keying signal

简明释义

启闭信号

英英释义

例句

1.The radio transmitter requires a strong keying signal to operate effectively.

无线电发射器需要强的键控信号才能有效工作。

2.A weak keying signal can result in poor communication quality.

弱的键控信号可能导致通信质量差。

3.When the operator presses the button, it sends a keying signal to start the transmission.

当操作员按下按钮时，它会发送一个键控信号以开始传输。

4.The technician adjusted the settings to improve the keying signal strength.

技术员调整设置以提高键控信号的强度。

5.In digital communications, the keying signal modulates the data being sent.

在数字通信中，键控信号调制所发送的数据。

作文

In the world of telecommunications, signals play a crucial role in the transmission of information. One important concept that often comes up is the keying signal, which refers to the electrical signal used to control the operation of a transmitter or receiver. Understanding this term is essential for anyone interested in radio communication, data transmission, or even modern networking. In essence, a keying signal acts as a trigger, indicating when a device should send or receive data. This can be particularly important in scenarios where timing is critical, such as in digital communications where data packets are sent in rapid succession.The role of a keying signal can be observed in various forms of communication systems. For instance, in Morse code transmission, the operator sends a series of on-off signals that represent letters and numbers. Here, the on and off states are determined by the keying signal, which dictates when the transmitter is active and when it is silent. This simple yet effective method of communication highlights the importance of the keying signal in ensuring that messages are conveyed accurately and efficiently.Moreover, in modern digital communication systems, the concept of a keying signal has evolved with technology. Today, it encompasses a range of techniques including Frequency Shift Keying (FSK), Phase Shift Keying (PSK), and Amplitude Shift Keying (ASK). Each of these methods relies on a specific type of keying signal to modulate the carrier wave, thus encoding the information being transmitted. This modulation process is vital for maintaining the integrity of the signal over long distances, especially in environments where interference may occur.Understanding the intricacies of a keying signal also opens up discussions about signal processing and error correction. In any communication system, errors can arise due to various factors such as noise, distortion, or interference. Therefore, implementing robust error detection and correction algorithms becomes necessary to ensure that the keying signal is interpreted correctly at the receiving end. This is particularly relevant in high-speed data networks where large volumes of information are exchanged, and the margin for error is minimal.In conclusion, the keying signal is a fundamental component of communication systems that cannot be overlooked. Whether it is in traditional Morse code or cutting-edge digital networks, the ability to control when data is transmitted or received is essential for effective communication. As technology continues to advance, the principles behind the keying signal will remain relevant, serving as a foundation for future innovations in the field of telecommunications. By grasping the significance of the keying signal, we gain a deeper appreciation for the complexities involved in the seamless exchange of information in our increasingly connected world.

在电信的世界中，信号在信息传输中发挥着至关重要的作用。一个经常出现的重要概念是keying signal，它指的是用于控制发射机或接收机操作的电信号。理解这个术语对于任何对无线通信、数据传输甚至现代网络感兴趣的人来说都是必不可少的。从本质上讲，keying signal充当触发器，指示设备何时应发送或接收数据。这在时间至关重要的场景中尤其重要，例如在数字通信中，数据包以快速的速度发送。keying signal的作用可以在各种通信系统中观察到。例如，在摩尔斯电码传输中，操作员发送一系列开关信号，表示字母和数字。在这里，开和关的状态由keying signal决定，它指示发射机何时处于活动状态以及何时保持静默。这种简单而有效的通信方式突显了keying signal在确保信息准确和高效传递中的重要性。此外，在现代数字通信系统中，keying signal的概念随着技术的发展而演变。今天，它涵盖了一系列技术，包括频率偏移键控（FSK）、相位偏移键控（PSK）和幅度偏移键控（ASK）。每种方法都依赖于特定类型的keying signal来调制载波波形，从而编码所传输的信息。这个调制过程对于在长距离内保持信号的完整性至关重要，尤其是在可能发生干扰的环境中。理解keying signal的复杂性也引发了关于信号处理和错误更正的讨论。在任何通信系统中，由于噪声、失真或干扰等各种因素，错误都可能发生。因此，实施强大的错误检测和更正算法变得必要，以确保keying signal在接收端被正确解释。这在高速数据网络中尤其相关，因为大量信息被交换，容错空间非常小。总之，keying signal是通信系统的基本组成部分，不容忽视。无论是在传统的摩尔斯电码中还是在尖端数字网络中，控制何时传输或接收数据的能力对于有效通信至关重要。随着技术的不断进步，keying signal背后的原理将继续保持相关性，为电信领域未来的创新奠定基础。通过掌握keying signal的重要性，我们对在日益互联的世界中无缝交换信息所涉及的复杂性有了更深的理解。