现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
17期
48-50
,共3页
随机共振%微弱信号检测%应用研究%双稳态系统
隨機共振%微弱信號檢測%應用研究%雙穩態繫統
수궤공진%미약신호검측%응용연구%쌍은태계통
stochastic resonance%weak signal detection%application research%bistable system
微弱信号是淹没在噪声中的小信号，且一般其信噪比比较低。微弱信号的检测在物理、电子和生物医学方面都具有重要的意义。依据随机共振理论，噪声在一定的条件下有利于微弱信号的检测。研究了随机共振的原理、双稳态系统中的随机共振现象及随机共振的应用研究现状。
微弱信號是淹沒在譟聲中的小信號，且一般其信譟比比較低。微弱信號的檢測在物理、電子和生物醫學方麵都具有重要的意義。依據隨機共振理論，譟聲在一定的條件下有利于微弱信號的檢測。研究瞭隨機共振的原理、雙穩態繫統中的隨機共振現象及隨機共振的應用研究現狀。
미약신호시엄몰재조성중적소신호，차일반기신조비비교저。미약신호적검측재물리、전자화생물의학방면도구유중요적의의。의거수궤공진이론，조성재일정적조건하유리우미약신호적검측。연구료수궤공진적원리、쌍은태계통중적수궤공진현상급수궤공진적응용연구현상。
Weak signal is a small signal,which is drowned in the noise,and generally with low SNR. Detection of weak signals is very important in engineering application,especially in the fields of physics,electronics and biomedicine. According to the theory of stochastic resonance,noise under certain conditions is conducive to detection of weak signals. The principle of stochastic resonance,stochastic resonance phenomenon in bistable systems and applied research status of stochastic resonance are studied in this paper.
