英语释义

1. used in or being a radio receiver in which an incoming signal is mixed with a locally generated frequency to produce an ultrasonic signal that is then rectified, amplified, and rectified again to reproduce the sound

片语

superheterodyne spectrometer超外差分光计

superheterodyne transceiver超外差收发机

superheterodyne reception超外差式接收法

superheterodyne converter超外差变频器

superheterodyne Architecture超外差结构

double superheterodyne双重超外差式

superheterodyne mixer超外差混频器

superheterodyne interference超外差干扰

superheterodyne receiver[电讯] 超外差式收音机

英汉例句

• microstrip interdigital band-pass filters are compact and easy for batch manufacturing. they are suitable for applications in tvro superheterodyne receivers as image-reject filters.

  微带交指带通滤波器具有结构紧凑、易于批量生产的特点，适用于tvro超外差接收机中作为镜像频率抑制滤波器。

• the system adopts superheterodyne architecture. it consists of intermediate frequency (if) band and radio frequency (rf) band hardware design.

  该收发信机采用超外差结构，主要包括中频部分的硬件设计以及射频部分的硬件设计。

• finally, it points out that, as far as wide open receiver is concerned, to suppress or reduce the spurious response is one of the most important tasks in designing a superheterodyne receiver.

  最后指出对于宽开接收机而言，抑制或减少虚假响应是设计超外差接收机的重要任务之一。

• it is a misconception to think many stages in the superheterodyne chain are a plus, it is not.

  这是一个误解认为在超外差式需要多次变频，其实不是。

• the high-intermediate-frequency superheterodyne structure with twice conversions is adopted in the final scheme.

  接收机采用两次变频超外差式结构设计，第一中频为高中频。

• this paper discussed the double sideband noise figures and single side band noise figures of the superheterodyne receivers in a ideal hypothesis and the practical case respectively.

  分别讨论了在理想假设和实际情况下超外差接收机的双边带噪声系数和单边带噪声系数，给出了单边带接收机的某些设计方案。

• based on the fundamental of superheterodyne spectrum analyzers, this paper comprehensively analyzes the factors, which restrict the frequency range that an analyzer can operate down to.

  本文结合超外差频谱分析仪的基本原理对制约其下限频率的因素进行了全面分析，并针对零频响应这一主要因素简要介绍了零频对消技术的原理。

• aiming at request of private mobile radio, technology requirement of base station receiver based on tetra protocol is analyzed, and two intermediate frequency superheterodyne structure is selected.

  针对专用移动移动通信对接收机的要求，分析了tetra协议中基站接收机技术指标和选择双中频超外差接收机方案。

• this paper first discusses the instinct disadvantage of a superheterodyne receiver, which is that it has more spurious response.

  本文首先指出了超外差接收机的固有缺点，即它有更多的虚假响应。

• in this paper, a superheterodyne receiver is taken as an example to illustrate the characteristic and effect of virtual experiment teaching.

  并以超外差接收机的工作原理为例，说明了虚拟实验教学的特点和作用。

• the system uses the emitter to send ultra high frequency signals after coding with signal coder and the secondary superheterodyne mixing receiver to accept the moving target signals.

  系统中发射器采用编码器编码后发送超高频信号，接收器采用二次混频型超外差式接收移动目标信号。