1) time-frequency distribution image
时频分布图像
1.
Study on intra-pulse modulation recognition method based on time-frequency distribution image and principal component analysis
基于时频分布图像和主分量分析的脉内调制识别算法研究
2.
The authors propose a new method with combination of time domain and frequency domain by using the time-frequency distribution image of the radar signal.
借助于雷达信号的时频分布图像,提出了一种在时频联合域上进行信号识别的新算法。
2) spectrum distribution with photo
图像频谱分布
4) Time-frequency image ridge
时频图像脊
5) time-frequency distribution
时-频分布
1.
Preliminary analysis of time-frequency distribution of transient evoked otoacoustic emission in normal hearing human subjects;
正常人耳瞬态诱发耳声发射的时-频分布初步分析
2.
Thus, the standard time-frequency distribution images of all fault conditions including the gap abrasion in-formation of the main bearing can be defined.
通过该方法,可以得到含有内燃机主轴承间隙磨损状态的时频信息,定义出各个标准故障状态的时-频分布图,建立了基于图像匹配技术的内燃机主轴承磨损故障诊断模型。
6) time frequency distribution
时频分布
1.
A signal adaptive time frequency distribution(TFD) radial Gausian kernel TFD is studied.
对一种可调核函数的时频分布——径向高斯核函数时频分布 (RGKD)进行了研究 ,并将径向高斯核函数时频分布引入机械故障诊断。
2.
The time frequency distribution (TFD) can analyze non stationary signals in both time and frequency domain.
基于时频分布能同时分析信号在时间域和频率域的特点 ,针对 CDMA Overlay通信系统中时变窄带干扰抑制问题 ,提出了一种广义的时频分布——时变换域分布 ,利用接收信号的时变换域分布获得干扰的瞬时频率 ,并据此设计相应的时变滤波器对干扰进行抑制 。
3.
According to the seismic signals produced by moving targets such as the persons and vehicles moving on the ground, this paper studies their time frequency distribution characteristics by using the typicae time frequency analyzing method STFT so that modified complex convolution time varying filter method is used to do signal detection, thus improving the ratio of signal to noise.
针对人员、车辆等地面目标运动时产生的地震动信号 ,通过典型时频分析方法STFT研究其时频分布特性 ,进而应用修改的复数卷积时变滤波方法进行信号检测 ,使信号信噪比得以提高 ,可从中提取更有效的特征向量为目标识别所
补充资料：高光谱分辨率遥感图像及图像光谱信息提取
高光谱分辨率遥感图像及图像光谱信息提取
高光谱分辨率遥感图像及图像光谱信息提取 郑兰芬供稿
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条