signal-nosie ratio

Raw thermal images acquired by pulsed thermography ( PT) usually have low signal noise ratio ( SNR) and temperature contrast.

脉冲热像检测中直接获取的原始热像往往信噪比较低、对比度较差。

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The photoelectricity switch IC used to measure the peak wavelengh can greatly promote the signal-to-noise ratio of the measured narrow pulse laser and detect the near infrared laser signal and visible wavelength laser signal.

设计了一种基于瞬态峰值检测的光电转换集成电路，能显著提高测窄脉冲激光时的信噪比，使系统能有效地监测其波长在可见光区和近红外区的各种激光信号。

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Study on Testing Video Signal to Noise Ratio of Television Tracking System

电视跟踪系统视频信噪比测试研究

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Signal to Noise Ratio ( SNR ) : The ratio of the signal to the random noise setdata.

全炉膛火焰的燃烧过程伴随着大量动态的随机噪声,这些噪声信号必须消除.

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Based on some reasonable hypothesizes, the factors influencing the detection probability were deduced, including the target size, the size of the sampling node which contains the target, the signal-noise ratio of the input image and the uniformity of the target.

在一定的假设条件下，从理论上推导出了模型中影响小目标预检测概率的各个因素，包括目标大小、目标所在采样节点的大小、输入图像信噪比和目标均匀性参数等。

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The relation between the wavelet threshold and the signal-to-noise ratio in wavelet image denoise is presented. From many simulations of wavelet image denoise, the unimodal property between the wavelet threshold and the signal to noise ratio ( SNR) under different noise strength was developed.

本文研究了小波图像去噪过程中阈值与信噪比的关系，通过大量的仿真得出了小波图像消噪过程中，在不同的噪声强度下，信噪比与小波阈值之间存在单峰性的特征。

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The gain clamping character of LOA was simulated. The extinction ratio, chirp and eye opening ratio of converted signal were calculated for different power and rate of input signal.

仿真了LOA的增益钳制特性，模拟计算了信号光功率和速率对转换后信号的消光比、啁啾和眼图张开度的影响。

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For the requirements of the signal-to-noise ratio of lower in part of telephone channel the algorithm to convergence in the time domain and frequency domain step by step.

针对部分线路上语音信噪比较低的实际，引入谱熵进行分级检测，将算法在时域和频域逐级进行收敛。

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It is proved by the analysis of the simulated signals and different signal to noise ratio experimental data that this method can effectively determine the filter center frequency and bandwidth, thereby improving the signal to noise ratio and the diagnosis of bearing faults.

通过对仿真信号和不同信噪比实验数据的分析，证明此方法能够有效确定滤波中心频率和带宽，从而提高信号的信噪比，实现对轴承故障的诊断。

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Signal-to-Noise Ratio of Light Target for Laser Shooting Simulator

激光模拟器光靶信噪比研究

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