-
公开(公告)号：US09612339B2
公开(公告)日：2017-04-04
申请号：US13412281
申请日：2012-03-05
摘要： A GNSS receiver configured to detect a presence of at least one GNSS satellite signal in a received signal is provided. The GNSS receiver includes a buffer loaded with sample sets corresponding to the received signal and a Doppler derotation block configured to perform a Doppler derotation corresponding to at least one Doppler frequency on a sample set received from the buffer. The GNSS receiver further includes an accumulator block configured to perform a coherent accumulation of a plurality of sample sets upon or subsequent to the Doppler derotation corresponding to a Doppler frequency, and, a first memory configured to store the results of the coherent accumulation. A register array is configured to be loaded with the results stored in the first memory and a correlator engine is configured to generate correlation results by correlating the results in the register array with a plurality of code phases of GNSS satellites.
-
公开(公告)号：US20130229305A1
公开(公告)日：2013-09-05
申请号：US13412281
申请日：2012-03-05
IPC分类号： G01S19/24
摘要： A GNSS receiver configured to detect a presence of at least one GNSS satellite signal in a received signal is provided. The GNSS receiver includes a buffer loaded with sample sets corresponding to the received signal and a Doppler derotation block configured to perform a Doppler derotation corresponding to at least one Doppler frequency on a sample set received from the buffer. The GNSS receiver further includes an accumulator block configured to perform a coherent accumulation of a plurality of sample sets upon or subsequent to the Doppler derotation corresponding to a Doppler frequency, and, a first memory configured to store the results of the coherent accumulation. A register array is configured to be loaded with the results stored in the first memory and a correlator engine is configured to generate correlation results by correlating the results in the register array with a plurality of code phases of GNSS satellites.
摘要翻译： 提供了一种被配置为检测接收到的信号中至少一个GNSS卫星信号的存在的GNSS接收器。 GNSS接收机包括装载有与接收信号相对应的采样集的缓冲器和被配置为执行对应于从缓冲器接收的采样集上的至少一个多普勒频率的多普勒解旋的多普勒解旋转块。 GNSS接收器还包括累加器块，其被配置为在对应于多普勒频率的多普勒解旋之后或之后执行多个采样集的相干累积，以及被配置为存储相干累加的结果的第一存储器。 寄存器阵列被配置为加载存储在第一存储器中的结果，并且相关器引擎被配置为通过将寄存器阵列中的结果与GNSS卫星的多个码相相关来产生相关结果。
-
公开(公告)号：US20130016010A1
公开(公告)日：2013-01-17
申请号：US13182233
申请日：2011-07-13
IPC分类号： G01S19/30
CPC分类号： G01S19/30
摘要： A GNSS receiver includes at least one buffer and at least one correlator block. The at least one buffer stores a plurality of samples corresponding to a received signal. The at least one correlator block includes a Doppler derotation block configured to perform Doppler derotation corresponding to at least one Doppler frequency on the plurality of samples, a register array configured to be loaded with the plurality of samples on Doppler derotation corresponding to a Doppler frequency of the at least one Doppler frequency, and a correlator engine configured to generate correlation results by correlating the plurality of samples in the register array with a plurality of code phases for at least one GNSS satellite. A presence of at least one GNSS satellite signal may be detected based on coherent accumulation and a non-coherent accumulation of the correlation results.
摘要翻译： GNSS接收器包括至少一个缓冲器和至少一个相关器块。 所述至少一个缓冲器存储对应于接收信号的多个采样。 所述至少一个相关器块包括被配置为执行对应于所述多个样本上的至少一个多普勒频率的多普勒解旋的多普勒解旋转块，配置为在对应于多普勒频率的多普勒频率的多普勒解调上加载多个样本的寄存器阵列 所述至少一个多普勒频率以及被配置为通过将所述寄存器阵列中的所述多个采样与至少一个GNSS卫星的多个码相相关来生成相关结果的相关器引擎。 可以基于相干累积和相关结果的非相干累积来检测至少一个GNSS卫星信号的存在。
-
4.发明授权公开(公告)号：US09000980B2
公开(公告)日：2015-04-07
申请号：US13182233
申请日：2011-07-13
CPC分类号： G01S19/30
摘要： A GNSS receiver includes at least one buffer and at least one correlator block. The at least one buffer stores a plurality of samples corresponding to a received signal. The at least one correlator block includes a Doppler derotation block configured to perform Doppler derotation corresponding to at least one Doppler frequency on the plurality of samples, a register array configured to be loaded with the plurality of samples on Doppler derotation corresponding to a Doppler frequency of the at least one Doppler frequency, and a correlator engine configured to generate correlation results by correlating the plurality of samples in the register array with a plurality of code phases for at least one GNSS satellite. A presence of at least one GNSS satellite signal may be detected based on coherent accumulation and a non-coherent accumulation of the correlation results.
摘要翻译： GNSS接收器包括至少一个缓冲器和至少一个相关器块。 所述至少一个缓冲器存储对应于接收信号的多个采样。 所述至少一个相关器块包括被配置为执行对应于所述多个样本上的至少一个多普勒频率的多普勒解旋的多普勒解旋转块，配置为在对应于多普勒频率的多普勒频率的多普勒解调上加载多个样本的寄存器阵列 所述至少一个多普勒频率以及被配置为通过将所述寄存器阵列中的所述多个采样与至少一个GNSS卫星的多个码相相关来生成相关结果的相关器引擎。 可以基于相干累积和相关结果的非相干累积来检测至少一个GNSS卫星信号的存在。
-
公开(公告)号：US08193980B2
公开(公告)日：2012-06-05
申请号：US12045047
申请日：2008-03-10
申请人： Jasbir Singh Nayyar
发明人： Jasbir Singh Nayyar
IPC分类号： G01S19/11
CPC分类号： H04B1/7075 , G01S19/29 , G01S19/30 , G01S19/37 , H04B1/709 , H04B2201/70715
摘要： According to an aspect of the present invention, each correlation block in a Global Navigation Satellite System (GNSS) receiver is designed to examine a certain number of consecutive samples of an input signal and a buffer is designed to store more than such number of samples. Due to such storing, each correlator may perform multiple correlations for the same set of received samples. According to another aspect, such searches may be performed without rotating a local code by controlling the specific samples provided as window samples. Thus, while performing Doppler searches, different frequencies can be searched using the same local code without rotation. While performing code phase searches, the window samples may start from different positions with the position determining the specific phase being searched.
摘要翻译： 根据本发明的一个方面，全球导航卫星系统（GNSS）接收机中的每个相关块被设计为检查输入信号的一定数量的连续样本，并且缓冲器被设计为存储超过这样数量的样本。 由于这样的存储，每个相关器可以对同一组接收样本执行多个相关。 根据另一方面，可以通过控制作为窗口样本提供的特定样本而不转动本地代码来执行这种搜索。 因此，在执行多普勒搜索时，可以使用相同的本地代码来搜索不同的频率而不旋转。 在执行代码相位搜索时，窗口样本可以从确定正在搜索的特定阶段的位置的不同位置开始。
-
公开(公告)号：US20090213006A1
公开(公告)日：2009-08-27
申请号：US12391244
申请日：2009-02-23
摘要： A Global Navigation Satellite System (GNSS) receiver provided according to an aspect of the present invention contains a buffer to store less than a number of samples spanning a code period of a received GNSS signal, with the samples being used by a correlator and a processor to perform various searches in the receiver. Due to the use of such smaller memory space in the buffer, the overall size of receivers may be reduced. According to another aspect of the present invention, the amount of storage provided for storing local code and carrier samples (used during correlation) is also reduced by dynamically generating the local code and carrier sample as required for generating partial correlation results.
摘要翻译： 根据本发明的一方面提供的全球导航卫星系统（GNSS）接收机包含一个缓冲器，用于存储小于多个样本的样本，跨越接收到的GNSS信号的码周期，其中采样由相关器和处理器 在接收机中执行各种搜索。 由于在缓冲器中使用这样较小的存储空间，可以减少接收机的总体尺寸。 根据本发明的另一方面，还提供用于存储本地码和载波样本（在相关期间使用）中提供的存储量，通过根据需要动态生成本地码和载波样本来产生部分相关结果。
-
公开(公告)号：US20090224973A1
公开(公告)日：2009-09-10
申请号：US12045047
申请日：2008-03-10
申请人： Jasbir Singh Nayyar
发明人： Jasbir Singh Nayyar
IPC分类号： G01S1/00
CPC分类号： H04B1/7075 , G01S19/29 , G01S19/30 , G01S19/37 , H04B1/709 , H04B2201/70715
摘要： According to an aspect of the present invention, each correlation block in a Global Navigation Satellite System (GNSS) receiver is designed to examine a certain number of consecutive samples of an input signal and a buffer is designed to store more than such number of samples. Due to such storing, each correlator may perform multiple correlations for the same set of received samples. According to another aspect, such searches may be performed without rotating a local code by controlling the specific samples provided as window samples. Thus, while performing Doppler searches, different frequencies can be searched using the same local code without rotation. While performing code phase searches, the window samples may start from different positions with the position determining the specific phase being searched.
摘要翻译： 根据本发明的一个方面，全球导航卫星系统（GNSS）接收机中的每个相关块被设计为检查输入信号的一定数量的连续样本，并且缓冲器被设计为存储超过这样数量的样本。 由于这样的存储，每个相关器可以对同一组接收样本执行多个相关。 根据另一方面，可以通过控制作为窗口样本提供的特定样本而不转动本地代码来执行这种搜索。 因此，在执行多普勒搜索时，可以使用相同的本地代码来搜索不同的频率而不旋转。 在执行代码相位搜索时，窗口样本可以从确定正在搜索的特定阶段的位置的不同位置开始。
-
公开(公告)号：US07898475B2
公开(公告)日：2011-03-01
申请号：US12391244
申请日：2009-02-23
摘要： A Global Navigation Satellite System (GNSS) receiver provided according to an aspect of the present invention contains a buffer to store less than a number of samples spanning a code period of a received GNSS signal, with the samples being used by a correlator and a processor to perform various searches in the receiver. Due to the use of such smaller memory space in the buffer, the overall size of receivers may be reduced. According to another aspect of the present invention, the amount of storage provided for storing local code and carrier samples (used during correlation) is also reduced by dynamically generating the local code and carrier sample as required for generating partial correlation results.
摘要翻译： 根据本发明的一方面提供的全球导航卫星系统（GNSS）接收机包含一个缓冲器，用于存储小于多个样本的样本，跨越接收到的GNSS信号的码周期，其中采样由相关器和处理器 在接收机中执行各种搜索。 由于在缓冲器中使用这样较小的存储空间，可以减少接收机的总体尺寸。 根据本发明的另一方面，还提供用于存储本地码和载波样本（在相关期间使用）中提供的存储量，通过根据需要动态生成本地码和载波样本来产生部分相关结果。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.023 秒)
