equivalent isotropically radiated power

简明释义

全向同性等效辐射功率

英英释义

例句

1.In radar systems, the equivalent isotropically radiated power helps determine the effective range of the radar signal.

在雷达系统中，等效各向同性辐射功率有助于确定雷达信号的有效范围。

2.The concept of equivalent isotropically radiated power is crucial in understanding how antennas transmit signals in telecommunications.

在理解天线如何在电信中传输信号时，等效各向同性辐射功率的概念至关重要。

3.The equivalent isotropically radiated power can be used to compare different antenna designs and their efficiencies.

可以使用等效各向同性辐射功率来比较不同天线设计及其效率。

4.When designing wireless networks, engineers often calculate the equivalent isotropically radiated power to ensure optimal coverage.

在设计无线网络时，工程师通常计算等效各向同性辐射功率以确保最佳覆盖。

5.To comply with regulations, operators must keep their equivalent isotropically radiated power below specified limits.

为了遵守规定，运营商必须将其等效各向同性辐射功率保持在指定限制以下。

作文

In the field of telecommunications and radio engineering, understanding the concept of equivalent isotropically radiated power (EIRP) is crucial for designing effective communication systems. EIRP is a measure that combines the power output of a transmitter with the gain of its antenna, providing a standardized way to express the strength of a signal as it radiates through space. Essentially, it represents the amount of power that would need to be emitted by an isotropic antenna—one that radiates power uniformly in all directions—to achieve the same signal strength in a specific direction as the actual antenna does. This concept is particularly important in scenarios where signals must travel long distances or penetrate obstacles, such as buildings or trees.The formula for calculating equivalent isotropically radiated power involves several components. It starts with the transmitter's output power, typically measured in watts. This figure is then adjusted by adding the gain of the transmitting antenna, which is expressed in decibels (dB). The gain indicates how much the antenna focuses energy in a particular direction compared to an isotropic radiator. The formula can be summarized as follows: EIRP (dBm) = Transmitter Power (dBm) + Antenna Gain (dBi). By using this equation, engineers can determine how effectively a signal will propagate through the environment.One of the primary applications of EIRP is in the design and analysis of wireless communication networks, such as cellular networks, satellite communications, and Wi-Fi systems. For instance, when planning a cellular network, engineers use EIRP calculations to ensure that each cell tower provides adequate coverage to its intended area while minimizing interference with neighboring towers. Similarly, in satellite communications, understanding EIRP helps in determining the effective coverage area of a satellite beam and ensuring that the signal reaches ground stations with sufficient strength.Moreover, regulatory bodies often set limits on the maximum allowable EIRP for various frequency bands to prevent interference between different systems. By monitoring EIRP levels, authorities can ensure that communication systems operate efficiently and safely within designated frequency ranges. This regulation is vital in crowded frequency environments, such as urban areas, where multiple wireless services compete for spectrum access.In addition to its practical applications, the concept of equivalent isotropically radiated power also serves as a foundation for understanding more complex phenomena in radio wave propagation. For example, factors such as terrain, atmospheric conditions, and obstacles can significantly affect the actual signal strength received at a given location. By incorporating these variables into EIRP calculations, engineers can create more accurate models of signal behavior and improve the reliability of communication systems.In conclusion, mastering the concept of equivalent isotropically radiated power is essential for professionals in the telecommunications industry. It not only aids in designing efficient communication networks but also ensures compliance with regulatory standards. As technology continues to evolve, the importance of EIRP will only grow, making it a fundamental aspect of modern wireless communication engineering. Understanding EIRP allows engineers to optimize system performance, enhance user experience, and contribute to the seamless connectivity that we rely on today.

在电信和无线电工程领域，理解“等效各向同性辐射功率” (EIRP) 的概念对于设计有效的通信系统至关重要。EIRP 是一种度量，它将发射机的功率输出与其天线的增益结合在一起，提供了一种标准化的方式来表达信号在空间中辐射的强度。本质上，它代表了一个各向同性天线—一种在所有方向上均匀辐射功率的天线—需要发出的功率，以便在特定方向上达到与实际天线相同的信号强度。这个概念在信号必须长距离传播或穿透障碍物（如建筑物或树木）的场景中特别重要。计算“等效各向同性辐射功率”的公式涉及多个组成部分。它从发射机的输出功率开始，通常以瓦特为单位测量。然后通过添加发射天线的增益进行调整，增益以分贝（dB）表示。增益指示天线在特定方向上比各向同性辐射器集中能量的程度。公式可以总结如下：EIRP (dBm) = 发射功率 (dBm) + 天线增益 (dBi)。通过使用这个方程，工程师可以确定信号在环境中的传播效果。EIRP 的主要应用之一是在无线通信网络的设计和分析中，例如蜂窝网络、卫星通信和 Wi-Fi 系统。例如，在规划蜂窝网络时，工程师使用 EIRP 计算来确保每个基站为其预定区域提供足够的覆盖，同时最小化与邻近基站的干扰。同样，在卫星通信中，了解 EIRP 有助于确定卫星波束的有效覆盖区域，并确保信号以足够的强度到达地面站。此外，监管机构通常会对各种频段的最大允许 EIRP 设置限制，以防止不同系统之间的干扰。通过监测 EIRP 水平，当局可以确保通信系统在指定频率范围内高效、安全地运行。这种监管在频率环境拥挤的情况下至关重要，例如城市地区，多个无线服务争夺频谱访问。除了其实际应用外，“等效各向同性辐射功率”的概念还为理解无线电波传播中的更复杂现象奠定了基础。例如，地形、气象条件和障碍物等因素可以显著影响在给定位置接收到的实际信号强度。通过将这些变量纳入 EIRP 计算，工程师可以创建更准确的信号行为模型，提高通信系统的可靠性。总之，掌握“等效各向同性辐射功率”的概念对于电信行业的专业人士至关重要。它不仅有助于设计高效的通信网络，还确保遵守监管标准。随着技术的不断发展，EIRP 的重要性只会增加，使其成为现代无线通信工程的基本方面。理解 EIRP 使工程师能够优化系统性能、提升用户体验，并为我们今天所依赖的无缝连接做出贡献。