signal-noise ratio

The experimental results show that both plasma radiation intensity and lines signal-to-background ratio increases distinctively along with rising the pressure for sample preparation; the more symmetrical and exquisite of sample surface, the more obvious of enhancement effect on the plasma radiation.

结果表明，随着制备样品所施加压强的提高，等离子体辐射强度和光谱信背比都有不同程度的提高；样品表面粒度越均匀越细腻，等离子体辐射增强效果越明显。

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The signal moise ratio was also upgraded as the resolution of seismic data was improved. Hence the ability for solving geological problems with seismic time profile was greatly enhanced.

在提高分辨率的同时，改善了资料的信噪比，从而提高了用地震时间剖面解决地质问题的能力。

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After the received signal vectors are sent into the conventional matched filter, the sample vectors that maximize signal-to-interference ratio at the output of the filter are collected, and optimally combined across both space and time.

在接收信号矢量经过传统的匹配滤波器后，按照最大信干比准则选取输出矢量样本，并进行最优化空时二维合并。

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In order to settle two problems of pseudo static correction value and invalid velocity analysis in conventional automatic static correction in processing the converted-wave data whose signal-noise ratio is low, we divide the processing sequence into two parts.

针对低信噪比转换波资料处理中常规自动静校正产生假静校正量和速度分析失效的两个难题，我们将处理流程分成两条数据流。

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In terms of given manufacture process planning, signal-noise ratio ( SNR) was employed to scale quality loss of each process.

针对加工工艺规划，提出采用信噪比衡量各道工序对产品质量损失的影响。

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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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We use Subband ADPCM ( SB ? ADPCM ) algorithm to compress the vibration signal data which achieves 6∶1 compression ratio.

对所采集到三维振动信号用多子带ADPCM算法进行压缩,数据压缩倍数达到六倍.

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The effect of Gauss beam waist and imaging lens F, signal light axis offset, length to wide ratio of rectangular detector and signal light axis tilt to heterodyne efficiency have been analyzed and discussed.

分别讨论了高斯光束束腰和成像物镜F数、信号光光轴偏移量、矩形探测器长宽比及信号光光轴倾斜角度对外差效率的影响。

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Some basic relation among system bandwidth, threshold signal interference ratio, maximum number of access users as well as the system spectral efficiency are studied for traditional CDMA and LAS-CDMA. Their comparisons are also given.

本文对传统CDMA和LAS CDMA系统中的带宽、门限信扰比、最大用户数及系统的频谱效率等基本指标进行了探讨和比较。

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It'seems, therefore , that facial ratio in men is a biologically honest signal of aggressiveness.

看起来男人的面部宽高比值从生理学上讲是其攻击性的真实信号.

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A method for model reliability analysis is proposed which estimates the model reliability by comparing the Signal-Noise Ratio of models that reflect the spatial frequency spectral signal and errors.

研究并提出了对模型进行可靠性分析的方法，通过计算模型的信噪比反映了各模型空间频谱信号和频谱误差的强度，对模型的可靠性做出分析。

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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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From simulation results, the third-order inter-modulation distortion ratio ( IMD3) can be reduced by-10 dB on average when a two-tone signal is input. Finally, the bias-controlled predistorter has been used in OFDM system.

从仿真结果可以总结出，当系统采用双音信号作为输入时，功率放大器输出的三阶互调失真可以平均减少10dB。最后，将二极管偏压控制预失真器应用于OFDM系统中。

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At the same time, the signal-noise ratio has been improved in the multiple-pulse signal acquisition.

同时也提高了 多脉冲 信号采集的信噪比.

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The influence of profile subinterval numbers and total number of observed photons on the signal-noise ratio and time resolution of profile are analysed. 4.

分析了折叠轮廓区间数及观测总光子数对折叠轮廓信噪比及时间分辨率的影响。

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This article describes a method of measuring the complex ratio of return power waves to incident power waves, and presents the interchanged "two-signal" method of measuring the scattering parameters by slotted line.

叙述了外内向功率波复数比的测量方法，给出了散射参数测量的交互换位双信号测量线方法。

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