Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Signal clipper and its method

A clipping and signal technology, which is applied in the field of signal processing, can solve problems such as the difficulty of programmable gate arrays, achieve remarkable results, reduce design difficulty and design cost, and achieve low signal peak-to-average ratio

Inactive Publication Date: 2010-02-17
HUAWEI TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This puts forward high requirements for real-time performance, which is not suitable for hardware implementation, and adds great difficulties to the actual design of field programmable gate array (FPGA) or application-specific integrated circuit (ASIC).

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
  • Signal clipper and its method
  • Signal clipper and its method
  • Signal clipper and its method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0064] The present invention expands the existing PCF technology, by performing a limiting and clipping on the input signal first, and then applying the PCF technology to the input signal after the limiting and clipping, so that the prediction is more effective, that is, after the clipping process While predicting the change of the input signal, it can also predict the interpolation effect of the subsequent PSF link, including the prediction of the effect of combining in multi-carrier signal applications, so as to obtain better clipping performance. The above-mentioned method may be called the combination of clipping prediction and clipping filtering (CPCF) technology. The present invention can also be regarded as an extension of the existing CF technology, by per...

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

This invention discloses a signal clipping device. It comprises a filter clipping processor used to make first filtering and clipping to the input signal; a prediction clipping processor used to makeone or more than one prediction and clipping process to the input signal and sends the output signal being through the prediction and clipping process to the above filtering and clipping processor. The invention also discloses a method by using the above device. The invention raises a new technology combining the cascade connection clipping prediction with filter clipping, and can effectively solve the disadvantage existing in current technology that is at condition of losing certain signal domain performance the ideal peak-to-average power ratio can not be obtained. The invention can get lower peak-to-average power ratio.

Description

technical field [0001] The invention relates to signal processing of a communication system, in particular to a signal clipping device and method for reducing the signal peak-to-average ratio. Background technique [0002] At present, clipping technology can be divided into 1-time speed (1X) clipping and n-time speed (nX) clipping according to the characteristics of processing samples; according to the processing method, it can be divided into the method of combining clipping and filtering (CF), And the combination of prediction, clipping and filtering (PCF) method. [0003] The advantage of 1X clipping technology is that there is no need to consider the signal spectrum spread caused by clipping in the subsequent process, because the subsequent pulse shaping filter (PSF) link will process the clipped signal to obtain a standard that meets the requirements of the communication system spectrum signal. However, the disadvantage of the 1X clipping technology is that the damage...

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): H04L25/08H04B15/00
Inventor 顾伟东
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com