By means of the principle of correlation analysis, this paper introduces an approximate method for estimating signal-to-noise ratio on random noise background.
本文利用相关分析的原理，提出一种在随机噪音的背景上估算信噪比的近似方法。
The results demonstrate the cross correlation filter not only can suppress random noise in GPR signal but also confirm exactly the onset of reflection wave.
结果表明：应用该文所介绍的处理方法不但能有效压制探地雷达信号中的随机干扰而且能精确确定反射波的起跳点。
In a low light level wavefront sensor with image intensifier, the random noise of CCD output image is inhibited by delay correlation algorithm.
在带像增强器的微光波前传感器中，采用延时相关算法抑制CCD输出图像的随机噪声。
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