Unlock instant, AI-driven research and patent intelligence for your innovation.

Double-channel radiofrequency receiver capable of realizing multiplex analog-to-digital conversion output and data processing method of double-channel radiofrequency receiver

A radio frequency receiver and analog-to-digital conversion technology, which is applied in the field of wireless communication, can solve the problems of high production cost and difficulty in compatibility of single-channel radio frequency receivers, and achieve the effects of improving accuracy, saving chip packaging costs, and reducing costs

Active Publication Date: 2013-07-31
上海迦美信芯通讯技术有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the single-channel architecture, this dual-channel GNSS RF receiver will occupy twice the IO output pins, requiring greater production costs, and it is also difficult to be compatible with single-channel RF receivers

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
  • Double-channel radiofrequency receiver capable of realizing multiplex analog-to-digital conversion output and data processing method of double-channel radiofrequency receiver
  • Double-channel radiofrequency receiver capable of realizing multiplex analog-to-digital conversion output and data processing method of double-channel radiofrequency receiver
  • Double-channel radiofrequency receiver capable of realizing multiplex analog-to-digital conversion output and data processing method of double-channel radiofrequency receiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0061] Such as image 3 As shown, the dual-channel navigation radio frequency receiver with multiplexed analog-to-digital conversion output of the present invention is provided with a first channel and a second channel to receive two GNSS radio frequency signals correspondingly. The two GNSS radio frequency signals can be any combination of two-channel signals in Table 1.

[0062] First, the RF front-end circuit shared by the first and second channels receives the GNSS RF modulation signal, and completes the first down-conversion processing of the signal; the local oscillator frequency LOI and LOQ required for the first down-conversion, Provided by a frequency synthesizer phase-locked loop (RFPLL) shared by the first and second channels. The radio frequency front-end circuit includes a low noise amplifier 1 (LNA), an off-chip acoustic filter 2 (SA...

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 relates to a double-channel radiofrequency receiver capable of realizing complex analog-to-digital conversion output and a data processing method of the double-channel radiofrequency receiver. Double channels receive two GNSS (global navigation satellite system) radiofrequency signals to realize precise positioning, after analog-to-digital conversion processing is respectively carried out by the aid of identical sampling clocks in the two channels, analog-to-digital conversion data of the double channels are in multiplex conversion processing by a shared multiplex switching module, multiplex polar and amplitude signals are outputted by a group of IO (input and output) output pins which are completely consistent with a single-channel navigation radiofrequency receiver, packaging cost of a chip is saved, and the double-channel radiofrequency receiver is compatible with the single-channel receiver. The multiplex switching module further outputs a sampling output clock used for restoring data of the two channels from multiplex outputted data in a follow-up procedure.

Description

technical field [0001] The invention relates to a radio frequency chip in the field of wireless communication, in particular to a dual-channel radio frequency receiver with multiplexing analog-to-digital conversion output and a data processing method thereof. Background technique [0002] The global navigation and positioning system (GPS) has been widely used in vehicle navigation, vehicle tracking, time synchronization, surveying and mapping, ship or vehicle monitoring, geographic data collection, aerospace industry and so on. So far, the largest and most users of navigation and positioning systems are vehicle and hand-held navigation. In handheld navigators (PND, Portable Navigation Device) or similar applications, since the entire navigator is powered by batteries, the chip power consumption of the navigation system has a special meaning for this application: the lower the power consumption, the longer the use time longer. At present, in the market, companies like SiRF ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/13G01S19/36
Inventor 钟锦定倪文海钱晓辉徐文华
Owner 上海迦美信芯通讯技术有限公司