modulation frequency

简明释义

灯频率

英英释义

例句

1.The radio transmitter operates at a specific modulation frequency to ensure clear signal transmission.

无线电发射器在特定的调制频率下运行，以确保信号传输清晰。

2.In digital communication, the modulation frequency is crucial for data integrity.

在数字通信中，调制频率对数据完整性至关重要。

3.The sound engineer set the modulation frequency to enhance the audio quality of the broadcast.

音响工程师设置了调制频率以增强广播的音频质量。

4.Higher modulation frequencies allow for faster data transmission rates.

更高的调制频率允许更快的数据传输速率。

5.Adjusting the modulation frequency can help reduce interference in communication systems.

调整调制频率可以帮助减少通信系统中的干扰。

作文

In the realm of telecommunications and signal processing, the concept of modulation frequency plays a crucial role in determining how information is transmitted over various media. Modulation is the process of varying one or more properties of a periodic waveform, known as the carrier signal, with respect to a modulating signal that contains the information to be conveyed. The modulation frequency refers specifically to the frequency at which this modulation occurs, influencing both the quality and efficiency of the communication system.Understanding modulation frequency is essential for engineers and technicians involved in designing communication systems. For instance, in amplitude modulation (AM) radio broadcasting, the audio signal that carries the voice or music is used to modulate the amplitude of a higher frequency carrier wave. The modulation frequency in this context can affect how well the signal is received and how much interference it may encounter from other signals. A higher modulation frequency typically allows for better fidelity of the transmitted audio but may also require more sophisticated equipment to process the signal effectively.Similarly, in frequency modulation (FM), the modulation frequency determines how rapidly the frequency of the carrier wave changes in response to the input audio signal. FM is widely used in music broadcasting because it is less susceptible to noise and provides better sound quality compared to AM. The choice of modulation frequency is critical in ensuring that the broadcast remains clear and intelligible to listeners, especially in urban environments where multiple signals may overlap.In addition to traditional broadcasting, modulation frequency is also significant in digital communications. In technologies such as Quadrature Amplitude Modulation (QAM), both the amplitude and phase of the carrier signal are varied to transmit data. The modulation frequency here affects the data rate and bandwidth of the transmission. Higher modulation frequencies can allow for higher data rates, making them suitable for applications like high-speed internet and video streaming.Moreover, the impact of modulation frequency extends beyond just audio and video signals. In wireless communication systems, such as those used in mobile phones and Wi-Fi, understanding the appropriate modulation frequency is vital for optimizing the overall performance of the network. Engineers must carefully select the modulation frequency to balance factors such as range, power consumption, and data throughput.In conclusion, the concept of modulation frequency is fundamental to the field of communications, affecting everything from radio broadcasts to digital data transmission. By mastering the principles of modulation frequency, professionals can enhance the effectiveness and reliability of communication systems, ensuring that information is transmitted clearly and efficiently across various platforms. As technology continues to evolve, the significance of modulation frequency will only grow, highlighting the need for ongoing research and innovation in this vital area of study.

在电信和信号处理领域，调制频率的概念在确定信息如何通过各种媒介传输方面发挥着至关重要的作用。调制是一个过程，通过改变一个或多个周期波形的属性，即载波信号，相对于包含要传递的信息的调制信号。调制频率特指这种调制发生的频率，影响通信系统的质量和效率。理解调制频率对参与通信系统设计的工程师和技术人员至关重要。例如，在调幅（AM）广播中，承载声音或音乐的音频信号用于调制更高频率的载波信号。在这种情况下，调制频率会影响信号接收的质量以及它可能遭遇的其他信号干扰。较高的调制频率通常允许更好的音频传输保真度，但也可能需要更复杂的设备来有效处理信号。同样，在频率调制（FM）中，调制频率决定了载波波形的频率如何快速变化以响应输入的音频信号。FM广泛用于音乐广播，因为与AM相比，它对噪声的抵抗力更强，提供更好的音质。调制频率的选择对于确保广播在城市环境中保持清晰和可理解性至关重要，因为在这些环境中，多种信号可能会重叠。除了传统广播，调制频率在数字通信中也具有重要意义。在如正交振幅调制（QAM）等技术中，载波信号的幅度和相位都被改变以传输数据。这里的调制频率影响着传输的数据速率和带宽。较高的调制频率可以允许更高的数据速率，使其适合高速互联网和视频流等应用。此外，调制频率的影响不仅限于音频和视频信号。在无线通信系统（如用于手机和Wi-Fi的系统）中，理解适当的调制频率对于优化网络的整体性能至关重要。工程师必须仔细选择调制频率以平衡范围、功耗和数据吞吐量等因素。总之，调制频率的概念是通信领域的基础，影响从广播到数字数据传输的方方面面。通过掌握调制频率的原理，专业人士可以提高通信系统的有效性和可靠性，确保信息在各种平台上清晰高效地传输。随着技术的不断发展，调制频率的重要性只会增加，这突显了在这一重要研究领域持续进行研究和创新的必要性。