随机信号

Parameter identification Markov method for continuous stochastic linear system and bilinear system via wavelet transform The statistical properties of continuous Wiener process are studied.

基于小波变换的离散随机线性和双线性系统参数辨识Markov方法分析了由白噪声驱动的有理滤波器输出随机信号在小波变换下的滤波和去相关特性，提出一种在线估计噪声协方差矩阵及其Cholesky分解因子的方法。

A fast algorithm, which is based on polarity correlation method for the calculation of normalized cross\|correlation function, is presented. It is suitable for stationary random signals which have Gauss distribution.

针对工程测试中较常见的具有Gauss 分布的平稳随机信号，提出了一种基于极性相关方法的计算信号间标准化互相关函数的快速算法。

In Chapter 2, the basic knowledge of higher—order spectra is introduced. The relationship of higher—order cumulants and higher—order spectra between input and output of a linear—time—invariant system driven by a non—Gaussian process is analyzed.

本论文的目的在于，以高阶统计量作为信号处理的工具，研究非最小相位随机信号建模以及噪声中的谐波恢复问题。

The luminescence power of semiconductor laser diode is tested after the radiator element of laser diode is made and the drive circuit is designed. Then, chaos mathematic model is introduced to produce deterministic class stochastic signal and C langrage program, which is based on the hardware circuit design of MSP430, is designed and on-line debugged to implement the dynamic stimulation effect and avoid the body adaptability with the duty cycle of chaos sequence. The duty cycle is adjusted and controlled to accomplish the reinforcing and reducing in moxibustion. At last, Average power of laser diode is tested under the conditions of different duty cycles and the waveforms are collected by applying virtual instrument.

在半导体激光器散热装置的特别制作及工作驱动电路的设计基础上，完成半导体激光器发光功率的测试，然后引入混沌数学模型方法来产生确定性的类随机信号，在 MSP430 单片机硬件电路设计的基础上，应用单片机 C语言进行程序设计并在线调试，实现传统灸法的动态刺激效果，采用混沌序列占空比信号消除人体适应性，调整和控制输出占空比的改变以达到灸疗的补泻手法的实现，最后对不同控制占空比情况下激光器输出的平均功率进行测试，完成工作波形的采集。

ABSTRACT The purpose of this dissertation is to study the problem of modeling of non—minimum phase random signals, and the retrieval of harmonics in noise by using higher—order statistics as a signal processing tool.

本论文的目的在于，以高阶统计量作为信号处理的工具，研究非最小相位随机信号建模以及噪声中的谐波恢复问题。

The adaptive filter is an effective method to dealing with such kind of non-steady random signal of the heart rate.

自适应滤波对于心率信号这类非平稳随机信号处理是一种有效的方法。

The local wave decomposition method is extended, and a general method for analyzing variance-stationary random signal is presented.

对局域波分解方法进行推广，提出了一种处理方差平稳随机信号的通用方法——信号分解法。

Also it can minimize leakage errors involved in fast fourier transform based measurement and can be pre-emphasized by keeping low crest factor.

与伪随机信号的周期反卷积不同，扫频信号通常都是由非周期反卷积求脉冲响应，这使脉冲响应的长度可以大于信号的长度。

It consists of same three sets of acquisitive circuits,which construct O-shaped structure to sample the signals without drop .And it adopts threshold judging method to determine the valid data in the process of the acquisition,abandons vast of the redundant useless data at the same time,it only sends the useful data to the host computer by the way of DMA,so it is easy to processing the data.The design is concise and reliable.

但这本身也是一对矛盾，因为随着采集速度的提高，单位时间内采集的信号数据也就越多，而一般的采集卡在采集一定数量的数据后，总的需要一定的时间向主机内存传送数据，而在这段时间内是不能采集数据的，作为随机信号，如果在此时间内到来，则会造成信号的丢失。

By the increasingly widespread application of the pseudo-random signal technology in the fields of system testing, environmental simulaton, data transmission, and PCM, it seems extremely necessary to develop the general pseudo random information sourcc.

随着伪随机信号技术在系统测试、环境模拟、数据传输、脉码通信等领域中日益广泛的应用，研制通用伪随机信源显得十分必要。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。