background signal suppression

基本解释

In order to evaluate results of pretreatment, two definitions of signal-to-noise ratio and background suppression factor were given.
为了评价预处理结果，定义了两个评价参数——信噪比和背景抑制因子。
Current-mode background suppression circuit eliminates background current. Logarithmical signal conversion from current to voltage is implemented by the adaptive photoreceptor.
首先，经电流模背景抑制电路消除背景电流后的红外信号经自适应光接收器实现电流到电压的对数转换；
The infrared images of low signal-to-noise ratio(SNR)are analyzed according to the characteristics of infrared images. A preprocessing method based on background suppression is proposed.
根据红外图像成像的特点，对低信噪比红外图像进行了分析，提出了基于背景抑制的预处理方法；