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Receiving method and receiving device of spread spectrum signals

A technology of spread spectrum and receiving method, which is applied in the direction of electrical components, transmission systems, etc., can solve the problems of limiting anti-interference ability, achieve the effect of enhancing anti-interference ability, improving output signal-to-interference ratio, and reducing costs

Inactive Publication Date: 2011-10-12
NO 63 RES INST HEADQUARTERS OF THE GENERAL STAFF PLA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-interference ability of spread spectrum communication is at the expense of spectrum resources or transmission capacity. The limited spectrum resources and the current demand for large data transmission limit the further improvement of its anti-interference ability. It is necessary to find new methods to improve Its anti-interference ability

Method used

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  • Receiving method and receiving device of spread spectrum signals
  • Receiving method and receiving device of spread spectrum signals
  • Receiving method and receiving device of spread spectrum signals

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Embodiment Construction

[0041] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0042] The idea of ​​the present invention is to introduce blind source separation technology into the receiving end of spread spectrum communication, receive spread spectrum signals through at least two signal receiving channels, and then use blind source separation technology to separate useful signals from interference signals, thereby improving spread spectrum Communication anti-interference ability.

[0043] Blind source separation (BSS) is a current research hotspot in the field of signal processing and neural networks. It refers to the fact that when the source signal and transmission channel are completely unknown or only have a small amount of prior knowledge, only the observation mixed signal output by the sensor is used to analyze the source signal. Theories and techniques for estimating signals and transmission channels. Blind source separa...

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Abstract

The invention discloses a receiving method of spread spectrum signals and belongs to the technical field of spread spectrum communication. The method comprises the following steps of: respectively receiving the spread spectrum signals by using at least two antennae; carrying out blind source separation by using at least two received signals as observation signals; and identifying separation signals which are obtained by the blind source separation, and determining useful signals and interference signals. The invention also discloses a receiving device of the spread spectrum signals and a spread spectrum communication system. By the invention, the anti-interference performance of the spread spectrum communication is effectively improved, an output signal to interference ratio is improved, and practicability and flexibility are relatively high.

Description

technical field [0001] The invention relates to a receiving method of a spread spectrum signal, in particular to a receiving method of a spread spectrum signal which uses blind source separation to improve the anti-interference ability, and belongs to the technical field of spread spectrum communication. Background technique [0002] In spread spectrum communications (spread spectrum communications or spread spectrum communications for short), the bandwidth W of the transmission signal is much larger than the bandwidth R of the original signal, that is, the bandwidth expansion factor G=W / R of the spread spectrum signal is much greater than 1. The current spread spectrum communication technology mainly includes frequency hopping spread spectrum technology and direct sequence spread spectrum technology. Frequency hopping (FH) spread spectrum communication refers to the fact that the two sides or parties of the communication are controlled by the same synchronization algorithm ...

Claims

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Application Information

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IPC IPC(8): H04B1/7097H04B1/715
Inventor 于淼范菊莉
Owner NO 63 RES INST HEADQUARTERS OF THE GENERAL STAFF PLA
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