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公开(公告)号：US09759808B2
公开(公告)日：2017-09-12
申请号：US14939703
申请日：2015-11-12
CPC分类号： G01S7/352 , G01S7/285 , G01S13/282 , G01S13/343 , G01S13/931
摘要： A method of radar signal processing includes providing an analog front end (AFE) including an amplifier coupled between an antenna and an ADC in a receive path, where an ADC output is coupled to an input of an elastic ADC buffer (elastic buffer) including a divided memory with for writing samples from the ADC (samples) while reading earlier written samples to a first signal processor by a high speed interface. A transmit path includes at least one power amplifier provided by the AFE coupled to drive an antenna. A Greatest Common Divisor (GCD) is determined across all chirps in a radar frame programmed to be used. For each frame a sample size for the elastic buffer is dynamically controlled constant to be equal to the GCD for reading samples from one memory block and writing samples to another memory block throughout all chirps in the frame.
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公开(公告)号：US09612147B2
公开(公告)日：2017-04-04
申请号：US14176450
申请日：2014-02-10
发明人： Christer Frovik
摘要： The present invention relates to a radar level gauge system comprising a first receiver branch for converting a reflection signal to a first digital measurement signal, and a second receiver branch configured to convert the reflection signal to a second digital measurement signal. The first receiver branch modulates an amplitude of the first measurement signal according to a first gain function, and the second receiver branch modulates an amplitude of the second measurement signal according to a second gain function different from the first gain function. The radar level gauge system further comprises processing circuitry configured to determine the filling level based on the first measurement signal and the second measurement signal.
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公开(公告)号：US09529074B2
公开(公告)日：2016-12-27
申请号：US14051069
申请日：2013-10-10
申请人： DIZIC CO., LTD.
发明人： Daniel Mastio , Zbigniew Ianelli
摘要： A ranging method, executed in a ranging device, comprising steps of: obtaining a trip time of a received wireless signal, wherein the received wireless signal is a wireless signal from an object; calculating a statistical value of a rising time of the received wireless signal; correcting the trip time according to the statistical value of the rising time; and estimating a distance between the object and the ranging device according to the corrected trip time.
摘要翻译： 一种在测距装置中执行的测距方法，包括以下步骤：获得所接收的无线信号的跳闸时间，其中所接收的无线信号是来自对象的无线信号; 计算接收到的无线信号的上升时间的统计值; 根据上升时间的统计值修正行程时间; 以及根据校正的跳闸时间估计对象和测距装置之间的距离。
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公开(公告)号：US09507017B2
公开(公告)日：2016-11-29
申请号：US13833399
申请日：2013-03-15
申请人： SRC, Inc.
发明人： Daniel R. Culkin
CPC分类号： G01S13/325 , G01S7/28 , G01S7/285 , G01S7/32 , G01S13/003 , G01S13/28 , G01S13/581
摘要： A method for the simultaneous multi-frequency signal processing within a single receiver is presented. The pulse compression or filtering method samples the received signal at a data rate commensurate with the maximum frequency separation of waveforms at separate frequencies being received, but the compression calculations are only performed at a rate commensurate with the bandwidth of each individual transmit waveform set. The method reduces the processor requirements for extracting all available information from these signals.
摘要翻译： 提出了一种在单个接收机内同时进行多频信号处理的方法。 脉冲压缩或滤波方法以接收到的不同频率的波形的最大频率间隔相应的数据速率对接收信号进行采样，但压缩计算仅以与各个发射波形组的带宽相称的速率进行。 该方法降低了从这些信号中提取所有可用信息的处理器要求。
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公开(公告)号：US09500740B2
公开(公告)日：2016-11-22
申请号：US14348241
申请日：2011-10-27
申请人： Saverio Trotta
发明人： Saverio Trotta
IPC分类号： G01S7/282 , G01S7/285 , H03F1/02 , H03F1/56 , H03F3/189 , H03F3/195 , H03F3/45 , H03F3/60 , H03D7/14 , H03D7/16 , H01Q3/34 , H04B1/16 , G01S7/00 , G01S13/00
CPC分类号： G01S7/282 , G01S7/285 , H01Q3/34 , H03D7/1433 , H03D7/1458 , H03D7/165 , H03F1/0205 , H03F1/56 , H03F3/189 , H03F3/195 , H03F3/45085 , H03F3/60 , H03F2200/06 , H03F2200/09 , H03F2200/216 , H03F2200/222 , H03F2200/255 , H03F2200/294 , H03F2200/336 , H03F2200/411 , H03F2200/423 , H03F2200/555 , H03F2203/45544 , H03F2203/45554 , H03F2203/45594 , H03F2203/45596 , H03F2203/45622 , H03F2203/45631 , H04B1/16
摘要： A receiver circuit, comprises an input balun circuit comprising a balanced balun output and being capable of receiving RF signals, an input amplification circuit comprising a balanced amplifier input and a balanced amplifier output, a single balanced in-phase mixing circuit comprising a first unbalanced RF mixer input and a balanced in-phase mixing frequency input, and a single balanced quadrature mixing circuit comprising a second unbalanced RF mixer input and a balanced quadrature mixing frequency input. The balanced amplifier input is connected to the balanced balun output, a first terminal of the balanced amplifier output is connected to provide an amplified RF signal to the first unbalanced RF mixer input and a second terminal of the balanced amplifier output is connected to provide a phase-shifted amplified RF signal to the second unbalanced RF mixer input.
摘要翻译： 一种接收器电路，包括：输入平衡 - 不平衡变换电路，包括平衡不平衡变换器输出并能够接收RF信号;输入放大电路，包括平衡放大器输入和平衡放大器输出;单个平衡同相混合电路，包括第一不平衡RF 混频器输入和平衡同相混频输入，以及包括第二不平衡RF混频器输入和平衡正交混频输入的单个平衡正交混合电路。 平衡放大器输入端连接到平衡不平衡变压器输出，平衡放大器输出端的第一端连接到放大的RF信号到第一个不平衡RF混频器输入，平衡放大器输出的第二端连接以提供相位 转换放大的RF信号到第二不平衡RF混频器输入。
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46.发明授权公开(公告)号：US09494682B2
公开(公告)日：2016-11-15
申请号：US14411562
申请日：2014-04-08
申请人： WEATHERLINK CO., LTD
发明人： Jeongho Choi
CPC分类号： G01S13/95 , G01S7/285 , G01S13/282 , Y02A90/18
摘要： Disclosed is a radar weather data signal processing module comprising: a pulse compression unit for pulse-compressing a received weather signal; a correlation coefficient calculation unit for calculating a correlation coefficient on the basis of the pulse-compressed weather signal; and a weather variable calculation unit for calculating a weather variable on the basis of the calculated correlation coefficient.
摘要翻译： 公开了一种雷达天气数据信号处理模块，包括：脉冲压缩单元，用于脉冲压缩接收的天气信号; 相关系数计算单元，用于基于脉冲压缩天气信号计算相关系数; 以及天气变量计算单元，用于基于所计算的相关系数来计算天气变化。
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47.发明申请公开(公告)号：US20160223665A1
公开(公告)日：2016-08-04
申请号：US14613879
申请日：2015-02-04
发明人： Benjamin J. Winstead
CPC分类号： G01S13/882 , G01S7/285 , G01S13/18 , G01S13/582 , G01S13/585 , G01S13/605
摘要： Systems and methods for measuring velocity with a radar altimeter are provided. In at least one embodiment a method for measuring velocity magnitude of a platform in relation to a surface comprises transmitting a radar beam, wherein the radar beam is aimed toward a surface; receiving a plurality of reflected signals, wherein the plurality of reflected signals correspond to portions of the transmitted radar beam that are reflected by a plurality of portions of the surface; and applying Doppler filtering to the plurality of signals to form at least one Doppler beam. The method also comprises identifying range measurements within each Doppler beam in the at least one Doppler beam; and calculating the velocity magnitude based on the range measurements of the at least one Doppler beam.
摘要翻译： 提供了用雷达高度计测量速度的系统和方法。 在至少一个实施例中，用于测量平台相对于表面的速度幅度的方法包括发射雷达波束，其中所述雷达波束瞄准表面; 接收多个反射信号，其中所述多个反射信号对应于由所述表面的多个部分反射的所述透射雷达光束的部分; 以及对所述多个信号应用多普勒滤波以形成至少一个多普勒波束。 所述方法还包括在至少一个多普勒波束中的每个多普勒波束内识别距离测量; 以及基于所述至少一个多普勒波束的距离测量来计算所述速度幅度。
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公开(公告)号：US09405001B2
公开(公告)日：2016-08-02
申请号：US14874007
申请日：2015-10-02
CPC分类号： G01S7/288 , G01S7/285 , G01S7/2922 , G01S13/10
摘要： Described are radar systems and methods. A transmit pulse is generated by the radar system. A first portion of the transmit pulse is processed by the radar system to form transmit pulse data. A second portion of the transmit pulse is directed by the radar system into a monitored volume. A return signal is received by the radar system, the return signal at least partially comprising a portion of the second portion of the transmit pulse reflected by one or more objects in the monitored volume. The return signal is processed, by the radar system, to form return signal data.
摘要翻译： 描述的是雷达系统和方法。 发射脉冲由雷达系统产生。 发射脉冲的第一部分由雷达系统处理以形成发射脉冲数据。 发射脉冲的第二部分由雷达系统引导到监测的体积中。 返回信号由雷达系统接收，返回信号至少部分地包括被监测体积中一个或多个物体反射的发射脉冲的第二部分的一部分。 由雷达系统处理返回信号以形成返回信号数据。
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公开(公告)号：US09329073B2
公开(公告)日：2016-05-03
申请号：US14099105
申请日：2013-12-06
发明人： Bin Sai
IPC分类号： G01F23/284 , G01S7/34 , G01S13/88 , G01S7/285 , G01S13/10 , G01S13/26 , G01S13/28 , G01S13/02 , G01S7/52 , G01S7/40
CPC分类号： G01F23/284 , G01S7/285 , G01S7/34 , G01S7/4008 , G01S7/52033 , G01S13/0209 , G01S13/106 , G01S13/26 , G01S13/282 , G01S13/88 , G01S2007/4013
摘要： A pulsed radar method of sensing or measuring a product material in a storage tank. A plurality of waveform types are automatically selected based on a power limitation. The pulsed radar signal is transmitted by a programmable transmitter to the product material, wherein the pulsed radar signal is reflected or scattered by the product material to provide a radar signal during an interval of time including a target signal. An initial gain or attenuation is automatically set for a programmable receiver. The programmable receiver receives the radar signal including the target signal during the interval of time, and the target signal is signal processed using a lower attenuation setting as compared to the initial gain or attenuation to determine at least one parameter associated with the product material. The transmitted and received radar signal can also be adjusted according to the measured SNR.
摘要翻译： 一种用于感测或测量储罐中的产品材料的脉冲雷达方法。 基于功率限制自动选择多个波形类型。 脉冲雷达信号由可编程发射器传输到产品材料，其中脉冲雷达信号由产品材料反射或散射，以在包括目标信号的时间间隔期间提供雷达信号。 自动设置可编程接收器的初始增益或衰减。 可编程接收器在时间间隔期间接收包括目标信号的雷达信号，并且使用与初始增益或衰减相比较的较低衰减设置对目标信号进行信号处理，以确定与产品材料相关联的至少一个参数。 发射和接收的雷达信号也可以根据测得的SNR进行调整。
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公开(公告)号：US20150369903A1
公开(公告)日：2015-12-24
申请号：US14767295
申请日：2013-02-12
申请人： Akbar GHAZINOUR , Bernhard DEHLINK
发明人： AKBAR GHAZINOUR , BERNHARD DEHLINK
IPC分类号： G01S7/285
CPC分类号： G01S7/285 , G01S2007/2886
摘要： An active I/Q generator circuit comprises an input node for receiving a reference oscillation signal. The circuit has an I-output and a Q-output for respectively outputting an I-signal and a Q-signal. A first active component is electrically coupled to the input node and arranged to amplify the reference oscillation signal and to output an amplified reference oscillation signal. A second active component is electrically coupled to the first active component to receive the amplified reference oscillation signal. The second active component is arranged to generate, based on the amplified reference oscillation signal, an in-phase signal and a, with respect to the in-phase signal, phase shifted signal, the second active component electrically coupled to the in-phase signal output for providing the in-phase signal and electrically coupled to the quadrature-phase output for providing the phase-shifted signal.
摘要翻译： 有源I / Q发生器电路包括用于接收参考振荡信号的输入节点。 电路具有分别输出I信号和Q信号的I输出和Q输出。 第一有源分量电耦合到输入节点并且被布置成放大参考振荡信号并输出放大的参考振荡信号。 第二有源分量电耦合到第一有源分量以接收放大的参考振荡信号。 第二有源分量被布置成基于放大的参考振荡信号产生同相信号，并且相对于同相信号产生相移信号，第二有源分量电耦合到同相信号 输出，用于提供同相信号并电耦合到正交相输出以提供相移信号。
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