公开(公告)号：US20090063050A1

公开(公告)日：2009-03-05

申请号：US11845579

申请日：2007-08-27

Applicant: Robert G. Simpson

Inventor： Robert G. Simpson

IPC: G01C21/00

CPC classification number: H04B1/7085 ,  G01S19/30 ,  H04B1/709 ,  H04B2201/70715

Abstract: Systems and methods for avoiding non-linear behavior of conventional early-minus-late correlator-based code loop discriminators. The present invention provides a model of correlator behavior that takes into account whether both correlators are on the same side of the correlation peak or they straddle the peak. The result is a piecewise solution that can be stiched together quite readily to produce an extended range of linear response, thereby improving the pull-in capability of GPS code loops when closely spaced correlators are being used.

Abstract translation: 用于避免常规的早减相关器代码循环鉴别器的非线性行为的系统和方法。 本发明提供一种相关器行为的模型，其考虑两个相关器是否在相关峰的相同侧或者它们跨越峰值。 结果是一个分段解决方案可以非常容易地集中在一起，以产生延伸的线性响应范围，从而在使用紧密相关的相关器时改善GPS码循环的引入能力。

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：US20090040103A1

公开(公告)日：2009-02-12

申请号：US10570578

申请日：2004-09-02

Applicant: Mangesh Chansarkar ,  Sundar Raman ,  Charles P. Norman ,  Paul A. Underbrink ,  Henry D. Falk ,  James Brown ,  Robert Harvey ,  Peter Michali ,  Williams Higgins ,  Gengsheng Zhang ,  Qingwen Zhang

Inventor： Mangesh Chansarkar ,  Sundar Raman ,  Charles P. Norman ,  Paul A. Underbrink ,  Henry D. Falk ,  James Brown ,  Robert Harvey ,  Peter Michali ,  Williams Higgins ,  Gengsheng Zhang ,  Qingwen Zhang

IPC: G01S1/00

CPC classification number: G01S19/13 ,  G01S19/24 ,  G01S19/34 ,  G01S19/37 ,  H04B1/707 ,  H04B2201/70715

Abstract: Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centering and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation subsystem; a subsystem for mode switching between a navigational signal; and power control module for a receiver.

Abstract translation: 用于处理来自卫星定位系统的信号的控制和特征系统包括专家系统接收器管理器; 联合检测，载波中心和位同步采集子系统; 峰值检测; 多维测量插值子系统; 用于导航信号之间的模式切换的子系统; 和接收机的电源控制模块。

公开(公告)号：US20090022210A1

公开(公告)日：2009-01-22

申请号：US12171655

申请日：2008-07-11

Applicant: Kazumi MATSUMOTO

Inventor： Kazumi MATSUMOTO

IPC: H04B1/00 ,  H03D1/04 ,  H04B1/10 ,  H03D1/06 ,  H04B1/707

CPC classification number: H04B1/7097 ,  H04B2201/70715

Abstract: A noise cancellation method includes: inputting an interference wave signal detected near a receiver section, and changing the phase and the amplitude of the input signal to generate a cancellation signal that cancels the input signal; performing correlation calculations on a signal obtained by adding the cancellation signal to a communication signal received by the receiver section and a code replica of a PRN code used for the communication signal, within a given correlation calculation target range that is included within a code phase range and a frequency range; and performing the correlation calculations within a non-signal range outside the correlation calculation target range, and controlling a phase shift amount and an amplitude change rate of the input signal based on the correlation calculation result.

Abstract translation: 噪声消除方法包括：输入在接收机部分附近检测到的干扰波信号，以及改变输入信号的相位和幅度以产生消除输入信号的消除信号; 在包括在码相位范围内的给定相关计算目标范围内对通过将接收部分接收到的通信信号加上消除信号而获得的信号和用于通信信号的PRN码的编码副本执行相关计算 和频率范围; 以及在相关计算目标范围之外的非信号范围内执行相关计算，并且基于相关计算结果来控制输入信号的相移量和幅度变化率。

公开(公告)号：US20090003412A1

公开(公告)日：2009-01-01

申请号：US12038198

申请日：2008-02-27

Applicant: Noboru NEGORO ,  Takeshi FUKUDA ,  Hiroyuki SAKAI

Inventor： Noboru NEGORO ,  Takeshi FUKUDA ,  Hiroyuki SAKAI

IPC: H04B1/69

CPC classification number: G01S13/325 ,  G01S7/023 ,  H04B2201/70715

Abstract: To provide a spread spectrum radar apparatus which can lower the probability for misidentifying a presence of object. The spread spectrum radar apparatus includes: a pseudo-noise code for transmission generation unit which generates a pseudo-noise code for transmission; a spread spectrum modulation unit which performs spread spectrum modulation on a carrier wave using the pseudo-noise code for transmission; a pseudo-noise code for receiver generation unit which generates a pseudo-noise code for receiver which is a time-delayed pseudo-noise code for transmission; a spread spectrum demodulation unit which performs spread spectrum demodulation on a received signal, using the pseudo-noise code for receiver, so as to output a correlation signal; a code change control unit which changes the pseudo-noise codes for transmission and receiver into a different kind of the pseudo-noise codes at every predetermined time; and a correlation value calculation unit which averages or integrates, with the number of kinds of the generated pseudo-noise codes, an intensity of the correlation signal.

Abstract translation: 提供一种可以降低错误识别物体存在的可能性的扩频雷达装置。 扩频雷达装置包括：发送生成单元的伪噪声码，生成用于发送的伪噪声码; 扩频调制单元，其使用用于发送的伪噪声码对载波进行扩频调制; 用于生成用于接收机的伪噪声码的接收机生成单元的伪噪声码，所述伪噪声码是用于发射的时间延迟的伪噪声码; 扩展频谱解调单元，使用接收机的伪噪声码对接收信号进行扩频解调，以输出相关信号; 代码变更控制单元，其将每个预定时间的伪噪声码改变为不同种类的伪噪声码; 以及相关值计算单元，其与生成的伪噪声代码的种类的数量对相关信号的强度进行平均或积分。

公开(公告)号：US20080316095A1

公开(公告)日：2008-12-25

申请号：US12141324

申请日：2008-06-18

Applicant: Makoto MURAKAMI

Inventor： Makoto MURAKAMI

IPC: G01S5/14

CPC classification number: G01S19/37 ,  G01S19/30 ,  H04B1/707 ,  H04B1/70712 ,  H04B2201/70715

Abstract: Integrated correlation values (I and Q integrated correlation values) between each of I and Q signals obtained from a received signal and a code replica are calculated by a coherent integration process performed by a correlation process circuit section 32. A coherent integration enhancement circuit section converts a phase angle θ of each of the I and Q integrated correlation values (IQ coordinate values) into a double angle, and further integrates the converted I and Q integrated correlation values (IQ coordinate values) to calculate I and Q enhanced integrated correlation values. An incoherent integration circuit section performs an incoherent integration process on the I and Q enhanced integrated correlation values. A coherent integration time T1 of the correlation circuit section is set to be 20 ms or less, and an integration time T2 of the coherent integration enhancement circuit section is set to be longer than 20 ms.

Abstract translation: 通过由相关处理电路部分32执行的相干积分处理来计算从接收信号和码副本获得的每个I和Q信号之间的综合相关值（I和Q积分相关值）。相干积分增强电路部分转换 I和Q积分相关值（IQ坐标值）中的每一个的相位角θ成为双角度，并且进一步积分转换的I和Q积分相关值（IQ坐标值）以计算I和Q增强的积分相关值。 非相干积分电路部分对I和Q增强的综合相关值进行非相干积分处理。 相关电路部的相干积分时间T1被设定为20ms以下，相干积分增强电路部的积分时间T2被设定为长于20ms。

公开(公告)号：US07418066B2

公开(公告)日：2008-08-26

申请号：US11053573

申请日：2005-02-07

Applicant: Scott Bloebaum ,  Andrew Chou ,  Benjamin Van Roy

Inventor： Scott Bloebaum ,  Andrew Chou ,  Benjamin Van Roy

IPC: H03K5/01

CPC classification number: H04B1/7102 ,  G01S5/0036 ,  G01S19/25 ,  G01S19/29 ,  G01S19/37 ,  H04B2201/70715

Abstract: A multi-function device with a positioning function and a real time positioning engine is disclosed. The device contains also a shared processor used by the positioning function and other functions of the device, such as a mobile radio-communication function. The positioning engine performs in real time the most computational intensive calculations of the positioning function, such as downsampling, Doppler mixing and correlation calculations. Since the received signal need not be stored, the memory requirements of the positioning function are significantly reduced if aiding data is available.

公开(公告)号：US07408505B2

公开(公告)日：2008-08-05

申请号：US11692699

申请日：2007-03-28

Applicant: Scott Bloebaum ,  Andrew Chou ,  Benjamin Van Roy

Inventor： Scott Bloebaum ,  Andrew Chou ,  Benjamin Van Roy

IPC: G01S5/14 ,  H04B1/707

CPC classification number: H04B1/7102 ,  G01S5/0036 ,  G01S19/25 ,  G01S19/29 ,  G01S19/37 ,  H04B2201/70715

Abstract: A multi-function device with a positioning function and a real time positioning engine is disclosed. The device contains also a shared processor used by the positioning function and other functions of the device, such as a mobile radio-communication function. The positioning engine performs in real time the most computational intensive calculations of the positioning function, such as downsampling, Doppler mixing and correlation calculations. Since the received signal need not be stored, the memory requirements of the positioning function are significantly reduced if aiding data is available.

Abstract translation: 公开了具有定位功能的多功能装置和实时定位引擎。 该设备还包括由定位功能和设备的其他功能（例如移动无线电通信功能）使用的共享处理器。 定位引擎实时执行定位功能的最大计算密集型计算，例如下采样，多普勒混合和相关计算。 由于接收到的信号不需要存储，所以如果有帮助数据可用，定位功能的存储器要求会大大降低。

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：US20080062856A1

公开(公告)日：2008-03-13

申请号：US11926144

申请日：2007-10-29

Applicant: Kamilo Feher

Inventor： Kamilo Feher

IPC: H04J11/00 ,  H04B7/212 ,  H04B7/216

CPC classification number: H04L5/1453 ,  A61B5/0015 ,  A61B5/0022 ,  A61B5/01 ,  A61B5/024 ,  A61B5/14532 ,  G16H10/60 ,  G16H15/00 ,  H04B1/1036 ,  H04B1/69 ,  H04B1/707 ,  H04B1/709 ,  H04B7/04 ,  H04B7/18504 ,  H04B7/2628 ,  H04B2201/70715 ,  H04B2201/70716 ,  H04J11/00 ,  H04L1/0003 ,  H04L5/0007 ,  H04L27/2017 ,  H04L27/2071 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04M7/006 ,  H04W4/023 ,  H04W4/025 ,  H04W4/90 ,  H04W12/06 ,  H04W64/00 ,  H04W88/02 ,  H04W88/06 ,  Y02A90/26

Abstract: Bluetooth transmitter and receiver for transmitting and receiving voice signal and for providing received voice signal to a processor for processing demodulated Bluetooth signal. Location finding signal receiver, demodulator and processor for receiving, demodulating and processing a location finder signal into demodulated processed location finder signal and for processing location finder signal with processed and filtered Time Division Multiple Access (TDMA) signal, or with processed and filtered cross-correlated in-phase and quadrature-phase signal, or with processed Orthogonal Frequency Division Multiplexed (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) or with spread spectrum Code Division Multiple Access (CDMA) signal. Modulator and transmitter for modulation and transmission of processed signal. Receiver for receiving transmitted signal. Demodulator, receiver filter and receiver processor for demodulation, filtering and processing of received modulated cross-correlated signal having filter for filtering of the cross-correlated signal which is mismatched to the transmit filter of the cross-correlated signal. Receive processor provides received mis-match filtered cross-correlated in-phase and quadrature-phase signal. Location finder signal received from one or more satellites and from one or more ground based single or plurality of transmitters. Receiver for receiving transmitted signal has a radio frequency (RF) unit which is located at a remote location from demodulator. OFDM or OFDMA signal is used in a Wireless Local Area Network (WLAN) or a Wi-Fi network and TDMA signal in a cellular network.

Abstract translation: 用于发送和接收语音信号的蓝牙发射机和接收机，并用于向处理器提供接收到的语音信号以处理解调的蓝牙信号。 位置查找信号接收机，解调器和处理器，用于接收，解调和处理位置查找器信号到解调处理的位置查找器信号中，并用于处理具有处理和经滤波的时分多址（TDMA）信号的位置查找器信号， 相关的同相和正交相位信号，或处理的正交频分复用（OFDM）或正交频分多址（OFDMA）或扩频码分多址（CDMA）信号。 调制器和发射机用于调制和传输处理的信号。 用于接收发射信号的接收机。 解调器，接收机滤波器和接收机处理器，用于解调，滤波和处理具有与交叉相关信号的发射滤波器不匹配的交叉相关信号的滤波器的接收调制交叉相关信号。 接收处理器提供接收到的错误匹配滤波的交叉相位同相和正交相位信号。 从一个或多个卫星和一个或多个基于地面的单个或多个发射机接收的定位器信号。 用于接收发射信号的接收机具有射频（RF）单元，其位于远离解调器的位置。 在蜂窝网络中的无线局域网（WLAN）或Wi-Fi网络和TDMA信号中使用OFDM或OFDMA信号。