analysis of signal造句
例句与造句
- This chapter gives comprehensive analysis from general analytic way , fourier analysis to relevant analysis of signal and analyzing the power chart . , especially form the theory talking of the signal processing
该章节从信号的一般分析方法、信号的傅里叶分析、信号的相关分析以及信号的功率谱分析，依次进行了全面的分析，从理论的角度对信号分析所进行的处理工作作了全面的阐述。 - Since the work frequency of dsp is 200mhz and there are lots of components whose work frequencies reach more than 100mhz , the detail analysis of signal integrity ( si ) is described in this thesis , including designing , emulation and practice
由于本系统dsp工作频率为200mhz ,其中有很多器件的工作频率达到了100mhz以上,因此本文还在如何保证信号完整性方面,从设计,仿真到实际运用上提出了笔者的一些经验。 - The major work is as following : based on the analysis of signal receiving problems when navigation receiver is in high dynamic circumstance , some typical algorithms such as maximum likelihood estimator ( mle ) , extended kalman filter ( ekf ) , frequency lock loop ( fll ) , digital phase lock loop ( pll ) and frequency extended kalman filter ( fekf ) are deduced
高动态下面临着多普勒频率、多普勒频率变化率较大的问题,给载波跟踪带来了很大困难。本章分析了目前高动态接收机中普遍采用的几种载波跟踪算法,对算法的性能进行了比较。 - Topics covered include : statistical analysis of signal processing systems , including radiometers , spectrometers , interferometers , and digital correlation systems ; matched filters and ambiguity functions ; communications channel performance ; measurement of random electromagnetic fields , angular filtering properties of antennas , interferometers , and aperture synthesis systems ; and radiative transfer and parameter estimation
主题包含了信号处理系统的统计分析；辐射仪、光谱仪、干涉仪及数位关联系统；匹配滤波器、未定值函数；通信通道的效能；随机电磁场之量测；天线的角度滤波特性；干涉仪与孔径合成系统；辐射转换与参数估计。 - Based on the basic principle of wavelet analysis , multi - resolution analysis of signal in atomic clock is made . the coefficients of wavelet transform for synthesis atomic time , which are weighed and averaged at different wavelet scales , are obtained . then according to reconstruction theorem , multi - resolution synthesis time scale can be reconstructed . since the signal of atomic clock has been analysed by multi - resolution , we can use wavelet variance at different scales to weight and average the coefficients . thus either the difference in stability of different clock or the varying characteristic of the same clock at the different scale are all considered . finaly , this method is checked by the measured data from national timing serve center of shaanxi astronomy observatory . it confirmed that this technique , which is simple and practicable , is a new method of multi - resolution . from this method , the common characteristic of different clocks can be extracted . the stability of multi - resolution synthesis atomic time scale is obviously superior to that of other methods
本文根据小波分析的基本原理，对原子钟信号进行多分辨率分解，将分解后的小波变换系数进行加权平均，得到不同小波尺度综合原子时的加权平均小波变换系数，然后由小波变换的重构条件，反演综合时间尺度.由于对原子钟信号进行了小波分解，利用不同尺度的小波变换系数的小波方差进行加权平均，这样既考虑不同原子钟在稳定性方面的差异，又顾及同一台原子钟在不同小波尺度的变化特性.最后根据陕西天文台国家授时中心的实测数据对这种方法进行了检验.表明这是一种全新的多分辨率综合方法，这种方法比较简单而切实可行，它能提取各个原子钟的共同特性，多分辨率综合时间尺度的平稳性明显优于其他方法 - It's difficult to find analysis of signal in a sentence. 用analysis of signal造句挺难的
- In this paper , a new way of real - time damage detection method was proposed according to the high speed working situation of the composite flywheels for energy storage , and a suit of equipment was developed to test the composite samples with piezoelectric disc built - in , the response waves before and after the damage occurred were recorded to the computer . on the base of traditional spectrum analysis of signal recorded , the wavelet analysis was introduced and the program in matlab language was made . with the wavelet packet decomposition of the signal , the relations between the change of response signals and damage characters were gotten , a database for damage recognition was created
本文结合储能复合材料飞轮高速旋转的工作特点，提出了一种在线检测飞轮转子损伤的方法，自主设计一套实验装置对模拟各种损伤的的试样进行了测试，试样损伤前后的响应信号被采集后存入计算机中；在对采集信号进行传统的频谱分析的基础上，引入了先进的小波分析理论，利用matlab语言编写程序，对信号进行小波分解，得到了信号变化和损伤特征之间的关系，建立了一个识别飞轮损伤的数据库；小波包分解得到信号对比图和特征向量，可以有效判定材料内部有无损伤和损伤的程度，结合频谱分析等，可一定程度上判定损伤的类型，为储能飞轮的安全运转和智能化运作提供了决策依据。 - According to the steps of vibration fault diagnosis , many modules are designed in the program , which can fulfill some functions , such as the display of signal , the analysis of signal , etc . data is collected from a test on the rotor experimental platform , which is displayed and analyzed with the program mentioned in this paper
该程序按照振动故障诊断的步骤,设计了多个模块,能完成信号的显示、信号的分析等功能。在转子实验台上进行了实验,并且采集了数据,用本文中编制的程序进行了数据显示与分析。
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