公开(公告)号：US20080084954A1

公开(公告)日：2008-04-10

申请号：US11948726

申请日：2007-11-30

Applicant: Chun-nan Chen ,  Jui-Ming Wei

Inventor： Chun-nan Chen ,  Jui-Ming Wei

IPC: H04L7/00

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

Abstract: 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.

Abstract translation: 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

Applicant: Jui-ming Wei ,  Chun-nan Chen

Inventor： Jui-ming Wei ,  Chun-nan Chen

IPC: G06F3/033

CPC classification number: H04B1/0007 ,  H04B1/30

Abstract: 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.

Abstract translation: 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：US20090041089A1

公开(公告)日：2009-02-12

申请号：US11834783

申请日：2007-08-07

Applicant: Jhih-siang Jhang ,  Chun-nan Chen

Inventor： Jhih-siang Jhang ,  Chun-nan Chen

IPC: H04B1/00

CPC classification number: H04B1/707 ,  G01S19/37 ,  H04B1/709 ,  H04B2201/7071 ,  H04B2201/70715 ,  H04J13/10

Abstract: Disclosed is a shared correlator for processing signals with different chip rates from respective channels. The shared correlator comprises a mode controller, a plurality of sub-correlators, a PRN code generator and a plurality of accumulators. The mode controller arranges channel allocations for respective IF signals down converted from the signals. The PRN code generator generates respective PRN codes for the respective IF signals according to the respective chip rates thereof. The sub-correlators perform correlation to the respective IF signals with the respective PRN codes to obtain respective correlating results. The accumulators accumulate the respective correlation results to obtain respective overall correlation gains of the respective IF signals according to the respective chip rates. Each sub-correlator comprises a plurality of correlator cells, correlating one IF signal with one PRN code corresponding thereto according to the chip rate of the IF signal.

Abstract translation: 公开了一种用于处理来自相应信道的具有不同码片速率的信号的共享相关器。 共享相关器包括模式控制器，多个子相关器，PRN码发生器和多个累加器。 模式控制器对从信号中下变频的各个IF信号进行通道分配。 PRN码发生器根据各自的码片速率产生相应的IF信号的PRN码。 子相关器利用相应的PRN码对相应的IF信号进行相关，以获得各自的相关结果。 累加器累积相应的相关结果，以根据各自的码片速率获得各个IF信号的相应总体相关增益。 每个子相关器包括多个相关器单元，根据IF信号的码片速率将一个IF信号与对应于其的一个PRN码相关。

公开(公告)号：US20080159198A1

公开(公告)日：2008-07-03

申请号：US11616610

申请日：2006-12-27

Applicant: Chun-nan Chen ,  Kun-tso Chen ,  Jui-ming Wei

Inventor： Chun-nan Chen ,  Kun-tso Chen ,  Jui-ming Wei

IPC: H04B7/14

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

Abstract: 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.

Abstract translation: 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

Applicant: Chun-nan Chen ,  Jui-Ming Wei

Inventor： Chun-nan Chen ,  Jui-Ming Wei

IPC: H04B1/00

CPC classification number: G01S19/37 ,  G01S19/24 ,  G01S19/34

Abstract: 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.

Abstract translation: 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：US07474260B2

公开(公告)日：2009-01-06

申请号：US11406644

申请日：2006-04-19

Applicant: Chun-nan Chen

Inventor： Chun-nan Chen

IPC: G01S5/14 ,  H04B1/00

CPC classification number: G01S19/34 ,  G01S19/24 ,  G01S19/29 ,  G01S19/30 ,  G01S19/37 ,  H04B1/7075 ,  H04B2001/70706 ,  H04B2201/70707

Abstract: A satellite signal adjustable time-division multiplexing receiver for GNSS and a method for acquiring and tracking satellite signal used in the receiver. The present invention executes correlation in an adjustable time-division multiplexing and uses a clock signal with a clock rate to control speed of correlation. The clock rate can be fixed or variable. In the case that the clock rate is variable, when the speed is required to be fast (e.g. in satellite acquisition mode), the clock rate is set to be high clock rate; when the speed needs not be so fast (e.g. in signal tracking mode), the clock rate can be lower down to reduce power consumption. The adjustable time-division multiplexing is arranged for respective domains such as visible satellite, code phase, Doppler frequency and tracking accuracy according to the clock rate.

Abstract translation: 用于GNSS的卫星信号可调时分多路复用接收机以及用于获取和跟踪在接收机中使用的卫星信号的方法。 本发明在可调时分复用中执行相关性，并且使用具有时钟速率的时钟信号来控制相关速度。 时钟频率可以是固定的或可变的。 在时钟速率可变的情况下，当速度要求快时（例如在卫星采集模式中），时钟频率被设置为高时钟频率; 当速度不需要如此快速（例如在信号跟踪模式中）时，可以将时钟速率降低以降低功耗。 根据时钟频率，对可视卫星，码相位，多普勒频率和跟踪精度等各个域进行可调时分复用。

公开(公告)号：US20080151970A1

公开(公告)日：2008-06-26

申请号：US11615271

申请日：2006-12-22

Applicant: Chun-nan Chen ,  Jui-ming Wei

Inventor： Chun-nan Chen ,  Jui-ming Wei

IPC: H04B1/707

CPC classification number: G01S19/37 ,  G01S19/24 ,  G01S19/34

Abstract: 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.

Abstract translation: 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：US20070247356A1

公开(公告)日：2007-10-25

申请号：US11406644

申请日：2006-04-19

Applicant: Chun-nan Chen

Inventor： Chun-nan Chen

IPC: G01S5/14 ,  H04B1/00

CPC classification number: G01S19/34 ,  G01S19/24 ,  G01S19/29 ,  G01S19/30 ,  G01S19/37 ,  H04B1/7075 ,  H04B2001/70706 ,  H04B2201/70707

Abstract: A satellite signal adjustable time-division multiplexing receiver for GNSS and a method for acquiring and tracking satellite signal used in the receiver. The present invention executes correlation in an adjustable time-division multiplexing and uses a clock signal with a clock rate to control speed of correlation. The clock rate can be fixed or variable. In the case that the clock rate is variable, when the speed is required to be fast (e.g. in satellite acquisition mode), the clock rate is set to be high clock rate; when the speed needs not be so fast (e.g. in signal tracking mode), the clock rate can be lower down to reduce power consumption. The adjustable time-division multiplexing is arranged for respective domains such as visible satellite, code phase, Doppler frequency and tracking accuracy according to the clock rate.

Abstract translation: 用于GNSS的卫星信号可调时分多路复用接收机以及用于获取和跟踪在接收机中使用的卫星信号的方法。 本发明在可调时分复用中执行相关性，并且使用具有时钟速率的时钟信号来控制相关速度。 时钟频率可以是固定的或可变的。 在时钟速率可变的情况下，当速度要求快时（例如在卫星采集模式中），时钟频率被设定为高时钟频率; 当速度不需要如此快速（例如在信号跟踪模式中）时，可以将时钟速率降低以降低功耗。 根据时钟频率，对可视卫星，码相位，多普勒频率和跟踪精度等各个域进行可调时分复用。

公开(公告)号：US09124345B2

公开(公告)日：2015-09-01

申请号：US12326476

申请日：2008-12-02

Applicant: Chun-nan Chen ,  Ping-hsuan Tsu

Inventor： Chun-nan Chen ,  Ping-hsuan Tsu

IPC: H04B1/26 ,  H04B1/30 ,  H04B1/00

CPC classification number: H04B1/30 ,  H04B1/0007 ,  H04B1/005 ,  H04B1/006 ,  H04B1/0067

Abstract: A GNSS receiver having an IF process engine is disclosed. The IF process engine provides a plurality of carriers with different frequencies and down converts IF signals into baseband signals by using the carriers in a time division multiplex (TDM) schedule. The IF process engine has a local oscillator part for generating the carriers with different frequencies; an IF down-converter for respectively mixing the IF signal with the carriers generated by the local oscillator part to generate IF removed signal segments; a time division multiplex (TDM) controller for scheduling the respective mixing operations of the IF down-converter for the IF signal with the respective carriers; and a buffer for storing the IF removed signal segments generated by the IF down-converter.

Abstract translation: 公开了具有IF处理引擎的GNSS接收机。 IF处理引擎提供具有不同频率的多个载波，并且通过使用时分复用（TDM）调度中的载波，将IF信号下变频为基带信号。 IF处理引擎具有用于生成具有不同频率的载波的本地振荡器部分; 用于分别将IF信号与由本地振荡器部分产生的载波混合以产生IF去除的信号段的IF下变频器; 时分复用（TDM）控制器，用于调度具有各个载波的IF信号的IF下变频器的各自的混合操作; 以及用于存储由IF下变频器产生的IF去除的信号段的缓冲器。

公开(公告)号：US08374223B2

公开(公告)日：2013-02-12

申请号：US12757994

申请日：2010-04-10

Applicant: Chun-nan Chen ,  Kun-tso Chen ,  Jui-ming Wei

Inventor： Chun-nan Chen ,  Kun-tso Chen ,  Jui-ming Wei

IPC: H04B1/00

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

Abstract: 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.

Abstract translation: 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。