1) frequency extrapolating
频率外推
2) Nonlinear extrapolating in frequency space
频率非线性外推
3) spectral extrapolation
频谱外推
1.
Then,spectral extrapolation is implemented using ISRA algorithm.
使用Wiener滤波复原算法恢复图像通带内的频谱分量,运用IS-RA算法实现频谱外推,通过一种频域校正算法,用Wiener滤波器恢复的频谱代替通带内的频谱,保证图像的低频分量不被破坏。
2.
Experiment results indicate that the algorithm is able to complete spectral extrapolation,and enhance super-resolution performance and spatial resolution.
为了解决毫米波被动成像中由于天线孔径尺寸和衍射受限所带来的固有空间分辨率低的问题,采用了一种改进的最大似然超分辨算法进行频谱外推。
3.
First,we employ Wiener filter to restore passband spectrum,then we implement Richardson-Lucy algorithm to complete spectral extrapolation, lastly we implement a spatial spectrum correction algorithm in which the calculated spectrum within the passband is replaced by the low frequency component restored by Wiener filter.
该算法首先使用Wiener滤波复原算法恢复图像通带内的频谱分量,然后运用Richardson-Lucy算法实现频谱外推,最后通过一种频域校正算法,用Wiener滤波器恢复的频谱代替通带内的频谱,保证图像的低频分量不被破坏。
4) extrapolation in Time Frequency Domain
时频外推
5) cranking frequency
推转频率
6) Rate derivation
频率推导
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
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