| 1. | Pulse step return loss from measurement in the frequency domain using the inverse discrete fourier transformation
用反离散傅里叶变换法测定频域中脉冲阶跃回程损耗 |
| 2. | Pulse step return loss from measurement in the frequency domain using the inverse discrete fourier transformation
反向不连续傅里叶传输的频率区域内脉冲分步回损测量 |
| 3. | Metallic communication cables test methods - electrical - measurement of the pulse step return loss in the frequency domain using the inverse discrete fourier transformation
金属通信电缆试验方法.电气.用离散傅里叶逆变换测量频域中的脉冲分步回程损失 |
| 4. | Metallic communication cables test methods - part 1 - 1 : electrical ; measurement of the pulse step return loss in the frequency domain using the inverse discrete fourier transformation
金属通信电缆试验方法.第1 - 1部分:电气.用离散傅里叶逆变换测量频域中的脉冲分步回程损失 |
| 5. | Metallic communication cables test methods - part 1 - 1 : electrical - measurement of the pulse step return loss in the frequency domain using the inverse discrete fourier transformation
金属通信电缆试验方法.第1 - 1部分:电气.用离散傅里叶逆变换测量频域中的脉冲分步回程损失 |
| 6. | The technique constructs bpof based watermark from the image discrete fourier transformation and embeds the watermark into the bit plane ( s ) of the corresponding magnitude spectrum
它在图像离散fourier变换域构造基于二元纯位相滤波器的水印,并嵌入到其相应的幅值位平面中。 |
| 7. | Encapsulating attributes and methods as a bitmap class facilitates digital processing of the bitmap . the crux of the program is fresnel transformation in which an inverse discrete fourier transformation is involved
程序中，对位图的属性和处理方法进行封装，以便于实现对位图类进行各种操作和处理。 |
| 8. | First the object contour is translated into a 1 - d contour curve . secondly the curve is smoothed to restrain the noise . the number of peaks of the curve is achieved as well as the areas which contained between adjacent peak - valley , then the latter is followed by discrete fourier transformation ( dft )
首先将目标轮廓转换成一维轮廓曲线,平滑去噪,然后获得曲线峰数和轮廓曲线在相邻峰谷间所含面积,并对后者进行dft变换,提取出具有平移、旋转、尺度不变性的两类特征。 |
