inverse discrete Fourier transform
英
美 [ˌɪnˈvɜːrs dɪˈskriːt ˈfʊrieɪ trænsˈfɔːrm]
网络 离散傅里叶逆变换; 离散傅里叶反转换; 离散傅立叶反转换; 离散傅里叶反变换; 逆离散傅里叶变换
双语例句
- Imaging in inverse synthetic aperture radar ( isar) based on discrete matching Fourier transform
基于离散匹配傅里叶变换的逆合成孔径雷达成像算法 - Based on a simplified engine dynamic model, the cylinder pressure torque waveform can be achieved through Discrete Fourier Transform and Inverse Discrete Fourier Transform.
在发动机模型基础上，通过在时间域和频率域对曲轴扭转振动分析，经过傅立叶变换和逆变换，得到各缸的气压扭矩变化波形。 - This paper describes a new method which uses IDFT ( Inverse Discrete Fourier Transform) technique to do time domain near field measurement for antenna.
本文提出了一种利用离散付立叶反变换（IDFT）技术完成天线的时域近场测量的方法。 - A new algorithm for array synthesis based on inverse Discrete Fourier Transform ( IDFT) is proposed in the paper.
基于逆离散傅立叶变换（IDFT）算法，提出了一种新的阵列综合算法。 - In this paper, the one-dimensional range resolution and step frequency signal are introduced. The principles of high resolution range profiles of step frequency radar are analyzed which adopts the method of Inverse Discrete Fourier Transform ( IDFT) signal process to get high range resolution.
首先简单介绍了一维距离像和步进频率信号，分析了步进频率雷达系统中成一维高分辨力距离像的成像原理，即采用离散傅里叶逆变换（ID-FT）信号处理方法实现距离高分辨。 - The first kind of multiplexer utilizes SiO2 PLC-based directional couplers, optical delay lines and thermo-optical phase shifters to implement time delay and phase shifting respectively, so as to implement optical inverse discrete Fourier transform.
第一种复用器利用平面光波导耦合器、热光移相器及波导延时线来分别实现移相和延时，从而实现全光离散傅立叶反变换。 - A signal processing method of high range resolution based on Inverse Discrete Fourier Transform is analyzed and the effect on the high resolution range profile caused by the radial motion between the target and the radar is discussed.
同时，文中研究了频率步进雷达信号逆傅立叶变换处理方法实现高距离分辨率的原理，以及当目标与雷达间存在相对径向运动时，目标的高分辨距离像产生的变化。