modulation distortions

简明释义

调制失真

英英释义

例句

1.Digital communication systems are designed to minimize modulation distortions 调制失真 for better performance.

数字通信系统旨在最小化 modulation distortions 调制失真 以提高性能。

2.Audio engineers often analyze modulation distortions 调制失真 to improve sound clarity in recordings.

音频工程师通常分析 modulation distortions 调制失真 以提高录音中的声音清晰度。

3.When using FM radio, listeners may experience modulation distortions 调制失真 due to poor reception.

在使用调频广播时，听众可能会因为接收不良而经历 modulation distortions 调制失真 。

4.To mitigate modulation distortions 调制失真, engineers employ various signal processing techniques.

为了减轻 modulation distortions 调制失真 ，工程师采用各种信号处理技术。

5.In telecommunications, modulation distortions 调制失真 can severely affect the quality of the transmitted signal.

在电信中，modulation distortions 调制失真 会严重影响传输信号的质量。

作文

In the realm of telecommunications and signal processing, the term modulation distortions refers to the alterations that occur in a signal's modulation when it is transmitted over a medium. These distortions can significantly impact the quality and integrity of the received signal, leading to a range of issues that affect communication systems. Understanding modulation distortions is crucial for engineers and technicians who are involved in designing and maintaining effective communication networks.To begin with, it is important to recognize that modulation is the process of varying one or more properties of a carrier signal in accordance with the information signal being sent. This can include amplitude modulation (AM), frequency modulation (FM), or phase modulation (PM). Each of these methods has its own advantages and disadvantages, but they all share a common vulnerability to modulation distortions.One of the primary causes of modulation distortions is the presence of noise in the transmission medium. Noise can come from various sources, including electromagnetic interference, thermal noise, and crosstalk between channels. When noise affects a modulated signal, it can alter the intended variations in amplitude, frequency, or phase, resulting in a distorted output that may be difficult to interpret.Another contributing factor to modulation distortions is the non-linear characteristics of the components used in a communication system. For example, amplifiers that are not operating within their linear range can introduce significant distortions. This is particularly problematic in high-power applications where signal amplification is necessary. Engineers must carefully select and configure their equipment to minimize the risk of non-linear distortion, ensuring that the integrity of the modulated signal is preserved.Additionally, modulation distortions can arise from bandwidth limitations. Every communication channel has a finite bandwidth, which restricts the range of frequencies that can be transmitted effectively. If the modulated signal contains frequencies that exceed the channel’s bandwidth, those frequencies will be attenuated or lost altogether, leading to a distorted representation of the original signal. This is why understanding the bandwidth requirements of both the signal and the medium is essential for effective communication design.The implications of modulation distortions extend beyond mere signal degradation; they can also lead to miscommunication and errors in data transmission. In critical applications such as emergency services, aviation, and military communications, even minor distortions can have serious consequences. As a result, engineers must employ various techniques to mitigate these distortions. Techniques such as error correction coding, adaptive filtering, and equalization can help restore the integrity of the transmitted signal.In conclusion, modulation distortions are a significant challenge in the field of telecommunications. They arise from various factors, including noise, non-linear components, and bandwidth limitations. To ensure reliable and clear communication, it is imperative for professionals in the industry to understand these distortions and implement strategies to minimize their impact. As technology continues to advance, the importance of addressing modulation distortions will only grow, making it a key area of focus for future research and development in communication systems.

在电信和信号处理领域，术语调制失真指的是信号在通过介质传输时其调制发生的变化。这些失真会显著影响接收信号的质量和完整性，从而导致影响通信系统的一系列问题。理解调制失真对于参与设计和维护高效通信网络的工程师和技术人员至关重要。首先，重要的是认识到调制是根据所发送的信息信号改变载波信号一个或多个属性的过程。这可以包括幅度调制（AM）、频率调制（FM）或相位调制（PM）。每种方法都有其自身的优缺点，但它们都共同面临着调制失真的脆弱性。造成调制失真的主要原因之一是传输介质中噪声的存在。噪声可能来自各种来源，包括电磁干扰、热噪声和信道间的串扰。当噪声影响到调制信号时，可能会改变幅度、频率或相位的预期变化，导致输出信号失真，可能难以解释。另一个导致调制失真的因素是通信系统中使用组件的非线性特性。例如，不在其线性范围内工作的放大器可能会引入显著的失真。这在需要信号放大的高功率应用中特别成问题。工程师必须仔细选择和配置他们的设备，以最小化非线性失真的风险，确保调制信号的完整性得以保留。此外，调制失真还可能由于带宽限制而产生。每个通信信道都有有限的带宽，这限制了可以有效传输的频率范围。如果调制信号包含超出信道带宽的频率，这些频率将被衰减或完全丢失，导致原始信号的失真表示。这就是为什么理解信号和介质的带宽要求对有效通信设计至关重要。调制失真的影响不仅限于信号降级；它们还可能导致误通信和数据传输错误。在紧急服务、航空和军事通信等关键应用中，即使是微小的失真也可能产生严重后果。因此，工程师必须采用各种技术来减轻这些失真。诸如错误更正编码、自适应滤波和均衡等技术可以帮助恢复传输信号的完整性。总之，调制失真是在电信领域中的一项重大挑战。它们源于多种因素，包括噪声、非线性组件和带宽限制。为了确保可靠和清晰的通信，行业专业人士必须理解这些失真并实施策略以最小化其影响。随着技术的不断进步，解决调制失真的重要性只会增加，使其成为未来通信系统研究和发展的关键关注领域。