receiver directivity index

简明释义

声纳接收器方向指数

英英释义

例句

1.To improve the quality of the audio signal, we adjusted the receiver directivity index of the microphone.

为了提高音频信号的质量，我们调整了麦克风的接收器方向性指数。

2.The receiver directivity index can significantly affect the overall system performance in wireless networks.

在无线网络中，接收器方向性指数可以显著影响整个系统的性能。

3.In the design phase, we need to consider the receiver directivity index for accurate communication.

在设计阶段，我们需要考虑接收器方向性指数以确保准确的通信。

4.A higher receiver directivity index indicates better signal reception from a specific direction.

更高的接收器方向性指数表明来自特定方向的信号接收效果更好。

5.The engineer calculated the receiver directivity index to optimize the antenna's performance.

工程师计算了接收器方向性指数以优化天线的性能。

作文

In the field of telecommunications and signal processing, understanding various parameters that influence the performance of receivers is crucial. One such important parameter is the receiver directivity index, which plays a significant role in determining how effectively a receiver can pick up signals from a specific direction while minimizing interference from other directions. The receiver directivity index is essentially a measure of the directional sensitivity of a receiver, indicating how much stronger the signal is when coming from a preferred direction compared to signals arriving from other angles.To comprehend the significance of the receiver directivity index, it is essential to first understand the concept of directivity itself. Directivity refers to the ability of an antenna or receiver to focus energy in a particular direction. A high directivity means that the device is more sensitive to signals coming from a specific direction, thus enhancing its overall performance in that orientation. This characteristic is particularly beneficial in environments where multiple signals may be present, as it allows the receiver to isolate and amplify the desired signal while reducing noise and interference from unwanted sources.The receiver directivity index is typically expressed in decibels (dB) and can be calculated by comparing the power received from the preferred direction to the average power received from all other directions. A higher value of the receiver directivity index indicates better performance, as it implies that the receiver can effectively discriminate between signals based on their direction. This property is especially valuable in applications such as radar systems, satellite communications, and wireless networks, where the quality of signal reception can significantly impact overall system performance.Moreover, the receiver directivity index is not only a theoretical concept but has practical implications in the design and deployment of communication systems. Engineers and designers must consider the receiver directivity index when selecting antennas and positioning them in a way that maximizes their effectiveness. For instance, in urban environments where buildings and other structures can cause signal reflections and multipath interference, a high receiver directivity index can help mitigate these issues by ensuring that the receiver remains focused on the intended signal source.In addition to improving signal reception, a high receiver directivity index can also enhance the overall efficiency of a communication system. By reducing the amount of interference and noise that the receiver has to process, the system can allocate more resources to amplifying and decoding the desired signal. This can lead to improved data rates and more reliable communication links, which are critical in today's fast-paced digital world.In conclusion, the receiver directivity index is a vital parameter in the realm of telecommunications that directly influences the performance and effectiveness of receivers. By understanding and optimizing this index, engineers can design more robust communication systems that are capable of delivering high-quality signals in challenging environments. As technology continues to advance, the importance of parameters like the receiver directivity index will only grow, underscoring the need for ongoing research and development in this field.

在电信和信号处理领域，理解影响接收器性能的各种参数至关重要。其中一个重要参数是接收器方向性指数，它在确定接收器如何有效地从特定方向接收信号，同时最小化来自其他方向的干扰方面起着重要作用。接收器方向性指数本质上是接收器方向灵敏度的衡量标准，表明来自优选方向的信号比来自其他角度的信号强多少。要理解接收器方向性指数的重要性，首先必须了解方向性的概念。方向性指的是天线或接收器在特定方向上集中能量的能力。高方向性意味着设备对来自特定方向的信号更敏感，从而增强其在该方向上的整体性能。这一特性在存在多个信号的环境中尤为有益，因为它使接收器能够隔离和放大所需信号，同时减少来自不必要源的噪声和干扰。接收器方向性指数通常以分贝（dB）表示，可以通过比较来自优选方向的功率与来自所有其他方向的平均功率来计算。接收器方向性指数的值越高，表明性能越好，因为这意味着接收器能够有效地区分基于方向的信号。这一特性在雷达系统、卫星通信和无线网络等应用中尤其有价值，因为信号接收质量会显著影响整体系统性能。此外，接收器方向性指数不仅是一个理论概念，而且在通信系统的设计和部署中具有实际意义。工程师和设计人员在选择天线和定位时必须考虑接收器方向性指数，以最大限度地提高其有效性。例如，在建筑物和其他结构可能导致信号反射和多径干扰的城市环境中，高接收器方向性指数可以通过确保接收器保持关注于预期信号源来帮助减轻这些问题。除了改善信号接收外，高接收器方向性指数还可以提高通信系统的整体效率。通过减少接收器必须处理的干扰和噪声量，系统可以将更多资源分配给放大和解码所需信号。这可以导致数据速率的提高和更可靠的通信链路，而这些在当今快速发展的数字世界中至关重要。总之，接收器方向性指数是电信领域一个重要参数，直接影响接收器的性能和有效性。通过理解和优化该指数，工程师可以设计出更强大的通信系统，能够在具有挑战性的环境中提供高质量的信号。随着技术的不断进步，像接收器方向性指数这样的参数的重要性只会增加，强调了该领域持续研究和开发的必要性。