Demo - Indoor Positioning via 24GHz Radio Frequency.

Multi-targets indoor positioning is of great importance to many real applications, and attracts many efforts commit on this issue. Most passive indoor positioning systems rely on commercial off-the-shelf products to build inexpensive systems, and already have a relative high accuracy. In order to make it pragmatic to large space indoor positioning applications (over 10 km2 area), those existing ways may face lack of effective transmission distance, since most devices are short of transmission power. We design and implement a 24GHz FMCW (Frequency-Modulated Continuous Wave) radar prototype to support multi-targets positioning, and can be applied in many scenarios. According to different aims of each scenario, the prototype can auto adjust different signal processing algorithms to guarantee the detection accuracy. This radar prototype is a K band radar system operating on 24GHz using FMCW scheme. Through the built-in ARM processor, it can detect moving targets in cm level with high accuracy and extremely low false alarms.