The design of a frontend circuit in the shortwave noise spectrum monitoring system is made by utilizing superheterodyne reception and direct digtal synthesis techniques.
利用超外差式接收和直接数字合成(DDS)技术设计了高频地波雷达频谱监测系统的前端电路。
high performance superheterodyne receiver
高性能超外差式接收机
dual-conversion superheterodyne receiver
双变频超外差式接收机
neutrosonic receiver
中和式超外差接收机
supersonic heterodyne receiver
超声波外差式接收机
single conversion superheterodyne
一次变频超外差接收机
double superheterodyne receiver
双变频超外差接收机
triple superheterodyne
三次变频超外差接收机
That's a heterodyne receiver.
那是外差式接收机。
Edwin Armstrong develops a receiving circuit - the superheterodyne.
艾德温?阿姆斯特朗开发接收机电路—超外差式收音机。
stenode circuit
高选择性超外差接收电路
Application of superheterodyne FM reception in measurement of blade tip clearance
超外差调频接收技术在叶尖间隙测量中的应用
Balanced Heterodyne Receiver and Detecting Weak Signal with Stochastic Resonance
平衡式外差接收及随机共振微弱信号检测
Virtually all receivers in use today employ Armstrong's super heterodyne concept.
实际上所有接收器在使用中今天使用阿姆斯壮的超级外差概念。
However, zero IF architecture suffers from greater RF impairment comparing with classical heterodyne architectures.
但是相对于经典的超外差结构,在零中频结构的接收机中射频损伤将更为严重。
torque synchro differential receiver
力矩式差动自同步接收机
Design of Improved UWB Differential Transmitted Reference Receiver
一种改进的超宽带差分传输参考接收机
Foreign Direct Investment, Favorable Balance of Payment, and the Pressure of Appreciation upon Reminbi;
外商直接投资、外汇收支顺差与人民币升值压力
The Empirical Study on the Impact of FDI on the Income Disparity of China;
外商直接投资对我国收入差距影响的实证分析