Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for reducing harmonic interference on GPS signal receiving

A GPS signal and harmonic interference technology is applied in the field of devices for reducing harmonic interference to GPS signals, and can solve the problems of RF signals easily leaking to GPS receivers, distortion, and affecting GPS satellite positioning of wireless communication devices.

Active Publication Date: 2015-06-03
AIROHA TECHNOLOGY CORPORATION
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the RF transceiver transmits RF signals, the transmitted RF signals are easily leaked into the receiving path of the GPS receiver
If the harmonics of the leaked signal fall on the receiving frequency band of the GPS receiver, the GPS receiver will suffer from co-channel harmonic interference, then the GPS signal received by the GPS receiver will be distorted, and GPS satellite positioning affecting wireless communication devices

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for reducing harmonic interference on GPS signal receiving
  • Device and method for reducing harmonic interference on GPS signal receiving
  • Device and method for reducing harmonic interference on GPS signal receiving

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0056] see figure 1 , is a schematic structural diagram of an embodiment of the wireless communication device of the present invention. The wireless communication device 100 of the present invention can be a cellular phone or a smart phone, which includes a radio frequency (RF) transceiver module 10 and a GPS (Global Positioning System) signal receiving path 20 . The RF transceiver module 10 is connected to a first antenna 51 for wireless communication with a base station 53 via the first antenna 51 . In addition, the GPS signal receiving path 20 is connected to a second antenna 52 for receiving an analog GPS signal (GPS-A) transmitted by a satellite 54 via the second antenna 52 .

[0057] Wherein, the RF transceiver module 10 transmits an RF signal to the base station 53 via the first antenna 51 , or receives an RF signal t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device and a method for reducing the harmonic interference on GPS signal receiving. The device comprises a radio frequency transmitting and receiving module, a GPS signal receiving path and a harmonic distortion pre-estimator, wherein the radio frequency transmitting and receiving module generates a first signal to be emitted; the harmonic distortion pre-estimator constructs a pre-estimated harmonic distortion sample according to the first signal; the GPS signal receiving path receives an analog GPS signal and converts the analog GPS signal into a digital GPS signal; the pre-estimated harmonic distortion sample is subtracted from the digital GPS signal to obtain an accurate digital GPS signal. Therefore, the harmonic interface on the GPS signal in a digital domain can be eliminated by a digital mode, so that distortion of the GPS signal is reduced.

Description

technical field [0001] The invention relates to a device and method for reducing harmonic interference to GPS signals, in particular to a device and method for eliminating harmonic interference of GPS signals in a digital manner. Background technique [0002] As a result of the trend, more and more communication functions are integrated into a single wireless communication device. For example, a radio frequency (Radio frequency, RF) transceiver and a GPS (Global Positioning System) receiver are simultaneously integrated into a wireless communication device. The wireless communication device uses the RF transceiver to communicate wirelessly with a base station with RF signals, and uses the GPS receiver to receive GPS signals. When the RF transceiver of the wireless communication device receives or sends RF signals, the GPS receiver can simultaneously receive GPS signals and continue to perform the function of GPS satellite positioning. [0003] However, when the RF transcei...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01S19/21
CPCG01S19/21G01S19/37
Inventor 林珩之侯文生林建成
Owner AIROHA TECHNOLOGY CORPORATION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com