Method and system for reducing harmonic interference in multipath propagation environment

By adding labels to each signal component at the receiving end, a signal waveform graph is generated, similarity and amplitude change amounts are obtained, mapping relationships are established, box maps are generated and signal components are screened, and the problem of signal processing capabilities being interfered with by poor-quality signals in a multipath propagation environment is solved, and the effect of reducing harmonic interference, reducing computing resource consumption and improving signal processing efficiency is achieved.

CN119892582AActive Publication Date: 2025-04-25CHENGDU XINGREN TECH CO LTD
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Patent Information

Application Number
CN202510355696.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2025-04-25
Estimated Expiration
2045-03-25

AI Technical Summary

Technical Problem

In a multipath propagation environment, the ability of the receiving end to process signals is disturbed by a large number of complex inferior signals, resulting in high consumption of computing resources, increased difficulty in signal processing, and reduced efficiency.

Method used

By receiving multiple signal components from multiple signal propagation paths, label identification is added to each signal component, including reception time and antenna coordinates, a signal waveform graph is generated, similarity and amplitude change between the standard sine waveform graph and the signal waveform graph are obtained, a mapping relationship between the similarity value and the amplitude change is established, a box graph is generated, and signal components that are not disturbed by harmonics are selected.

Benefits of technology

It effectively reduces harmonic interference in multipath propagation, reduces the consumption of computing resources by the receiver, reduces the difficulty of signal processing, improves signal processing efficiency, and ensures the signal quality of the receiver.

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Abstract

The invention belongs to the technical field of wireless communication, and relates to a method and a system for reducing harmonic interference in a multipath propagation environment. Adding a tag identifier to each signal component; generating a signal oscillogram and an amplitude variation of each signal component; obtaining a similarity value between the standard sinusoidal waveform diagram and each signal waveform diagram; establishing a mapping relation between the similarity value and the amplitude variation according to the label identifier; generating a first box plot according to the similarity value, and generating a second box plot according to the amplitude variation; extracting a similarity value exceeding the end point of the lower tassel line in the first box plot to obtain a first data set; extracting the amplitude variation exceeding the end point of the upper tassel line in the second box plot to obtain a second data set; judging whether one or more mapping relationships exist between the first data set and the second data set or not; and if so, abandoning the signal component corresponding to each mapping relation. According to the invention, harmonic interference in multipath propagation can be reduced, consumption of computing resources by a receiving end is reduced, and the signal processing difficulty is reduced.
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Citation Information

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