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High-speed 1553B bus signal decoder design method

A bus signal and design method technology, applied in the field of information processing, can solve problems such as waveform distortion at the receiving end, and achieve significant effects and improve transmission reliability.

Inactive Publication Date: 2019-02-12
XIAN MICROELECTRONICS TECH INST
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Problems solved by technology

[0004] The present invention is to solve the problem of waveform distortion at the receiving end caused by high-speed 1553B bus signal reflection, dissipation and noise, and proposes a high-speed 1553B bus signal decoder design method, which can eliminate waveform distortion after transmission through the 1553B cable The 10Mbps 1553B bus signal can be correctly identified to realize the effective analysis of the 10Mbps 1553 bus signal

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  • High-speed 1553B bus signal decoder design method

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Embodiment Construction

[0020] The present invention is described in further detail below:

[0021] High-speed 1553B bus signal decoder design method (abbreviation decoder) of the present invention comprises the steps:

[0022] In step (1), the decoder performs glitch filtering on the received high-speed 1553B positive and negative terminal signals. The specific method is to use a high-speed clock for sampling, and take three consecutive samples to take the same value twice for output. The positive and negative terminal signals after this output That is, the signal after the glitch filtering (hereinafter referred to as the decoding signal), which can filter out the glitch of the sampling clock cycle width;

[0023] In step (2), the decoder divides the high-speed 1553B signal according to the Manchester encoding method, and divides the decoded signal state into initial state, sync header identification state, bit identification state, bit identification cycle state, parity bit identification state, an...

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Abstract

The invention discloses a high-speed 1553B bus signal decoder design method, comprising the following steps: firstly, the decoder performs glitch filtering on the received signals at high-speed 1553Bpositive and negative ends to obtain decoded signals; secondly, the decoder divides the decoded signals according to the Manchester coding mode, and divides the states of the decoded signals into an initial state, a sync header recognition state, a bit recognition state, a bit recognition loop state, a check digit identification state, an illegal state and an end state. The method provided by theinvention can correctly identify the 10Mbps 1553B bus signal with waveform distortion after transmission through a 1553B cable, and realize effective analysis of the 10Mbps 1553 bus signal.

Description

technical field [0001] The invention belongs to the technical field of information processing, and in particular relates to a design method of a high-speed 1553B bus signal decoder. Background technique [0002] In recent years, with the continuous improvement of the performance requirements of aerospace integrated electronic systems, the original 1Mbps1553B bus has been difficult to meet the requirements, and the climax of high-speed 1553 bus research has been set off internationally. In this case, break through the 1Mbps bus transmission rate of the 1553B bus, and develop and support high-speed 1553B series products. [0003] With the improvement of the 1553B bus rate, the problem of signal integrity of the 1553B bus has been brought, which is manifested in the waveform distortion of the receiving end caused by signal reflection, dissipation and noise, thus causing communication errors. How to effectively identify the correct signal during the receiving process of the hig...

Claims

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Application Information

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IPC IPC(8): H04L12/40H04L1/00
CPCH04L1/0036H04L12/40006
Inventor 陈小娟王延旗王剑锋
Owner XIAN MICROELECTRONICS TECH INST
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