理论上详细推导了平衡式外差接收的数学模型。
In the article, the mathematical model of balanced heterodyne reception was detailed derived.
最后简单讨论了激光外差接收机的最佳接收口径。
Lastly, the best receiving aperture of a laser heterodyne receiver is discussed briefly.
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。
This paper first discusses the instinct disadvantage of a superheterodyne receiver, which is that it has more spurious response.
该菱体较好地用于CO_2激光外差接收系统中，其能量转换效率达到93%以上。
The rhomb has been used in the CO2 laser heterodyne detection system, and the transfer efficiency is more than 93 %.
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。
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.
在现代通信系统中，毫米波频段通常采用超外差接收机，混频器作为第一级就成为关键部件。
The super-heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system.
结果表明大气湍流对水平光程上的光学外差接收机的影响很大，而在斜程上湍流的影响要小得多。
The results indicate that the effects of atmospheric turbulence on the heterodyne receiver at a horizontal path are significant, but the effects at a slant path are much smaller.
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。
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.
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。
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.
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。
Virtually all receivers in use today employ Armstrong 's super heterodyne concept.
艾德温？阿姆斯特朗开发接收机电路—超外差式收音机。
Edwin armstrong develops a receiving circuit-the superheterodyne.
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。
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.
空间相干光通信中接收天线像差会使光外差效率下降。
Heterodyne efficiency is reduced by aberration of receiving antenna for space coherent optical communication.
接收电路采用了零中频方式，相对于超外差方式，明显简化了电路结构，仅由混频器、差分放大器和电压比较器组成；
Receiving Circuit adopts the zero-IF, only consists of the mixer, differential amplifiers and voltage comparator, compared to super heterodyne, obviously simplifies the structure of the circuit;
接收电路采用了零中频方式，相对于超外差方式，明显简化了电路结构，仅由混频器、差分放大器和电压比较器组成；
Receiving Circuit adopts the zero-IF, only consists of the mixer, differential amplifiers and voltage comparator, compared to super heterodyne, obviously simplifies the structure of the circuit;
应用推荐