component signal造句
例句與造句
- For those multi - component signals like speech signal , such interaction is a common situation . secondly , a new common ridge method is discussed ; a common ridge across the complex ridge image is used instead of several interacted single ridges
因此對于語音等含有多個分量的信號，頻率相鄰的分量分別形成幾個帶狀區(qū)域，每個區(qū)域內(nèi)脊互相干擾，無法分辨的情況是普遍的。 - The signals of ccir 656 are converted into the signals with the format that is suitable to the display devices . the analog - to - digital conversion is completed by ad9883a chip for the signals of hdtv from y / pr / pb interface and analog rgb component signals from vga interface
接口電路還用ad9883a芯片對高清晰度視頻信號和vga接口輸出的模擬rgb視頻信號進行模數(shù)轉(zhuǎn)換,轉(zhuǎn)換為24bitsrgb數(shù)字視頻信號,最后執(zhí)行視頻格式轉(zhuǎn)換。 - The main work and originality in this paper can be summarized as below : 1 . studies on the cross - components in the wigner - ville distribution of multi - component signals . we present adaptive gaussian kernel time - frequency distribution according to the feature of cross - components in the ambiguity domain
系統(tǒng)的研究了多分量信號wigner - ville分布中的交叉項，根據(jù)交叉項在模糊域的特點，提出了基于信號的自適應(yīng)高斯核時頻分布。 - First , this paper introduced the method to select the strain chip measurement positions and organize the bridges and proved this method can decouple the outputs of the multi - component transducer for each variable . meanwhile , this paper deduced the relation equations between multi - component signals and the wheel loads
本文首先介紹了應(yīng)變片測量點選取和組橋方案，證明了該設(shè)計可使多維力輸出信號解耦，并推導(dǎo)了傳感器信號與多維力之間的關(guān)系方程。 - Chaper six compared the emd - based time - frequency analysis method to the typical ' s : short time fourier analysis , wigner distribution and wavelet anlysis , the result showed that the emd - based ' s is better than the others . to weaken the crossing interfere in multi - components signal in wigner distribution the emd - based wigner distribution was proposed and the study result showed that the method is valid . chapter seven built a experiment system at the base of rotor test bed , discussed characteristics of several typical fault in rotating m
第六章把基于emd的時頻分析方法分別與短時傅里葉變換、 wigner分布分析、小波變換進行了比較研究，結(jié)果表明，基于emd時頻分析方法比上述方法有效；針對wigner分布分析的交叉項干擾，提出了基于emd的wigner分布分析新方法，研究結(jié)果表明新方法能有效地消除交叉項干擾。 - It's difficult to find component signal in a sentence. 用component signal造句挺難的
- Based on the method , this dissertation deals with several kinds of signals including cosine wave ( cw ) , linear frequency modulated ( lfm ) and multi - component signal , furthermore the systematic comparison of estimation effect among cwt and several other usual methods as well cramer - rao bound ( crb ) is given
基于上述方法，文中分別對單頻矩形脈沖信號、線性調(diào)頻脈沖信號以及多分量信號進行了瞬時頻率估計，并與其他幾種常用瞬時頻率估計方法的性能以及crb進行了系統(tǒng)比較。 - During the instantaneous frequency estimation of lfm , there exists some error in the edge , so in the dissertation , a fitting method is proposed to modify it . from the computer simulation , the following result is obtained : for cw , the method based on cwt is most effective , and with the snr rising , the error curve of it is more and more closer to crb . for lfm , the method based on wvd gives the best result , and the effects of cwt and stft are similar for multi - component signal , compared to stft and wvd , cwt is a better choice
通過仿真發(fā)現(xiàn)，在單頻回波的瞬時頻率估計中，基于cwt的方法最為有效，隨著信噪比的提高，其均方誤差曲線越來越接近克拉美?羅界；在線性調(diào)頻回波的瞬時頻率估計中， wvd法得到的效果最好，而cwt與stft法的估計效果比較接近；在多分量信號的瞬時頻率估計中，相對于stft和wvd法， cwt法是一個更好的選擇。 - A numerical simulation of simply dynamic system with and without damage under random forces is conducted to obtain acceleration data , and feature extraction based on wavelet packet and damage pattern classification based on bp neural network are finished . comparing node energy feature of wavelet packet coefficient with node energy feature of wavelet packet component signal , node energy of wavelet packet coefficient provides more feature information and causes shorter computation time
通過一個在隨機荷載激勵下的簡單動力系統(tǒng)的數(shù)值模擬，對加速度時程信號提取了小波包系數(shù)和信號成份兩種節(jié)點能量特征，對比了兩者的差異，認為小波包系數(shù)節(jié)點能量的特征性更強，且計算效率更高。 - The paper discusses mainly the essential theory of time - frequency analysis method and two important tools : wigner - ville distribution , radon - wigner transform that applies to the time - frequency analysis method . and it validates that they can applies to the semic signals processing . the processing result indicates that wigner - ville distribution has well time - frequency collective feature for single component signal , it applies to single component signal processing
處理結(jié)果表明，對于單分量信號維格納-威利分布具有良好的時-頻聚集性，因此它對于單分量信號的處理具有很好的效果；而對于多分量信號由于交叉項的存在使得維格納-威利分布不再很有效，有時甚至?xí)捎诮徊骓椀膰乐馗蓴_使得信號項變得完全無法分辨。