signals as a new signal type.
摘要翻译：提供了一种用于感测和分类无线电通信的装置。该装置包括被配置为检测射频信号的一个或多个传感器单元，被配置为将检测到的射频信号分类为分类的信号分类器，该分类包括至少一种已知信号类型和未知信号类型，能够进行聚类学习算法在以前看到的未知信号中找到共同信号的簇。该系统然后被进一步配置为使用这些簇来重新训练信号分类器以将这些信号识别为新的信号类型。

5. 发明授权

US08392149B1 Adaptive second order threshold calibration technique for radiometric signal detection 有权
标题翻译：用于辐射信号检测的自适应二阶阈值校准技术
公开(公告)号：US08392149B1
公开(公告)日：2013-03-05
申请号：US12877397
申请日：2010-09-08
申请人： W. Sam Spencer , Carlos J. Chavez
发明人： W. Sam Spencer , Carlos J. Chavez
IPC分类号： G06F15/00
CPC分类号： G06K9/38 , G01S7/021
摘要： A apparatus configured to detect the presence of one or more unknown signals in the presence of noise and/or interference. The apparatus includes an input configured to receive an input data from a sensor, an integrator configured to integrate the power of the input data over a period of time, and a comparator configured to compare the integrated power to a threshold to determine if the input data contains at least one signal, or if the input data contains noise only. The apparatus may further include a mean estimator configured to estimate the mean of the power integrated input data over a period of time, a variance estimator configured to estimate the variance of the power integrated input data over a period of time, and a threshold calculator configured to calculate the threshold value based on the estimated mean or estimate mean and estimated variance.
摘要翻译：一种被配置为在存在噪声和/或干扰的情况下检测一个或多个未知信号的存在的装置。该装置包括被配置为从传感器接收输入数据的输入，经配置以在一段时间内积分输入数据的功率的积分器和被配置为将积分功率与阈值进行比较以确定输入数据包含至少一个信号，或者输入数据仅包含噪声。该装置还可以包括被配置为在一段时间内估计功率集成输入数据的平均值的平均估计器，被配置为估计功率集成输入数据在一段时间内的方差的方差估计器，以及阈值计算器配置基于估计的平均值或估计平均值和估计方差来计算阈值。

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