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A Multipath Separation Method Based on Extended Binary Phase Shift Keying Transmission System

A technology of binary phase shift keying and separation method, which is applied in the field of multipath separation based on extended binary phase shift keying transmission system, can solve the problems of small search range and unrigorous conditions, and achieve simple and effective anti-fading, Simple algorithm, rigorous and reliable effect without interference conditions

Active Publication Date: 2018-12-28
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(2) The search range for N is too small
(3) The condition of no multipath interference is not strict

Method used

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  • A Multipath Separation Method Based on Extended Binary Phase Shift Keying Transmission System
  • A Multipath Separation Method Based on Extended Binary Phase Shift Keying Transmission System
  • A Multipath Separation Method Based on Extended Binary Phase Shift Keying Transmission System

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Abstract

The invention provides an extension binary phase shift keying transmission system-based multipath separating method which comprises the following steps: separation distance between each time delay path and a main path is calculated according to a carrier wave cycle number occupied by gain and phase jumps of signals of each path; the carrier wave cycle number xi which is a distance between a code element start point of signals of an ith path and a code element start point of the same code element of signals of the main path is set, an intermediate parameter yi=xi%N of a code element modulation parameter is set, and separating conditions are set according to multipath transmission channel conditions; an intermediate parameter of each channel is enabled to satisfy the separating conditions via adjustment of a code element cycle modulation parameter N; value of N which is obtained at last is an optimal code element cycle modulation parameter under current multipath channel conditions. Via use of the extension binary phase shift keying transmission system-based multipath separating method, system performance optimization and code cycle minimization can be realized and information transmission efficiency can be improved.

Description

technical field The present invention relates to high-speed data transmission on multi-path channel in digital communication system, in particular to a multi-path separation method based on extended binary phase-shift keying transmission system. Background technique With the development of modern society, high-efficiency modulation for the purpose of reducing occupied bandwidth and increasing information transmission rate (that is, increasing spectrum utilization, the dimension is bps / Hz) is the current research focus in the information field. Extended Binary Phase Shift Keying (EBSPK) has attracted much attention as a representative of high-efficiency modulation, and its research in multipath fading channels is particularly important, which will lay a good foundation for the practical use of this technology. In the following, EBPSK modulation, EBPSK demodulation, and existing multipath estimation and separation technologies are taken as examples for illustration. 1. EBPSK...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/20
CPCH04L27/20
Inventor 冯熳彭珊汪英
Owner SOUTHEAST UNIV