获取到gps导航卫星数量后能区分国籍，属于北斗、gps、或者格洛纳斯么

GpsStatus gpsStatus = locationMgr.getGpsStatus(null);
//获取卫星颗数的默认最大值
int maxSatellites = gpsStatus.getMaxSatellites();
//创建一个迭代器保存所有卫星
Iterator iters = gpsStatus.getSatellites().iterator();
int count = 0;
while (iters.hasNext() && count <= maxSatellites) {
GpsSatellite s = iters.next();
count++;
}

        那些卫星定位是怎么区分的呢