对压缩分布式卡尔曼过器对马科维亚切换拓学的分析
IEEE transactions on cybernetics
|March 3, 2025
概括
本研究引入了一个压缩分布式卡尔曼波器 (CDKF),用于估计随机通信变化的动态系统中的稀疏状态. CDKF有效地减少了数据维度,以提高估计准确性和稳定性分析.
科学领域:
- 控制系统工程 控制系统工程
- 信号处理 信号处理
- 信息理论 信息理论
背景情况:
- 由于复杂的通信拓,在随机动态系统中对高维稀疏状态的分布式估计具有挑战性.
- 随机切换的通信链路由马科夫链控制引入系统矩阵中的非静止性和非独立性.
研究的目的:
- 开发一种新的压缩分布式卡尔曼波器 (CDKF),用于在具有时间变化的通信拓的随机动态系统中准确的状态估计.
- 在比现有方法更弱的条件下分析拟议的CDKF的稳定性和性能.
主要方法:
- 利用压缩传感 (CS) 理论在每个传感器上进行数据压缩.
- 在压缩的低维空间中采用扩散策略和共变交叉融合.
- 应用重建技术来恢复原来的高维稀疏状态向量.
- 利用随机稳定理论,马尔科夫链理论和CS理论进行稳定性分析.
主要成果:
- 拟议的CDKF有效地估计了高维稀疏状态向量.
- 稳定性分析在压缩合作激发条件下确定了估计误差的上限.
- 这种条件明显低于传统的非压缩集体可观测条件.
结论:
- CDKF为具有复杂通信环境的动态系统中分布式估计提供了强大而高效的解决方案.
- 理论框架提供了严格的稳定性分析,为实际应用铺平了道路.
相关概念视频
Transfer Function to State Space
185
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...
185
State Space Representation
160
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...
160
BIBO stability of continuous and discrete -time systems
321
System stability is a fundamental concept in signal processing, often assessed using convolution. For a system to be considered bounded-input bounded-output (BIBO) stable, any bounded input signal must produce a bounded output signal. A bounded input signal is one where the modulus does not exceed a certain constant at any point in time.
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
321
Linear time-invariant Systems
202
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...
202
Block Diagram Reduction
149
The process of deriving the transfer function of a control system often involves reducing its block diagram to a single block. This simplification can be achieved through a series of strategic operations, including relocating branch points and comparators. These operations preserve the overall function of the system while allowing for easier manipulation and combination of blocks.
The first step in this process is the identification and relocation of a branch point. A branch point, where a...
The first step in this process is the identification and relocation of a branch point. A branch point, where a...
149
State Space to Transfer Function
165
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:
165


