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IQ compensation parameter acquisition method, device, computer equipment and storage medium

A technology of compensation parameters and acquisition methods, applied in digital transmission systems, multi-carrier systems, electrical components, etc., can solve problems such as inability to easily obtain IQ compensation parameters

Active Publication Date: 2021-08-20
ZHUHAI JIELI TECH
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Problems solved by technology

[0004] Based on this, it is necessary to provide a simple and convenient IQ compensation parameter acquisition method, device, computer equipment and storage medium for the problem that the IQ compensation parameter cannot be obtained conveniently

Method used

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  • IQ compensation parameter acquisition method, device, computer equipment and storage medium
  • IQ compensation parameter acquisition method, device, computer equipment and storage medium
  • IQ compensation parameter acquisition method, device, computer equipment and storage medium

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Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0034] In one of the examples, as figure 1 As shown, a method for obtaining IQ compensation parameters is provided, including the following steps:

[0035] S100: Receive a constant envelope signal.

[0036] Furthermore, after the pulse signal of equal amplitude oscillation is modulated, the amplitude of each oscillation will change. Connect the highest point and the lowest point of each oscillation signal with a dotted line. The shape of the dotted line is the envelope of the pulse signal. The constant-envelope signal refers to a signal in which the amplitude of the peak...

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Abstract

The present application relates to a method, device, computer equipment and storage medium for obtaining IQ compensation parameters. By receiving a constant envelope signal, the I signal, the Q signal and the sample point index in the constant envelope signal are obtained; according to the I signal, The Q channel signal and the sample point index obtain the initial IQ compensation parameter, which corresponds to the sample point index; according to the sample point index, the initial IQ compensation parameter is trained by the least mean square algorithm, and the final IQ compensation parameter is obtained. The whole process In the method, the initial IQ compensation parameters are quickly and conveniently searched through the sample point index, and the initial IQ compensation parameters are trained through the least mean square algorithm to obtain the final IQ compensation parameters. parameter.

Description

technical field [0001] The present application relates to the technical field of digital communication, in particular to an IQ compensation parameter acquisition method, device, computer equipment and storage medium. Background technique [0002] With the development of digital communication technology, the quality of signal transmission is also constantly improving. In the traditional data communication process, the intermediate frequency circuit basically has IQ two-way signals. The ideal I-way signal and Q-way signal have the same amplitude and phase. The difference is 90°. However, during the transmission of the IQ two-way signals, the IQ mismatch is caused by internal device loss and mutual interference between the two-way signals. [0003] In the prior art, IQ data is calibrated by calculating IQ compensation parameters, but the calculation method of calculating IQ compensation parameters is too complicated, the calculation degree is high, and the time consumption is l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/38
CPCH04L27/3863H04L27/3872
Inventor 唐德刚
Owner ZHUHAI JIELI TECH
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