1.
double superheterodyne receiver
双变频超外差接收机
2.
dual-conversion superheterodyne receiver
双变频超外差式接收机
3.
single conversion superheterodyne
一次变频超外差接收机
4.
triple superheterodyne
三次变频超外差接收机
5.
This paper discussed an opto-heterodyne technique for small-plane-angle measurement with a frequency-stabilized longitudinal Zeeman laser as the light source.
文本用纵向塞曼双频稳频激光器作光源,提出了一种光学超外差法小平面角的精密测量方法.
6.
The Balanced Dual-mixer Heterodyne for Measurement of Phase Difference between two Coherent Lights;
对称双混频外差法测量相干光的相位差
7.
Brillouin frenquency shift sensing system with double fibers coherent heterodyne detection
双光纤相干外差检测布里渊频移的传感系统
8.
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
9.
Experimental Investigation in Double Closed-loop Variable Frequency and Adjustable Speed System of Slip Frequency Controlled Asynchronous motor
转差频率控制的异步电动机双闭环变频调速系统的实验研究
10.
Research on Microwave Down-conversion Technology in BOTDR System Based on Heterodyne Detection
外差检测BOTDR系统中微波下变频技术研究
11.
Design of Microwave Down-conversion Scheme in BOTDR System Based on Heterodyne Detection
外差检测BOTDR系统中微波下变频器的研究与设计
12.
Design on Variable Frequency Speed Regulation System in Large Scale Bearing Internal and External Raceway Exceeds Grinding Machine
大型轴承内外滚道超精机变频调速系统设计
13.
The main machine uses frequency conversions for speed requlation, and super-taper twin-screwextruder with temperature-regulating in the screw core.
主机采用变频调速，螺杆芯部调温得超锥形双螺杆挤出机。
14.
Study of LD-Pumped 1064nm Dual-Frequency Nd: YAG Laser with Large Frequency-Difference;
LD泵浦1064nm大频差双频Nd：YAG激光技术研究
15.
The frequency effect of a low-MHz bi-beam ultrasonic irradiation;
低频双束超声辐照的频率效应(英文)
16.
In the pre-procession of front radio frequency, the super-heterodyne technology which get proper A/ D sampling rate through choosing a proper frequency and bandwidth is adopted.
射频前端预处理采用成熟的超外差技术，选择合适的中频和带宽，得到合适的A／采样速率。
17.
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。
18.
sweep frequency heterodyne-type analyzer
扫描频率外差式分析器