Cable Node Communication Using Spectral Conjugate Reversal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Communication between nodes connected over a cable is hindered by distortions caused by the cable, leading to low data accuracy and ineffective communication due to transmission losses, group delay dispersion, and frequency selective fading.
Innovation Solution
A communication method and system where a third node performs conjugate reversal processing on the electromagnetic wave signal, making the amplitude-frequency curves axisymmetric and phase-frequency curves centrosymmetric, reducing distortion by counteracting the initial and subsequent distortions encountered during transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromagnetic wave signal is transmitted over the cable, then communication between nodes is enabled, but the signal is distorted and data accuracy is low
Solution Approach 1:
The patent applies preliminary anti-action by performing conjugate reversal processing on the electromagnetic wave signal before transmission. This pre-processing creates a signal with reversed spectral characteristics that will counteract the distortion effects of the cable during transmission, thereby improving both communication reliability and data accuracy simultaneously
Solution Approach 2:
The patent converts the harmful distortion effect of the cable into a beneficial factor by applying conjugate reversal processing. The signal is deliberately modified to have spectral characteristics that will be reversed by the cable's distortion, transforming the cable's harmful effect into a mechanism that restores the original signal at the receiver
2Device complexity
If conventional signal transmission is used, then communication is simple, but distortion cannot be compensated
Solution Approach 1:
The patent applies parameter changes by modifying the spectral parameters of the electromagnetic wave signal through conjugate reversal processing. This involves changing the phase and amplitude characteristics of different frequency components, creating a transformed signal that will compensate for cable distortion while maintaining relatively simple processing complexity
Data Source
AI summary
A communication method, apparatus, and system are provided, and belong to the field of communication technologies. The method includes: After receiving a first electromagnetic wave signal sent by a first adjacent node, a target third node performs target processing on the first electromagnetic wave signal to obtain a second electromagnetic wave signal, and sends the second electromagnetic wave signal to a second adjacent node. A first node, at least one third node, and a second node are sequentially disposed on a cable, and among these nodes, the target third node is adjacent to the first adjacent node and the second adjacent node. The target processing includes processing used to cause conjugate reversal of a spectrum of the electromagnetic wave signal.