查询词典 SNR

The study also evaluates the effects of FbAANC headset on speech intelligibility on a disyllabic Mandarin word discrimination test platform. We expect someone under the noisy environment in SNR equal 0,–5,–10,-15,-20 and –25 dB, the noise cancellation technique could either improve the speech discrimination effectively. Finally, the SNR below -10dB, the mean WDT score with FbAANC headset was superior to without FbAANC headset 13 to 32% through 30 subjects of normal hearing threshold for evaluation. These results suggest that the FbAANC headset would be useful for hearing protection in workplaces with high levels industrial noise.

同时，本论文亦透过华语双字词语音辨识力测验，以评估此噪音消除技术对於语音理解力的影响，期望在SNR为0，-5，-10，-15，-20和-25dB的环境下，暸解噪音消除技术能否有效提升语音辨识力；经过30位正常听力的受测者之评估，我们可以得到当讯噪比在-10 dB以下时，经过噪音消除后的语音辨识力成绩可明显地提升13 to 32%，因此，本噪音消除耳机确实可以作为耳机防护以提供给工人对抗高分贝的工厂噪音。

A new feature, the variance of low-band energy ratio, is also introduced, which produces large improvements in classification accuracy at low SNR Performance of the proposed system is evaluated for different SNR.

考察了系统在不同的信噪比环境下的分类性能。

With Walnut Street model as its foundation, observed data were analyzed and processed, the SNR variation models during intermediate and long terms were built, combined with traditional Watterson channel model, the specified HF channel was simulated through SNR prediction.

该算法以Walnut Street信道模型为基础，通过对实际观测数据进行分析处理，建立接收端信噪比变化的中期和长期变化统计模型，联合Watterson模型实现信道模拟。

In this paper, the noise sources of the EBCCD imaging system have been analyzed and a SNR model has been established. It shows that the SNR of output image is related not only to the input illuminance on the cathode but also to the spatial frequency of the input image. This has been proved by a series of experiment. Unperfectness of the detecting equation has been pointed out in this paper.

分析了电子轰击电荷耦合器件微光成像系统的噪声源，建立了系统的信噪比模型，指出了在微光成像系统本身的增益和量子效率等性能确定的条件下，成像系统输出图像信噪比不仅仅与输入面照度有关，还与输入图像的空间频率有关，并通过实验得到了证明，指出了经典的图像探测方程的不完善之处。

In the bio-electric signal mode, SNR is 50dB, effective number of bits is 10-bit; in the bio-image signal mode SNR is 50dB, ENOB is 8-bit. It has been fabricated by TSMC 0.18 ?慆 CMOS 1P6M standard process.

且使用低电压源1.5V的电压供应，最后结果为在生理电讯号的模式时，SNDR为60dB，ENOB为10-bit；在生理影像讯号模式时，SNR为50dB，ENOB为8-bit。

Starting from the statistic characteristics of the signal and noise, the relationship between false-alarm probability and threshold SNR is deduced, as well as detection probability and SNR. The formula of operating range for spot target is given.

从信号和噪声的统计特性出发，文中详细推导了虚警概率与门限信噪比、探测概率与信噪比的关系，基于此推导了红外成像系统对点源目标的作用距离公式。

For example, the average number of retransmissions can be decreased 50% at 1 dB SNR in the Gaussian channel and 9 dB SNR in the Rayleigh channel.

如在高斯噪声环境下，信噪比为1dB时减少超过50%；在瑞利噪声环境下，信噪比为9dB时也减少了50%。

This method characterizes variable velocity, absorption coefficient and quality factor. It is feasible for improving SNR and resolution in seismic data.

该方法具有道间与道内地震波速度、介质吸收或品质因子可变的特点，并具有经济、快速、实用的优点，对地震剖面上信噪比与分辨能力的提高具有实际意义。

Due to the use of parallel concatenated code, pseudo-random interleaver and iterative decoding technique, Turbo Code is capable of achieving an arbitrarily small BER of 10~(-5) at the SNR of just 0.7 dB.

对于Turbo码的研究目前已经取得了大量的理论和仿真成果，但是Turbo码仍然缺乏系统严格的理论指导，实际应用中几个关键问题需要解决。

Firstly, the multi-user detector that relatively integrity in theory and proximal to optimal multi-user detector is discussed and Decor elating Detector, Minimum Mean Square Error Detector, Optimal linear Detector together with the multi-capability indexes output energy, SNR, bit error rate, asymptotic efficiency, convergence etc.

本文首先对理论上及性能上接近最佳多用户检测的次最佳多用户检测进行理论研究，计算并分析了解相关检测器、最小均方误差检测器、最佳线性检测器的性能指标(输出能量、信噪比、渐近有效性、误码率以及收敛特性等)。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。