输出信噪比 meaning in Chinese
output signal-noise ratio
Examples
- Simulation results demonstrate that the algorithm not only has fast convergence and high accuracy , but also can improve the output snr greatly
仿真实验表明，该算法具有快速收敛性能和高精确度等优点，能够大大提高分离后的输出信噪比。 - Under the condition of " comparatively weak correlation between the two noises involved , coherence function is used as a frequency domain amplification factor for improving snr of the output signal to the filter and the speech enhancement effect . meanwhile , a real - time recursive algorithm is put forward in substitute for current algorithms based on short time fourier transform . the new algorithm will simplify computations and will be suited for real - time implementation together with the adaptive systems
接着针对上述nanc系统两路输入信号噪声相关性弱的情况，用相干函数作频域增益因子来提高输出信噪比与改善语音增强效果，同时，通过一种实时迭代算法解决了短时傅氏变换计算量大的问题，简化了计算，便于实时处理与实际应用。 - Two detection methods of chirp signals are presented in the dissertation : the cyclic autocorrelation detection method and the correlation detection method of cyclic autocorrelation function . it is shown that the two methods both have an excellent performance of blind detection . the performance analyses of the two detection methods are both carried out for additive noise or multiplicative noise , and the output signal - to - noise ratio ( snr ) expressions of the two methods are also derived
通过研究提出了两种线性调频信号的检测方法?基于循环自相关函数包络的检测方法和基于循环自相关函数的相关函数包络的检测方法，两种方法均可实现信号的盲检测，有良好的检测性能，文中还分析了加性噪声及存在乘性和加性噪声情况下两种检测方法的性能，推导出了输出信噪比公式。 - Stochastic resonance has attracted the attentions in many fields of science in recent decades , but it is a new method and theory in signal processing . in context of signal processing , for signal transmission by nonlinear systems , stochastic resonance is commonly described as an increase hi the signal - to - noise ratio ( snr ) at the output , which is obtained through an increase of noise level or tuning system parameters
从信号处理的角度来讲，随机共振是在非线性系统信号处理中，输入为强噪声背景下的微弱信号，系统输出以适宜的物理量来衡量，如信噪比，通过调节输入噪声强度或系统参数，都可使得系统输出信噪比达到一个最大值，此时，称信号、噪声和非线性系统所产生的协同现象为随机共振。 - In this paper , the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time . using aaf , the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed , such as the output signal - noise - ratio loss , the doppler resolution , the constraint on optimal accumulative time ( opt ) and their tolerable limits
论文首次提出并研究了加速度模糊函数和加速度分辨力的有关概念，并以加速度模糊函数为分析工具，详细讨论了加速度对线性相位匹配滤波器的输出信噪比的损失程度、对多卜勒频率分辨能力的影响程度、对最优相参积累时间的约束关系以及线性相位匹配滤波器输出受加速度影响的容限等问题。