Ultra-Wideband Technology
Overview
Ultra-Wideband (UWB) is the advanced radio technology powering Locus RTLS systems. This guide explains UWB fundamentals, advantages, and implementation in high-precision indoor positioning.
UWB Fundamentals
Technical Characteristics
| Parameter | Specification | Impact |
|---|
| Bandwidth | >500 MHz | High resolution |
| Pulse Duration | 2ns typical | Precise timing |
| Center Frequency | 3.1-10.6 GHz | Multiple channels |
| Power Density | -41.3 dBm/MHz | Low interference |
| PRF | 16-64 MHz | Configurable |
Signal Characteristics
Positioning Methods
Time Difference of Arrival (TDoA)
Two-Way Ranging (TWR)
Accuracy Factors
| Factor | Impact | Mitigation |
|---|
| Multipath | Signal reflections | Advanced algorithms |
| Clock drift | Timing errors | Synchronization |
| Signal strength | Range limitation | Power management |
| Interference | Position error | Channel selection |
| Geometry | DOP effects | Anchor placement |
Environmental Considerations
- Line of sight requirements
- RF absorption/reflection
- Material penetration
- Temperature effects
- Humidity impact
Technology Comparison
Positioning Technologies
| Technology | Accuracy | Range | Power | Multipath | Cost |
|---|
| UWB | 10-30cm | 50-100m | Medium | Excellent | Higher |
| Bluetooth | 1-3m | 10-30m | Low | Poor | Low |
| WiFi | 3-15m | 50-100m | High | Poor | Medium |
| RFID | Proximity | 1-10m | Very Low | Poor | Medium |
| GPS | 5-10m | Global | High | N/A | Low |
Key Advantages
IEEE Standards Compliance
IEEE 802.15.4z
- Enhanced ranging
- Security features
- Channel management
- Power control
- Interference mitigation
Implementation
| Feature | Specification | Benefit |
|---|
| PHY | HRP/LRP UWB | Flexibility |
| Ranging | Enhanced TWR/TDoA | Accuracy |
| Security | Layer 2 | Protection |
| Channels | 3.1-10.6 GHz | Coverage |
| Data Rate | Up to 27 Mbps | Capability |
UWB system performance depends on proper deployment planning, including anchor placement, channel selection, and environmental considerations.
Contact Locus support for detailed UWB implementation guidelines and optimization recommendations for your specific environment.
