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1. 发明申请

WO2005002070A3 CORRELATION INTERFEROMETER GEOLOCATION 审中-公开
标题翻译：相关干扰物地球化学
公开(公告)号：WO2005002070A3
公开(公告)日：2006-02-16
申请号：PCT/US2004003373
申请日：2004-02-06
申请人： BAE SYSTEMS INFORMATION & ELEC , STRUCKMAN KEITH A
发明人： STRUCKMAN KEITH A
IPC分类号： G01S3/48 , H04B20060101 , G01S3/02 , G01S5/04
CPC分类号： G01S5/12 , G01S3/46 , G01S5/04
摘要： Correlation Interferometer Geo Location (CIGL) uses DF antenna array movement on an aircraft while taking a Plurality of sets of transinitted signal Measurements. Each measurement set is stored as data in a covariance matrix, and the matrices are each decomposed to yield measured array vectors. Using an array manifold table developed during calibration of the CIGI. system, and containing testing array vectors, the measured array vectors are each correlated to testing array vectors to develop a correlation Surface that includes compensation for perturbations Such as aircraft induced electromagnetic scattering, All the correlation surfaces are summed and normalized, with the resultant summation undergoing conjugate gradient processing to more accurately geo-locate the transmitter. Improved accuracy with fewer antennas and polarization independence are also achieved.
摘要翻译：相关干涉仪地理位置（CIGL）在飞行器上使用DF天线阵列运动，同时采取多套传输信号测量。每个测量集合作为数据存储在协方差矩阵中，并且各个矩阵被分解以产生测量的数组向量。使用在CIGI校准期间开发的阵列歧管表。系统，并且包含测试阵列向量，测量的阵列向量每个都与测试阵列向量相关联以形成相关表面，其包括对扰动的补偿，例如飞行器感应的电磁散射，将所有相关表面相加和归一化，共轭梯度处理更准确地定位发射机。还实现了更少的天线和极化独立性提高了精度。

2. 发明申请

WO2004021587A1 METHOD FOR SEPARATING INTERFERERING SIGNALS AND COMPUTING ARRIVAL ANGLES 审中-公开
标题翻译：分离干扰信号和计算方位角的方法
公开(公告)号：WO2004021587A1
公开(公告)日：2004-03-11
申请号：PCT/US2003/023158
申请日：2003-07-23
申请人： BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION, INC. , STRUCKMAN, Keith, A.
发明人： STRUCKMAN, Keith, A.
IPC分类号： H04B1/10
CPC分类号： H04B7/0854 , G01S3/74 , H04B7/086
摘要： A method is disclosed for processing all types of received, interfering radio frequency signals corrupted by noise to extract the individual signals without having any a priori knowledge about them. Received signals are converted for eigenspace processing (25) and are subjected to repeated non-linear time domain (31) and fast Fourier transform frequency domain processing (33) that calculates eigenstream beam forming weights U. By performing calculations in eigenspace, the number of independent weights U that must be calculated is generally reduced, minimizing calculating time. Once the weights U have been calculated in eigenspace they are transformed into antenna beam forming weights W (42) that are used to extract the individual signals and to determine the angle of arrival of each of the individual signals. Further time is saved because the weights W do not have to be updated for every time slice of the received signals.
摘要翻译：公开了一种用于处理由噪声损坏的所有类型的接收的干扰射频信号以提取各个信号而不具有关于它们的先验知识的方法。接收信号被转换为本征空间处理（25），并且经受重复的非线性时域（31）和快速傅里叶变换频域处理（33），其计算特征流形成权重U.通过在本征空间中进行计算，必须计算的独立权重U通常减少，最小化计算时间。一旦权重U已经在本征空间中被计算，它们被转换成天线波束形成权重W（42），用于提取各个信号并且确定每个单独信号的到达角。由于对接收到的信号的每个时间片不必更新权重W，因此节省更多的时间。

3. 发明申请

WO2007047119A2 MOVING TRANSMITTER CORRELATION INTERFEROMETER GEOLOCATION 审中-公开
标题翻译：移动发射机相关干扰仪地球物理
公开(公告)号：WO2007047119A2
公开(公告)日：2007-04-26
申请号：PCT/US2006/038882
申请日：2006-10-05
申请人： BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. , STRUCKMAN, Keith, A.
发明人： STRUCKMAN, Keith, A.
IPC分类号： G01S3/02
CPC分类号： G01S5/04 , G01S3/74 , G01S7/4021
摘要： A Moving Transmitter Correlation Interferometer Geo-Location (MT-CIGL) system is disclosed that permits locating both moving and stationary transmitters from moving DF equipment. A conjugate gradient based search routine is utilized which solves for the location of moving and stationary transmitters at the start of each measurement sequence and then solves for the velocity and direction of motion of the moving transmitter. This information is used to track the moving transmitter. Received signals are sampled, digitized and stored in covariance matrices. They are then summed and normalized using an equation that has velocity terms that are set to zero to minimize extraneous correlation peaks, and a maximum correlation peak is developed. A conjugate gradient search routine is used to find the correlation peak of the summed data. The value of the peak is then analyzed to see if it is above or below a predetermined value. If the peak value is above the predetermined value the transmitter is stationary and the located correlation peak is the location of the transmitter. If the peak value is below the predetermined value the transmitter is moving and the peak does not indicate the correct location of the transmitter. Another conjugate gradient search routine is performed using the previous erroneous peak as the starting point for the search to identify the actual location of the moving transmitter at the beginning of a search sequence. That location is then processed through the same equation, but without the velocity terms set to zero, to calculate the velocity and direction of motion of the transmitter. This information can then be used to plot a track for the moving transmitter.
摘要翻译：公开了一种移动发射机相关干涉仪地理位置（MT-CIGL）系统，其允许移动DF设备定位移动和固定发射机。使用基于共轭梯度的搜索程序，其解决了每个测量序列开始时移动和固定发射机的位置，然后解决了移动发射机的速度和运动方向。该信息用于跟踪移动发射机。接收信号被采样，数字化并存储在协方差矩阵中。然后使用具有设置为零的速度项的方程对它们进行求和和归一化，以最小化外部相关峰，并且产生最大相关峰。共轭梯度搜索程序用于找出求和数据的相关峰值。然后分析峰的值，看其是否高于或低于预定值。如果峰值高于预定值，则发射机是静止的，并且定位的相关峰值是发射机的位置。如果峰值低于预定值，则发射器正在移动，并且峰值不表示发射机的正确位置。使用先前的错误峰作为搜索的起始点来执行另一个共轭梯度搜索程序，以便在搜索序列的开头识别移动发射机的实际位置。然后通过相同方程处理该位置，但是将速度项设置为零，以计算发射机的速度和运动方向。该信息可用于绘制移动发射机的轨道。

4. 发明申请

WO2007047119A3 MOVING TRANSMITTER CORRELATION INTERFEROMETER GEOLOCATION 审中-公开
标题翻译：移动发射机相关干扰仪地球物理
公开(公告)号：WO2007047119A3
公开(公告)日：2008-01-10
申请号：PCT/US2006038882
申请日：2006-10-05
申请人： BAE SYSTEMS INFORMATION , STRUCKMAN KEITH A
发明人： STRUCKMAN KEITH A
IPC分类号： G01S19/29
CPC分类号： G01S5/04 , G01S3/74 , G01S7/4021
摘要： A Moving Transmitter Correlation Interferometer Geo-Location (MT-CIGL) system is disclosed that permits locating both moving and stationary transmitters from moving DF equipment. A conjugate gradient based search routine is utilized which solves for the location of moving and stationary transmitters at the start of each measurement sequence and then solves for the velocity and direction of motion of the moving transmitter. This information is used to track the moving transmitter. Received signals are sampled, digitized and stored in covariance matrices. They are then summed and normalized using an equation that has velocity terms that are set to zero to minimize extraneous correlation peaks, and a maximum correlation peak is developed. A conjugate gradient search routine is used to find the correlation peak of the summed data. The value of the peak is then analyzed to see if it is above or below a predetermined value. If the peak value is above the predetermined value the transmitter is stationary and the located correlation peak is the location of the transmitter. If the peak value is below the predetermined value the transmitter is moving and the peak does not indicate the correct location of the transmitter. Another conjugate gradient search routine is performed using the previous erroneous peak as the starting point for the search to identify the actual location of the moving transmitter at the beginning of a search sequence. That location is then processed through the same equation, but without the velocity terms set to zero, to calculate the velocity and direction of motion of the transmitter. This information can then be used to plot a track for the moving transmitter.
摘要翻译：公开了一种移动发射机相关干涉仪地理位置（MT-CIGL）系统，其允许移动DF设备定位移动和固定发射机。使用基于共轭梯度的搜索程序，其解决了每个测量序列开始时移动和固定发射机的位置，然后解决了移动发射机的速度和运动方向。该信息用于跟踪移动发射机。接收信号被采样，数字化并存储在协方差矩阵中。然后使用具有设置为零的速度项的方程对它们进行求和和归一化，以最小化外部相关峰，并且产生最大相关峰。共轭梯度搜索程序用于找出求和数据的相关峰值。然后分析峰的值，看其是否高于或低于预定值。如果峰值高于预定值，则发射机是静止的，并且定位的相关峰值是发射机的位置。如果峰值低于预定值，则发射器正在移动，并且峰值不表示发射机的正确位置。使用先前的错误峰作为搜索的起始点来执行另一个共轭梯度搜索程序，以便在搜索序列的开头识别移动发射机的实际位置。然后通过相同方程处理该位置，但是将速度项设置为零，以计算发射机的速度和运动方向。该信息可用于绘制移动发射机的轨道。

5. 发明申请

WO2005002070A2 CORRELATION INTERFEROMETER GEOLOCATION 审中-公开
标题翻译：相关干扰物地球化学
公开(公告)号：WO2005002070A2
公开(公告)日：2005-01-06
申请号：PCT/US2004/003373
申请日：2004-02-06
申请人： BAE SYSTEMS INFORMATION & ELECTRONIC SYSTEMS INTEGRATION INC. , STRUCKMAN, Keith, A.
发明人： STRUCKMAN, Keith, A.
IPC分类号： H04B
CPC分类号： G01S5/12 , G01S3/46 , G01S5/04
摘要： Correlation Interferometer Geo Location (CIGL) uses DF antenna array movement on an aircraft while taking a Plurality of sets of transinitted signal Measurements. Each measurement set is stored as data in a covariance matrix, and the matrices are each decomposed to yield measured array vectors. Using an array manifold table developed during calibration of the CIGI. system, and containing testing array vectors, the measured array vectors are each correlated to testing array vectors to develop a correlation Surface that includes compensation for perturbations Such as aircraft induced electromagnetic scattering, All the correlation surfaces are summed and normalized, with the resultant summation undergoing conjugate gradient processing to more accurately geo-locate the transmitter. Improved accuracy with fewer antennas and polarization independence are also achieved.
摘要翻译：相关干涉仪地理位置（CIGL）在飞行器上使用DF天线阵列运动，同时采取多套传输信号测量。每个测量集合作为数据存储在协方差矩阵中，并且各个矩阵被分解以产生测量的数组向量。使用在CIGI校准期间开发的阵列歧管表。系统，并且包含测试阵列向量，测量的阵列向量每个都与测试阵列向量相关联以形成相关表面，其包括对扰动的补偿，例如飞行器感应的电磁散射，将所有相关表面相加和归一化，共轭梯度处理更准确地定位发射机。还实现了更少的天线和极化独立性提高了精度。

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