公开(公告)号：US20080037687A1

公开(公告)日：2008-02-14

申请号：US11464089

申请日：2006-08-11

申请人： Kuan-i Li ,  Jui-Ming Wei ,  Chun-nan Chen

发明人： Kuan-i Li ,  Jui-Ming Wei ,  Chun-nan Chen

IPC分类号： H04L27/00

CPC分类号： G01S19/36 ,  G01S19/33

摘要： A method of direct RF digitization for multiple RF signal bands such GNSS or wireless communication signal bands and a receiver using the method. By using the method, an optimal sampling frequency to be used in direct RF digitization for signals of multiple RF signal bands can be easily obtained. According to the present invention, one or more of the RF signal bands are selected to be shifted to target band(s). By doing so, the optimal sampling frequency can be easily calculated. Then the obtained sampling frequency is used in executing the direct RF digitization.

摘要翻译： 一种用于诸如GNSS或无线通信信号频带的多个RF信号频带的直接RF数字化方法以及使用该方法的接收机。 通过使用该方法，可以容易地获得用于多个RF信号频带的信号的直接RF数字化中的最佳采样频率。 根据本发明，选择一个或多个RF信号频带以转移到目标频带。 通过这样做，可以容易地计算最佳采样频率。 然后获得的采样频率用于执行直接RF数字化。

公开(公告)号：US07720178B2

公开(公告)日：2010-05-18

申请号：US11464089

申请日：2006-08-11

申请人： Kuan-i Li ,  Jui-Ming Wei ,  Chun-nan Chen

发明人： Kuan-i Li ,  Jui-Ming Wei ,  Chun-nan Chen

IPC分类号： H03K9/00 ,  H03D7/16

CPC分类号： G01S19/36 ,  G01S19/33

摘要： A method of direct RF digitization for multiple RF signal bands such GNSS or wireless communication signal bands and a receiver using the method. By using the method, an optimal sampling frequency to be used in direct RF digitization for signals of multiple RF signal bands can be easily obtained. According to the present invention, one or more of the RF signal bands are selected to be shifted to target band(s). By doing so, the optimal sampling frequency can be easily calculated. Then the obtained sampling frequency is used in executing the direct RF digitization.

摘要翻译： 一种用于诸如GNSS或无线通信信号频带的多个RF信号频带的直接RF数字化方法以及使用该方法的接收机。 通过使用该方法，可以容易地获得用于多个RF信号频带的信号的直接RF数字化中的最佳采样频率。 根据本发明，选择一个或多个RF信号频带以转移到目标频带。 通过这样做，可以容易地计算最佳采样频率。 然后获得的采样频率用于执行直接RF数字化。

公开(公告)号：US20080084954A1

公开(公告)日：2008-04-10

申请号：US11948726

申请日：2007-11-30

申请人： Chun-nan Chen ,  Jui-Ming Wei

发明人： Chun-nan Chen ,  Jui-Ming Wei

IPC分类号： H04L7/00

CPC分类号： H04L7/0004 ,  G01S19/24 ,  G01S19/254 ,  G01S19/29 ,  G01S19/30 ,  G01S19/37 ,  H04B1/7075 ,  H04B1/7085 ,  H04B2201/70701

摘要： An adaptive time-division multiplexing receiver and method for a GNSS system using pilot and data channels for each satellite are disclosed. According to the present invention, multiplexing hypotheses of correlation are properly distributed to pilot and data channels. The pilot and data channels of one satellite can be dealt with as two satellites. Alternatively, correlation is mainly executed to the pilot channel. After the pilot channel is acquired, information such as code phase and Doppler frequency of the satellite are known. Therefore, the data can be demodulated based on the known information.

摘要翻译： 公开了一种用于每个卫星使用导频和数据信道的GNSS系统的自适应时分复用接收机和方法。 根据本发明，相关性的复用假设被适当地分配给导频和数据信道。 一颗卫星的飞行员和数据通道可以作为两颗卫星处理。 或者，主要对导频信道进行相关。 在获取导频信道之后，已知卫星的码相位和多普勒频率等信息。 因此，可以基于已知信息来解调数据。

公开(公告)号：US20080057884A1

公开(公告)日：2008-03-06

申请号：US11469697

申请日：2006-09-01

申请人： Jui-ming Wei ,  Chun-nan Chen

发明人： Jui-ming Wei ,  Chun-nan Chen

IPC分类号： G06F3/033

CPC分类号： H04B1/0007 ,  H04B1/30

摘要： A programmable direct RF digitization receiver for multiple RF signal bands such as GNSS bands and other wireless communication bands. The receiver has a programmable frequency provision unit. The programmable frequency provision unit provides a shared sampling frequency or respective sampling frequencies based on selected bands so that the receiver can executes digitization to down-convert received signals of the selected bands with the sampling frequency or frequencies. By using the receiver of the present invention, different band combinations can be supported with great flexibility. In addition performance such as SNR (signal-to-noise ratio) can be fine tuned by adjusting the separation of down-converted IF bands.

摘要翻译： 用于多个RF信号频带（如GNSS频带和其他无线通信频段）的可编程直接RF数字化接收机。 接收器具有可编程频率提供单元。 可编程频率提供单元基于所选择的频带提供共享采样频率或相应的采样频率，使得接收机可以执行数字化以使采样频率或频率的所选频带的接收信号下变频。 通过使用本发明的接收机，可以以很大的灵活性支持不同的频带组合。 此外，通过调整下变频IF频带的分离，可以很好地调整诸如SNR（信噪比）的性能。

公开(公告)号：US20080159198A1

公开(公告)日：2008-07-03

申请号：US11616610

申请日：2006-12-27

申请人： Chun-nan Chen ,  Kun-tso Chen ,  Jui-ming Wei

发明人： Chun-nan Chen ,  Kun-tso Chen ,  Jui-ming Wei

IPC分类号： H04B7/14

CPC分类号： H04B1/7075 ,  G01S19/30 ,  H04B1/7085 ,  H04B2201/70715 ,  H04L25/03834 ,  H04L27/2046 ,  H04L27/227

摘要： A BOC signal acquisition and tracking apparatus and method. In the present invention, at least a BOC signal, a BOC-cos signal and a PRN coded signal are generated for a received signal. Depending on application condition (e.g. acquisition mode or tracking mode), autocorrelation of the BOC signal is combined with cross-correlation of the BOC signal and one of the BOC-cos signal and the PRN coded signal to generate a proper combined correlation result.

摘要翻译： BOC信号采集跟踪装置及方法。 在本发明中，为接收信号生成至少BOC信号，BOC-cos信号和PRN编码信号。 根据应用条件（例如采集模式或跟踪模式），BOC信号的自相关与BOC信号与BOC-cos信号和PRN编码信号之一的互相关相结合，以产生适当的组合相关结果。

公开(公告)号：US07711037B2

公开(公告)日：2010-05-04

申请号：US11615271

申请日：2006-12-22

申请人： Chun-nan Chen ,  Jui-Ming Wei

发明人： Chun-nan Chen ,  Jui-Ming Wei

IPC分类号： H04B1/00

CPC分类号： G01S19/37 ,  G01S19/24 ,  G01S19/34

摘要： A fraction chip correlation device for a spread spectrum receiver for receiving signals modulated with spread spectrum codes and a method for operating fractional chip correlation to spread spectrum signals received by the spread spectrum receiver are disclosed. In the present invention, at least one delayed version of an input signal is generated to be correlated with a local code replica to accomplish fractional chip correlation. By doing so, correlators can operate at a low speed, so that power consumption of the receiver can be significantly reduced.

摘要翻译： 公开了一种用于接收用扩频码调制的信号的扩展频谱接收机的分数芯片相关装置，以及用于对由扩频接收机接收的扩展频谱信号进行分数码片相关运算的方法。 在本发明中，产生输入信号的至少一个延迟版本以与本地码复制相关以实现分数码片相关。 通过这样做，相关器可以以低速操作，从而可以显着地减少接收机的功耗。

公开(公告)号：US20080151970A1

公开(公告)日：2008-06-26

申请号：US11615271

申请日：2006-12-22

申请人： Chun-nan Chen ,  Jui-ming Wei

发明人： Chun-nan Chen ,  Jui-ming Wei

IPC分类号： H04B1/707

CPC分类号： G01S19/37 ,  G01S19/24 ,  G01S19/34

摘要： A fraction chip correlation device for a spread spectrum receiver for receiving signals modulated with spread spectrum codes and a method for operating fractional chip correlation to spread spectrum signals received by the spread spectrum receiver are disclosed. In the present invention, at least one delayed version of an input signal is generated to be correlated with a local code replica to accomplish fractional chip correlation. By doing so, correlators can operate at a low speed, so that power consumption of the receiver can be significantly reduced.

摘要翻译： 公开了一种用于接收用扩频码调制的信号的扩展频谱接收机的分数芯片相关装置，以及用于对由扩频接收机接收的扩展频谱信号进行分数码片相关运算的方法。 在本发明中，产生输入信号的至少一个延迟版本以与本地码复制相关以实现分数码片相关。 通过这样做，相关器可以以低速操作，从而可以显着地减少接收机的功耗。

公开(公告)号：US08374223B2

公开(公告)日：2013-02-12

申请号：US12757994

申请日：2010-04-10

申请人： Chun-nan Chen ,  Kun-tso Chen ,  Jui-ming Wei

发明人： Chun-nan Chen ,  Kun-tso Chen ,  Jui-ming Wei

IPC分类号： H04B1/00

CPC分类号： H04B1/7075 ,  G01S19/30 ,  H04B1/7085 ,  H04B2201/70715 ,  H04L25/03834 ,  H04L27/2046 ,  H04L27/227

摘要： A BOC signal acquisition and tracking apparatus and method. In the present invention, at least a BOC signal, a BOC-cos signal and a PRN coded signal are generated for a received signal. Depending on application condition (e.g. acquisition mode or tracking mode), autocorrelation of the BOC signal is combined with cross-correlation of the BOC signal and one of the BOC-cos signal and the PRN coded signal to generate a proper combined correlation result.

摘要翻译： BOC信号采集跟踪装置及方法。 在本发明中，为接收信号生成至少BOC信号，BOC-cos信号和PRN编码信号。 根据应用条件（例如采集模式或跟踪模式），BOC信号的自相关与BOC信号与BOC-cos信号和PRN编码信号之一的互相关相结合，以产生适当的组合相关结果。

公开(公告)号：US07994976B2

公开(公告)日：2011-08-09

申请号：US11948726

申请日：2007-11-30

申请人： Chun-nan Chen ,  Jui-Ming Wei

发明人： Chun-nan Chen ,  Jui-Ming Wei

IPC分类号： G01S19/24 ,  G01S19/29 ,  G01S19/30

CPC分类号： H04L7/0004 ,  G01S19/24 ,  G01S19/254 ,  G01S19/29 ,  G01S19/30 ,  G01S19/37 ,  H04B1/7075 ,  H04B1/7085 ,  H04B2201/70701

摘要： An adaptive time-division multiplexing receiver and method for a GNSS system using pilot and data channels for each satellite are disclosed. According to the present invention, multiplexing hypotheses of correlation are properly distributed to pilot and data channels. The pilot and data channels of one satellite can be dealt with as two satellites. Alternatively, correlation is mainly executed to the pilot channel. After the pilot channel is acquired, information such as code phase and Doppler frequency of the satellite are known. Therefore, the data can be demodulated based on the known information.

摘要翻译： 公开了一种用于每个卫星使用导频和数据信道的GNSS系统的自适应时分复用接收机和方法。 根据本发明，相关性的复用假设被适当地分配给导频和数据信道。 一颗卫星的飞行员和数据通道可以作为两颗卫星处理。 或者，主要对导频信道进行相关。 在获取导频信道之后，已知卫星的码相位和多普勒频率等信息。 因此，可以基于已知信息来解调数据。

公开(公告)号：US20080069187A1

公开(公告)日：2008-03-20

申请号：US11533142

申请日：2006-09-19

申请人： Chun-nan Chen ,  Jui-ming Wei

发明人： Chun-nan Chen ,  Jui-ming Wei

IPC分类号： H04B1/00 ,  H04L27/00

CPC分类号： H04B1/7075 ,  G01S19/30 ,  H04B2201/70715 ,  H04L2027/0057

摘要： A BOC signal acquisition and tracking apparatus and method. In the present invention, a BOC subcarrier, a QBOC subcarrier and harmonics thereof are used as subcarriers. Those subcarriers can be mixed with a received signal and integration result of each mixing result is calculated. Then, all the integration results are combined as a combined correlation. Alternatively, those subcarriers can be combined as a synthesized subcarrier. The synthesized subcarrier is mixed with the received signal, and the integration of the mixing result is calculated to obtain a synthesized correlation.

摘要翻译： BOC信号采集跟踪装置及方法。 在本发明中，使用BOC副载波，QBOC副载波及其谐波作为副载波。 这些子载波可以与接收信号混合，并且计算每个混合结果的积分结果。 然后，将所有的积分结果作为一个组合相关组合。 或者，可以将这些子载波组合为合成子载波。 将合成子载波与接收信号混合，并计算混合结果的积分以获得合成的相关性。