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System and method for improving digital signal transmission accuracy under the condition of low bit width ad

A digital signal, low-precision technology, applied in the field of communication, can solve the problems of inaccurate model parameters and low signal transmission accuracy, and achieve the effect of improving transmission accuracy and improving transmission accuracy

Inactive Publication Date: 2019-11-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0007] Aiming at the above-mentioned deficiencies in the prior art, the system and method for improving digital signal transmission accuracy under low-bit-width AD conditions provided by the present invention solves the low signal transmission accuracy caused by the limited AD effective bit width in the prior art , so that the model parameters are not accurate enough

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  • System and method for improving digital signal transmission accuracy under the condition of low bit width ad
  • System and method for improving digital signal transmission accuracy under the condition of low bit width ad

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Embodiment Construction

[0050] Specific embodiments of the present invention are described below, so that those skilled in the art understand the present invention, the present invention is not limited to the scope of specific embodiments, to those of ordinary skill in the art, as long as various changes are in the appended claims Within the defined and determined spirit and scope of the present invention, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0051] Such as figure 2As shown, the system for improving digital signal transmission accuracy under the condition of low bit width AD includes a data processing module, a predistortion module, a DA module, a power amplifier module, an AD module, a data recovery module and a parameter calculation module;

[0052] Wherein, the data processing module, the pre-distortion module, the DA module, the power amplifier module, the AD module and the data recovery modu...

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Abstract

The invention discloses a system and a method for improving digital signal transmission accuracy under low-bit-width AD conditions. The system includes a sequentially connected data processing module, a predistortion module, a DA module, a power amplifier module, an AD module, and a data recovery module; The parameter calculation module connected to the output end of the pre-distortion module and the AD module; the signal input end of the data processing module is used as the signal input end of the system, and the signal output end of the data recovery module is used as the signal output end of the system. Under the condition of limited AD effective bit width, the present invention can further improve the transmission accuracy of the digital signal, and obtain the effect that can only be achieved by high bit width AD.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a system and a method for improving digital signal transmission precision under low-bit-width AD conditions. Background technique [0002] In modern communication systems, the DA and AD processes are common processing links for digital signals, because analog signals are more susceptible to interference than digital signals, so when the original digital signal is converted to DA, the analog signal is often distorted during transmission , resulting in a certain error between the restored digital signal and the original digital signal after the signal is converted by AD. Therefore, in the actual DA and AD processing, the data bit width of DA is generally higher (for example, a data is represented by a 16-bit binary code), while the data bit width of AD is low (for example, a data is represented by a 12-bit binary code) In a complex communication system, due to ma...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/04H04L25/49
CPCH04B1/04H04B2001/0408H04L25/49
Inventor 胡明林耿坤
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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