homodyne

简明释义

英[ˈhɒmədaɪn]美[ˈhɑːmoʊdaɪn]

n. [物] 零差

英英释义

单词用法

同义词

反义词

例句

1.Using the way of homodyne coherent detection, a fiber laser Doppler vibrometer is designed and completed.

采用零差的相干探测方式，设计并实现了一套光纤结构的激光多普勒振动计。

2.The hybrid integrated optical accelerometer is a kind of practical accelerometer, which adopts optical phase modulation and alternating current phase tracking and homodyne compensation scheme (PTAC).

混合集成光学加速度计是一种实用型的实时加速度传感器，在信号处理过程中采用了光相位调制和交流相位跟踪零差补偿技术(PTAC)。

3.The system is based on Michelson interferometer. It USES a fiber laser with narrow linewidth as light source, and adopts homodyne demodulation with phase generated carrier scheme to restore signal.

该系统基于迈克尔逊干涉仪结构，以窄线宽光纤激光器为光源，采用相位载波零差解调方案实现信号的还原。

4.The hybrid integrated optical accelerometer is a kind of practical accelerometer, which adopts optical phase modulation and alternating current phase tracking and homodyne compensation scheme (PTAC).

混合集成光学加速度计是一种实用型的实时加速度传感器，在信号处理过程中采用了光相位调制和交流相位跟踪零差补偿技术(PTAC)。

5.An alternating current phase tracking (PTAC) homodyne scheme has been used to process output signal of the Michelson interferometer.

在信号处理过程中采用了交流相位跟踪零差补偿技术(PTAC)。

6.With the former experience and up to date technology about homodyne interferometer detection, a kind of automatically scaling system on laser speckle radar is developed.

结合最新的零差式干涉探测技术，初步研制出激光散斑分辨雷达自动测量系统。

7.A laser huge pulse irradiates on aluminium plates to cause ultrasonic waves. The waveform of the rear surface displacement produced by ultrasounds is detected with optical homodyne.

激光巨脉冲在金属铝块上产生超声波，由光学零差探测得到超声引起的后表面位移的波形。

8.The shot noise and thermal noise with homodyne demodulation technique is given in this article. And phase noise induced with different time delay is also analyzed.

给出了采用零差解调技术时干涉系统的散粒噪声和热噪声，并且分析了在不同时间延迟情况下的相位噪声。

9.The homodyne technique allows for precise measurements in quantum optics.

同频技术允许在量子光学中进行精确测量。

10.The homodyne approach is often utilized in radio astronomy for better signal clarity.

在射电天文学中，通常采用同频方法以获得更好的信号清晰度。

11.In optical communication, the use of a homodyne receiver can significantly improve the signal quality.

在光通信中，使用同频接收器可以显著提高信号质量。

12.By using a homodyne setup, we were able to achieve higher sensitivity in our experiments.

通过使用同频设备，我们能够在实验中实现更高的灵敏度。

13.Researchers employed a homodyne detection method to analyze the phase of the light wave.

研究人员采用同频检测方法来分析光波的相位。

作文

In the field of signal processing and communications, various techniques are utilized to improve the quality and clarity of transmitted signals. One such technique is known as homodyne, which plays a crucial role in demodulating signals, particularly in radio frequency applications. The term homodyne refers to a method where the local oscillator operates at the same frequency as the incoming signal. This approach allows for the effective extraction of information from the carrier wave without the need for complex frequency adjustments. The concept of homodyne detection is particularly advantageous in scenarios where high sensitivity and precision are required. For instance, in optical communications, homodyne detection can be employed to measure phase variations in light waves, enabling the transmission of data with minimal error rates. By using a homodyne technique, engineers can achieve a higher signal-to-noise ratio, which is essential for maintaining the integrity of the transmitted information.Moreover, the homodyne method is not limited to traditional radio or optical systems; it has also found applications in quantum optics and radar technology. In quantum optics, homodyne detection is used to analyze quantum states of light, providing insights into phenomena such as entanglement and superposition. Similarly, in radar systems, homodyne techniques allow for the precise measurement of distance and velocity by comparing the phase of reflected signals with those of the emitted signals.Despite its advantages, implementing homodyne detection can pose challenges, particularly in terms of maintaining phase coherence between the local oscillator and the incoming signal. Any drift or mismatch in frequency can lead to significant errors in the demodulated output. Therefore, engineers often employ feedback mechanisms to stabilize the local oscillator, ensuring that the homodyne detection remains accurate over time.In conclusion, the homodyne technique is a powerful tool in the realm of signal processing, offering enhanced performance in various applications. Its ability to operate with high sensitivity and precision makes it an invaluable method for extracting information from complex signals. As technology continues to evolve, the relevance of homodyne detection will likely expand, paving the way for advancements in communication systems, radar technologies, and even quantum computing. Understanding the principles and applications of homodyne detection is essential for anyone involved in these cutting-edge fields, as it represents a fundamental aspect of modern signal processing methodologies.

在信号处理和通信领域，各种技术被用来提高传输信号的质量和清晰度。其中一种技术被称为同频检测，它在解调信号中发挥着至关重要的作用，特别是在无线电频率应用中。术语同频检测指的是一种方法，其中本地振荡器以与输入信号相同的频率运行。这种方法允许有效提取载波波中的信息，而无需复杂的频率调整。同频检测的概念在需要高灵敏度和精确度的场景中尤其具有优势。例如，在光通信中，可以使用同频检测来测量光波的相位变化，从而以最小的错误率传输数据。通过使用同频检测技术，工程师可以实现更高的信噪比，这对于保持传输信息的完整性至关重要。此外，同频检测方法不仅限于传统的无线电或光学系统；它还在量子光学和雷达技术中找到了应用。在量子光学中，同频检测用于分析光的量子态，提供关于纠缠和叠加等现象的见解。同样，在雷达系统中，同频检测技术通过比较反射信号与发射信号的相位来实现距离和速度的精确测量。尽管有其优势，但实施同频检测可能会面临挑战，特别是在保持本地振荡器与输入信号之间的相位一致性方面。任何频率漂移或不匹配都可能导致解调输出中的重大错误。因此，工程师通常采用反馈机制来稳定本地振荡器，确保同频检测在一段时间内保持准确。总之，同频检测技术是信号处理领域的一种强大工具，在各种应用中提供了增强的性能。它能够以高灵敏度和精确度运行，使其成为从复杂信号中提取信息的宝贵方法。随着技术的不断发展，同频检测的相关性可能会扩大，为通信系统、雷达技术甚至量子计算的进步铺平道路。理解同频检测的原理和应用对于任何参与这些前沿领域的人来说都是至关重要的，因为它代表了现代信号处理方法的一个基本方面。