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1. 发明申请

US20120188124A1 GNSS RECEIVER AND OPERATING METHOD 审中-公开
公开(公告)号：US20120188124A1
公开(公告)日：2012-07-26
申请号：US13322865
申请日：2009-06-29
申请人： Martin Borjesson Reidevall , Mats Robin Hakanson , Alexander Michael Mitelman
发明人： Martin Borjesson Reidevall , Mats Robin Hakanson , Alexander Michael Mitelman
IPC分类号： G01S19/28
CPC分类号： G01S19/28 , G01S19/22 , G01S19/258
摘要： A GNSS receiver (100) receives radio signals (S(SV)) transmitted from an active set of signal sources (SV1, SV2, SV3, SV5) and based thereon produces position/time related data (DPT). The receiver (100) has a tracking channel resource for each signal source (SV1, SV2, SV3, SV5) in the active set, and the tracking channel resources process the radio signals (S(SV)) in parallel with respect to a real-time signal data rate of the signals. The receiver (100) also includes a signal-source database (140), a signal-masking database (150) and a control unit (130). The signal-source database (140) describes the movements of the signal sources (SV1, SV2, SV3, SV4, SV5) over time relative to a given reference frame, and the signal-masking database (150) reflects, for positions (P) within a predefined geographic area, visibility/blockage to the sky with respect to a direct line of sight in terms of spatial sectors (M1(P), M2(P) M3(P)). The control unit (130) derives data describing a current position/time (PTR(t)) and a current velocity vector (VR(t)) for the receiver (100) based on the position/time related data (DPT); and derives an estimated visibility of the signal sources (SV1, SV2, SV3, SV5) in the active set at a second position/time (PTR(t+Δt)) representing an expected future position/time for the receiver (100) based on the signal-source and signal-masking databases (140; 150). If at least one signal source (SV1) in the active set is estimated not to be visible at the second position/time (PTR(t+Δt)), the control unit (130) initiates a modification of the active set aiming at replacing the at least one non-visible signal source (SV1) with at least one signal source (SV4) which, based on the signal-source and signal-masking databases (140; 150), is estimated to be visible at the second position/time (PTR(t+Δt)).

2. 发明授权

US09360558B2 GNSS receiver design testing 有权
标题翻译： GNSS接收机设计测试
公开(公告)号：US09360558B2
公开(公告)日：2016-06-07
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 , H04B17/27 , G01S19/41 , G01S19/35 , G01S19/13 , G01S19/47 , H04B17/00 , G01S19/26
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）被馈送到根据待测试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。

4. 发明申请

US20100013830A1 Processing Of Signals From Global Navigation Satellite Systems By A Graphics Processor 审中-公开
标题翻译：由图形处理器处理来自全球导航卫星系统的信号
公开(公告)号：US20100013830A1
公开(公告)日：2010-01-21
申请号：US12376115
申请日：2006-09-08
申请人： Mats Robin Hakanson , Alexander Mitelman , Christian Stahlberg
发明人： Mats Robin Hakanson , Alexander Mitelman , Christian Stahlberg
IPC分类号： G06T15/00 , G01S1/00
CPC分类号： G06T15/005 , G01S19/37
摘要： The programmable graphics processor processing a signal from a global navigation satellite system (“GNSS”); has a rasterizer unit, a pixel shader unit and a memory unit. GNSS satellite, received signal converted into a digitized form of the received signal, and transformed by a programmable graphics processor, wherein an array of a corresponding data of the digitized form signal is stored in the memory unit and operated by the pixel shader unit forming a resulting array, written into the memory unit at the first address (see FIG. 3). A first address and values of the endpoints of the array of the corresponding data of the digitized form signal are supplied to the rasterizer unit. The rasterizer unit interpolates values between values of endpoints of the array. The values of the endpoints and the interpolated values of the array correspond to addresses in the memory unit for the array of the corresponding data of the digitized form signal.
摘要翻译：处理来自全球导航卫星系统（“GNSS”）的信号的可编程图形处理器; 具有光栅化单元，像素着色单元和存储单元。 GNSS卫星，接收信号转换成接收信号的数字化形式，并由可编程图形处理器变换，其中数字化形式信号的相应数据的阵列被存储在存储器单元中并由像素着色器单元形成在第一地址处写入存储器单元（参见图3）。数字化形式信号的相应数据的阵列的端点的第一地址和值被提供给光栅化器单元。光栅化器单元在数组的端点值之间插值。阵列的端点值和内插值对应于数字化形式信号对应数据阵列的存储器单元中的地址。

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