keying waveform

简明释义

键控波形

英英释义

例句

1.A stable keying waveform is essential for reliable communication in digital systems.

稳定的调制波形对于数字系统中的可靠通信至关重要。

2.Engineers analyzed the keying waveform to troubleshoot the transmission issues.

工程师分析了调制波形以排除传输问题。

3.Modifying the keying waveform can significantly affect the performance of the system.

修改调制波形可以显著影响系统的性能。

4.The software allows users to visualize the keying waveform in real-time.

该软件允许用户实时可视化调制波形。

5.The radio operator adjusted the keying waveform to improve signal clarity.

无线电操作员调整了调制波形以改善信号清晰度。

作文

In the realm of telecommunications and signal processing, the term keying waveform refers to a specific type of waveform that is used to modulate a carrier signal. This modulation is essential for transmitting information over various communication channels. Understanding the concept of keying waveform is crucial for engineers and technicians who work with radio frequencies and digital communications.The keying waveform essentially dictates how the information is encoded onto the carrier wave. For example, in amplitude modulation (AM), the amplitude of the carrier wave is varied in accordance with the information signal. In frequency modulation (FM), it is the frequency that changes. However, the keying waveform can also refer to the more discrete forms of modulation, such as on-off keying (OOK) or phase-shift keying (PSK).On-off keying is one of the simplest forms of digital modulation where the presence or absence of a signal represents binary data. The keying waveform in this case would be a square wave, where the high state represents a '1' and the low state represents a '0'. This simplicity makes OOK widely used in applications like infrared remote controls and basic wireless communications.In contrast, phase-shift keying involves changing the phase of the carrier wave to represent different data values. The keying waveform here would be more complex, as it needs to account for multiple phases. PSK is commonly used in digital data transmission systems, including Wi-Fi and satellite communications, due to its robustness against noise and interference.The design of a keying waveform must take into consideration several factors, including bandwidth, power efficiency, and error rates. A well-designed keying waveform can significantly enhance the performance of a communication system by maximizing data throughput while minimizing errors. Engineers often use simulation tools to analyze and optimize these waveforms before implementation.Moreover, understanding the characteristics of the keying waveform is vital when it comes to decoding the received signals accurately. The receiver must be synchronized with the transmitter to correctly interpret the variations in the keying waveform. Any discrepancies can lead to data loss or corruption, which is why synchronization techniques are an integral part of modern communication systems.In summary, the concept of keying waveform plays a pivotal role in the field of telecommunications. It serves as the foundation for various modulation schemes that enable efficient and reliable data transmission. As technology continues to advance, the importance of understanding and optimizing keying waveforms will only grow, making it an essential topic for anyone involved in electronic communications. By mastering the intricacies of keying waveforms, professionals can contribute to the development of faster, more efficient communication systems that meet the demands of our increasingly connected world.

在电信和信号处理领域，术语keying waveform指的是用于调制载波信号的一种特定类型的波形。这种调制对于通过各种通信通道传输信息至关重要。理解keying waveform的概念对于从事无线频率和数字通信的工程师和技术人员来说至关重要。keying waveform本质上决定了信息如何编码到载波波上。例如，在幅度调制（AM）中，载波波的幅度根据信息信号变化。在频率调制（FM）中，变化的是频率。然而，keying waveform也可以指更离散的调制形式，如开关键控（OOK）或相位移键控（PSK）。开关键控是最简单的数字调制形式之一，其中信号的存在与否表示二进制数据。在这种情况下，keying waveform将是一个方波，高状态代表'1'，低状态代表'0'。这种简单性使得OOK广泛应用于红外遥控器和基本无线通信等应用。相反，相位移键控涉及改变载波波的相位以表示不同的数据值。在这里，keying waveform将更加复杂，因为它需要考虑多个相位。PSK因其对噪声和干扰的抗干扰能力而常用于数字数据传输系统，包括Wi-Fi和卫星通信。keying waveform的设计必须考虑多个因素，包括带宽、功率效率和错误率。设计良好的keying waveform可以显著提升通信系统的性能，通过最大化数据吞吐量并最小化错误来实现。工程师们通常使用仿真工具在实施之前分析和优化这些波形。此外，了解keying waveform的特性在准确解码接收信号时至关重要。接收器必须与发射器同步，以正确解释keying waveform的变化。任何差异都可能导致数据丢失或损坏，这就是为什么同步技术是现代通信系统的重要组成部分。总之，keying waveform的概念在电信领域发挥着关键作用。它作为各种调制方案的基础，使高效和可靠的数据传输成为可能。随着技术的不断进步，理解和优化keying waveforms的重要性只会增加，这使其成为任何参与电子通信的人必须掌握的主题。通过掌握keying waveforms的细微差别，专业人士可以为开发更快、更高效的通信系统做出贡献，以满足我们日益互联的世界的需求。