1. Radar System Design and Analysis;Hovanessian,1984
2. K. Audeanert, H. Peremans, Y. Kawahar, J. van Campenhout, Accurate ranging of multiple objects using ultrasonic sensors, Proceedings of IEEE International Conference on Robotics and Automation, Nice, 1992, pp. 1773–1738.
3. H. Hamadene, E. Colle, Optimal estimation of the range for MRs using ultrasonic sensors, SICICA ’97, 1997, pp. 141–146.
4. Mobile robot sonar for target localisation and classification;Kleeman;The International Journal of Robotics Research,1995
5. J. Klaus-Werner, B. Markus, M. Markus, Using pseudo-random codes for mobile robot sonar sensing, Third IFAC Symposium on Intelligent Autonomous Vehicles (IAV ’98), Madrid, 1998, pp. 231–236.