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1.发明申请METHODS AND SYSTEMS FOR DISTINGUISHING A SIGNAL OF INTEREST FROM INTERFERENCE SIGNALS 有权用于识别干扰信号感兴趣的信号的方法和系统公开(公告)号：US20120300822A1
公开(公告)日：2012-11-29
申请号：US13117407
申请日：2011-05-27
CPC分类号： H04B1/1027 , H04L25/03
摘要： A method for distinguishing a signal of interest from one or more interference signals in a received analog signal comprises receiving an analog signal at a radio front end, and transmitting the received analog signal to an analog-to-digital converter to sample data in the received analog signal and output a digital signal. A sub-channel Fast Fourier Transform (FFT) is performed on the digital signal, and sub-channel FFT bin magnitudes are averaged over a set period of time to determine a shape of the received signal. The shape of the received signal is compared to one or more signal reference patterns by computing a metric for the shape of the received signal, and computing a metric for the one more signal reference patterns. The computed metrics are then compared to a predetermined threshold value to determine the presence, or lack thereof, of a signal of interest in the received signal.
摘要翻译： 用于将感兴趣的信号与接收的模拟信号中的一个或多个干扰信号区分开的方法包括：在无线电前端接收模拟信号，并将所接收的模拟信号发送到模拟 - 数字转换器以对所接收的模拟信号进行采样 模拟信号并输出数字信号。 对数字信号执行子信道快速傅里叶变换（FFT），并且在设定的时间段内对子信道FFT bin幅度进行平均以确定接收信号的形状。 通过计算接收信号的形状的度量，以及计算一个以上的信号参考模式的度量，将接收信号的形状与一个或多个信号参考模式进行比较。 然后将所计算的度量与预定阈值进行比较，以确定在接收信号中感兴趣的信号的存在或不存在。
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公开(公告)号：US07808423B2
公开(公告)日：2010-10-05
申请号：US11696873
申请日：2007-04-05
CPC分类号： G01S7/285 , G01S13/18 , G01S13/882
摘要： A method for acquiring targets within a search area using an electronic device is disclosed. The method involves partitioning a first acquisition time period into a plurality of range gates, simultaneously positioning one or more of the range gates within the search area during a search mode, and transmitting an energy pulse train. Upon receipt of a reflection of the transmitted pulse train, the method records a signal level of the reflected energy pulse train within the first acquisition time period. Based on the recorded signal level, the method advances one or more of the range gates by a prescribed outbound movement increment until the signal level within at least one of the range gates is above a prescribed acquisition signal level threshold.
摘要翻译： 公开了一种使用电子设备在搜索区域内获取目标的方法。 该方法包括将第一采集时间段划分为多个范围门，同时在搜索模式期间将一个或多个范围门定位在搜索区域内，以及发射能量脉冲串。 在接收到所发送的脉冲串的反射时，该方法在第一采集时间段内记录反射能量脉冲串的信号电平。 基于所记录的信号电平，该方法通过规定的出站移动增量来推进一个或多个范围门，直到至少一个范围门内的信号电平高于规定的采集信号电平门限。
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公开(公告)号：US07714774B2
公开(公告)日：2010-05-11
申请号：US11851038
申请日：2007-09-06
申请人： Benjamin J. Winstead
发明人： Benjamin J. Winstead
IPC分类号： G01S13/00
CPC分类号： G01S7/2922 , G01S7/023 , G01S7/2923 , G01S13/882
摘要： A false lock filter circuit for a pulsed altimeter is provided. The circuit includes a low pass filter having a relatively low bandwidth (LBW LPF), a low pass filter having a relatively high bandwidth (HBW LPF) and a false lock controller. The LBW LPF has an input that is coupled to receive a detector output. The HBW LPF has an input that is coupled to receive the detector output. The false lock controller is coupled to receive outputs from the LBW LPF and HBW LPF. Moreover, the false lock controller is configured to sample an output of the HBW LPF and apply a statistical analysis on the samples to determine if a valid target has been detected.
摘要翻译： 提供了用于脉冲高度计的假锁滤波器电路。 电路包括具有相对低带宽（LBW LPF）的低通滤波器，具有相对高带宽的低通滤波器（HBW LPF）和假锁定控制器。 LBW LPF具有耦合以接收检测器输出的输入。 HBW LPF具有耦合以接收检测器输出的输入。 虚拟锁定控制器被耦合以接收来自LBW LPF和HBW LPF的输出。 此外，假锁控制器被配置为对HBW LPF的输出进行采样，并对样本应用统计分析，以确定是否检测到有效目标。
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公开(公告)号：US07714770B2
公开(公告)日：2010-05-11
申请号：US11778452
申请日：2007-07-16
申请人： Benjamin J. Winstead
发明人： Benjamin J. Winstead
IPC分类号： G01S13/00
CPC分类号： G01S7/354 , G01S7/34 , G01S13/882 , H04B1/10
摘要： A method and apparatus for dealing with noise spikes in a radar system is provided. The method includes monitoring a noise channel in the radar system. Controlling gain with a control loop based at least in part on the monitored noise channel and ignoring noise spikes detected in the noise channel when controlling gain with the control loop.
摘要翻译： 提供了一种用于处理雷达系统中的噪声尖峰的方法和装置。 该方法包括监测雷达系统中的噪声通道。 至少部分地基于被监控的噪声信道来控制增益，并且在控制环路控制增益时忽略噪声信道中检测到的噪声尖峰。
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5.发明申请METHOD AND SYSTEM FOR OBTAINING IN-PHASE AND QUADRATURE COMPONENTS OF A SIGNAL 有权用于获取信号的相间和相位分量的方法和系统公开(公告)号：US20090085798A1
公开(公告)日：2009-04-02
申请号：US11863487
申请日：2007-09-28
IPC分类号： G01S13/00
CPC分类号： G01S13/18 , G01S2007/2886
摘要： A method of obtaining in-phase and quadrature phase components for a narrowband signal is provided. The method includes digitally sampling a narrowband signal at a digital sampling rate to obtain a number of data points. The method subtracts a first portion of the data points corresponding to a first half of one period of the signal from a second portion of the data points corresponding to a second half of the one period of the signal to obtain a number of output data points which is less than the number of data points obtained from sampling the narrowband signal.
摘要翻译： 提供了一种获得窄带信号的同相和正交相分量的方法。 该方法包括以数字采样率数字采样窄带信号以获得多个数据点。 该方法从对应于信号的一个周期的后半部分的数据点的第二部分中减去对应于信号的一个周期的前半段的数据点的第一部分，以获得多个输出数据点， 小于从窄带信号采样获得的数据点的数量。
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公开(公告)号：US20090021419A1
公开(公告)日：2009-01-22
申请号：US11778452
申请日：2007-07-16
申请人： Benjamin J. Winstead
发明人： Benjamin J. Winstead
CPC分类号： G01S7/354 , G01S7/34 , G01S13/882 , H04B1/10
摘要： A method and apparatus for dealing with noise spikes in a radar system is provided. The method includes monitoring a noise channel in the radar system. Controlling gain with a control loop based at least in part on the monitored noise channel and ignoring noise spikes detected in the noise channel when controlling gain with the control loop.
摘要翻译： 提供了一种用于处理雷达系统中的噪声尖峰的方法和装置。 该方法包括监测雷达系统中的噪声通道。 至少部分地基于被监控的噪声信道来控制增益，并且在控制环路控制增益时忽略噪声信道中检测到的噪声尖峰。
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公开(公告)号：US20080246648A1
公开(公告)日：2008-10-09
申请号：US11696873
申请日：2007-04-05
IPC分类号： G01S13/00
CPC分类号： G01S7/285 , G01S13/18 , G01S13/882
摘要： A method for acquiring targets within a search area using an electronic device is disclosed. The method involves partitioning a first acquisition time period into a plurality of range gates, simultaneously positioning one or more of the range gates within the search area during a search mode, and transmitting an energy pulse train. Upon receipt of a reflection of the transmitted pulse train, the method records a signal level of the reflected energy pulse train within the first acquisition time period. Based on the recorded signal level, the method advances one or more of the range gates by a prescribed outbound movement increment until the signal level within at least one of the range gates is above a prescribed acquisition signal level threshold.
摘要翻译： 公开了一种使用电子设备在搜索区域内获取目标的方法。 该方法包括将第一采集时间段划分为多个范围门，同时在搜索模式期间将一个或多个范围门定位在搜索区域内，以及发射能量脉冲串。 在接收到所发送的脉冲串的反射时，该方法在第一采集时间段内记录反射能量脉冲串的信号电平。 基于所记录的信号电平，该方法通过规定的出站移动增量来推进一个或多个范围门，直到至少一个范围门内的信号电平高于规定的采集信号电平门限。
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公开(公告)号：US06753806B1
公开(公告)日：2004-06-22
申请号：US10459138
申请日：2003-06-11
IPC分类号： G01S740
CPC分类号： G01S13/53 , G01S7/288 , G01S7/292 , G01S13/882
摘要： A method for simulating a Doppler signal under stationary conditions is described. The method includes sampling a radar return signal at an integer multiple of the return signal frequency plus a fraction of the return signal period and generating a base band signal from the samples.
摘要翻译： 描述了在静止条件下模拟多普勒信号的方法。 该方法包括以返回信号频率的整数倍加上返回信号周期的一部分对雷达返回信号进行采样，并从样本产生基带信号。
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公开(公告)号：US20100302088A1
公开(公告)日：2010-12-02
申请号：US12476682
申请日：2009-06-02
IPC分类号： G01S13/08
CPC分类号： G01C5/005 , G01S13/585 , G01S13/60 , G01S13/70 , G01S13/882
摘要： Systems and methods for Doppler beam sharpening in a radar altimeter are provided. In one embodiment, a method comprises receiving a return signal at a radar altimeter receiver and applying a first gate to the return signal to select at least a first component of the return signal. Spectral analysis is performed on the first component of the return signal to generate a plurality of frequency bins, wherein each frequency bin is centered around a different frequency across a Doppler shift frequency spectrum for the first component of the return signal. The method further comprises tracking the first component of the return signal, selecting a first frequency bin of the plurality of frequency bins based on the Doppler shift frequency of the first component of the return signal, and outputting a portion of the first component of the return signal falling within the first frequency bin for further processing.
摘要翻译： 提供雷达高度计中多普勒波束锐化的系统和方法。 在一个实施例中，一种方法包括在雷达高度计接收器处接收返回信号，并向返回信号施加第一门以选择返回信号的至少第一分量。 对返回信号的第一分量执行频谱分析以产生多个频率仓，其中每个频率仓以用于返回信号的第一分量的多普勒频移频谱为中心。 该方法还包括跟踪返回信号的第一分量，基于返回信号的第一分量的多普勒频移选择多个频率仓的第一频率仓，并输出返回信号的第一分量的一部分 信号落在第一频率仓内，用于进一步处理。
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10.发明授权Methods and systems providing an adaptive threshold for a beam sharpened pulse radar 失效为光束锐化脉冲雷达提供自适应阈值的方法和系统公开(公告)号：US07652615B2
公开(公告)日：2010-01-26
申请号：US11420574
申请日：2006-05-26
IPC分类号： G01S13/00
CPC分类号： G01S13/882 , F42C13/042 , G01S13/60
摘要： A radar sensor is described that includes a radar transmitter, a radar receiver configured to receive reflected returns of signals output by the radar transmitter, and a signal processing unit configured to process signals received by the radar receiver. The signal processing unit includes a comparator, a first filter comprising an output coupled to a reference input of the comparator, and a second filter comprising an output coupled to a signal input of the comparator. The first and second filters are configured to receive a common input related to the reflected returns. The first filter is configured to have a time constant such that a rise time of the first filter output is faster than a rise time of the second filter output.
摘要翻译： 描述了雷达传感器，其包括雷达发射器，被配置为接收由雷达发射器输出的信号的反射返回的雷达接收器，以及被配置为处理由雷达接收器接收的信号的信号处理单元。 信号处理单元包括比较器，第一滤波器，包括耦合到比较器的参考输入端的输出端，第二滤波器包括耦合到比较器的信号输入端的输出端。 第一和第二滤波器被配置为接收与反射的返回相关的公共输入。 第一滤波器被配置为具有时间常数，使得第一滤波器输出的上升时间比第二滤波器输出的上升时间快。
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