对于复杂的网络使用量子化测量和放大和转发中继的基于无香卡尔曼过器的远程状态估计
IEEE transactions on cybernetics
|August 30, 2024
概括
这项研究引入了一种新型状态估计器,用于具有概率定量和放大和向前 (AF) 继电器的复杂网络,以确保稳定的远程估计. 没有香味的卡尔曼波器方法最大限度地减少了估计误差协差,从而提高了网络性能.
科学领域:
- 控制系统工程 控制系统工程
- 网络科学 网络科学
- 信号处理 信号处理
背景情况:
- 复杂的网络容易受到噪音和带宽限制的影响.
- 概率定量和放大和向前 (AF) 继电器在远程状态估计中带来了挑战.
- 非线性和随机动力学使准确的系统建模复杂化.
研究的目的:
- 为离散时间复杂网络开发一个强大的远程状态估计方法.
- 为应对概率定量化和AF中继所带来的挑战.
- 为了最大限度地减少估计误差协变率并确保稳定性.
主要方法:
- 使用无气味卡尔曼波器 (UKF) 进行状态估计.
- 设计了一种新型估计器,最大限度地减少估计误差协差的上限.
- 为估计误差的指数边界性推导了足够的条件.
主要成果:
- 一个新的状态估计器成功地为指定的网络条件设计.
- 拟议的方法有效地将估计误差协差降到最低.
- 确定了确保估计错误的平均平方指数局限性的条件.
结论:
- 开发的状态估计器为复杂网络中的远程估计提供了有效的解决方案,具有概率定量化和AF中继.
- 该方法确保了估计过程的稳定性和可靠性.
- 数字模拟验证了拟议方案的有效性.
相关概念视频
State Space Representation
178
The frequency-domain technique, commonly used in analyzing and designing feedback control systems, is effective for linear, time-invariant systems. However, it falls short when dealing with nonlinear, time-varying, and multiple-input multiple-output systems. The time-domain or state-space approach addresses these limitations by utilizing state variables to construct simultaneous, first-order differential equations, known as state equations, for an nth-order system.
Consider an RLC circuit, a...
Consider an RLC circuit, a...
178
State Space to Transfer Function
185
The conversion of state-space representation to a transfer function is a fundamental process in system analysis. It provides a method for transitioning from a time-domain description to a frequency-domain representation, which is crucial for simplifying the analysis and design of control systems.
The transformation process begins with the state-space representation, characterized by the state equation and the output equation. These equations are typically represented as:
The transformation process begins with the state-space representation, characterized by the state equation and the output equation. These equations are typically represented as:
185
Transfer Function to State Space
209
State-space representation is a powerful tool for simulating physical systems on digital computers, necessitating the conversion of the transfer function into state-space form. Consider an nth-order linear differential equation with constant coefficients, like those encountered in an RLC circuit. The state variables are selected as the output and its n−1 derivatives. Differentiating these variables and substituting them back into the original equation produces the state equations.
In an...
In an...
209
Sampling Continuous Time Signal
218
In signal processing, a continuous-time signal can be sampled using an impulse-train sampling technique, followed by the zero-order hold method. Impulse-train sampling involves the use of a periodic impulse train, which consists of a series of delta functions spaced at regular intervals determined by the sampling period. When a continuous-time signal is multiplied by this impulse train, it generates impulses with amplitudes corresponding to the signal's values at the sampling points.
In the...
In the...
218
Linear time-invariant Systems
229
A system is linear if it displays the characteristics of homogeneity and additivity, together termed the superposition property. This principle is fundamental in all linear systems. Linear time-invariant (LTI) systems include systems with linear elements and constant parameters.
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
The input-output behavior of an LTI system can be fully defined by its response to an impulsive excitation at its input. Once this impulse response is known, the system's reaction to any other input can be...
229
Linear Approximation in Frequency Domain
88
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.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
88


