Noise has good range resolution and Doppler resolution performance because of thumbtack ambiguity function,and has excellent anti-reconnaissance performance because of instantaneous wide spectrum character.
噪声因模糊函数呈图钉形而有良好的距离和多普勒分辨性能,因有瞬时宽谱特征而有卓越的反侦察性能。
The technology of instantaneous spectral analysis inherited the localization and multi-resolution characters of wavelet function, decomposed the seismic signal in frequency-time do.
瞬时谱分析技术秉承小波函数时间域与频率域局部化良好的优点,在小波域内对地震信号进行时频分解,拾取瞬时振幅谱,以形成新的"频率道集",能在时间域和频率内同时展现振幅随频率的变化特征。
PIS—A Portable Mutifunctional Instantaneous Spectrometer;
PIS—A型便携式多功能瞬态光谱仪
Based on that the instantaneous power spectral density with spatial frequency is derived.
本文提出了解决车辆非平稳随机振动问题的“瞬态空间频响函数”法 ,导出了车辆非匀速行驶时的时 -空频率关系和系统的瞬态空间频响函数 ,在此基础上结合实例分析了车辆非平稳响应的瞬时功率谱 ,并与其他方法进行了比较。
The Analysis and Fitting of the Instantaneous Size Distributions of Sand Aerosol Particles;
沙尘气溶胶瞬时谱演变特征及拟合研究
Extraction and Analysis of the Instantaneous Spectrum of Echo in Medical Characteristics under Near-Field Microwave Sounding
微波近场医学特征回波中瞬时谱提取与分析
A Method of Instantaneous Frequency Domain Filtering Based on HHT
基于希尔伯特谱的瞬时频率滤波方法
Study, Improving and Application of Pseudospectral Time-domain (PSTD) Algorithm Used in Transient Electromagnetic Field;
瞬态电磁脉冲的时域伪谱方法：研究、改进及应用
Research on relation between instantaneous energy spectrum of earthquake ground motion and displacement response of structures
地震动瞬时能量谱与结构位移响应关系研究
instantaneous state of velocity
瞬时速度, 速度的瞬时状态, 速度瞬时值
Investigation of Transient Thermal-Radiation Time-resolved Spectrum Measurement and Its Temperature Measurement Method and Technology;
瞬态热辐射谱的时间分辨测量及其温度解析方法与技术研究
quick start lamp
快速[瞬时]起动灯
immediate, short-term and long-term memory
瞬时、短时、长时记忆
vacuum flash pasteurizer
真空瞬时巴氏杀菌器
electrical transient
瞬时产生的不稳定电流
temporal resolution of moving objects
运动物体的瞬时清晰度
instantaneous orbit of charged particle
带电粒子的瞬时轨道
quadrature axis transient short circuit time constant
交轴瞬态短路时间常数
ultra-short time film evaporotor
离心式瞬时薄膜浓缩器
engine cut-off velocity
发动机停车瞬时速度
the momentary present.
目前状态的瞬间时刻。
quadrature axis transient open circuit time constant
交轴瞬态开路时间常数