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Study on Weak Signal Detection Methods

  • Shikun Zhu
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 225)

Abstract

Weak signal detection technology refers to a technology which analyzes the noise’s production laws and researches the characteristics and correlation of signals with relevant electronics, physics, information, and computer knowledge and techniques, to detect the weak signals that are submerged by noises. In this paper, the basic principle of weak signal detection is discussed from the improvement of Signal-to-Noise Ratio (SNR) of signal processing system, and also the principles and methods of relevant detection, sample integral, time domain averaging, frequency domain detection, and time-frequency analysis are emphatically analyzed, expecting that different methods can be applied by people in detection according to the signals of different characteristics.

Keywords

Weak signal detection Relevant detection Sample integral Time domain averaging Frequency domain detection Time-frequency analysis 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.College of ScienceChina Three Gorges UniversityYichangP.R. China

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