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1. 发明申请

US20130157605A1 SYSTEM AND METHOD FOR DETECTION OF RF SIGNAL SPOOFING 有权
标题翻译：用于检测RF信号处理的系统和方法
公开(公告)号：US20130157605A1
公开(公告)日：2013-06-20
申请号：US13713708
申请日：2012-12-13
申请人： JEFF DICKMAN , Reza Ahmadi , Mathew A. Cosgrove , Sanjeev Gunawardena
发明人： JEFF DICKMAN , Reza Ahmadi , Mathew A. Cosgrove , Sanjeev Gunawardena
IPC分类号： H04B1/10
CPC分类号： H04B1/10 , G01S19/215 , H04K3/22 , H04K3/65 , H04K3/90
摘要： One embodiment of the invention includes a radio frequency (RF) receiver system. The system includes an antenna configured to receive an RF input signal and an RF signal front-end system configured to process the RF input signal to generate an equivalent digital signal. The system also includes a spoof detection system configured to analyze a power spectral density (PSD) of the equivalent digital signal and to compare the PSD of the equivalent digital signal with a predetermined baseline PSD to detect the presence of a spoofing signal component in the RF input signal.
摘要翻译：本发明的一个实施例包括射频（RF）接收机系统。该系统包括被配置为接收RF输入信号的天线和被配置为处理RF输入信号以产生等效数字信号的RF信号前端系统。该系统还包括被配置为分析等效数字信号的功率谱密度（PSD）并且将等效数字信号的PSD与预定基准PSD进行比较的欺骗检测系统，以检测RF中的欺骗信号分量的存在输入信号。

2. 发明授权

US08934859B2 System and method for detection of RF signal spoofing 有权
标题翻译：用于检测RF信号欺骗的系统和方法
公开(公告)号：US08934859B2
公开(公告)日：2015-01-13
申请号：US13713708
申请日：2012-12-13
申请人： Jeff Dickman , Reza Ahmadi , Mathew A. Cosgrove , Sanjeev Gunawardena
发明人： Jeff Dickman , Reza Ahmadi , Mathew A. Cosgrove , Sanjeev Gunawardena
IPC分类号： H04B1/10
CPC分类号： H04B1/10 , G01S19/215 , H04K3/22 , H04K3/65 , H04K3/90
摘要： One embodiment of the invention includes a radio frequency (RF) receiver system. The system includes an antenna configured to receive an RF input signal and an RF signal front-end system configured to process the RF input signal to generate an equivalent digital signal. The system also includes a spoof detection system configured to analyze a power spectral density (PSD) of the equivalent digital signal and to compare the PSD of the equivalent digital signal with a predetermined baseline PSD to detect the presence of a spoofing signal component in the RF input signal.
摘要翻译：本发明的一个实施例包括射频（RF）接收机系统。该系统包括被配置为接收RF输入信号的天线和被配置为处理RF输入信号以产生等效数字信号的RF信号前端系统。该系统还包括被配置为分析等效数字信号的功率谱密度（PSD）并且将等效数字信号的PSD与预定基准PSD进行比较的欺骗检测系统，以检测RF中的欺骗信号分量的存在输入信号。

3. 发明申请

US20130148763A1 SYSTEMS AND METHODS FOR ADAPTIVE SAMPLE QUANTIZATION 有权
标题翻译：用于自适应样本量化的系统和方法
公开(公告)号：US20130148763A1
公开(公告)日：2013-06-13
申请号：US13712558
申请日：2012-12-12
申请人： SANJEEV GUNAWARDENA , Jeff Dickman , Mathew A. Cosgrove
发明人： SANJEEV GUNAWARDENA , Jeff Dickman , Mathew A. Cosgrove
IPC分类号： H04B1/10
CPC分类号： H04B1/10 , G01S19/21 , G01S19/36 , H03M1/185 , H04L25/061
摘要： One embodiment includes an adaptive sample quantization system. The adaptive sample quantization system includes an antenna to receive a radio frequency (RF) signal having data encoded therein, and analog antenna electronics configured to convert the RF signal to an analog electrical signal. The system also includes an analog-to-digital converter (ADC) directly coupled to the antenna and configured to generate a plurality of consecutive digital samples of the RF signal. The system further includes a quantizer to determine a mode based on the plurality of consecutive digital samples and to select at least one threshold based on the determined mode. The quantizer can further compare each digital sample with the at least one threshold to generate a corresponding one of a plurality of output samples having a reduced number of bits relative to the respective digital sample to substantially mitigate potential interference and facilitate extraction of the data.
摘要翻译：一个实施例包括自适应采样量化系统。自适应采样量化系统包括用于接收具有其中编码的数据的射频（RF）信号的天线以及被配置为将RF信号转换为模拟电信号的模拟天线电子设备。该系统还包括直接耦合到天线并被配置为产生RF信号的多个连续数字采样的模数转换器（ADC）。该系统还包括量化器，用于基于多个连续数字样本确定模式，并且基于所确定的模式选择至少一个阈值。量化器可以进一步将每个数字样本与至少一个阈值进行比较，以产生相对于相应数字样本具有减少的位数的多个输出样本中的对应的一个，以便基本上减轻潜在的干扰并促进数据的提取。

4. 发明授权

US08934384B2 Packet-based input/output interface for a correlation engine 有权
标题翻译：用于相关引擎的基于分组的输入/输出接口
公开(公告)号：US08934384B2
公开(公告)日：2015-01-13
申请号：US13593028
申请日：2012-08-23
申请人： Sanjeev Gunawardena , Jeff Dickman , Mathew A. Cosgrove
发明人： Sanjeev Gunawardena , Jeff Dickman , Mathew A. Cosgrove
IPC分类号： H04B1/709 , H04L5/16
CPC分类号： H04B1/709 , G01S19/35 , H04B2201/70715
摘要： A navigation system includes a correlation engine configured to despread a received signal. The correlation engine includes a correlator configured to evaluate the received signal against a replica signal to produce a correlation result, and a packet encoder configured to produce a packet comprising a destination address, a source address, and the correlation result. An input/output interface is configured to provide the packet to another component in the navigation system.
摘要翻译：导航系统包括配置成对接收到的信号进行解扩的相关引擎。相关引擎包括相关器，其被配置为针对复制信号评估接收信号以产生相关结果;以及分组编码器，被配置为产生包括目的地地址，源地址和相关结果的分组。输入/输出接口被配置为将分组提供给导航系统中的另一个组件。

5. 发明申请

US20130156073A1 RECONFIGURABLE CORRELATOR FOR A NAVIGATION SYSTEM 有权
标题翻译：用于导航系统的可重新配置的相关器
公开(公告)号：US20130156073A1
公开(公告)日：2013-06-20
申请号：US13713817
申请日：2012-12-13
申请人： Sanjeev Gunawardena , Jeff Dickman , Mathew A. Cosgrove
发明人： Sanjeev Gunawardena , Jeff Dickman , Mathew A. Cosgrove
IPC分类号： H04B1/709
CPC分类号： H04B1/709 , G01S19/21 , G01S19/24 , G01S19/30 , G01S19/37
摘要： Systems and methods are provided for a correlator system. The system includes a plurality of numerically controlled oscillators and a multiplier configured to receive an input stream representing a received signal. A carrier multiplexer is configured to select between respective outputs of at least two of the plurality of numerically controlled oscillators and provide the selected output to the multiplier. A code generator is configured to provide a replica code. A delay component is configured to provide a delayed code from the replica code. A code multiplexer is configured to selectively provide each of the delayed code and the replica code to the multiplier.
摘要翻译：为相关器系统提供系统和方法。该系统包括多个数控振荡器和被配置为接收表示接收信号的输入流的乘法器。载波多路复用器被配置为在所述多个数字振荡器中的至少两个的相应输出之间选择并将选择的输出提供给乘法器。代码生成器被配置为提供副本代码。延迟组件被配置为从副本代码提供延迟的代码。代码复用器被配置为选择性地将延迟代码和复制代码中的每一个提供给乘法器。

6. 发明申请

US20130051285A1 PACKET-BASED INPUT/OUTPUT INTERFACE FOR A CORRELATION ENGINE 有权
标题翻译：用于相关发动机的基于分组的输入/输出接口
公开(公告)号：US20130051285A1
公开(公告)日：2013-02-28
申请号：US13593028
申请日：2012-08-23
申请人： Sanjeev Gunawardena , Jeff Dickman , Mathew A. Cosgrove
发明人： Sanjeev Gunawardena , Jeff Dickman , Mathew A. Cosgrove
IPC分类号： H04B1/709 , H04L5/16
CPC分类号： H04B1/709 , G01S19/35 , H04B2201/70715
摘要： A navigation system includes a correlation engine configured to despread a received signal. The correlation engine includes a correlator configured to evaluate the received signal against a replica signal to produce a correlation result, and a packet encoder configured to produce a packet comprising a destination address, a source address, and the correlation result. An input/output interface is configured to provide the packet to another component in the navigation system.
摘要翻译：导航系统包括配置成对接收到的信号进行解扩的相关引擎。相关引擎包括相关器，其被配置为针对复制信号评估接收信号以产生相关结果;以及分组编码器，被配置为产生包括目的地地址，源地址和相关结果的分组。输入/输出接口被配置为将分组提供给导航系统中的另一个组件。

7. 发明授权

US09709681B2 Digital beamforming for simultaneously mitigating weak and strong interference in a navigation system 有权
公开(公告)号：US09709681B2
公开(公告)日：2017-07-18
申请号：US13712633
申请日：2012-12-12
申请人： Jeff Dickman , Mathew A. Cosgrove
发明人： Jeff Dickman , Mathew A. Cosgrove
IPC分类号： G01S19/21 , G01S19/36
CPC分类号： G01S19/21 , G01S19/215 , G01S19/36
摘要： An adaptive cascaded electronic protection processing system for global navigation satellite system (GNSS) threat mitigation is provided. The system includes a precorrelation characterization component configured to provide at least one parameter characterizing a plurality of received signals. A correlator is configured to provide a plurality of correlation results, each representing one of the plurality of received signals. A spatial weight contribution component is configured to determine an optimal set of digital beam-forming weights via an optimization process according to the at least one parameter. A postcorrelation characterization component is configured to determine at least one constraint on the optimization process according to the plurality of correlation results.

8. 发明授权

US10288742B2 Digital beam-forming for simultaneously mitigating weak and strong interference in a navigation system 有权
公开(公告)号：US10288742B2
公开(公告)日：2019-05-14
申请号：US15462123
申请日：2017-03-17
申请人： Jeff Dickman , Mathew A. Cosgrove
发明人： Jeff Dickman , Mathew A. Cosgrove
IPC分类号： G01S19/21 , G01S19/36
摘要： An adaptive cascaded electronic protection processing system for global navigation satellite system (GNSS) threat mitigation is provided. The system includes a precorrelation characterization component configured to provide at least one parameter characterizing a plurality of received signals. A correlator is configured to provide a plurality of correlation results, each representing one of the plurality of received signals. A spatial weight contribution component is configured to determine an optimal set of digital beam-forming weights via an optimization process according to the at least one parameter. A postcorrelation characterization component is configured to determine at least one constraint on the optimization process according to the plurality of correlation results.

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