摘要
提出了一种新的随机共振算法 ,通过对系统的周期进行调节以实现系统的共振 .讨论了实现共振的系统参数 ,并对模拟信号和拉曼光谱实验信号进行了处理 .结果表明 ,该方法不仅可方便地用于弱化学信号的处理 ,克服检出信号的滞后现象 。
A new stochastic resonance algorithm for detection of weak chemical signal was proposed. The algorithm was achieved through periodic modulation to realize the system resonance. After a detailed discussion of the parameters in the system, a simulated signal and experimental noisy signals of a set of CCl 4 sample were analyzed by the method. It was proven that the proposed algorithm is very efficient in improving the signal to noise ratio of weak signals and a good performance of detection of weak signals with different S/N ratio can be ensured under the optimized conditions.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第4期605-608,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金 (批准号 :2 0 0 75 0 2 4)
