Technological advances have enabled manufacturing of radar devices small enough to be carried by mobile robots. One of such devices is IGEP Radar Lambda manufactured by a Spanish company ISEE. We have evaluated the prospects of using the Lambda sensor in mobile robotics. The Lambda radar operates on 24 GHz ISM band in FMCW mode. It provides range measurements at ranges 0.9–25 m with beam width 26° and standard error 19 cm.

We have designed an algorithm based on Bayes filter to reconstruct environment maps from radar data. The algorithm has been tested in indoor and outdoor environment and yielded satisfactory results.

The sensor results are promising. The sensor provides false measurements under certain conditions as of now, but we believe that substantial improvements can be achieved by better data processing and sensor utilization.