available noise power

简明释义

可用噪声功率;

英英释义

例句

1.Engineers often measure the available noise power to evaluate the quality of the transmission line.

工程师通常测量可用噪声功率以评估传输线的质量。

2.In a communication system, the available noise power can limit the maximum achievable data rate.

在通信系统中，可用噪声功率可能限制最大可实现的数据速率。

3.Calculating the available noise power helps in designing better filters for audio equipment.

计算可用噪声功率有助于为音频设备设计更好的滤波器。

4.The receiver's sensitivity is determined by the ratio of the signal power to the available noise power, which affects its performance.

接收器的灵敏度由信号功率与可用噪声功率的比率决定，这影响其性能。

5.The available noise power in the channel is crucial for determining the signal-to-noise ratio.

通道中的可用噪声功率对于确定信噪比至关重要。

作文

In the field of telecommunications and signal processing, understanding various parameters is crucial for optimizing system performance. One such important parameter is the available noise power, which plays a significant role in determining the quality of communication systems. The concept of available noise power refers to the amount of noise power that is accessible or can be utilized by a given system at a specified point in the signal path. It is often expressed in decibels (dB) and is vital for assessing the noise figure of amplifiers and other components within a communication link.To comprehend the significance of available noise power, one must first understand the nature of noise in electronic systems. Noise is an unwanted electrical signal that interferes with the desired signal, degrading the overall performance of the system. There are various types of noise, including thermal noise, shot noise, and flicker noise, each contributing differently to the total noise power present in a system. The available noise power is essentially the quantifiable measure of this undesired signal that can affect the clarity and integrity of the transmitted information.In practical terms, engineers need to calculate the available noise power to design efficient communication systems. For instance, when designing a receiver, the available noise power helps determine the minimum detectable signal level. By knowing how much noise power is available, engineers can optimize the receiver's sensitivity, ensuring that it can effectively distinguish between the desired signal and the background noise.Moreover, the available noise power impacts the overall signal-to-noise ratio (SNR), which is a critical metric in evaluating system performance. A higher SNR indicates a clearer signal, while a lower SNR suggests that noise is dominating the signal. Therefore, understanding the available noise power allows engineers to make informed decisions about component selection and system architecture, ultimately leading to better communication quality.In addition to its importance in receiver design, the available noise power is also relevant in the context of transmitters and signal processing algorithms. For example, when implementing error correction techniques, knowing the available noise power can help in adjusting the coding schemes to improve data transmission reliability. Similarly, in adaptive modulation schemes, the available noise power can guide the choice of modulation formats based on current channel conditions, maximizing throughput while minimizing errors.In conclusion, the concept of available noise power is fundamental to the field of telecommunications. It serves as a key parameter that influences system design, performance evaluation, and optimization strategies. By accurately assessing the available noise power, engineers can enhance the reliability and efficiency of communication systems, ensuring that they meet the demands of modern data transmission. As technology continues to advance, the ability to effectively manage and mitigate noise will remain a critical focus for researchers and practitioners alike.

在电信和信号处理领域，理解各种参数对于优化系统性能至关重要。其中一个重要参数是可用噪声功率，它在确定通信系统质量方面发挥着重要作用。可用噪声功率的概念指的是在指定信号路径点上，给定系统可以访问或利用的噪声功率的数量。它通常以分贝（dB）表示，对于评估放大器和通信链路中其他组件的噪声系数至关重要。要理解可用噪声功率的重要性，首先必须了解电子系统中噪声的性质。噪声是一种干扰所需信号的非期望电信号，会降低系统的整体性能。噪声有多种类型，包括热噪声、散粒噪声和闪烁噪声，每种噪声对系统中存在的总噪声功率的贡献不同。可用噪声功率本质上是可以影响传输信息的清晰度和完整性的这种不必要信号的可量化测量。在实际操作中，工程师需要计算可用噪声功率来设计高效的通信系统。例如，在设计接收器时，可用噪声功率有助于确定最小可检测信号水平。通过了解可用多少噪声功率，工程师可以优化接收器的灵敏度，确保其能够有效区分所需信号和背景噪声。此外，可用噪声功率还会影响整体信噪比（SNR），这是评估系统性能的关键指标。较高的信噪比表示信号更清晰，而较低的信噪比则表明噪声占据了信号。因此，理解可用噪声功率使工程师能够就组件选择和系统架构做出明智的决策，最终提高通信质量。除了在接收器设计中的重要性外，可用噪声功率在发射机和信号处理算法的背景下也相关。例如，在实施错误更正技术时，了解可用噪声功率可以帮助调整编码方案，以提高数据传输的可靠性。同样，在自适应调制方案中，可用噪声功率可以根据当前信道条件指导调制格式的选择，从而最大化吞吐量，同时最小化错误。总之，可用噪声功率的概念对于电信领域至关重要。它作为一个关键参数，影响着系统设计、性能评估和优化策略。通过准确评估可用噪声功率，工程师可以增强通信系统的可靠性和效率，确保它们满足现代数据传输的需求。随着技术的不断进步，有效管理和减轻噪声的能力将始终是研究人员和从业者关注的重点。