| 1. | Amplitude modulation and demodulation circuit
振幅复?调回路 |
| 2. | An adaptive demodulation circuit is also given to reduce the affection of the noise , the interference and the instability of the signal
目前，采用自适应检波电路的处理机己经在工业用避碰雷达中获得应用。 |
| 3. | The thesis studies the principle on the ppm modulation and demodulation , and analyses the performance of the ppm signal demodulation circuits and designs corresponding circuits
研究了ppm调制与解调原理，分析了ppm信号解调电路系统性能并进行了电路设计。 |
| 4. | It is comprised of short message processor and tfaas application . the former is concerned on software for at89c51 and other hardware which include fsk demodulation circuit soft keyboard circuit and so on
短信处理器由89c51软件和相应硬件组成，包括fsk解调电路、软键盘电路等。 89c51软件主要完成短信接收和分析并将采集数据进行发送。 |
| 5. | In the modulation / demodulation circuits , cpld is selected as platform of the digital logic part , which includes series - shunt / shunt - series transform , difference coding and sample verdict
调制/解调电路中，串并/并串变换、差分编/解码和抽样判决等数字逻辑部分是以cpld作为开发平台，论文给出了实现上述功能的vhdl程序及仿真、测试结果。 |
| 6. | The reason for the problem , which consists in some error of the old phase - demodulation circuit , is found out by computer simulation in this dissertation . then a new phase - demodulation circuit is designed and the problem settled
本文通过对机抖陀螺进行计算机仿真，查明了问题产生的根源在于原有鉴相电路设计有误，并设计了新的鉴相电路，从根本上解决了该问题。 |
| 7. | It presents the mathematical models for the ppm modulation and demodulation circuits system . author gives out the conditions of linear modulation and demodulation , and educes its connection between the modulation factor and maximal laser frequency excursion
建立了ppm调制与解调的数学模型，给出了实现线性调制与解调的条件以及调制深度与最大激光频率偏移之间的关系。 |
| 8. | The demodulation circuit interfaced with the local bus , demodulates the signals transmitted on the pstn and restores the acquired data . in order to work nomally , hardware needs cooperation with software . the driver for pci demodulator has been developed
本地总线上挂接解调电路，对传输来的信号进行解调，恢复采集的数据。硬件需有软件的配合才能正常的工作，因此为pci解调器设计了驱动程序。 |
| 9. | Finally , this paper brings forward to the betterment means for making sensor probe . the circuit of signal procession module are introduced . it expounds the important parts , for example , design of oscillatory , design of demodulation circuit , design of signal filter circuit
介绍了研制的传感器信号处理模块电路，对电路中的重要部分如：高稳振荡源的设计、检波电路设计、滤波电路设计等都有详细说明。 |
