noise equivalent power

简明释义

噪声等效功率

英英释义

例句

1.The noise equivalent power (噪声等效功率) is critical in evaluating the performance of radio frequency receivers.

在评估射频接收器的性能时，噪声等效功率(噪声等效功率)至关重要。

2.A lower noise equivalent power (噪声等效功率) indicates a better signal-to-noise ratio.

较低的噪声等效功率(噪声等效功率)表示更好的信噪比。

3.Engineers often optimize the noise equivalent power (噪声等效功率) of sensors to improve their performance.

工程师们常常优化传感器的噪声等效功率(噪声等效功率)以提高其性能。

4.In low-light conditions, the noise equivalent power (噪声等效功率) of a camera determines how well it can capture images.

在低光条件下，相机的噪声等效功率(噪声等效功率)决定了它捕捉图像的能力。

5.The sensitivity of the detector can be measured in terms of its noise equivalent power (噪声等效功率).

探测器的灵敏度可以用其噪声等效功率(噪声等效功率)来测量。

作文

In the realm of electronics and communications, understanding various parameters is crucial for optimizing performance. One such important parameter is the concept of noise equivalent power, which plays a significant role in the analysis of signal detection systems. The term noise equivalent power refers to the amount of noise power that is equivalent to the signal power in a given system. Essentially, it quantifies the minimum detectable signal level in the presence of noise, thereby providing insights into the sensitivity of a system. This concept is particularly relevant in fields such as radio astronomy, telecommunications, and sensor technology.To grasp the significance of noise equivalent power, one must first understand the nature of noise in electronic systems. Noise is an unwanted signal that can obscure or interfere with the desired signal. It originates from various sources, including thermal fluctuations, electronic components, and environmental factors. In many applications, the challenge lies in distinguishing the desired signal from this background noise. The noise equivalent power helps engineers and scientists determine how well a system can perform under these conditions.When evaluating a detection system, the noise equivalent power is often expressed in terms of power spectral density, which indicates how power is distributed across different frequencies. By calculating the noise equivalent power, one can ascertain the minimum signal strength required for reliable detection, allowing for better design and optimization of communication systems. For instance, in radio telescopes, the noise equivalent power is critical for detecting faint celestial signals amidst the cosmic noise.Moreover, the noise equivalent power is closely related to other performance metrics, such as sensitivity and dynamic range. Sensitivity refers to the ability of a system to detect weak signals, while dynamic range represents the range between the smallest and largest signals a system can process. A lower noise equivalent power indicates higher sensitivity, meaning the system can detect weaker signals without being overwhelmed by noise.In practical applications, engineers strive to minimize the noise equivalent power to enhance system performance. This can involve using advanced materials, improving circuit designs, and employing signal processing techniques to filter out noise. By doing so, they can achieve a more favorable signal-to-noise ratio, which is essential for effective communication and data transmission.In conclusion, the concept of noise equivalent power is fundamental in the field of electronics and communications. It provides a measure of the noise level in relation to the signal, allowing for the assessment of system performance. Understanding noise equivalent power enables engineers and researchers to design more sensitive and efficient detection systems, ultimately leading to advancements in various technologies. As we continue to explore the frontiers of communication and signal processing, the importance of mastering concepts like noise equivalent power cannot be overstated, as they are key to unlocking new possibilities in our increasingly interconnected world.

在电子和通信领域，理解各种参数对于优化性能至关重要。其中一个重要参数是“噪声等效功率”的概念，它在信号检测系统的分析中发挥着重要作用。“噪声等效功率”指的是在给定系统中与信号功率等效的噪声功率的数量。本质上，它量化了在噪声存在的情况下可检测的最小信号水平，从而提供了对系统灵敏度的洞察。这个概念在射电天文学、通信和传感器技术等领域尤其相关。要理解“噪声等效功率”的重要性，首先必须了解电子系统中噪声的性质。噪声是干扰或遮蔽所需信号的多余信号。它源于各种来源，包括热波动、电子元件和环境因素。在许多应用中，挑战在于从背景噪声中区分所需信号。“噪声等效功率”帮助工程师和科学家确定在这些条件下系统的可靠探测能力。在评估检测系统时，“噪声等效功率”通常以功率谱密度的形式表示，指示功率在不同频率上的分布。通过计算“噪声等效功率”，可以确定可靠检测所需的最小信号强度，从而允许更好地设计和优化通信系统。例如，在射电望远镜中，“噪声等效功率”对于在宇宙噪声中检测微弱的天体信号至关重要。此外，“噪声等效功率”与其他性能指标，如灵敏度和动态范围密切相关。灵敏度是指系统检测微弱信号的能力，而动态范围表示系统可以处理的最小和最大信号之间的范围。较低的“噪声等效功率”表示更高的灵敏度，这意味着系统可以在不被噪声淹没的情况下检测到更弱的信号。在实际应用中，工程师努力最小化“噪声等效功率”以提高系统性能。这可能涉及使用先进的材料、改善电路设计以及采用信号处理技术来过滤噪声。通过这样做，他们可以实现更有利的信噪比，这对于有效的通信和数据传输至关重要。总之，“噪声等效功率”的概念在电子和通信领域是基础性的。它提供了噪声水平与信号的关系测量，使得对系统性能的评估成为可能。理解“噪声等效功率”使工程师和研究人员能够设计出更灵敏和高效的检测系统，最终推动各种技术的进步。随着我们继续探索通信和信号处理的前沿，掌握“噪声等效功率”等概念的重要性不容小觑，因为它们是开启我们日益互联世界新可能性的关键。