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Updated: Feb 5, 2026

Luminescence Lifetime Imaging of O2 with a Frequency-Domain-Based Camera System
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一种基于波形波段的频域方法,用于准确检测多种作物的疾病

Jiamu Zhao1, Yongchao Liang2, Gongmin Wei1

  • 1College of Big Data and information engineering, Guizhou University, Guiyang, 550025, China.

Scientific reports
|February 3, 2026
PubMed
概括

新的农作物疾病识别模型WGA-YOLO使用波形通道重新校准 (WCR) 和增强的卷积来准确检测田间病变. 它提供了提高效率和部署友好性,同时保持强大的性能.

关键词:
发现作物疾病检测检测作物疾病检测下降采样 下降采样精准农业 精准农业 精准农业波段变换的波段变换是什么你只看一次 (YOLO)

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Linear Approximation in Frequency Domain01:26

Linear Approximation in Frequency Domain

Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
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Frequency-Domain Interpretation of PD Control

Proportional-Derivative (PD) controllers are widely used in fan control systems to improve stability and performance. A fan control system can be effectively represented using a Bode plot to illustrate the impact of a PD controller through its transfer function. The Bode plot visually conveys how PD control modifies the fan's response across various frequencies, providing a frequency domain interpretation of the controller's behavior.
The proportional control gain, combined with the...
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Time and frequency -Domain Interpretation of PI Control

Proportional-Integral (PI) controllers are essential in many control systems to improve stability and performance. They are commonly used in everyday devices like thermostats to enhance system damping and reduce steady-state error. When the zero in the controller's transfer function is optimally placed, the system benefits significantly in terms of stability and accuracy.
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Time and frequency -Domain Interpretation of Phase-lag Control

Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
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A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
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