Unlock instant, AI-driven research and patent intelligence for your innovation.

Waveform recognition method in signal processing

A waveform identification and signal processing technology, applied in the field of signal processing, can solve problems such as difficult implementation, difficult selection of threshold and threshold value, difficulty in selection of threshold value and threshold value, etc.

Active Publication Date: 2007-05-23
ZTE CORP
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the signal waveform is unstable and there is a certain fluctuation in the overall waveform amplitude, it is very difficult to select the threshold value and threshold value, because the entire signal range cannot be shaped by a preset threshold value and threshold value. The above two methods not easy to implement
If the signal received by the receiver is sometimes strong and sometimes weak, it will also cause difficulties in selecting thresholds and thresholds.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waveform recognition method in signal processing
  • Waveform recognition method in signal processing
  • Waveform recognition method in signal processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] Figure 1 shows the waveform of the signal. In an actual system, the data of the signal waveform is obtained by sampling the signal through an analog-to-digital converter. The signal is an analog signal before sampling, and it is digitally sampled after an anti-aliasing low-pass filter. The sampled digital signal may contain unwanted noise, and the digital signal can be further eliminated by a digital low-pass filter to make the signal The waveform quality is improved.

[0044]Shown in Figure 2 is the waveform of the sampled digital signal after passing through the digital filter. Compared with the signal shown in Figure 1, the quality of the filtered signal waveform has been significantly improved.

[0045] Figure 3 intercepts the signal waveform at one end of the signal. In the figure, A, B, C, D, E, F, G, H, I, and J mark the endp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for recognizing the wave shape in signal process, wherein initializing wave shape parameter, using the signal number as the data resource of wave shape recognition; based on wave shape change tendency, finding out the rising edge or descending edge of wave shape; based on the signal edge type and the amplitude of signal edge, comparing it with stored wave shape parameter, judging if the signal is effective; when the signal edge is ineffective, finding rising edge or descending edge continuously; when the signal is effective, refreshing stored wave shape parameter; calculating out pulse width and judging pulse value, finding rising edge or descending edge continuously. The invention can recognize the signal with instable amplitude and variable strength.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a method for identifying waveforms in signal processing. Background technique [0002] In the field of communication, data information needs to be transmitted through electrical signals. In order to facilitate the representation of data, many signals are expressed in two states of 0 and 1, which are reflected in the strength of electrical signals as two different values ​​of high and low, a series of high and low intensities The signal represented constitutes the waveform of the signal. On the data receiving side, it is necessary to recover the pulse from the waveform of the signal to form a data form that is easy to judge. [0003] Commonly used waveform pulse shaping methods have limited clipping and threshold judgment. Limiting is by setting the high and low reference thresholds Href and Lref, the signal amplitude higher than Href will be limited to Href, and the signal ampl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L25/06H03K5/01
Inventor 张建冯涛王晓磊
Owner ZTE CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com