Perhaps this could be seen as a kind of false or pseudo market integration, which is not to deny its historical significance.
也许，这可以视为一种失灵或者假冒的市场整合——它没有否认其历史重要性。
2
Observability analysis shows that the integration system, in which only GPS pseudo range and delta pseudo range are the observable, can not assure favorable observability of the attitude error angles.