| 1. | If the sampling frequency is less than this, we can expect a serious distortion of output frequency which is generally referred to as aliasing . 如果取样频率小于此数,那么输出频率就要产生严重畸变,通常假频指的就是这种情况。 |
| 2. | Panel set up the output frequency , the output frequency can be 49 - 860mhz between 125khz distance 5输出频率面板设置,输出频率可在49 - 860mhz之间,步距125khz |
| 3. | 2 . the output frequency and output voltage of this device are very stable and they can be adjusted continuously 装置的输出频率、电压稳定且连续可调,适用大多数电力设备的交流耐压试验。 |
| 4. | In terms of the pic simulation , the output power of 1 . 5gw at c band and 200mw at x band in milo have been obtained 用整体上移的办法增加高次谐波,通过对输出频率的选择,在x波段获得了250mw的功率输出。 |
| 5. | To get a high precision rotate speed , the system has realized the respective control of ipm ' s input dc voltage and output voltage wave frequency 为了保证系统的转速精度,将逆变器直流侧电压和交流输出频率分开调节。 |
| 6. | Dds ( direct digital frequency synthesis ) can just solve this problem , yet the output has an upper bound and high wideband spurs Dds (直接数字频率合成)的出现恰好可以弥补这一缺陷,但是它输出频率上限太低,宽带杂散大。 |
| 7. | To highten the output frequency , a lc voltage controlled oscillator that calls crapoor circuit is adopted . its output frequency reaches about ighz 在提高输出频率方面,采用克拉泼电路形式的lc压控振荡器,输出频率达到1ghz左右。 |
| 8. | Then the pulse is modulated by pwm . after the modulated signal through a low pass filter , we can get the change of the frequency that related to the capacitor 对频率变化的脉冲进行宽度调制,通过低通滤波就可以输出频率变化量,也就可以得到相应的加速度值。 |
| 9. | This paper describes the procedure of generating the gust in the wind tunnel . the fan was controlled by pc through the serial communication between pc and transducer 风洞中阵风的发生是通过对风机的控制实现的,计算机通过串行通讯来控制变频器的输出频率。 |
| 10. | The frequency of the pulse is the same as that of the crystal oscillator . the pulses sampled the output of the vco and generate the error signal . the error signal is amplified , 误差电压经放大后送入环路滤波器进行滤波和再放大,然后去改变变容管偏置电压,控制振荡器输出频率,达到稳频的目的。 |