美国阿梅里根公司使用美国加利福尼亚的国家实验室开发成功小而准确、成本仅需10美元的微功率脉冲雷达,制造出汽车用倒车警报系统。该装置发出的声音会随着车体靠近障碍物而增高音调,当两者距离小至50厘米时,便会发出刺耳的警告信号,以防碰撞。 该倒车警报系统所使用的微功率脉冲雷达,是美国国家实验室麦克尤恩研制的,是核武器研究的副产 American Amerigen company using the United States, California, the national laboratory to develop small but accurate, cost only 10 US dollars of micro-power pulse radar to create a car with reverse alarm system. The sound from the unit raises the pitch as the car approaches the obstacle. When the distance is as small as 50 cm, a harsh warning signal is emitted to prevent collision. The micro-power pulse radar used by this reversing alarm system was developed by McEwan of the U.S. National Laboratory and is a by-product of nuclear weapons research