随机散布 meaning in Chinese

random scatter

However , wigner - ville distribution is n ' t enough effective applied to multicomponent signals processing for existing crossed items , sometimes signal items completely ca n ' t be distinguished from distribution for serious disturbance of crossed items . in addition , we can utilize the wigner - ville distribution to reduce the random noise of signals in that wigner - ville distribution is n ' t enough sensitive to noise . in theory , radon - wigner transform of lfm signals produces a distinct maxima ( peak ) in the radon - wigner plane , so it describe effectively the feature of the lfm signals and suppress effectively the crossed items along with wigner - ville distribution . we can utilize the radon - wigner transform to reduce the random noise of lfm signals in that the noise distrbute as dot at random in the radon - wigner plane
另外，维格纳-威利分布是完全有噪的，但它对噪声是不敏感的，因此可以利用维格纳-威利分布实现对含噪信号的去噪处理。理论上线性调频信号的radon - wigner变换在radon - wigner平面上以尖峰形式表现，因此radon - wigner变换能够有效描述线性调频信号的物理特征，抑制在维格纳-威利分布中产生的交叉项。在radon - wigner平面中随机噪声是呈点状随机散布开的，因此利用radon - wigner变换还能对含噪线性调频信号进行去噪处理。