single side band receiver

简明释义

单边带接收机

英英释义

例句

1.A single side band receiver is essential for listening to HF radio broadcasts.

要收听HF广播，单边带接收机是必不可少的。

2.In emergency situations, a single side band receiver can help locate distress signals.

在紧急情况下，单边带接收机可以帮助定位求救信号。

3.For better audio quality, many pilots rely on a single side band receiver during flights.

为了获得更好的音频质量，许多飞行员在飞行中依赖于单边带接收机。

4.The technician explained how to set up the single side band receiver for optimal performance.

技术人员解释了如何设置单边带接收机以获得最佳性能。

5.The amateur radio operator used a single side band receiver to communicate with others over long distances.

这位业余无线电爱好者使用单边带接收机与其他人进行远程通信。

作文

In the world of radio communications, one of the most important technologies that has been developed is the single side band receiver. This device plays a crucial role in enabling clear and efficient communication over long distances. To understand the significance of a single side band receiver, it is essential to first grasp the basics of how radio signals work. Radio waves are a form of electromagnetic radiation that can travel through the air. When we transmit audio signals over these waves, we typically use amplitude modulation (AM) or frequency modulation (FM). However, AM has its limitations, particularly when it comes to bandwidth and clarity of the signal. This is where the single side band receiver comes into play.The single side band receiver is an advanced type of AM receiver that only uses one of the two sidebands created during the modulation process. In traditional AM broadcasting, both the upper and lower sidebands, along with the carrier wave, are transmitted. This results in a larger bandwidth requirement, which can lead to interference and reduced signal quality. By contrast, the single side band receiver eliminates one sideband and the carrier, effectively doubling the efficiency of the transmission. This means that operators can communicate using less power while achieving clearer audio quality.One of the key applications of the single side band receiver is in amateur radio, also known as ham radio. Enthusiasts around the world utilize this technology to connect with others, often across vast distances. The clarity and efficiency of single side band receivers make them ideal for long-range communication, especially in situations where other forms of communication may be unavailable.Moreover, single side band receivers are widely used in marine and aviation communications. Ships and aircraft rely on these devices to maintain contact with control towers and other vessels. The ability to transmit clear messages over long distances is vital in these industries, where safety and coordination are paramount.In addition to their practical applications, single side band receivers also represent a significant advancement in radio technology. They have made it possible for users to engage in conversations without the clutter of unnecessary noise, allowing for more effective communication. This is particularly important in emergency situations, where every word counts.Furthermore, the technology behind single side band receivers continues to evolve. Modern devices are equipped with digital signal processing capabilities, which further enhance audio clarity and reduce background noise. This ongoing innovation ensures that the single side band receiver remains relevant in the ever-changing landscape of communication technology.In conclusion, the single side band receiver is an invaluable tool in the realm of radio communications. Its ability to provide clear, efficient, and reliable communication over long distances has made it a staple in various industries, including amateur radio, marine, and aviation. As technology advances, the single side band receiver will undoubtedly continue to play a critical role in connecting people and facilitating communication across the globe.

在无线电通信的世界中，已经开发出的一项重要技术是单边带接收机。该设备在实现长距离清晰高效的通信中发挥了至关重要的作用。要理解单边带接收机的重要性，首先必须掌握无线电信号的基本原理。无线电波是一种可以通过空气传播的电磁辐射形式。当我们通过这些波传输音频信号时，通常使用幅度调制（AM）或频率调制（FM）。然而，AM有其局限性，特别是在带宽和信号清晰度方面。这就是单边带接收机发挥作用的地方。单边带接收机是一种先进的AM接收机，仅使用调制过程中产生的两个边带中的一个。在传统的AM广播中，上边带和下边带以及载波都会被传输。这导致更大的带宽需求，从而可能导致干扰和信号质量降低。相比之下，单边带接收机消除了一个边带和载波，有效地将传输效率翻倍。这意味着操作员可以在更少的功率下进行通信，同时实现更清晰的音频质量。单边带接收机的关键应用之一是在业余无线电，也称为业余无线电爱好者。全球的爱好者利用这项技术与他人联系，通常跨越广阔的距离。单边带接收机的清晰度和效率使其成为长距离通信的理想选择，尤其是在其他通信形式可能不可用的情况下。此外，单边带接收机在海洋和航空通信中也被广泛使用。船舶和飞机依赖这些设备与控制塔和其他船只保持联系。能够在长距离上传输清晰的信息在这些行业中至关重要，因为安全和协调是重中之重。除了实际应用外，单边带接收机还代表了无线电技术的重要进步。它们使用户能够进行没有多余噪音的对话，从而实现更有效的通信。这在紧急情况下尤为重要，因为每一个字都至关重要。此外，单边带接收机背后的技术仍在不断发展。现代设备配备了数字信号处理能力，进一步增强了音频清晰度并减少了背景噪音。这种持续的创新确保了单边带接收机在不断变化的通信技术环境中保持相关性。总之，单边带接收机在无线电通信领域是一种无价的工具。它提供清晰、高效和可靠的长距离通信的能力，使其成为业余无线电、海洋和航空等各个行业的基础。随着技术的进步，单边带接收机无疑将在全球范围内连接人们和促进沟通中继续发挥关键作用。