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自1990年利用GPS确定车辆位置的导航系统在日本问世以来,目前正迅速成为消费者真正愿意购买的产品。驱车穿行于日本城市和无名街道上的人们不久可用GPS卫导仪为自己引路。预料1994年的销售量增加一倍,达到30万套,随着产品价格的降低和功能的增加,到1995年,日本的汽车GPS系统的销量将达到50万套。到1998年将达到100万套。GPS导航系统对来自24颗全球定位系统卫星的信号进行处理,判断汽车所在位置,其误差不超过30米,汽车的位置显示于车内的液晶屏幕上。
Navigation systems that have been using GPS to determine vehicle position since 1990 have been rapidly becoming the product consumers are really willing to buy in Japan. People driving through Japan’s cities and unnamed streets will soon be able to use GPS gurus to guide themselves. It is expected that the sales volume in 1994 will double to 300,000 units. With the decrease of product prices and the increase of functions, by 1995, the sales volume of Japan’s car GPS system will reach 500,000 sets. By 1998, it will reach 1 million sets. GPS navigation system from 24 GPS satellite signal processing, determine the location of the car, the error does not exceed 30 meters, the car’s location is displayed on the car’s LCD screen.