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system frequency response
相关语句
  系统频率响应
    A New Way for Measuring System Frequency Response
    一种新的测量系统频率响应的方法
短句来源
    Method for Testing System Frequency Response Characteristic Based on Chaotic Signal
    基于混沌信号的系统频率响应特性测试方法
短句来源
    An experimental method for testing the system frequency response characteristic based on chaotic signal is introduced.
    介绍了在难以用解析法建立系统的传递函数时 ,利用混沌信号来测试系统频率响应特性的一种实验方法。
短句来源
    Furthermore, basic element determining open /close loop system frequency response by using frequency sweep technique, involved in a variety of methods, is fully verified to be correct, through both manual and automatic frequency sweep at different input position in the control loop with BW 1 variable stability aircraft. So that the various methods of measuring stability margin are ensured to be effective and feasible.
    并就各种方法的基本环节——频率扫描确定开环/闭环系统频率响应的具体方法,通过BW-1变稳机人工手动扫频和试验信号发生器不同位置扫频激励试飞进行了验证,结果是正确的,从而确保了各种测取稳定裕度方法的有效可行。
短句来源
    The system output is real time sampled by taking the exponential descent sine combined signal as the system input. Based on the known system input and output,the system frequency response is obtained through using the discrete Fourier transform and processed by the frequency domain compensation,so resolving the problem of inaccuracy of the frequency response of the system at the high frequency end and thus getting a measuring method of high applicable value for the single input and single output system frequency response.
    :以指数衰减的组合正弦信号作为系统输入信号 ,同时实时采集系统输出 ,在已知系统输入及输出的基础上 ,运用离散傅立叶变换求得系统频率响应 ,并采用频域补偿法对所求得的系统频率响应进行处理 ,解决了系统的频率响应在高频端不准确这一特殊问题 ,从而得到了一套对单输入单输出系统频率响应的测量方法 ,具有较大的实用价值
短句来源
  “system frequency response”译为未确定词的双语例句
    This paper simply describes the component of test & measurement system, introduas mainparts of which affeced system frequency response by combined with concrete examples, and so eluci-dathe attention should be paid to the frequency response of the whole system.
    本文简述了测试系统及其组成,并以实例介绍了影响系统频响的几个主要环节,进而说明了测试频响特性的重要意义。
短句来源
    In order to tests the system frequency response better,a new digital fr equency response test method is proposed. The test steps, the algorithm realizati on (including the FFT method, related operational method, least squares method), the BODE chart and the mathematical model establishment are discussed.
    为了更好地测试系统的频率响应,文中提出了一种新型的数字式频率响应测试方法,对测试的步骤、算法实现(包括FFT法,相关运算法,最小二乘法)、BODE图的绘制和数学模型的建立做了研究和总结归纳;
短句来源
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  system frequency response
This is of great advantage in modeling the system frequency response instead of the system output, commonly used in pharmacokinetics.
      
In general, the influence of the system structure on the form of the system frequency response is much more distinct than on the form of the system output.
      
Verification of adequate system frequency response, including sampling rates for digital systems.
      
The objective was to determine a system frequency response function relating a random noise speaker input and microphone outputs at various locations.
      
The airblast recording system should have a system frequency response of at least 20 KHz.
      
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This paper simply describes the component of test & measurement system, introduas mainparts of which affeced system frequency response by combined with concrete examples, and so eluci-dathe attention should be paid to the frequency response of the whole system.

本文简述了测试系统及其组成,并以实例介绍了影响系统频响的几个主要环节,进而说明了测试频响特性的重要意义。

In order to conduct the stability verification,control law updating and validation of control system and flying quality evaluation,several methods,including Fourier coefficient,power spectrum density based on fast Fourier transform or correlation function calculation,and several appropriate new designed excitation input signals are presented and applied to determine the system frequency responses.Further both the modified Rosenbrock search algorithm and the least squares Gauss Newton iterative...

In order to conduct the stability verification,control law updating and validation of control system and flying quality evaluation,several methods,including Fourier coefficient,power spectrum density based on fast Fourier transform or correlation function calculation,and several appropriate new designed excitation input signals are presented and applied to determine the system frequency responses.Further both the modified Rosenbrock search algorithm and the least squares Gauss Newton iterative procedure are used to extract parametric models by fitting frequency or time response.In addition,the effect of different methods and excitation signals are compared one other using manual and automatic sine sweep and air air tracking process data from Tu 154M in flight simulator and BW 1 variable stability aircraft flight test.Final results show that all methods are correct and the excitation signals are effective.They can be popularized in flight test of flying qualities and fly by wire flight control system.

为试飞验证飞控系统的稳定性,改进、确认控制律和评价飞机的飞行品质,提出了富氏系数法(FC)、直接快速富氏变换-功率谱密度法(FFT-PSD)和相关函数-功率谱密度法(CF-PSD),确定系统频率响应。进而采用罗森布洛克无约束极值法和最小二乘-高斯牛顿迭代法进行模型参数拟合。另外,给出了适合于上述方法的输入激励设计。通过用Tu-154M空中模拟试验机人机闭环/手动扫频试验数据和BW-1变稳机手动/自动扫频数据进行计算,对上述方法做了比较。结果表明,方法正确、有效,可解决飞控/飞行品质试飞中的识别问题

Based on the requirements for flight control system stability margin. Especially a new method, derived from the minimum singular value concepts of return difference matrix (RDM), can be applied to the flight validation of multi channel/loop complex system stability. Furthermore, basic element determining open /close loop system frequency response by using frequency sweep technique, involved in a variety of methods, is fully verified to be correct, through both manual and automatic frequency...

Based on the requirements for flight control system stability margin. Especially a new method, derived from the minimum singular value concepts of return difference matrix (RDM), can be applied to the flight validation of multi channel/loop complex system stability. Furthermore, basic element determining open /close loop system frequency response by using frequency sweep technique, involved in a variety of methods, is fully verified to be correct, through both manual and automatic frequency sweep at different input position in the control loop with BW 1 variable stability aircraft. So that the various methods of measuring stability margin are ensured to be effective and feasible.

根据飞控系统稳定裕度的要求,给出了几种求取稳定裕度的方法,尤其是提出的基于返回误差阵奇异值的稳定裕度判定方法,可解决多通道多回路复杂交联系统的稳定裕度评价问题。并就各种方法的基本环节——频率扫描确定开环/闭环系统频率响应的具体方法,通过BW-1变稳机人工手动扫频和试验信号发生器不同位置扫频激励试飞进行了验证,结果是正确的,从而确保了各种测取稳定裕度方法的有效可行。

 
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