The influence of multi-beam interferences, and the relation between the signal to noise ratio and the random drifts of the scanning wavelength are deduced. 理论分析了法布里-珀罗腔多光束干涉所产生的干扰以及扫描过程中波长的随机漂移对输出信噪比的影响。
Particularly, when processing the low Signal to Noise Ratio ( SNR) signals, it can also achieve an expected purpose. 尤其是在处理低信噪比信号时,分类正确率仍能达到理想水平。
The validity and feasibility of the algorithm is tested through a simulation experiment and two appraisal criterions& mean square error ( MSE) and peak value signal to noise ratio ( PSNR). 通过仿真实验结果及均方误差(MSE)和峰值信噪比(PSNR)两种评价准则说明了该算法的有效性和可行性。
In this paper, a blind despreading algorithm is proposed for the synchronous multi-user long-code Direct Sequence Spread Spectrum ( DS-SS) signals in low Signal to Noise Ratio ( SNR) scenarios. 针对同步多用户长码直扩信号,该文提出了一种低信噪比条件下的盲解扩算法。
It is demonstrated that ML estimating error can converge to CRB quickly with increasing synthetic aperture length and Signal to Noise Ratio ( SNR), but a threshold effect exists. 研究表明,随着合成孔径长度和信噪比的增加,ML估计误差可以很快地收敛于CRB,但存在阈值效应。
The Research of Signal to Noise Ratio on Measurements of γ Ray Compton Backscatter Scanner γ射线康普顿背散射扫描仪测量的信噪比研究
Rotating Mean Filter and its Application to the Improvement of the Signal to Noise Ratio of Infrared Point Target Images 旋转均值滤波用于提高红外点目标图像信噪比
From the numerical analysis, we proved number of hopping, the dwell time of the follower jamming, and signal to noise ratio are important parameters of the jamming effect. 从数值分析中证明快跳频的跳频数、干扰的驻留时间与讯杂比都是影响追随干扰效果的重要参数;
Based on the channel and detector characteristics of a submarine laser communication system, the output equation for the signal to noise ratio is derived and simplified. 根据激光对潜通信系统的信道特性和探测器特性,推导并简化了输出信噪比公式。
To improve signal to noise ratio and imaging effect is the emphasis in studying objective handling of3D seismic data in Tankou area. 该区三维地震资料目标处理的研究重点在于提高信噪比和改善成像效果。
Increase the image noise, and1 to4 layers of wavelet decomposition denoising, signal to noise ratio is given chart. 对图像加噪,并进行小波1到4层分解去噪,给出信噪比走势图。
The objective digital film image quality assessment based on peak signal to noise ratio, together with structural similarity and human vision system is proposed. 提出了以峰值信噪比为基础,结合结构相似度和基于人眼视觉系统的数字电影图像质量客观评价方法。
Clearly, It excelled some similar filters in terms of image vision effects, the peak signal to noise ratio, the mean square errors after using LLMF by experiments. 从实验结果可见,使用LLMF滤波器,图像的视觉效果、峰值信噪比、均方误差均优于同类混合滤波器。
The requirements for external vibration is put forward by means of signal to noise ratio of dynamic balance measuring system. 根据动平衡测试系统信噪比对外界振动提出了要求。
The Test of Signal to Noise Ratio and the Simultaneous Test for Parameters of Normal Population 正态总体信噪比检验和参数的同时检验
The effects of the stability of dye laser on the signal to noise ratio in degenerate four-wave mixing ( DFWM) were first investigated in iodine vapor using forward geometries. 在碘蒸气中研究了染料激光稳定性对简并四波混频(DFWM)信噪比的影响。
The result verifies that the high order approximation method offers better denoising effect and higher signal to noise ratio. 结果证明,相对于其他方法,高次逼近法去噪效果良好,得到的信噪比更高。
The numerical results show that the reproductions are feasible on the conditions that the signal to noise ratio is not very low. 计算结果表明,在信噪比不是很低的情况下,反演是可行的。
This is a time-domain signal processing method which has a lower signal to noise ratio limit. Therefore, it will have very good future in applications. 此方法是目前信噪比门限较低的时域信号处理方法,因而具有广泛的应用前景。
Simulation results show that this algorithm effectively improves the PSNR ( peak signal to noise ratio) and achieves better subjective visual quality. 仿真结果表明,该方法可改善图像的峰值信噪比,获得更好的主观视觉质量。
The application effect of the hyperspectral imaging system heavily relies on the signal to noise ratio. 高光谱成像系统的应用效果非常依赖仪器获取图像的信噪比。
A time-domain average method treating the case of lower signal to noise ratio for modal parameter identification 低信噪比情况下识别模态参数的时域平均方法
Experimental results on several kinds of a stream show that the Peak Signal to Noise Ratio ( PSNR) only has change while the subjective image quality improves well. 通过用多种码流测试仿真得出的数据显示,相对于原来的滤波算法峰值信噪比(PSNR)改变较小,主观上图像的视觉效果有较好的改善。
The electronic processing has been carefully adjusted to provide more gain combined with a much improved signal to noise ratio. 我们对电子处理单元作了认真的调整,以提供更多的增益,并可大大改善信噪比。
And the signal to noise ratio ( SNR) is increased with a phase shifter introduced. 通过引入移相电路提高了系统的信噪比。
The simulation analysis shows that the new algorithm can effectively improve the peak signal to noise ratio of the image, and the denoising effect is more satisfactory than other methods. 通过仿真分析,新算法对于细节丰富的图像以及高密度噪声的图像滤波效果良好,有效地提高了图像的峰值信噪比,去噪效果相比其他方法更加优秀。
How do we maximize signal to noise ratio in general of course? 我们如何最大限度地提高信噪比一般的课程?
Combining the concentration modulation spectroscopy with velocity modulation spectroscopy, the dependence of the signal to noise ratio on the modulation depth and various other factors are obtained. 将浓度调制光谱与速度调制光谱相结合得到了速度调制光谱调制度与各因素的关系。
Detection Limit: The minimum signal to noise ratio ( SNR) required for the central pixel. 探测范围:亮度中心的信噪比。
QPSK modulation mode of Hamming encoding different signal to noise ratio in the quality of communication. 分析QPSK调制方式下Hamming编码方式在不同信噪比下的通信质量。