Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for 8PSK vector analysis through carrier wave synchronization

A carrier synchronization and vector analysis technology, applied in the direction of phase modulation carrier system, etc., can solve the problems of inconvenient engineering implementation, complex carrier synchronization circuit, and large amount of calculation, and achieve the effect of convenient engineering implementation, reduction of calculation amount, and simplified circuit.

Active Publication Date: 2016-06-29
NO 50 RES INST OF CHINA ELECTRONICS TECH GRP
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] From the above analysis, it can be seen that the eight-phase Costas ring realizes the carrier synchronization circuit is complicated, the calculation amount is large, and it is inconvenient for engineering implementation

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
  • Method for 8PSK vector analysis through carrier wave synchronization
  • Method for 8PSK vector analysis through carrier wave synchronization
  • Method for 8PSK vector analysis through carrier wave synchronization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0042] The present invention adopts the orthogonal Costas loop to simplify the carrier synchronization design, corrects the frequency error and the initial phase error of the signal, and then obtains the actual signal vector point through bit synchronization, and calculates the distance between the actual signal vector point and its corresponding reference constellation point Error, realize the vector analysis of 8PSK signal.

[0043] Vector signal analysis parameters mainly include magnitude erro...

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 provides a method for 8PSK vector analysis through carrier wave synchronization. The method comprises the following steps: 1, calculating phase error output delta phi(n) of a phase detector; 2, calculating an actual signal vector point by use of bit synchronization; and 3, according to the actual vector point, determining a reference vector point Ri, and calculating errors between the actual signal vector point and the corresponding reference vector point, including magnitude errors, phase errors, error vector magnitude and IQ deviation errors, i.e., 8PSK modulation vector analysis parameter values. Compared to a conventional synchronization method, the method provided by the invention simplifies the circuit, reduces the computational complexity and facilitates engineering realization.

Description

technical field [0001] The invention relates to the technical field of digital communication testing, in particular to a carrier synchronization method for 8PSK vector analysis. Background technique [0002] 8PSK digital modulation can provide higher bit rate and frequency band utilization. It is widely used in data relay satellite communication, cable TV network high-speed data transmission and other fields. It is very important to measure the performance of 8PSK digital modulation. Vector analysis is to measure 8PSK digital A means of modulating performance. Vector analysis measures the degree to which the actual modulated signal deviates from the ideal signal and calculates various errors of the digitally modulated signal to achieve the purpose of evaluating the modulation quality. Vector signal analysis parameters mainly include magnitude error (MagnitudeError, MagErr), phase error (PhaseError, PhaseErr), error vector magnitude (ErrorVectorMagnitude, EVM) and IQ offset ...

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): H04L27/22
Inventor 钱者凤杨文举金琦
Owner NO 50 RES INST OF CHINA ELECTRONICS TECH GRP
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