frequency shift keyed

简明释义

频移键控的

英英释义

例句

1.The radio communication system utilizes frequency shift keyed 频率移位键控 modulation to transmit data reliably.

该无线通信系统利用频率移位键控 频率移位键控调制可靠地传输数据。

2.When sending data over a noisy channel, frequency shift keyed 频率移位键控 helps maintain signal integrity.

在嘈杂的信道上发送数据时，频率移位键控 频率移位键控有助于保持信号完整性。

3.Many amateur radio operators prefer frequency shift keyed 频率移位键控 for its simplicity and effectiveness.

许多业余无线电操作员更喜欢频率移位键控 频率移位键控，因为它简单有效。

4.In digital telephony, frequency shift keyed 频率移位键控 is often used for signaling purposes.

在数字电话中，频率移位键控 频率移位键控通常用于信号传输。

5.The new modem supports frequency shift keyed 频率移位键控 technology for better performance.

新款调制解调器支持频率移位键控 频率移位键控技术，以提高性能。

作文

In the realm of digital communication, various techniques have been developed to enhance the reliability and efficiency of data transmission. One such technique is known as frequency shift keyed, which plays a significant role in modulating signals for effective communication over various mediums. Understanding frequency shift keyed can provide insights into how modern communication systems operate, particularly in wireless networks and data transmission technologies.Frequency shift keyed (FSK) is a method of encoding digital information into a frequency-modulated signal. In this technique, different frequencies represent different binary values. For instance, one frequency might represent a binary '1' while another represents a binary '0'. This modulation scheme is particularly useful because it allows for the reliable transmission of data even in the presence of noise and interference, which are common in many communication environments.One of the primary advantages of frequency shift keyed is its robustness against signal degradation. Unlike amplitude modulation, where variations in signal strength can lead to errors in data interpretation, FSK relies on frequency changes, making it less susceptible to variations in amplitude. This characteristic is especially beneficial in applications such as radio communications, where signals may be affected by physical barriers or atmospheric conditions.Furthermore, frequency shift keyed can be implemented in various forms, including binary FSK (BFSK), where two frequencies are used, and multi-frequency FSK (MFSK), which utilizes more than two frequencies to convey information. The choice of FSK type depends on the specific requirements of the communication system, such as bandwidth availability, power constraints, and the desired data rate.The application of frequency shift keyed extends beyond traditional radio communications. It is also utilized in modem technologies, where data is transmitted over telephone lines. By converting digital data into an FSK signal, modems can effectively communicate with each other, allowing for internet connectivity and data exchange. Additionally, FSK is employed in various wireless protocols, including Bluetooth and RFID systems, demonstrating its versatility and importance in contemporary technology.As we delve deeper into the technical aspects of frequency shift keyed, it becomes evident that its implementation involves complex algorithms and signal processing techniques. Engineers must carefully design the modulation scheme to optimize performance while minimizing errors. This includes considerations such as frequency spacing, symbol duration, and filtering methods, all of which contribute to the overall efficiency of the communication system.In conclusion, frequency shift keyed is a vital modulation technique that has significantly impacted the field of digital communication. Its ability to transmit data reliably in noisy environments makes it an essential tool for engineers and technologists. As we continue to advance in the age of digital communication, understanding and leveraging techniques like frequency shift keyed will be crucial for developing faster, more reliable communication systems that meet the growing demands of our interconnected world.

在数字通信领域，各种技术被开发出来以增强数据传输的可靠性和效率。其中一种技术被称为频移键控，它在调制信号以有效地通过各种媒介进行通信方面发挥着重要作用。理解频移键控可以提供对现代通信系统如何运作的洞察，特别是在无线网络和数据传输技术中。频移键控（FSK）是一种将数字信息编码为频率调制信号的方法。在这种技术中，不同的频率代表不同的二进制值。例如，一个频率可能代表二进制“1”，而另一个频率则代表二进制“0”。这种调制方案特别有用，因为它允许在噪声和干扰存在的情况下可靠地传输数据，而这些干扰在许多通信环境中是常见的。频移键控的主要优点之一是其抗信号衰减的能力。与幅度调制不同，在幅度调制中，信号强度的变化可能导致数据解释中的错误，而FSK依赖于频率的变化，使其对幅度变化不太敏感。这一特性在无线通信等应用中尤为有利，因为信号可能会受到物理障碍或大气条件的影响。此外，频移键控可以以多种形式实现，包括二进制FSK（BFSK），其中使用两个频率，以及多频率FSK（MFSK），它利用多个频率来传达信息。FSK类型的选择取决于通信系统的具体要求，例如带宽可用性、功率限制和所需的数据速率。频移键控的应用超越了传统的无线电通信。它还用于调制解调器技术，其中数据通过电话线传输。通过将数字数据转换为FSK信号，调制解调器可以有效地相互通信，从而实现互联网连接和数据交换。此外，FSK还用于各种无线协议，包括蓝牙和RFID系统，展示了其在当代技术中的多功能性和重要性。随着我们深入研究频移键控的技术细节，显而易见的是，其实施涉及复杂的算法和信号处理技术。工程师必须仔细设计调制方案，以优化性能，同时最小化错误。这包括频率间隔、符号持续时间和过滤方法等考虑因素，所有这些都对通信系统的整体效率产生影响。总之，频移键控是一种重要的调制技术，对数字通信领域产生了重大影响。它在嘈杂环境中可靠传输数据的能力使其成为工程师和技术人员的重要工具。随着我们在数字通信时代的不断进步，理解和利用像频移键控这样的技术对于开发更快、更可靠的通信系统以满足我们互联世界日益增长的需求至关重要。