中频调制 meaning in English
intermediate frequency modulation
Examples
- The whole system is divided into three parts according to the signal frequency , i . e . , rf channel , if modulation and demodulation , digital terminal
并根据信号的工作频段和各分机电路的主要功能，将整机系统分为射频信道、中频调制解调和终端处理三大部分。 - Absorbed the idea of virtual radio , the designed if digital receiver is based on pci bus , which can sample and demodulate 70mhz if modulation signal
本课题设计的中频数字接收机吸收了虚拟无线电的思想，基于pci总线结构，能实现70mhz中频调制信号的采样与解调。 - Thirdly , give the way to how to design the digital mid - frequency modulator , discuss the design process of the system , and give the block diagram of it
其次，对遥测仿真组合子系统中的数字中频调制器的设计作了分析。给出了系统设计的过程与整个遥测仿真子系统的系统框图。 - It analyze the performance index of the mid - frequency modulator firstly , abased this , analyze the design of it , which include the agc circuit 、 dds circuit 、 and so on . fourthly , discuss how to realize the digital mid - frequency modulator
在分析了中频调制器所要求的性能指标的基础上，对数字中频调制器进行了工程设计分析，包括agc电路设计、 dds方案选择等。 - At the start , introduce the ad9854 , which is a dds chirp , and then , discuss the realization process of the hardware and software of the system , such as realization of the agc circuit , dds circuit , state flow , and so on
先对dds器件ad9854进行了介绍，在此基础上，讨论数字中频调制器的硬件实现与软件实现过程，如agc电路、数字倍频电路、 dds电路等电路的实现过程和调制状态流程。