公开(公告)号：US20100195746A1

公开(公告)日：2010-08-05

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： H04L27/00

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：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：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：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：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。

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：US20090196378A1

公开(公告)日：2009-08-06

申请号：US12023295

申请日：2008-01-31

申请人： Jui-ming Wei

发明人： Jui-ming Wei

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H04B1/7075

摘要： A post correlation system for a GNSS receiver uses an FFT engine to perform post-FFT operation to obtain spectrum data. The system has a contender selector for sieving magnitude results of the spectrum data meeting some specific conditions for selected hypotheses. The sieved magnitudes results rather than all the magnitude results are stored into a memory. By doing so, the requirement of the memory capacity can be significantly reduced.

摘要翻译： 用于GNSS接收机的后置相关系统使用FFT引擎执行后FFT操作以获得频谱数据。 该系统具有竞争者选择器，用于筛选符合选定假设的某些特定条件的频谱数据的幅度结果。 筛选的大小结果而不是所有的大小结果都存储在内存中。 通过这样做，可以显着降低对存储容量的要求。

公开(公告)号：US20090196377A1

公开(公告)日：2009-08-06

申请号：US12023282

申请日：2008-01-31

申请人： Jui-ming Wei ,  Ming-hung Li ,  Jhih-siang Jhang

发明人： Jui-ming Wei ,  Ming-hung Li ,  Jhih-siang Jhang

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： G01S19/24 ,  G01S19/37

摘要： A correlation system for a GNSS receiver uses an FFT engine to perform correlation and post-FFT operation. The FFT engine executes FFT operation to an input data stream so as to generate a frequency-domain correlation with frequency-domain C/A code and IFFT operation to the frequency-domain correlation result to generate post correlation data for each hypothesis, and executes FFT operation to the post correlation data of a selected hypothesis to generate a post-correlation FFT result in a programmable TDM manner. In the present invention, in addition to the FFT engine, some components such as a magnitude calculation unit and memory are shared by a correlation stage and a post-correlation stage. Therefore, hardware complexity can be reduced.

摘要翻译： GNSS接收机的相关系统使用FFT引擎执行相关和后FFT操作。 FFT引擎对输入数据流执行FFT运算，以产生与频域相关结果的频域C / A码和IFFT运算的频域相关，以产生每个假设的后相关数据，并执行FFT 对所选假设的后相关数据进行操作以产生可编程TDM方式的后相关FFT。 在本发明中，除了FFT引擎之外，诸如大小计算单元和存储器的一些组件通过相关级和后相关级共享。 因此，可以降低硬件复杂度。