n.外差法；外差作用；外差振荡器；外差（电子战用语）
adj.外差的；外差法的
v.成拍，致差，使…混合

The heterodyne technique is widely used in radio frequency (RF) signal processing for demodulation and modulation purposes.
异步调频技术广泛用于射频信号处理的解调和调制目的。
Heterodyne detection allows us to measure the frequency of an unknown signal by mixing it with a known reference signal.
异步检测允许我们通过将未知信号与已知参考信号混合来测量其频率。
In optical communication systems, heterodyne detection is employed to achieve high sensitivity and wide bandwidth.
在光通信系统中，使用异步检测实现高灵敏度和宽带宽。
The heterodyne effect can be observed when two sound waves of slightly different frequencies are played together, resulting in a fluctuating beat frequency.
当两个频率略有不同的声波同时播放时，可以观察到异步效应，导致波动的拍频。
The principle of heterodyning is based on the concept of superposition, where two signals are combined to produce new frequencies.
异步原理基于叠加概念，其中两个信号组合产生新频率。
In radio astronomy, heterodyne receivers are used to convert the received radio signals to lower frequencies for easier processing.
在射电天文学中，使用异步接收器将接收到的射电信号转换为较低频率，以便于处理。
The heterodyne process involves mixing two signals to produce sum and difference frequencies, which can then be filtered and analyzed.
异步过程涉及将两个信号混合以产生和差频率，然后可以进行过滤和分析。
In radar systems, heterodyne techniques are utilized to determine the range and velocity of moving objects by analyzing the reflected signals.
在雷达系统中，使用异步技术通过分析反射信号来确定移动物体的距离和速度。
The heterodyne receiver design typically includes a local oscillator and a mixer to generate the intermediate frequency (IF) signal.
异步接收器设计通常包括本地振荡器和混频器，以生成中频(IF)信号。
By utilizing the heterodyne principle, we can efficiently convert high-frequency signals to lower frequencies without losing information.
利用异步原理，我们可以有效地将高频信号转换为低频信号，而不会丢失信息。