Lars Reichardt

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We present a software radio-based testbed for live testing of OFDM radar algorithms. Unlike previous testing setups, the hardware used (Universal Software Radio Peripherals) was low-cost and low-power, thus making the measurement setup both flexible and easy to use. The hardware can be easily battery powered. Both stationary and mobile measurements in(More)
This paper evaluates single and multiple antenna systems in realistic car-to-car communication channels. With a three-dimensional ray-tracing simulation tool the narrow-band channel characteristics are determined for various antenna positions and numbers of antennas. The results clearly show the advantage of multiple antenna systems. Suitable antenna(More)
Ultra-wideband (UWB) radio sensor networks promise interesting perspectives for emitter and object position localization, object identification and imaging of environments in short range scenarios. Their fundamental advantage comes from the huge bandwidth which could be up to several GHz depending on the national regulation rules. Consequently, UWB(More)
Mobile communications is usually understood as phoning while moving, with the link via a base station. The success of mobile communications stimulated the idea of direct mobile to mobile communications in and with vehicles. In the last few years regulation authorities made the necessary spectrum in the 5.9 GHz frequency range available and set up(More)
This systematic review summarizes the psychometric properties of goal-setting instruments that are applied within geriatric rehabilitation. PubMed Medline and Embase were systematically searched for eligible articles. Studies were included if they were conducted in a somatic or neurological rehabilitation setting, included patients aged ≥55 years and(More)