English translation for "离散频谱"
|
- discrete frequency spectrum
discrete spectrum
Related Translations:
离散问题: discrete problemdiscrete variable problem 离散脉冲: discrete impulsediscrete pulse 离散趋势: tendencyofdispersionon 离散模拟: discrete analogdiscrete simulationevent-oriented simulation 离散逼近: discrete approximation
- Example Sentences:
| 1. | Adopting the latest research result on dynamic signal discrete spectrum analysis and the idea of virtual instrument , a dynamic signal analysis virtual instrument software system is developed , which is based on windows and has good performance
并采用动态信号离散频谱分析领域最新研究成果，基于虚拟仪器设计思想，研制一套方法新、功能全、实时性好、精度高的基于windows的通用动态信号分析虚拟仪器软件系统。 | | 2. | The method of compressing bandwidth of fringe function is proposed that basis fringe contains discrete spectrum which is based on human vision for real - time display , we also introduce discusses the spatial light modulators ( slms ) based on display system of digital holography and theory of numerical reconstruction of digital holography
为了达到实时性要求，在满足人眼视觉的光信息量基础上，对带宽压缩的理论问题进行了研究，提出了基于离散频谱的带宽压缩算法，并给出了结果。 | | 3. | Due to existing signal processing technology ’ s shortage such aslow measurement , narrow measurement range precision and other poor performance , we introduced a high - precise signal processing technology : firstly , to get power spectrum with hanning windowed welch modified periodogram , search its peak value frequency ; secondly , to apply zooming analysis via goertzel algorithm ; at last , to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology , we designed a signal processing scheme , and developed a signal processing system . the running result showed high performance , verified the feasibility and reliability of the highly precise signal processing technology introduced . in a word , the technology improved ldv ’ s performance such as measurement precision , measurement range , dynamic response time 。 and it will have a wide application foreground
针对存在的缺点,本文提出了一种应用于激光多普勒测速的高精度信号处理技术,即首先利用加hanning窗的welch修正周期图算法得到信号功率谱,搜索其谱峰值频率,接着利用goertzel频谱细化算法对搜索的谱峰进行细化分析,再引入能量重心频谱校正算法对细化后的谱峰进行校正分析,从而将离散频谱分析算法、频谱细化算法和频谱校正算法三者有机结合起来,充分发挥各自的优点:通过加hanning窗的welch修正周期图算法快速得到功率谱及峰值频率,通过goertzel算法获得分析频带的高分辨率频谱,然后通过能量重心校正算法对细化后的频谱进行高精度校正,这样不仅保证了算法的高效性,而且大大提高了分析的精度。 | | 4. | Consequently , a synthesized method is presented in this thesis , which includes time - domain shifting , window - length changing and window - type changing ( the second time - domain sequence lags behind the first one with l points , performing n - point fft analysis on the first sequence and m - point fft analysis on the second one with different windows , and finally correcting peak lines )
利用这一原理提出通用的离散频谱相位差校正方法：时域平移+改变窗长+改变窗函数，即第二段时域序列比第一段滞后l点，采用不同窗函数对这两段时域分别作n点和m点的fft分析。 | | 5. | After analysising three existed methods for phase difference correction on discrete spectrum , it is recommended to correct the spectrum containing small noise in engineer practice by the first phase difference correcting method ( performing fft analysis on two continuous original sequence ) with harming window
综合分析现有三种离散频谱相位差校正方法，推荐在小噪声工程实际中加hanning窗的第一种相位差法(采连续两段信号作相同点数fft的相位差校正法)进行校正。 | | 6. | Study shows that the basic principles of three existed methods for phase difference correction on discrete spectrum are identical , by which the twice fft analysis through time - domain shifting time series or changing window ' s length is performed , and the spectrum by making use of the phase difference of two corresponding peak lines are finally corrected
在研究时域平移的离散频谱相位差校正方法和改变窗长离散频谱相位差校正方法的基础上，发现这几种离散频谱相位差校正法的基本原理是一致的，就是通过时移和加不同的对称窗进行两次fft分析，并利用离散频谱对应峰值谱线的相位差以求得频率和相位校正量。 |
- Similar Words：
- "离散判定过程" English translation, "离散频率" English translation, "离散频率调制" English translation, "离散频率发生器" English translation, "离散频率噪声" English translation, "离散频谱分量" English translation, "离散平方根筛选" English translation, "离散谱" English translation, "离散谱线发射" English translation, "离散气流" English translation
|
|
|
