搜了下还挺有意思的：
In GPS technology, the term "CoCom Limits" also refers to a limit placed on GPS receivers that limits functionality when the device calculates that it is moving faster than 1,000 knots (1,900 km/h; 1,200 mph) and/or at an altitude higher than 18,000 m (59,000 ft).[4] This was intended to prevent the use of GPS in intercontinental ballistic missile-like applications.

Some manufacturers apply this limit only when both speed and altitude limits are reached, while other manufacturers disable tracking when either limit is reached. In the latter case, this causes some devices to refuse to operate in very-high-altitude balloons.

【 在 bigold2 的大作中提到: 】
: 或者说gnss系统对高度和速度有什么限制？
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FROM 103.102.203.204

这是来自gps系统的应用限制。从原理或者硬件能力角度来说呢？


【 在 PaoloMaldini 的大作中提到: 】
: 搜了下还挺有意思的：
: In GPS technology, the term "CoCom Limits" also refers to a limit placed on GPS receivers that limits functionality when the device calculates that it is moving faster than 1,000 knots (1,900 km/h; 1,200 mph) and/or at an altitude higher than 18,000 m (59
: ,000 ft).[4] This was intended to prevent the use of GPS in intercontinental ballistic missile-like applications.
: ...................
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FROM 39.149.15.*

原理上不限制航天器使用GNSS定位，实际上现在很多卫星已经在使用GNSS了

实现上，作为半个外行能想到的点有：

一方面是解算速度是否够快，每秒钟可以进行多少次定位解算，解算速度太慢或者实时性不好那应用意义就小了

二是卡尔曼跟踪器的参数需要针对超高速的场景进行过调整

还有接收机对多普勒频移的校正范围是不是足够宽可能也需要算一下

航天器运行的轨道也要有个预设范围，GNSS解算出来的定位结果是一对，超出GNSS卫星轨道的那个值是被丢弃的，因为通常是假设定位设备是在地球表面与GNSS卫星轨道之间的，如果是超高轨道的航天器，那就应该取另一个定位结果


【 在 upndown 的大作中提到: 】
: 这是来自gps系统的应用限制。从原理或者硬件能力角度来说呢？
:
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FROM 111.198.57.*