公开(公告)号：WO0241595A3

公开(公告)日：2002-07-11

申请号：PCT/US0147158

申请日：2001-11-05

Applicant: QUALCOMM INC

Inventor： SIMIC EMILIJA M ,  YOUNIS SAED G ,  FILIPOVIC DANIEL F

IPC: H03G1/00 ,  H04L25/06 ,  H04L27/38 ,  H04L27/36 ,  H03G3/20

CPC classification number: H03G1/0088 ,  H04L25/06 ,  H04L27/3863

Abstract: Techniques to rotate the phase of a received signal to compensate for phase change or discontinuity introduced by circuit elements located directly in the receive signal path. One or more control signals are received, with each control signal being provided to adjust a particular characteristic of one or more circuit elements associated with the receive signal path. A phase rotation corresponding to an operating state defined by the control signals is then determined, and the phase of the received signal is rotated by an amount related to the determined phase rotation. In some designs, the phase rotation is performed on digitized inphase IIN and quadrature QIN samples to generate phase rotated IROT and QROT samples. The phase rotation can be performed by a complex multiply (after DC offset compensation) and, for ease of implementation, can be performed digitally in discrete increments (e.g., 90 DEG increments).

Abstract translation: 旋转接收信号的相位以补偿由直接位于接收信号路径中的电路元件引入的相位变化或不连续性的技术。 接收一个或多个控制信号，其中提供每个控制信号以调整与接收信号路径相关联的一个或多个电路元件的特定特性。 然后确定对应于由控制信号定义的操作状态的相位旋转，并且接收信号的相位旋转与所确定的相位旋转相关的量。 在一些设计中，相位旋转对数字化的同相IIN和正交QIN样本进行，以产生相位旋转的IROT和QROT样本。 相位旋转可以通过复乘（在DC偏移补偿之后）执行，并且为了便于实现，可以以离散增量（例如，90度增量）进行数字地执行。

公开(公告)号：WO2010111405A2

公开(公告)日：2010-09-30

申请号：PCT/US2010028520

申请日：2010-03-24

Applicant: QUALCOMM INC ,  FARMER DOMINIC GERARD ,  WU JIE ,  SIMIC EMILIJA M

Inventor： FARMER DOMINIC GERARD ,  WU JIE ,  SIMIC EMILIJA M

IPC: H04B1/707

CPC classification number: H04B1/7117 ,  G01S19/22 ,  H04B1/709

Abstract: A multipath detector includes an RF module receiving multiple signals, and a correlator module receiving the signals from the RF module. The correlator module correlates the signals to create a composite ACF, and produces samples of the composite autocorrelation function (ACF). The samples are time delayed relative to each other. The multipath detector also includes a carrier phase processor that receives the samples and estimates carrier phases associated with each of the samples. The carrier phase processor employs the estimated carrier phases to determine if one of the signals is subject to a multipath delay.

Abstract translation: 多路径检测器包括接收多个信号的RF模块和从RF模块接收信号的相关器模块。 相关器模块将信号相关联以产生复合ACF，并且产生复合自相关函数（ACF）的样本。 样品相对于彼此是时间延迟的。 多径检测器还包括载波相位处理器，其接收采样并估计与每个采样相关联的载波相位。 载波相位处理器使用估计的载波相位来确定信号中的一个是否经受多径延迟。

公开(公告)号：WO2006122293A3

公开(公告)日：2007-12-13

申请号：PCT/US2006018375

申请日：2006-05-10

Applicant: QUALCOMM INC ,  SIMIC EMILIJA M ,  PATRICK CHRISTOPHER ,  CHALLA RAGHU ,  ROWITCH DOUGLAS N

Inventor： SIMIC EMILIJA M ,  PATRICK CHRISTOPHER ,  CHALLA RAGHU ,  ROWITCH DOUGLAS N

IPC: H04B1/26 ,  G01S5/14 ,  G01S19/23

CPC classification number: G01S19/235 ,  H04B1/26

Abstract: A receiver according to one embodiment includes a frequency control unit configured to receive a stream of samples including a plurality of received instances of a transmitted signal. The frequency control unit is configured to output a first correction signal (e.g. indicating a rotation) that is based on more than one of the received instances and a second correction signal (e.g. to control an oscillator) that is also based on more than one of the received instances. In some embodiments, a controlled oscillator is used to receive and/or transmit another signal, such as a signal received from a GPS space vehicle. In other embodiments, the received instances are from a GPS signal. In further embodiments, a fixed-frequency oscillator is used, and the second correction signal is used to receive and/or transmit another signal, such as a GPS signal.

Abstract translation: 根据一个实施例的接收机包括：频率控制单元，被配置为接收包括发射信号的多个接收的实例的样本流。 频率控制单元被配置为输出基于多于一个接收到的实例的第一校正信号（例如指示旋转）和还基于多个接收实例中的多于一个的第二校正信号（例如，以控制振荡器） 接收的实例。 在一些实施例中，受控振荡器用于接收和/或发送另一信号，例如从GPS空中交通工具接收的信号。 在其他实施例中，所接收的实例来自GPS信号。 在另外的实施例中，使用固定频率振荡器，并且第二校正信号用于接收和/或发送诸如GPS信号的另一信号。