heterodyne frequency

简明释义

外差频率

英英释义

例句

1.The use of heterodyne frequency 外差频率 allows for better noise reduction in communication systems.

使用heterodyne frequency 外差频率可以在通信系统中实现更好的噪声减少。

2.In optical communication, the heterodyne frequency 外差频率 can improve the sensitivity of the detection system.

在光通信中，heterodyne frequency 外差频率可以提高检测系统的灵敏度。

3.The radio receiver uses a technique to convert the incoming signal to a lower heterodyne frequency 外差频率 for easier processing.

该无线电接收器使用一种技术将传入信号转换为较低的heterodyne frequency 外差频率，以便于处理。

4.By adjusting the local oscillator, we can change the heterodyne frequency 外差频率 to optimize signal reception.

通过调整本振，我们可以改变heterodyne frequency 外差频率以优化信号接收。

5.The heterodyne frequency 外差频率 is critical in determining the accuracy of frequency measurements in radar systems.

在雷达系统中，heterodyne frequency 外差频率对于确定频率测量的准确性至关重要。

作文

The concept of heterodyne frequency is fundamental in the field of telecommunications and signal processing. Essentially, it involves mixing two different frequencies to produce new frequencies that can be processed more easily. This technique is widely used in radio communications, where it allows for the reception of signals from distant sources by converting them into a more manageable frequency range. The term heterodyne frequency refers to the frequency that results from this mixing process. By adding or subtracting the original frequencies, engineers can create a beat frequency that falls within the audible range, making it easier to amplify and demodulate the signal.To better understand heterodyne frequency, let’s consider a practical example. Imagine a radio receiver tuned to a particular station broadcasting at a frequency of 100 MHz. The receiver also generates a local oscillator frequency of 95 MHz. When these two frequencies are mixed, the result is a new frequency of 5 MHz, which is much easier to work with. This lower frequency can then be amplified and processed without the interference that might occur at higher frequencies. This method not only improves signal clarity but also enhances the overall efficiency of the communication system.The significance of heterodyne frequency extends beyond radio broadcasts. In optical communications, similar principles apply, where light waves of different frequencies are mixed to generate new frequencies, allowing for the transmission of data over long distances with minimal loss. The ability to manipulate frequencies through heterodyning opens up a myriad of possibilities in modern technology, including radar systems, medical imaging, and even in the development of various electronic devices.Moreover, the use of heterodyne frequency techniques is crucial in the field of spectroscopy, where scientists analyze the interaction between matter and electromagnetic radiation. By employing heterodyne methods, researchers can achieve higher sensitivity and resolution in their measurements, leading to more accurate results in experiments. This application highlights the versatility of the concept and its importance across different scientific disciplines.In conclusion, the term heterodyne frequency encapsulates a vital technique in signal processing that has revolutionized how we communicate and analyze data. Its ability to convert high-frequency signals into lower, more manageable frequencies has made it an indispensable tool in telecommunications, optical communications, and scientific research. As technology continues to advance, the principles behind heterodyne frequency will undoubtedly play a pivotal role in shaping the future of communication systems and beyond.

“异频率”这一概念在电信和信号处理领域中是基础性的。它本质上涉及将两种不同的频率混合，以产生可以更容易处理的新频率。这种技术在无线电通信中被广泛使用，它允许从远处接收信号，通过将其转换为更易管理的频率范围来实现。术语异频率指的是这一混合过程所产生的频率。通过对原始频率进行加法或减法，工程师们可以创建一个落在可听范围内的拍频，这使得信号的放大和解调变得更容易。为了更好地理解异频率，让我们考虑一个实际的例子。想象一个调谐到某个广播电台的无线电接收器，其广播频率为100 MHz。接收器还生成一个本振频率为95 MHz。当这两个频率混合时，结果是一个新的频率为5 MHz，这样的频率更易于处理。这个较低的频率可以被放大和处理，而不会受到高频可能引起的干扰。这种方法不仅提高了信号的清晰度，还增强了通信系统的整体效率。异频率的重要性超越了无线电广播。在光通信中，类似的原理适用，其中不同频率的光波被混合以产生新频率，使得数据能够以最小损失的方式在长距离上传输。通过异频处理的能力打开了现代技术的无数可能性，包括雷达系统、医学成像，甚至各种电子设备的发展。此外，在光谱学领域，使用异频率技术至关重要，科学家分析物质与电磁辐射之间的相互作用。通过采用异频方法，研究人员能够在测量中实现更高的灵敏度和分辨率，从而在实验中获得更准确的结果。这一应用突显了这一概念的多功能性及其在不同科学学科中的重要性。总之，术语异频率概括了一种在信号处理中至关重要的技术，它彻底改变了我们沟通和分析数据的方式。其将高频信号转换为较低、更易管理的频率的能力，使其成为电信、光通信和科学研究中不可或缺的工具。随着技术的不断进步，异频率背后的原理无疑将在塑造未来的通信系统及其他领域中发挥关键作用。