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A wideband power amplifier linearization processing method and system for a wireless communication system

A technology of a wireless communication system and a processing method, which is applied in the field of broadband power amplifier linearization processing methods and systems, can solve the problems of easy data loss, increased bit error rate, low system efficiency, etc. The effect of ensuring communication quality

Active Publication Date: 2021-11-09
HUNAN NOVASKY ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the digital baseband modulation signal is a broadband communication signal, and the power amplifier is a broadband response system. A certain degree of nonlinear distortion will be generated during the power amplification process. Further, due to the existence of amplitude distortion and phase distortion, the amplitude distortion will lead to signal transmission. The radiated power of the receiver is uneven, the signal strength becomes weaker, the system efficiency becomes lower, the limit transmission distance becomes shorter, and the data transmission rate becomes lower; the phase distortion causes the correlation of the receiver to deteriorate, the constellation loses lock, the bit error rate increases, and the data Easy to lose, therefore, it will lead to a decrease in the efficiency of the entire wireless communication system and poor communication quality

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  • A wideband power amplifier linearization processing method and system for a wireless communication system
  • A wideband power amplifier linearization processing method and system for a wireless communication system
  • A wideband power amplifier linearization processing method and system for a wireless communication system

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Embodiment 1

[0047] Such as figure 1 As shown, this embodiment provides a wideband power amplifier linearization processing method for a wireless communication system, including:

[0048] Obtaining an input digital baseband modulation signal of the wireless communication system to be processed, and performing filtering processing on the digital baseband modulation signal;

[0049] Perform pre-distortion processing on the filtered digital baseband modulation signal;

[0050] The pre-distorted digital baseband modulation signal is amplified and output.

[0051] The above-mentioned broadband power amplifier linearization processing method for the wireless communication system can improve the efficiency of the wireless communication system and ensure the communication quality by performing pre-distortion processing on the filtered digital baseband modulation signal.

[0052] As a preferred implementation manner of this embodiment, performing pre-distortion processing on the filtered bandwidt...

Embodiment 2

[0087] Corresponding to the foregoing method embodiments, this embodiment provides a wideband power amplifier linearization processing system for a wireless communication system, including:

[0088] The digital baseband is used to obtain the input digital baseband modulation signal of the wireless communication system to be processed;

[0089] a filter, configured to filter the digital baseband modulation signal;

[0090] A predistorter, used for performing predistortion processing on the filtered digital baseband modulation signal;

[0091] The wideband power amplifier is used to amplify the predistorted digital baseband modulation signal and output it.

[0092] The execution steps of the above-mentioned devices have been described in detail in the above-mentioned Embodiment 1, and will not be repeated here.

[0093] It is worth emphasizing that the wideband power amplifier linearization processing method for a wireless communication system provided by the present invention...

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Abstract

The present invention relates to the technical field of wireless communication, and discloses a method and system for linearizing a broadband power amplifier of a wireless communication system, so as to improve the efficiency of the wireless communication system and ensure the quality of communication; the method includes acquiring the input of the wireless communication system to be processed The digital baseband modulates the signal, and performs filter processing on the digital baseband modulated signal; performs pre-distortion processing on the filtered digital baseband modulated signal; amplifies the pre-distorted digital baseband modulated signal and outputs it.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and system for linearizing a broadband power amplifier in a wireless communication system. Background technique [0002] Wireless communication system transmitters usually use digital baseband modulation signals for digital attenuation linear amplification, and then up-convert to RF signals to drive broadband power amplifiers. The signals are radiated after being amplified by high-gain analog operational amplifiers. In this process, the digital baseband modulation signal is a broadband communication signal, and the power amplifier is a broadband response system. A certain degree of nonlinear distortion will be generated during the power amplification process. Further, due to the existence of amplitude distortion and phase distortion, the amplitude distortion will lead to signal transmission. The radiated power of the receiver is uneven, the signal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F3/20
CPCH03F3/20
Inventor 李征王生水韩明华
Owner HUNAN NOVASKY ELECTRONICS TECH