随机信号

词组短语

random signal · stochastic signal

与随机信号相关的网络例句 [注：此内容来源于网络，仅供参考]

Auto-adaptive wave filter theory and technology is the main content of statics and non-stable random signal processing, which has the best performance of VINA and KARMAN wave filter, and no base knowledge or initial requirement is required. It is adapting outside environment by self-studing.

自适应滤波理论和技术是统计信号处理和非平稳随机信号处理的主要内容，它具有维纳滤波和卡尔曼滤波的最佳滤波性能，但不需要先验知识的初始条件，它是通过自学习来适应外部自然随机环境的。

Auto-adaptive wave filter theory and technology is the main content of statics and non-stable radom signal processing,which has the best performance of VINA and KARMAN wave filter,and no base knoledge or initial requirement is required. It is adapting outside environment by self-studing.

自适应滤波理论和技术是统计信号处理和非平稳随机信号处理的主要内容，它具有维纳滤波和卡尔曼滤波的最佳滤波性能，但不需要先验知识的初始条件，它是通过自学习来适应外部自然随机环境的。

Especially, the presented method can be used in the processing of the nonclassical seismic signals such as continuous stochastic signals and random impulse sequences.

这种方法还可以特别针对非传统的地震信号，如连续随机信号、随机脉冲序列等进行处理。

The process of calculating power spectrum density is introduced.

随机信号的功率谱分析是一种广泛使用的信号处理方法，能够辨识随机信号能量在频率域的分布，同时也是解决多种工程随机振动问题的主要途径之一。

A new way to analysis nonstationary stochastic process is to divide it into piece-wise stationary stochastic process.

摘要将非平稳随机信号划分为分段平稳随机信号进行处理，为非平稳随机信号的研究提供的一种新的分析方法。

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的"虚拟仪器"的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的&虚拟仪器&的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

Compare the data structures of pressure fluctuation signals and AE signals both sampled in gas-solid fluidized bed, and the difference of data structures among AE signals sampled in gas-solid fluidized bed, pneumatic transport tube, slurry bubble column, liquid-solid loop reactor, and liquid-solid stirred tank. Based on the compare, the corresponding relation between signal structure and physical multi-scales was established.

通过对气固流化床的声发射信号与压力脉动信号的结构比较，以及气固流化床、气力输送、气液固淤浆鼓泡床、液固环管及液固搅拌釜中声发射信号多尺度结构差异比较，建立了多相流体系随机信号多尺度结构与物理多尺度的对应关系，认为在有固体颗粒存在的多相流体系，微尺度信号代表了颗粒相对于主体流动的运动状态；介尺度代表主体流相对于系统的运动或者不同主体流之间的相互运动；宏尺度则反映整个系统状态随时间的变化。3。

To sample high speed random signals without drop,a design of O-shaped high speed random signals acquisition card based on the CPLD and its realization are presented.

0引言随着科学技术的发展，人们对随机信号采集的要求越来越高，不仅要求对随机信号不无遗漏的采集，而且要求很高的采集速度，以求获得尽可能多的信号信息。

Abstracts: To sample high speed random signals without drop, a design of O-shaped high speed random signals acquisition card based on the CPLD and its realization are presented. 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. The sketch map of the logic circuit and the explanation of the main parts are presented. This design has been applied in the engineering project of sampling α nuclide.

为了对随机到来的信号进行不丢失的高速采集，提出了一种基于CPLD的随机信号环形高速采集卡的设计与实现；通过采用三套采集电路形成一个环形结构，可以对随机到来的信号进行不遗漏的高速采集，而且在采集过程中利用阈值的方法鉴别出有用信号，并舍弃了大量的冗余无用数据，从而只将有用数据以DMA的方式传于主机，便于进行信号的处理；电路设计简洁可靠，并给出了主要的逻辑电路示意图与主要部件说明；该系统已经应用在采集α核素的工程实践中。

与随机信号相关的网络解释 [注：此内容来源于网络，仅供参考]

discrete signal：随机信号 random signal离散信号

耐用度 durability | 随机信号 random signal离散信号 discrete signal | 超声传感器 ultrasonic sensor

pseudo random number：伪随机序列

伪随机序列:Pseudo Random Sequence | 伪随机序列:Pseudo random number | 伪随机信号:Pseudo random biuary signal

random quantity：随机值

random process 随机过程 | random quantity 随机值 | random signal 随机信号

random signal：随机信号

由以上得知超外差或频谱分析仪无法分析瞬时信号(TransientSignal)或脉冲信号(Impulse Signal)的频谱,而其主要应用则在测试周期性的信号及其它随机信号(Random Signal)的频谱.

random signal：随机信号=>不規則信号(自動制御)

random shock 随机冲量 | random signal 随机信号=>不規則信号(自動制御) | random sine wave 随机正弦波

pseudo random signal：伪随机信号

pseudo random signal generator 伪随机信号发生器 | pseudo random signal 伪随机信号 | pseudo ripple mark 假波痕

random signal processing：随机信号处理

语音信号处理:audio signal processing | 随机信号处理:random signal processing | 数字信号处理器:Digital Signal Processing

Variance-stationary random signal：方差平稳随机信号

平稳时间序列分析:stationary random series analysis | 方差平稳随机信号:Variance-stationary random signal | 平稳自回归滑动平均过程:stationary autoregressive moving average process

random signal radar：随机信号雷达

混沌雷达信号:chaos radar signal | 随机信号雷达:random signal radar | 雷达号模拟:Radar Signal Simulation

random signal description：随机信号描述

傅里叶级数 fourier series | 随机信号描述 random signal description | 正弦信号或谐波信号 sinusoidal or harmonic signals