噪声场 meaning in English
noise field
noise-field
Examples
- Semiconductor discrete device . detail specification for type cs203 gaas microwave low noise field effect transistor
半导体分立器件. cs203型砷化镓微波低噪声场效应晶体管详细规范 - Usually , single vector sensor will obtain infinite gain if noise energy flow can be counteracted in whole space
在理想情况下，若噪声场为各向同性噪声场，则通过声能流长时间积分，单个矢量水听器便可获得无限大的增益。 - But actually , the vector sensor ' s detection gain will be limited by the finite noise counteract for the existence of anisotropic component in the noise field
但实际中，由于噪声场中存在各向异性成分，噪声的声能流只能被有限抵消。 - In this paper , the self - adaptive filter , the wavelet transform and the fourier transform are used to detect the stationary and the non - stationary signal of underwater sound in anisotropic noise field
本文以各向异性噪声场为例，分别对声矢量信号中的声压、振速探讨应用自适应滤波、小波变换、短时傅里叶变换检测水声平稳和非平稳信号的应用效果。 - The results show that the self - adaptive filter can be used to detect line spectrum , the wavelet transform and the fourier transform can be used to detect the ship noise in modulating the anisotropic noise field
结果表明：自适应滤波对于各向异性噪声场中的线谱检测有良好的效果；而小波变换和短时傅里叶变换对各向异性噪声场中的舰船噪声调制信号检测有良好的效果。