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A FPGA-based digital receiver system and radio frequency analog-to-digital conversion method

A digital receiver and analog-to-digital conversion technology, applied in the field of communications, can solve problems such as the inability to support broadband applications, and achieve the effect of avoiding loss and distortion and improving integration.

Active Publication Date: 2020-04-28
SOUTH CHINA UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

This architecture uses too many analog components, the receiver has a lot of power consumption and distortion, and cannot support wideband applications

Method used

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  • A FPGA-based digital receiver system and radio frequency analog-to-digital conversion method
  • A FPGA-based digital receiver system and radio frequency analog-to-digital conversion method
  • A FPGA-based digital receiver system and radio frequency analog-to-digital conversion method

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] The first embodiment of the present invention discloses a radio frequency analog-to-digital conversion method based on an FPGA-based digital receiver system, such as figure 1 shown, including the following steps:

[0042] Step S1, dividing the radio frequency signal of any frequency band into (n-1) paths;

[0043] Step S2, filtering ...

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Abstract

The invention discloses a digital receiver system based on FPGA and a radio frequency analog-to-digital conversion method. The system comprises a power distribution module, a reference signal generation module, a radio frequency analog-to-digital conversion module and a digital signal processing module. The radio frequency analog-to-digital conversion method comprises the following steps of: dividing a radio frequency signal in any frequency band into (n-1) paths; the digital reference signal generated by FPGA is filtered to obtain the analog reference signal. A digital signal is obtained by analog-to-digital conversion of a radio frequency signal in any frequency band. The direct RF analog-to-digital conversion of the analog signal can be realized by the RF analog-to-digital method. For RF signals of different frequency bands and different standards, the whole signal processing process from RF quantization to baseband demodulation is carried out in the digital domain of FPGA, which eliminates the analog local oscillator, mixer and IF filter, and effectively avoids the loss and distortion of analog devices.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an FPGA-based digital receiver system and a radio frequency analog-to-digital conversion method. Background technique [0002] In the past two decades, mobile wireless communication has experienced an astonishing increase in the throughput requirements of users, mobile terminals, and multimedia. Mobile cellular standards have evolved from 2G (GSM), 3G (UMTS) to mature commercial 4G (LTE ), the fifth generation mobile communication technology (5G) is also under study. Broadband communication network is the development trend of wireless communication in the future. The data rate is getting higher and higher, and the spectrum bandwidth is getting wider and wider. The new generation of wireless communication standards must have the support of new technologies. [0003] The new wireless communication network will be very dense, flexible and heterogeneous, which brings many new...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/00H04B1/16H03M1/12
CPCH03M1/1245H04B1/0003H04B1/005H04B1/16
Inventor 杨俊林巨征章秀银
Owner SOUTH CHINA UNIV OF TECH
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