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UWB Positioning Techniques for Signal Separation and High Capacity Radio Communication

Explore classical radio signal separation for ideal bandwidth occupancy, including frequency and time division methods. Discover UWB benefits such as high throughput, precise location capability, low power consumption, and GPS-free positioning techniques.

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UWB Positioning Techniques for Signal Separation and High Capacity Radio Communication

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  1. UWB, positioning Taekyoung kwon

  2. Classical radio signal • Separation of signals • Conventional signals discern one from the other by different frequency • Ideal: smallest bandwidth occupancy • The best capacity is when each user occupies a smallest sliver of frequency • Sine wave carrier

  3. Separation by frequency

  4. Separation of signals: another look • Signals can be separated in time • Ideal: shortest time duration • Best capacity is when each user occupies the smallest sliver of time • Impulse radio

  5. Separation of signals: time

  6. Data rates vs. range

  7. Current 802.15 activities

  8. Why UWB? • High throughput • Location capability • Theoretically sub-centimeter • Low power • Low cost • Scalable range compared to other PAN technologies

  9. GPS-free positioning • TOA: time of arrival • Distance: time of flight * c • Tri-angulation • 2D: 3 reference points is needed

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