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1. 发明申请

US20110128998A1 Software Based Spread Spectrum Signal Processing 有权
标题翻译：基于软件的扩频信号处理
公开(公告)号：US20110128998A1
公开(公告)日：2011-06-02
申请号：US12939072
申请日：2010-11-03
申请人： Christian Stahlberg , Per-Ludvig Normark
发明人： Christian Stahlberg , Per-Ludvig Normark
IPC分类号： H04B1/00
CPC分类号： H04L65/607 , H04B1/707 , H04B1/7077 , H04B1/7095 , H04B2201/7071 , H04B2201/70715
摘要： A digital processing unit for use in a spread spectrum signal receiver, the digital processing unit being adapted to receive an incoming stream of data samples and in response thereto produce a decoded signal, the digital processing unit comprising a correlation module adapted to correlate data blocks formed from the incoming stream of data samples with a local code replica segment to produce a first number of intermediate accumulation results and an aggregation module adapted to receive the first number of intermediate accumulation results and to combine the first number of consecutive ones of said intermediate accumulation results to form a target number of aggregated accumulation results, said target number being less than or equal to the first number.
摘要翻译：一种用于扩展频谱信号接收机的数字处理单元，所述数字处理单元适于接收数据样本的输入流，并且响应于此产生解码信号，所述数字处理单元包括相关模块，所述相关模块适于将形成的数据块相关联从具有本地代码副本段的输入数据样本流中产生第一数量的中间累积结果，以及聚合模块，其适于接收第一数量的中间累积结果，并将所述中间累积结果的第一数量的连续的一个形成聚合累积结果的目标数，所述目标数小于或等于第一个数。

2. 发明申请

US20120169536A1 GNSS RECEIVER DESIGN TESTING 有权
标题翻译： GNSS接收机设计测试
公开(公告)号：US20120169536A1
公开(公告)日：2012-07-05
申请号：US13255865
申请日：2009-09-24
申请人： Alexander Mitelman , Robin Hakanson , David Karlsson , Fredrik Lindstrom , Thomas Renstrom , Christian Stahlberg , James Burgess Tidd
发明人： Alexander Mitelman , Robin Hakanson , David Karlsson , Fredrik Lindstrom , Thomas Renstrom , Christian Stahlberg , James Burgess Tidd
IPC分类号： G01S19/23
CPC分类号： G01S19/23 , G01S19/13 , G01S19/26 , H04B17/27
摘要： A GNSS receiver design is tested, which design includes software for generating position/time related data (DPT) based on raw digital data (dRAW) when the software is executed in a processing unit of the receiver. GNSS signals (SRF) are received via a radio frequency input device while moving the radio frequency input device along a route trajectory. The received GNSS signals (SRF) are fed to a radio-frequency front end of a representative example of a receiver unit built according to the design to be tested. The radio-frequency front end produces raw digital data (dRAW) representing the received GNSS signals (SRF), and the raw digital data (dRAW) are stored in a primary data storage as a source file (Fsc). The source file (Fsc) is read from the primary data storage, and the source file (Fsc) is processed by means of the software to generate at least one set of position/time related data (DPT). Each set of position/time related data (DPT) is stored to a respective result file (Fres), and the result file(s) (Fres) is/are evaluated against reference data (Dref) to determine the performance of the design.
摘要翻译：测试了GNSS接收机设计，该设计包括当在接收机的处理单元中执行软件时，基于原始数字数据（dRAW）产生位置/时间相关数据（DPT）的软件。在沿着路线轨迹移动射频输入装置的同时，经由射频输入装置接收GNSS信号（SRF）。接收的GNSS信号（SRF）被馈送到根据待测设计构建的接收机单元的代表性示例的射频前端。射频前端产生表示接收到的GNSS信号（SRF）的原始数字数据（dRAW），原始数字数据（dRAW）作为源文件（Fsc）存储在主数据存储器中。从主数据存储器读取源文件（Fsc），并通过软件处理源文件（Fsc）以生成至少一组位置/时间相关数据（DPT）。将每组位置/时间相关数据（DPT）存储到相应的结果文件（Fres）中，并根据参考数据（Dref）评估结果文件（Fres）以确定设计的性能。

3. 发明授权

US08180000B2 GNSS receiver 有权
标题翻译： GNSS接收机
公开(公告)号：US08180000B2
公开(公告)日：2012-05-15
申请号：US12663620
申请日：2007-06-12
申请人： Per-Ludvig Normark , Alexander Mitelman
发明人： Per-Ludvig Normark , Alexander Mitelman
IPC分类号： H04L27/06 , H03D1/00
CPC分类号： G01S19/28
摘要： A GNSS receiver including a processing unit adapted to process radio signals transmitted from an active set of signal sources and based thereon produce position/time related data. The signals of the active set are processed in parallel with respect to a real-time signal data rate of the signals by a respective tracking channel resource allocated for each signal source. The processing unit also has a monitoring channel resource adapted to process radio signals transmitted from each of at least two signal sources in an additional set of signal sources different from the signal sources in the active set. The processing unit is adapted to process the radio signals of the additional set according to a cyclic processing sequence such that the signals from any of the signal sources in the additional set can be included into a navigation solution without delay.
摘要翻译：一种GNSS接收机，包括适于处理从一组有源信号源发射的无线电信号的处理单元，并基于此产生位置/时间相关数据。通过为每个信号源分配的相应跟踪信道资源，相对于信号的实时信号数据速率并行处理有源集合的信号。处理单元还具有适于处理从至少两个信号源中的每个信号源发送的不同于有源集合中的信号源的附加信号源组的监测信道资源。处理单元适于根据循环处理序列处理附加集合的无线电信号，使得来自附加集合中的任何信号源的信号可以毫无延迟地包括在导航解决方案中。

4. 发明授权

US08428097B2 Power efficient software receiver for spread spectrum signals 失效
标题翻译：功率有效的软件接收机用于扩频信号
公开(公告)号：US08428097B2
公开(公告)日：2013-04-23
申请号：US12088055
申请日：2005-09-29
申请人： Per-Ludvig Normark , Christian Ståhlberg
发明人： Per-Ludvig Normark , Christian Ståhlberg
IPC分类号： H04B1/00
CPC分类号： G01S19/37 , G01S19/34
摘要： The present invention relates to reception and processing of spread spectrum signals to produce position/time related data. A proposed receiver includes a radio signal processing unit, which is at least partly implemented in software running on a microprocessor. The processor is also adapted to effect at least one separate software-controlled function. The receiver is adapted to operate the radio signal processing unit on at least two processing intensity levels each with different processing times. Thereby, when the radio signal processing unit operates on a low processing intensity level, a first amount of processing capacity is available for the at least one separate software-controlled function; and when the radio processing unit operates on a high processing intensity level, a second amount of processing capacity is available for the at least one separate software-controlled function. When the processor's over-all processing capacity is constant, the second amount is smaller than the first amount.
摘要翻译：本发明涉及扩频信号的接收和处理，以产生位置/时间相关数据。所提出的接收机包括无线电信号处理单元，其至少部分地以在微处理器上运行的软件实现。该处理器还适于影响至少一个单独的软件控制功能。接收机适于以至少两个具有不同处理时间的处理强度级别操作无线电信号处理单元。因此，当无线电信号处理单元以低处理强度级别操作时，第一数量的处理能力可用于至少一个单独的软件控制功能; 并且当所述无线电处理单元以高处理强度级别操作时，所述至少一个单独的软件控制功能的第二数量的处理能力是可用的。当处理器的全部处理能力不变时，第二个数量小于第一个数量。

5. 发明授权

US07848217B2 Software based spread spectrum signal processing 有权
标题翻译：基于软件的扩频信号处理
公开(公告)号：US07848217B2
公开(公告)日：2010-12-07
申请号：US11378663
申请日：2006-03-17
申请人： Christian Stahlberg , Per-Ludvig Normark
发明人： Christian Stahlberg , Per-Ludvig Normark
IPC分类号： H04J11/00
CPC分类号： H04L65/607 , H04B1/707 , H04B1/7077 , H04B1/7095 , H04B2201/7071 , H04B2201/70715
摘要： A software correlator comprising: a partitioning module adapted to divide a number of the received data samples into a first number of data blocks; a first correlation module adapted to correlate each of the data blocks with a respective local code replica segment to produce a first number of intermediate accumulation results; an aggregation module adapted to combine a number of consecutive results of the intermediate accumulation results into a target number of aggregated accumulation results, the target number expresses a number of discrete carrier values in a carrier vector that represents a Doppler shift of the at least one spread spectrum source signal relative to a downconverting frequency for this signal; and a second correlation module adapted to correlate the aggregated accumulation results with the carrier vector to produce the decoded signal, which is compensated for the Doppler shift relative to the downconverting frequency.
摘要翻译：一种软件相关器，包括：划分模块，适于将多个所接收的数据样本分成第一数量的数据块; 第一相关模块，适于将每个数据块与相应的本地代码副本段相关联，以产生第一数量的中间累积结果; 聚合模块，其适于将所述中间累积结果的多个连续结果组合成目标数量的聚合累积结果，所述目标数量表示载波矢量中的多个离散载波值，所述载波矢量表示所述至少一个扩频频谱源信号相对于该信号的下变频频率; 以及第二相关模块，其适于将所述聚合累积结果与所述载波矢量相关联，以产生所述解码信号，所述解码信号相对于所述下变频器被补偿多普勒频移。

6. 发明授权

US08270529B2 Software-based spread spectrum signal processing 有权
标题翻译：基于软件的扩频信号处理
公开(公告)号：US08270529B2
公开(公告)日：2012-09-18
申请号：US12303529
申请日：2006-06-22
申请人： Alexander Mitelman , Per-Ludvig Normark , Christian Stahlberg
发明人： Alexander Mitelman , Per-Ludvig Normark , Christian Stahlberg
IPC分类号： H04K1/02 , H04L25/03 , H04L25/49
CPC分类号： H04B1/707 , G01S19/24 , G01S19/37 , G06F9/505 , H04B2201/70707 , H04B2201/7071 , H04B2201/70715 , Y02D10/22
摘要： A proposed data processing device includes at least two processor units, which each is adapted to process digitized precorrelation navigation satellite signal data as well as to process alternative data and/or signals relating to at least one function being uncorrelated with the satellite signal data. The device includes at least one data buffer adapted to store data sets, where each set includes a number of instances of the satellite signal data. A control module in the device controls execution of a processing job with respect to a stored data set by allocating individual processing tasks to at least one of the at least two processor units based on a current processing load on each processor unit.
摘要翻译：所提出的数据处理装置包括至少两个处理器单元，每个处理器单元适于处理数字化的预相关导航卫星信号数据，以及处理与至少一个与卫星信号数据不相关的功能相关的备选数据和/或信号。该设备包括适于存储数据集的至少一个数据缓冲器，其中每个集合包括卫星信号数据的多个实例。设备中的控制模块通过基于每个处理器单元上的当前处理负载将各个处理任务分配给至少两个处理器单元中的至少一个来控制对存储的数据集的处理作业的执行。

7. 发明授权

US07864109B2 Method and spread spectrum software receiver for satellite navigation 有权
标题翻译：卫星导航方法和扩频软件接收机
公开(公告)号：US07864109B2
公开(公告)日：2011-01-04
申请号：US12095421
申请日：2005-11-29
申请人： Per-Ludvig Normark , Alexander Michael Mitelman
发明人： Per-Ludvig Normark , Alexander Michael Mitelman
IPC分类号： G01S19/34
CPC分类号： G01S19/21 , G01S19/28 , G01S19/33 , G01S19/34 , G01S19/37
摘要： A spread spectrum signal receiver includes a radio signal processing unit, which is at least partly implemented in software running on a processor. The processing unit is adapted to estimate a respective processing demand required to produce position/time related data based on each subset of a number of candidate subsets of signal sources among a group of potential signal sources. Each candidate subset contains at least a minimum number of signal sources, which is necessary to produce the position/time related data of a desired quality. The processing unit is adapted to select a set of preferred signal sources from the group of potential signal sources based on a candidate subset, which is associated with a lowest estimated processing demand during a subsequent receiver operating period. Then, the receiver receives spread spectrum signals from the selected set of signal sources, and based on the received signals produces position/time related data.
摘要翻译：扩频信号接收机包括无线电信号处理单元，其至少部分地以在处理器上运行的软件实现。处理单元适于基于一组潜在信号源中的多个信号源的候选子集的每个子集来估计产生位置/时间相关数据所需的相应处理需求。每个候选子集包含至少最小数量的信号源，这是产生所需质量的位置/时间相关数据所必需的。所述处理单元适于基于候选子集从所述潜在信号源组中选择一组优选信号源，所述候选子集在随后的接收器操作周期期间与最低估计的处理需求相关联。然后，接收机从所选择的信号源组接收扩频信号，并且基于接收到的信号产生位置/时间相关数据。

8. 发明授权

US07729450B2 Spread spectrum signal receiver 有权
标题翻译：扩频信号接收机
公开(公告)号：US07729450B2
公开(公告)日：2010-06-01
申请号：US11288638
申请日：2005-11-28
申请人： Jonas Paul Thor , Per-Ludvig Normark
发明人： Jonas Paul Thor , Per-Ludvig Normark
IPC分类号： H04L27/00
CPC分类号： H04B1/707 , G01S19/37 , H04B2201/70715
摘要： A proposed spread spectrum signal receiver includes a radio front-end unit and a processing unit. The radio front-end unit, in turn, has an antenna, a digitizing circuit and a primary buffer unit. The antenna is adapted to receive radio signals (SHF) from a plurality of signal sources, and the digitizing circuit is adapted to downconvert and filter the received signals (SHF), and generate sample values (SBP-D) thereof. The primary buffer unit is adapted to temporarily store the sample values (SBP-D) from the digitizing circuit and allow the processing unit to read out a first set of stored sample values (SBP-D) contemporaneously with the storing of a second set of sample values (SBP-D) in the primary buffer unit. The processing unit is adapted to receive the sample values (SBP-D) from the primary buffer unit, and based thereon, produce position/time related data (DPT).
摘要翻译：所提出的扩频信号接收机包括无线电前端单元和处理单元。无线电前端单元又具有天线，数字化电路和主缓冲单元。该天线适于从多个信号源接收无线电信号（SHF），数字化电路适于对接收信号（SHF）进行下变频和滤波，并产生其采样值（SBP-D）。主缓冲单元适于临时存储来自数字化电路的样本值（SBP-D），并且允许处理单元与存储第二组存储的样本值（SBP-D）同时读出第一组存储的采样值主缓冲单元中的采样值（SBP-D）。处理单元适于从主缓冲单元接收样本值（SBP-D），并且基于此产生位置/时间相关数据（DPT）。

9. 发明申请

US20080291979A1 Method and Spread Spectrum Software Receiver for Satellite Navigation 有权
标题翻译：卫星导航方法和扩频软件接收机
公开(公告)号：US20080291979A1
公开(公告)日：2008-11-27
申请号：US12095421
申请日：2005-11-29
申请人： Per-Ludvig Normark , Alexander Michael Mitelman
发明人： Per-Ludvig Normark , Alexander Michael Mitelman
IPC分类号： G01S1/00
CPC分类号： G01S19/21 , G01S19/28 , G01S19/33 , G01S19/34 , G01S19/37
摘要： A spread spectrum signal receiver includes a radio signal processing unit, which is at least partly implemented in software running on a processor. The processing unit is adapted to estimate a respective processing demand required to produce position/time related data based on each subset of a number of candidate subsets of signal sources among a group of potential signal sources. Each candidate subset contains at least a minimum number of signal sources, which is necessary to produce the position/time related data of a desired quality. The processing unit is adapted to select a set of preferred signal sources from the group of potential signal sources based on a candidate subset, which is associated with a lowest estimated processing demand during a subsequent receiver operating period. Then, the receiver receives spread spectrum signals from the selected set of signal sources, and based on the received signals produces position/time related data.
摘要翻译：扩频信号接收机包括无线电信号处理单元，其至少部分地以在处理器上运行的软件实现。处理单元适于基于一组潜在信号源中的多个信号源的候选子集的每个子集来估计产生位置/时间相关数据所需的相应处理需求。每个候选子集包含至少最小数量的信号源，这是产生所需质量的位置/时间相关数据所必需的。所述处理单元适于基于候选子集从所述潜在信号源组中选择一组优选信号源，所述候选子集在随后的接收器操作周期期间与最低估计的处理需求相关联。然后，接收机从所选择的信号源组接收扩频信号，并且基于接收到的信号产生位置/时间相关数据。

10. 发明授权

US08811143B2 Software based spread spectrum signal processing 有权
标题翻译：基于软件的扩频信号处理
公开(公告)号：US08811143B2
公开(公告)日：2014-08-19
申请号：US12939072
申请日：2010-11-03
申请人： Christian Stahlberg , Per-Ludvig Normark
发明人： Christian Stahlberg , Per-Ludvig Normark
IPC分类号： H04J11/00 , H04B1/7077 , H04B1/707 , H04L29/06 , H04B1/7095
CPC分类号： H04L65/607 , H04B1/707 , H04B1/7077 , H04B1/7095 , H04B2201/7071 , H04B2201/70715
摘要： A digital processing unit for use in a spread spectrum signal receiver, the digital processing unit being adapted to receive an incoming stream of data samples and in response thereto produce a decoded signal, the digital processing unit comprising a correlation module adapted to correlate data blocks formed from the incoming stream of data samples with a local code replica segment to produce a first number of intermediate accumulation results and an aggregation module adapted to receive the first number of intermediate accumulation results and to combine the first number of consecutive ones of said intermediate accumulation results to form a target number of aggregated accumulation results, said target number being less than or equal to the first number.
摘要翻译：一种用于扩展频谱信号接收机的数字处理单元，所述数字处理单元适于接收数据样本的输入流，并且响应于此产生解码信号，所述数字处理单元包括相关模块，所述相关模块适于将形成的数据块相关联从具有本地代码副本段的输入数据样本流中产生第一数量的中间累积结果，以及聚合模块，其适于接收第一数量的中间累积结果，并将所述中间累积结果的第一数量的连续的一个形成聚合累积结果的目标数，所述目标数小于或等于第一个数。

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