The paper analyses the energy and signal noise ratio (SNR) with grating to measure passive laser wavelength in real time, provides the theoretical basis for measurement and error from the method.
从理论上分析了利用光栅实时测量被动入射激光波长的能量分布及信噪比，给出了计算公式及误差分析。
This optimization object function was applied to the blood oxygen saturation measurement system and a higher signal-noise ratio was achieved.
将此目标函数应用到血氧饱和度无创测量系统中，提高了系统的信噪比。
The measure module has bigger Signal-to-Noise Ratio because adopting instrumentation amplifier, Programmable gain amplifier and accumulate measurement.
信号检测模块采用仪表放大、程控增益放大、积累检测方式等措施有效地提高了测量系统的信噪比。
The design of signal-to-noise ratio in the circuit was raised to make measurement more stable and reliable.
驱动系统的设计从硬件角度提高了回波信号的信噪比和稳定性。
The system can decrease the noise and can increase the ratio of signal to noise and the measurement precision.
触发判选与数据获取系统较大地抑制了噪声，提高了信噪比和测量精度。
The results were verified by numerical simulations, which show that this method significantly increases the measurement sensitivity with the signal-to-noise ratio increased at least 30%.
通过仿真计算验证了这种方法的效果。结果表明：该方法不仅可以有效地提高检测灵敏度，而且信噪比可以提升30%以上。
Reconstructing MR images from under-sampled measurement data using traditional reconstruction methods usually results in image artifacts and low signal to noise ratio.
用传统MR图像重建方法对降采样数据进行重建往往会产生严重的伪影或导致重建图像的信噪比下降。
Under the condition of low perfusion, the measurement of non-invasive saturation of pulse-blood oxygen is low-accuracy, lower signal-to-noise ratio (SNR) is one of the crucial causations.
在弱灌注条件下，无创脉搏血氧饱和度的测量存在着准确度不高的问题。传感器采集信号的信噪比低是导致该问题的主要原因之一。
Under the condition of low perfusion, the measurement of non-invasive saturation of pulse-blood oxygen is low-accuracy, lower signal-to-noise ratio (SNR) is one of the crucial causations.
在弱灌注条件下，无创脉搏血氧饱和度的测量存在着准确度不高的问题。传感器采集信号的信噪比低是导致该问题的主要原因之一。
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