公开(公告)号：US08755472B2

公开(公告)日：2014-06-17

申请号：US13937757

申请日：2013-07-09

Applicant: QUALCOMM Incorporated

Inventor： Qinfang Sun ,  Wen-Chang Yeh ,  Ho-Chung Chen

IPC: H04L27/06

CPC classification number: H04L7/0016 ,  G01S19/24 ,  G01S19/30 ,  G01S19/36 ,  G01S19/37

Abstract: A high sensitivity GPS receiver includes an acquisition engine and a tracking engine. The acquisition engine processes GPS satellite data at data rate that is substantially equal to twice the coarse acquisition (CA) code chip rate. This data rate advantageously enables the acquisition engine to process GPS satellite data with relatively less hardware area than traditional GPS acquisition approaches. In one embodiment, the high efficiency acquisition engine may be over-clocked, thereby allowing different phases of a CA code to be correlated quickly. The tracking engine can advantageously process GPS satellite data at a data rate that does not have an integer relationship to the CA code chip rate.

Abstract translation: 高灵敏度GPS接收机包括采集引擎和跟踪引擎。 采集引擎以基本上等于粗略采集（CA）码片速率的两倍的数据速率处理GPS卫星数据。 该数据速率有利地使得采集引擎能够以比传统的GPS采集方法更少的硬件面积来处理GPS卫星数据。 在一个实施例中，高效率采集引擎可以被超频，从而允许CA代码的不同阶段快速相关。 跟踪引擎可以以不与CA码片速率的整数关系的数据速率有利地处理GPS卫星数据。

公开(公告)号：US20130294549A1

公开(公告)日：2013-11-07

申请号：US13937757

申请日：2013-07-09

Applicant: QUALCOMM Incorporated

Inventor： Qinfang Sun ,  Wen-Chang Yeh ,  Ho-Chung Chen

IPC: H04L7/00

CPC classification number: H04L7/0016 ,  G01S19/24 ,  G01S19/30 ,  G01S19/36 ,  G01S19/37

Abstract: A high sensitivity GPS receiver includes an acquisition engine and a tracking engine. The acquisition engine processes GPS satellite data at data rate that is substantially equal to twice the coarse acquisition (CA) code chip rate. This data rate advantageously enables the acquisition engine to process GPS satellite data with relatively less hardware area than traditional GPS acquisition approaches. In one embodiment, the high efficiency acquisition engine may be over-clocked, thereby allowing different phases of a CA code to be correlated quickly. The tracking engine can advantageously process GPS satellite data at a data rate that does not have an integer relationship to the CA code chip rate.

Abstract translation: 高灵敏度GPS接收机包括采集引擎和跟踪引擎。 采集引擎以基本上等于粗略采集（CA）码片速率的两倍的数据速率处理GPS卫星数据。 该数据速率有利地使得采集引擎能够以比传统的GPS采集方法更少的硬件面积来处理GPS卫星数据。 在一个实施例中，高效率采集引擎可以被超频，从而允许CA代码的不同阶段快速相关。 跟踪引擎可以以不与CA码片速率的整数关系的数据速率有利地处理GPS卫星数据。