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   周期平稳性 的翻译结果: 查询用时:0.152秒
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周期平稳性
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  cycle placidity
     This paper mainly studies the cycle placidity and cycllic spectrum density function of DS signal:On the base of cyclic spectrum density function of BPSK DS signal,,the writer puts forword a theory that makes use of the cyclic spectrum to detect DS signal,with the simulation ways of MATLAB to validate it.
     研究了扩频信号的周期平稳性及其循环谱密度函数; 在推导出BPSK扩频信号的循环谱密度函数的基础上,提出利用循环谱理论对BPSK直扩信号进行检测,并用MATLAB进行仿真验证。
短句来源
  “周期平稳性”译为未确定词的双语例句
     Cyclostationarity of vibration signal of rotating machine with random fluctuation of angularspeed
     转速随机波动旋转机械振动信号的周期平稳性
短句来源
     2. Based on the Maximum Likelihood, a new channel blind estimation algorithm is given, which uses the auto correlation matrix of the vector of received signal in the OFDM systems.
     2、基于最大似然估计原理,提出了一种改进的盲信道估计算法,它利用了以前人们弃之不用的循环前缀,并根据循环前缀的周期平稳性来进行信道盲估计。
短句来源
     The Application of the 2-Order Cyclostationarity of Signals in Wireless Mobile Communication
     信号的二阶周期平稳性在无线移动通信中的应用
短句来源
     In this simplified model, the cyclostationarity of received signal can be proved.
     在这种模型下,证明了接收信号的周期平稳性,并推导了周期统计量的估计方法。
短句来源
     Aiming at the cyclcostationary property of fault signal of rotating machinery, the analysis and feature extraction methods for the cyclcostationary fault signal are researched in this dissertation.
     首先,对旋转机械故障信号的周期平稳性进行了深入地分析研究,澄清了周期平稳阶数与最低周期平稳阶数的区别与联系。
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  相似匹配句对
     Upsampling and shaping filtering introduce the cyclostationarity of transmit signals.
     过采样和成型滤波引入了信号的周期平稳性
短句来源
     A BRIEF DISCUSSION OF CYCLE
     周期浅析
短句来源
     Then b is called the base of A. and p the period of A.
     p为A的周期.
短句来源
     Cyclostationarity of vibration signal of rotating machine with random fluctuation of angularspeed
     转速随机波动旋转机械振动信号的周期平稳性
短句来源
     Testing Stationary of Stochastic Series
     随机序列平稳性的检验
短句来源
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Many modulated communication signals exhibit a cyclo-stationary (or periodic correlation) property. In the time domain, its autocorrelation function exhibits periodicity with some period, in the frequency domain, the cycle frequency exhibits its spectral correlation property . By means of this spectral correlation property .many signal processing techniques may be made to gain a lot of useful characteristics. In this paper, two new algorithms are introduced by using the spectral correlation theory. The new algorithms...

Many modulated communication signals exhibit a cyclo-stationary (or periodic correlation) property. In the time domain, its autocorrelation function exhibits periodicity with some period, in the frequency domain, the cycle frequency exhibits its spectral correlation property . By means of this spectral correlation property .many signal processing techniques may be made to gain a lot of useful characteristics. In this paper, two new algorithms are introduced by using the spectral correlation theory. The new algorithms have obtained the signal selectivity and overcome the limitations of existing methods using spatial spectrum estimation. Exploiting the known spectral correlation properties of desired signals, the new algorithms can estimate the directions of arrival of desired signals in the presence of multipath and arbitrary numbers of closely spaced interfering signals. This fine performance is demonstrated with the computer simulation, and these new algorithms have been implemented in real-time on TMS320C25 system.

许多已调通信信号具有周期平稳性,在时域其自相关函数具有周期性,在频域同期频率具有谱相关特性。利用这种谱相关特性使许多信号处理技术具有了很多有用的新特点。本文介绍了两种测向新算法,它们通过谱相关理论的应用,使新算法具有信号选择性,克服了当今流行的空间谱估计测向算法存在的不足。新算法开发了期望信号已知的谱相关特性,在多径和任意数目、任意接近于期望信号的干扰存在情况下,都能估计出期望信号的到达方向。计算机模拟证实了这一良好性能,并且在TMS320C25系统上实时实现了这种新算法。

Cyclostationary signal is an important class of non-statinary signal. Many signals and/or inteferences show certain degree of cyclostatioinarity. Therefore, signal processors considering this property of the signal can obtain many performance advantages over conventional signal processors. This paper first reviews some fundamental conceptions and methods of cyclostation-ary signal processing theory, followed by a comparatively thorough summary of its applications. Finally, directions of future development and...

Cyclostationary signal is an important class of non-statinary signal. Many signals and/or inteferences show certain degree of cyclostatioinarity. Therefore, signal processors considering this property of the signal can obtain many performance advantages over conventional signal processors. This paper first reviews some fundamental conceptions and methods of cyclostation-ary signal processing theory, followed by a comparatively thorough summary of its applications. Finally, directions of future development and application are dicussed.

周期平稳信号是一类非常重要的非平稳信号,许多信号、干扰都表现出一定的周期平稳性,将信号的这种特性考虑在内的信号处理器,较之传统的信号处理器,可以得到性能上的提高。本文对周期平稳信号处理的基本理论和方法,以及它在各领域中的应用作一概要总结,并在此基础上,对周期平稳信号处理新的发展和应用方向予以展望。

Functional state of Multi channel electrocardiogram supervision and processing is analyzed. ECG lead mode selecting, multi channel A/D, and analogcardiac electric signal processing are implemented. Run length DSGM detection ispresented. Feature detection and diagnosis are achieved with ECG steady periodicstructure feature. Efficiency synchronous spectrum compression is studied. Higher compression ratio is acquired with high fidelity. Multi channel ECG supervision, control, and processing PC system is constituted...

Functional state of Multi channel electrocardiogram supervision and processing is analyzed. ECG lead mode selecting, multi channel A/D, and analogcardiac electric signal processing are implemented. Run length DSGM detection ispresented. Feature detection and diagnosis are achieved with ECG steady periodicstructure feature. Efficiency synchronous spectrum compression is studied. Higher compression ratio is acquired with high fidelity. Multi channel ECG supervision, control, and processing PC system is constituted with PC and sampling and processing units. The system have perfect functions, such as multi channel real time supervising, fast detection and diagnosing, effective compressing with highfidelity, and expansible tele recalling and tele diagnosing.

本文分析了多通道心电图监控处理系统的功能状态特性 ,研究并实现了导联方式选择 ,心电信号模拟处理与多通道心电数据采集。提出了结合心电图结构周期平稳性的游程差分样条梯度平均检测方法 ,实现快速有效的特征检测和诊断。研究了心电图同步高效带宽压缩技术 ,获得高保真度下的高压缩率。利用PC和采集处理技术 ,组建了多通道心电图监控处理微计算机系统 ,系统具有多路心电实时监测 ,快速检测诊断 ,高保真度下的高效数据压缩 ,并具有远程医疗诊断 ,多媒体数据检索等扩展功能。

 
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