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1.发明申请公开(公告)号：US20180206236A1
公开(公告)日：2018-07-19
申请号：US15918905
申请日：2018-03-12
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark , Daniel J. Baker , Johnathan R. W. Ammerman
IPC: H04W72/04 , H04B1/00 , H03M1/12 , G01R23/165 , G01R13/02
CPC classification number: H04W72/0453 , G01R13/0272 , G01R23/165 , H03M1/121 , H04B1/0003 , H04B1/0025
Abstract: Embodiments are described of devices and methods for processing a signal using a plurality of vector signal generators (VSGs). A digital signal may be provided to a plurality of signal paths, each of which may process a respective frequency band of the signal, the respective frequency bands having regions of overlap. The gain and phase of each signal path may be adjusted such that continuity of phase and magnitude are preserved through the regions of overlap. The adjustment of gain and phase may be accomplished by a complex multiply with a complex calibration constant. The calibration constant may be determined for each signal path by comparing the gain and phase of one or more calibration tones generated within each region of overlap. Each signal path may comprise a VSG to convert the respective signal to an analog signal, which may be combined to obtain a composite signal.
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2.发明授权Spectral stitching method to increase instantaneous bandwidth in vector signal analyzers 有权光谱拼接方法可增加矢量信号分析仪中的瞬时带宽公开(公告)号：US09548882B2
公开(公告)日：2017-01-17
申请号：US15072909
申请日：2016-03-17
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark , Daniel J. Baker , Johnathan R. W. Ammerman
IPC: H04L27/38 , H04W24/08 , H04B17/309 , H04B17/21 , H04L7/00 , H04W56/00 , H04W72/04 , H04B17/00 , H04B1/12
CPC classification number: H04L27/3827 , H04B1/12 , H04B17/00 , H04B17/0085 , H04B17/21 , H04B17/309 , H04L7/0087 , H04W24/08 , H04W56/003 , H04W72/044
Abstract: Various embodiments are described of devices and associated methods for processing a signal using a plurality of vector signal analyzers (VSAs). An input signal may be split and provided to a plurality of VSAs, each of which may process a respective frequency band of the signal, where the respective frequency bands have regions of overlap. Each VSA may adjust the gain and phase of its respective signal such that continuity of phase and magnitude is preserved through the regions of overlap. The correction of gain and phase may be accomplished by a complex multiply with a complex calibration constant. A complex calibration constant may be determined for each VSA by comparing the gain and phase of one or more calibration tones generated with each region of overlap, as measured by each of the VSAs.
Abstract translation: 描述了使用多个向量信号分析器（VSA）处理信号的设备和相关方法的各种实施例。 输入信号可以被分离并提供给多个VSA，每个VSA可以处理信号的相应频带，其中各个频带具有重叠的区域。 每个VSA可以调整其相应信号的增益和相位，使得通过重叠区域保持相位和幅度的连续性。 增益和相位的校正可以通过复数乘以复合校准常数来实现。 可以通过比较由每个VSA测量的每个重叠区域产生的一个或多个校准音调的增益和相位来为每个VSA确定复校正常数。
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公开(公告)号：US20160112887A1
公开(公告)日：2016-04-21
申请号：US14515144
申请日：2014-10-15
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark , Daniel J. Baker , Johnathan R. W. Ammerman
IPC: H04W24/08
CPC classification number: H04L27/3827 , H04B1/12 , H04B17/00 , H04B17/0085 , H04B17/21 , H04B17/309 , H04L7/0087 , H04W24/08 , H04W56/003 , H04W72/044
Abstract: Various embodiments are described of devices and associated methods for processing a signal using a plurality of vector signal analyzers (VSAs). An input signal may be split and provided to a plurality of VSAs, each of which may process a respective frequency band of the signal, where the respective frequency bands have regions of overlap. Each VSA may adjust the gain and phase of its respective signal such that continuity of phase and magnitude is preserved through the regions of overlap. The correction of gain and phase may be accomplished by a complex multiply with a complex calibration constant. A complex calibration constant may be determined for each VSA by comparing the gain and phase of one or more calibration tones generated with each region of overlap, as measured by each of the VSAs.
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4.发明申请Computing I/Q Impairments at System Output Based on I/Q Impairments at System Input 有权基于系统输入I / Q损失的系统输出计算I / Q损失公开(公告)号：US20140286382A1
公开(公告)日：2014-09-25
申请号：US14220284
申请日：2014-03-20
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark
IPC: H04B17/00
CPC classification number: H04L25/08 , H04B17/104 , H04B17/11 , H04B17/21 , H04B17/309 , H04B17/373 , H04B17/391 , H04L1/248
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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公开(公告)号：US20140241410A1
公开(公告)日：2014-08-28
申请号：US14186727
申请日：2014-02-21
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark
IPC: H04B1/12
CPC classification number: H04B1/123 , H04B17/21 , H04L27/364
Abstract: The first and second outputs of a signal generation system are coupled to the first and second inputs of a signal digitizing system via respective electrical conductors. A controller directs the generation system to generate a first calibration signal, and the digitizing system responsively captures a first set of vector samples. The conductors are then reconfigured so they connect the first and second outputs of the generation system respectively to the second and first inputs of the digitization system. The controller then directs the generation system to generate a second calibration signal, and the digitizing system responsively captures a second set of vector samples. The controller or other processing agent computes gain and/or phase impairments using the first and second vector sample sets. Digital filter parameters may be computed based on the computed impairment(s), and used to correct the impairment(s) of the generation system and/or the digitizing system.
Abstract translation: 信号发生系统的第一和第二输出通过相应的电导体耦合到信号数字化系统的第一和第二输入端。 控制器指示生成系统生成第一校准信号，并且数字化系统响应地捕获第一组向量样本。 然后重新配置导体，使得它们将生成系统的第一和第二输出分别连接到数字化系统的第二和第一输入端。 然后，控制器引导生成系统生成第二校准信号，并且数字化系统响应地捕获第二组矢量样本。 控制器或其他处理代理使用第一和第二向量样本集计算增益和/或相位损伤。 可以基于所计算的损伤来计算数字滤波器参数，并且用于校正发电系统和/或数字化系统的损害。
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Patent Agency Ranking
公开(公告)号：US20140204989A1
公开(公告)日：2014-07-24
申请号：US14220364
申请日：2014-03-20
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark , Christopher J. Behnke
IPC: H04B17/00
CPC classification number: H04B17/11 , H04B15/00 , H04B17/21 , H04B17/309 , H04B17/391 , H04L1/248 , H04L25/08
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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公开(公告)号：US20170131976A1
公开(公告)日：2017-05-11
申请号：US14937732
申请日：2015-11-10
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Julian G. Valdez , Taylor L. Riche , Neil S. Feiereisel , Robert E. Dye , Stephen R. Loftus-Mercer , Dustyn K. Blasig , Mary E. Fletcher , Brent C. Schwan , Stephen L. Dark
Abstract: System and method for creating a graphical program. A first replication structure may be included in a graphical program, where the first replication structure specifies replication of any graphical program code inside the first replication structure. First graphical program code may be included inside the first replication structure. An implementation of the graphical program may be automatically generated, including generating multiple instances of an implementation of the first graphical program code within the implementation of the graphical program. Executing the graphical program may include executing the multiple instances, e.g., concurrently and/or serially.
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公开(公告)号：US08938025B2
公开(公告)日：2015-01-20
申请号：US14198407
申请日：2014-03-05
Applicant: National Instruments Corporation
Inventor： Stephen L. Dark , Christopher J. Behnke
CPC classification number: H04B17/11 , H04B15/00 , H04B17/21 , H04B17/309 , H04B17/391 , H04L1/248 , H04L25/08
Abstract: Communication devices and associated methods for reducing I/Q impairments in signals used by the communication devices are described. A transmitter device may perform filtering (or matrix multiplication) on digital I and Q signals to pre-correct them before converting them into analog I and Q signals. The pre-correction may pre-compensate for I/Q impairments which have not been introduced yet, but which will subsequently be introduced during digital-to-analog conversion, I/Q modulation, or other processing that occurs to produce a transmission signal from the original digital I and Q signals. A receiver device may receive a transmission signal, produce digital I and Q signals from the received signal, and perform filtering on the digital I and Q signals to correct I/Q impairments at a plurality of frequency offsets.
Abstract translation: 描述用于减少由通信设备使用的信号中的I / Q损伤的通信设备和相关方法。 发射机设备可以对数字I和Q信号执行滤波（或矩阵乘法），以在将它们转换成模拟I和Q信号之前对其进行预校正。 预校正可以预补偿尚未引入的I / Q损伤，但是随后将在数模转换，I / Q调制或其它处理期间引入以产生来自 原来的数字I和Q信号。 接收机设备可以接收传输信号，从接收到的信号产生数字I和Q信号，并对数字I和Q信号进行滤波以校正多个频率偏移处的I / Q损伤。
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公开(公告)号：US08681846B2
公开(公告)日：2014-03-25
申请号：US13887153
申请日：2013-05-03
Applicant: National Instruments Corporation
Inventor： Stephen L. Dark , Christopher J. Behnke
CPC classification number: H04B17/11 , H04B15/00 , H04B17/21 , H04B17/309 , H04B17/391 , H04L1/248 , H04L25/08
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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公开(公告)号：US08681845B2
公开(公告)日：2014-03-25
申请号：US13887109
申请日：2013-05-03
Applicant: National Instruments Corporation
Inventor： Stephen L. Dark , Christopher J. Behnke
CPC classification number: H04B17/11 , H04B15/00 , H04B17/21 , H04B17/309 , H04B17/391 , H04L1/248 , H04L25/08
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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