heterodyne receiver
英 [ˈhɛtərəʊdaɪn rɪˈsiːvə(r)]
美 [ˈhɛtərəˌdaɪn rɪˈsiːvər]
外差式接受器
英英释义
noun
- a radio receiver that combines a locally generated frequency with the carrier frequency to produce a supersonic signal that is demodulated and amplified
双语例句
- Primary parameters and living examples are given to show how to determine the parameter of optical system and make diffraction spot radius match detector size in laser heterodyne detecting system with both receiver and transmitter.
着重介绍了在收发合置式激光外差探测系统中，如何确定光学系统的参数，使成像的衍射斑与探测器尺寸匹配，并符合天线定理给出的条件，满足探测器混频的要求。 - This dissertation chooses received directly system, at the same time makes the simple introduction to the heterodyne receiver, and then carries on the preliminary analysis on optical antenna.
本文选用的是直接检测接收机的实现方案，同时对外差接收机也做了简单介绍，并对光学天线的类型和各自的结构特点进行了初步的分析。 - As the key techniques in Synthetic Aperture Ladar ( SAL), balanced optical heterodyne receiver technology is studied in this paper.
本文对合成孔径激光雷达（SyntheticApertureLadar，简称SAL）中光外差平衡接收技术进行了研究。 - This paper introduces the developing trends of radio receiver, analyses the demerits of traditional heterodyne receiver and the developing prospect of new-type zero IF receiver.
介绍了无线接收机的发展，分析了传统外差式接收机的弊端和新型零中频接收机的发展前景。 - There are two kinds of detection schemes: heterodyne and homodyne detection, they provide higher receiver sensitivity than direct detection.
接收端的检测方式有外差检测和零差检测两种，都比常规直接检测有较高的接收机灵敏度。 - Lastly, the best receiving aperture of a laser heterodyne receiver is discussed briefly.
最后简单讨论了激光外差接收机的最佳接收口径。 - Atmospheric Coherence length and its effects on a laser heterodyne receiver
大气相干长度及其对激光外差接收机的影响 - Installation and Debugging for Supersonic Heterodyne Receiver
超外差式收音机安装调试指导 - To reduce noise figure and improve receiver sensitivity, the heterodyne receiver model have become more widely available in the communication system. The rejection to image frequency interference has become the last problem for a low-noise receiver.
为了降低系统噪声系数，提高系统接收灵敏度，超外差式的接收机模型在越来越多的通信系统中被广泛的使用，实现整机低噪声、抗干扰的最后难题就是对镜频干扰的抑制。 - An ECE measurement system with heterodyne receiver on the HT-6B Tokamak
HT－6B上的ECE外差接收系统