| 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. | The calibration will also include measurement of output frequency 校正工作包括量度输出电压的频率。 |
| 3. | 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 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | The phase noise of a phase - locked vco will be at least 6db worse than the phase noise of the divided reference for each octave between the comparison frequency and the vco output frequency 大部分数字相位探测器在两个输入一致的模拟输出变化不超过的小范围有死区。 |
| 7. | The thesis studies 400hz medium frequency power supply in naval vessels . it is very important that how medium frequency power supply keeps output waveform sine wave and output frequency stable 对于中频电源来说,如何保证输出电压的正弦度和频率稳定度以及良好的动态性能是至关重要的问题。 |
| 8. | This thesis presents the implementation of a high - speed frequency hopping system in dds + pll structure . a dsp is used to generate quasi - stochastic sequence and control the output frequency to construct required hopping maps 用dds pll的结构来实现频率跳变,采用dsp作为伪码发生器,控制输出频率,得到相应的跳频图案。 |
| 9. | Finally , the x - band low phase - noise single output frequency synthesizer is designed and tested , and the measured results show that , this frequency synthesizer can satisfy the requirements of the system scheme 最后,研制成功了x波段低相位噪声点频源,实测结果表明其指标满足毫米波频率源合成器的基本方案对该功能组件的要求。 |
| 10. | This paper improves the control module and drive module of the system , makes the outputing frequency of driving power match the resonance frequency of the propotype machine , which satisfies the demand of driving and control 对原电源的设计进行了改进,使驱动电源的输出频率与样机的谐振频率相匹配,满足了样机的驱动控制要求。 |