驾驶会飞的汽车是不是很复杂呢？美国正在研制一种高科技的飞行汽车。这种汽车由计算机和卫星技术控制飞行，驾驶员只需按照汽车挡 风玻璃上显示的路线图飞行就行了，虽然是计算机自动控制的，但它不 会偏离既定的航线。也许你不会想到，这种新型飞行汽车釆用了美国军用环球定位卫星系统。  

 环球定位卫星系统由17颗卫星组成，如果汽车上配备有卫星接 收机的话，卫星定位系统能准确地确定汽车的位置。它的定位方法是这 样的：正在空中飞行的汽车接收到卫星的信号后，与附近某个固定地面站接收到的卫星信号加以比较，利用声波频率的变化，来确定汽车的具 体方位，其精确度可在1米到2米的范围内。

   要是你上班的地方离住地比较远的话，这种陆空两用汽车是最适合的交通工具了。当地面公路上车辆较少时，它像普通汽车一样可以高速 行驶，当进入拥堵的城市道路时，又可立即离地升空，在空中飞行，真 可说是一种既能跑又能飞的全能型汽车。可惜，这种汽车还没有普及开来，而且自身还有一些缺陷有待改进。

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英文版

English version
Is it complicated to drive a flying car? The United States is developing a high-tech flying car. This kind of car is controlled by computer and satellite technology. The driver only needs to fly according to the route map displayed on the windshield of the car. Although it is automatically controlled by computer, it will not deviate from the established route. Perhaps you won't think that this new flying car uses the U.S. military Global Positioning Satellite System.

The Global Positioning Satellite System (GPS) consists of 17 satellites. If the vehicle is equipped with a satellite receiver, the GPS system can accurately determine the position of the vehicle. Its positioning method is as follows: after receiving the satellite signal, the vehicle flying in the air compares it with the satellite signal received by a nearby fixed ground station, and uses the change of acoustic frequency to determine the specific orientation of the vehicle. Its accuracy can be within the range of 1 m to 2 m.

If you work far from your place of residence, this kind of land-air dual-purpose car is the most suitable means of transportation. When there are fewer vehicles on the ground road, it can run at high speed like an ordinary car. When entering a congested urban road, it can immediately lift off from the ground and fly in the air. It is a kind of omnipotent car that can run and fly. Unfortunately, this kind of car has not been popularized, and there are still some defects to be improved.（文编译/飞行汽车 www.feiauto.com）

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