| 1. | On frequency resolution of the windowed discrete fourier transform
加窗离散傅里叶变换测频分辨率研究 |
| 2. | Dft for discrete fourier transform
离散傅里叶变换 |
| 3. | 2 . an algorithm resistant to print / scan process is proposed , which is based on block discrete fourier transform
2 .提出一种基于分块离散傅立叶变换的抗打印-扫描图像水印算法。 |
| 4. | Discrete fourier transform is a vital means of signal analysis . it transforms the in - time signal into the in - frequency signal
离散傅立叶变换是信号分析中的一种重要手段，它将时域信号转换违频域信号。 |
| 5. | According to the theory of digital signal processing , discrete fourier transform has selectivity to frequency just as spectrum analyzer
根据数字信号处理理论，离散傅里叶变换( dft )算法对频率具有选择性，有相当于频谱仪的功能。 |
| 6. | A new data compression technique , called the threshold discrete fourier transform ( tdft ) method , is proposed to efficiently compress the scattered field data from complex targets
提出了阈值dft ( tdft )算法用于实现基于雷达目标强散射中心分布的rcs数据压缩。 |
| 7. | The discrete fourier transform algorithm can analyze time - domain ' s stationary disturbance signal effectively and confirm the signal ' s distributing in the frequency domain
而离散傅立叶变换则可有效地对稳态扰动进行分析，得出时域稳态信号在频域中的分布情况。 |
| 8. | A novel class of layered feedforward neural network models for function approximation was proposed based on the principle of multi - dimensional discrete fourier transform
摘要利用多维离散傅立叶变换原理构造新颖的神经网络模型用于函数逼近，网络结构为分层前向网络。 |
| 9. | The dft ( discrete fourier transform ) method is use to demodulate the gap length of the low finesse fabry - perot sensor . 3 . the accuracy of the results of dft algorithm is analyzed
针对实际光强信号在波长域均匀采样，而在频率域非均匀采样的特点，讨论了傅立叶变换的变形? ?离散腔长变换( dgt )算法。 |
| 10. | In chapter 3 , the paper presents the theory of wigner - ville distribution ( wvd ) , pseudo wvd , smoothed pseudo wvd , discrete fourier transform ( dft ) , fast fourier transforms ( fft ) , and also expatiates on the
第三章将对wvd 、 pwvd 、 spwvd分布、 dft和fft变换的理论进行说明,并阐述跳频解跳与数字中频接收机的解跳原理。 |
