公开(公告)号：US20030086483A1

公开(公告)日：2003-05-08

申请号：US10265580

申请日：2002-10-07

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Inventor： Saul R. Dooley ,  Amites Sarkar ,  Andrew T. Yule

IPC: H04B001/69

CPC classification number: H04B1/70752 ,  G01S19/24

Abstract: The present invention provides for a method of acquiring direct sequence spread spectrum signals and in particular, GPS signals, including the steps of obtaining an integration result by avoiding integration over bit edges, and includes the steps of splitting the received signal (A) into a plurality of signal chunks alternatively across a respective plurality of channels (B,C), each channel being arranged to carry a series of signal chunks, the division being controlled in a timed manner responsive to the signal bit period so that the signal chunks of one of the series signals do not include bit edges.

Abstract translation: 本发明提供一种获取直接序列扩频信号，特别是GPS信号的方法，包括以下步骤：通过避免在比特边缘上的积分来获得积分结果，并且包括以下步骤：将接收信号（A）分成 多个信号块交替地跨越相应的多个通道（B，C），每个通道被布置成承载一系列信号块，该分配以响应于信号位周期的定时方式被控制，使得一个信号块的信号块 的串联信号不包括位边。

公开(公告)号：US20030128743A1

公开(公告)日：2003-07-10

申请号：US10319895

申请日：2002-12-13

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Inventor： Saul R. Dooley ,  Amites Sarkar ,  Andrew T. Yule

IPC: H04B001/707

CPC classification number: G01S19/29 ,  H04B1/7075 ,  H04B2201/70715 ,  H04L2027/0065

Abstract: The present invention provides for a method of receiving a signal spread over a frequency range, and in particular a direct sequence spread spectrum signals including the step of employing a Fast Fourier Transform (FFT) in the Doppler search. In particular, the invention relates to the receipt of spread spectrum signals such as those transmitted as part of a GPS system.

Abstract translation: 本发明提供一种接收在频率范围内扩展的信号的方法，特别是包括在多普勒搜索中采用快速傅立叶变换（FFT）的步骤的直接序列扩频信号。 特别地，本发明涉及扩展频谱信号的接收，例如作为GPS系统的一部分传输的信号。

公开(公告)号：US20020061055A1

公开(公告)日：2002-05-23

申请号：US09961983

申请日：2001-09-24

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Inventor： Andrew T. Yule ,  Amites Sarkar ,  Bryan D. Young ,  Martin S. Wilcox

IPC: H04K001/00

CPC classification number: G01S19/30

Abstract: A method of generating a time shifted replica signal (SLS) from a reference signal (SPS) comprising a series of samples (A to K) describing bits of a data message in which the sampling rate is at least twice the data message bit rate is disclosed. The method comprising the steps of determining the phases of the reference signal samples with respect to virtual epochs (41) of the data message bits of the reference signal (SPS); and composing the time shifted replica signal (SLS) from the reference signal samples as a function of the phases of the reference signal samples. Also disclosed is method comprising the step of composing the time shifted replica signal (SLS) from the reference signal samples (A to K), wherein the sampling rate of the replica signal (SLS) is the same as that of the reference signal (SPS), and wherein at least one reference signal sample (A to K) is not present in the time shifted replica signal (SLS).

Abstract translation: 一种从包括描述数据消息的比特的一系列样本（A到K）的参考信号（SPS）生成时移副本信号（SLS）的方法，其中采样率是至少两倍于数据消息比特率的数据消息， 披露 该方法包括以下步骤：确定参考信号样本相对于参考信号（SPS）的数据消息比特的虚拟时期（41）的相位; 以及作为参考信号样本的相位的函数从参考信号采样中组合时移复制信号（SLS）。 还公开了包括从参考信号样本（A至K）构成时移复制信号（SLS）的步骤的方法，其中复制信号（SLS）的采样率与参考信号（SPS）的采样率相同 ），并且其中至少一个参考信号样本（A至K）不存在于时移复制信号（SLS）中。