Related Experiment Video
Updated: Jul 17, 2025
05:30
Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
Published on: September 8, 2023
602
Optimized Distributed Filtering for Saturated Systems With Amplify-and-Forward Relays Over Sensor Networks: A Dynamic
IEEE Transactions on Neural Networks and Learning Systems
|September 6, 2023
Summary
This study develops a new distributed filtering method using dynamic event-triggered mechanisms for saturated systems with amplify-and-forward relays. The approach optimizes signal transmission and reduces communication load for enhanced filtering performance.
Area of Science:
- Control Systems Engineering
- Signal Processing
- Networked Systems
Background:
- Distributed filtering is crucial for networked systems, but communication constraints and system saturation pose challenges.
- Amplify-and-forward (AF) relays extend signal transmission range but introduce complexities in power management and data integrity.
- Dynamic event-triggered mechanisms (DETM) are essential for reducing communication overhead and preventing data collisions in distributed systems.
Purpose of the Study:
- To address the optimized distributed filtering problem for saturated systems incorporating AF relays.
- To develop a DETM for efficient and reliable data transmission scheduling between sensors and filters.
- To minimize filtering error covariance while managing communication burdens.
Main Methods:
- Utilizing amplify-and-forward (AF) relays to extend signal transmission distances.
- Implementing a dynamic event-triggered mechanism (DETM) to optimize data transmission scheduling.
- Deriving an upper bound matrix (UBM) for filtering error (FE) covariance under variance constraints.
- Constructing an optimal filter gain by minimizing the proposed UBM.
- Evaluating the boundedness of the UBM trace.
Main Results:
- An upper bound matrix (UBM) for filtering error covariance was successfully derived.
- A novel filter gain was constructed by minimizing the UBM, ensuring optimal performance.
- The boundedness of the UBM trace was rigorously evaluated.
- Simulation results validated the effectiveness of the developed distributed recursive filtering scheme.
Conclusions:
- The proposed distributed recursive filtering scheme effectively manages saturated systems with AF relays.
- The DETM significantly alleviates communication burden and prevents data collisions.
- The developed method ensures robust filtering performance in networked systems with transmission constraints.
Related Concept Videos
01:22Amplifying Signals via Enzymatic Cascade
8.5K
When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze...
8.5K
01:20Differential Relays
168
Differential relays are used to protect generators, buses, and transformers by comparing electrical quantities at different points. When a fault occurs, the difference in current between the two points triggers the relay to operate, opening the circuit breaker. Under normal conditions, the current entering (i1) and leaving (i2) a generator are equal. When a fault occurs, however, these currents become unequal, and the difference current flows in the relay operating coil, causing the relay to...
168
01:21Distributed Loads: Problem Solving
668
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
668
01:15Amplifying Signals via Second Messengers
7.0K
Many receptor binding ligands are hydrophilic; they do not cross the cell membrane but bind to cell-surface receptors. Thus, their message must be relayed by second messengers present in the cell cytoplasm. There are several second messenger pathways, each with its own way of relaying information. For example, the G protein-coupled receptors can activate both phosphoinositol and cyclic AMP (cAMP) second messenger pathways. The phosphoinositol pathway is active when the receptor induces...
7.0K
01:25Directional Relays
141
Directional relays, essential for managing unidirectional fault currents, enhance the safety and efficiency of power systems. On power lines equipped with directional relays, faults downstream (to the right) of the current transformer typically cause the fault current to lag the bus voltage by approximately 90 degrees, known as the forward direction. In contrast, upstream (left-side) faults may result in the fault current leading the bus voltage by nearly 90 degrees, termed the reverse...
141
01:25Distribution Reliability and Automation
129
Distribution reliability in electrical power systems is critical for ensuring an uninterrupted power supply to consumers at minimal cost. According to IEEE Standard Terms, reliability is the probability that a device will function without failure over a specified time period or amount of usage. For electric power distribution, this translates to maintaining continuous power supply and addressing customer concerns over power outages. Several indices, as defined by IEEE Standard 1366-2012, are...
129