The invention belongs to the field of
satellite navigation, and particularly relates to a method for determining track and a
clock error of a navigation
satellite. According to the method, the
clock error of the
satellite is expressed by a multi-item model, data observed at different times within the same time window is corresponding to a joint
clock error parameter, so that inter-satellite one-way pseudo-range
observation data and
observation data of a ground monitoring state can be adjusted to determine the track and the
clock error of the navigation satellite by employing a known method. Compared with a known method only employing ground monitoring
station data to determine the track and
clock error of the navigation satellite, the track and
clock error determination accuracy of the navigation satellite can be remarkably improved under the condition of a regional monitoring state; and compared with a known method employing inter-satellite pseudo-range and observation quantity to determine an
orbit and a method employing pseudo-range difference observation quantity to perform
time synchronization, original one-way pseudo-range
observation data is directly employed, epoch
naturalization is not needed to be performed on inter-satellite pseudo-range observation data and so-called pseudo-range and / or pseudo-range difference observation quantity is not needed to be calculated, higher data
utilization rate is achieved, and self-consistent track and clock error result can be obtained. By the method, the time
delay deviation of inter-satellite link transceiving equipment relativeto hardware of navigation
signal equipment also can be estimated.