| 1. | Development of portable instrument for amplitude - frequency characteristic
便携式低频幅频特性测试仪的研制 |
| 2. | Amplitude - frequency response characteristic
幅频特性 |
| 3. | Malfunction of amplitude - frequency characteristic of ecg and its solution
心电图机幅频特性不合格原因及处理办法 |
| 4. | Amplitude - frequency response
幅频响应 |
| 5. | In the end , we discuss the relationship between the parameters in the cure of amplitude - frequency and the physical parameters of the system , and optimize the parameters
最后详细研究了系统的幅频响应曲线中的各参数与系统物理参数之间的关系,并进行了参数选择。 |
| 6. | The amplitude - frequency response equations and the local bifurcations are respectively analyzed in the two resonant cases . the numerical simulations are given to obtain the amplitude - frequency response curve
利用数值模拟方法得出了1 3亚谐共振和1 2亚谐共振情况下的局部分叉和振幅-频率响应曲线。 |
| 7. | It can be used to measure the amplitude - frequency characteristic and phase - frequency characteristic of the unknown network , and give the real - time the transmission - characteristic measurement of the unknown network
运用扫频技术的频率特性测试仪可以对被测网络进行快速的动态测量,得出被测网络传输特性的实时测量结果。 |
| 8. | The amplitude - frequency response equations and the local bifurcations are respectively analyzed in the two resonant cases . the numerical simulations are given to obtain the amplitude - frequency response curve
最后应用matlab仿真软件对频率响应方程进行数值模拟，得出了系统在内共振和1 / 3亚谐共振情况下的分叉和频率响应曲线。 |
| 9. | The auto - spectrum is attached to linear phase , the amplitude - frequency drawing is got according to the arithmetic of bi - spectrum , then the equivalent is educed , the conversion relation is attained
该方法通过对自谱添加线性相位，根据双谱的数值估计算法计算获得双谱在三维空间的幅频图，通过推导双谱与自谱估计算法之间的等价关系以及所得的幅频图来实现两者之间的相互转换。 |
| 10. | When we use fft to analyze harmonics and interharmonics , the interharmonics component will result in a phenomenon of frequency spectrum leakage and make the amplitude - frequency image distorted , so we must judge the component of harmonics and interharmonics
在运用fft分析谐波和间谐波时，间谐波的存在会造成“频谱泄漏”的现象，使得幅频特性图像失真，需要对其中谐波和间谐波的含量做出判断。 |
