An advanced GNSS code multipath detection and estimation algorithm. SOKHANDAN N,CURRAN J T,BROUMANDAN A,et al. GPS Solutions . 2016SOKHANDAN N, CURRAN J T, BROUMANDAN A, et al. An advanced GNSS code multipath detection and estimation algorithm[J]. GPS Solutions, 2016, 20(4):627-640....
多路径和非视距信号(multipath/NLOS):0~100米。 单点定位(Single Point Positioning): 单点定位是基于接收机收到的卫星伪距(距离)信息,计算接收机的绝对位置。在空旷区域下,精度可达3~10米。 差分GPS定位:当前流行的差分GPS定位主要原理是通过接收基站的数据,对伪距进行差分,可有效的消除电离层误差,对流层误差,卫...
This FDsmooth frequency domain code multipath mitigation technique for real-time application. Firstly, a multipath spectral estimation technique is used to provide multipath frequency spectrum analysis, which was used to bound the freque... Chris Gregory Bartone,Y Zhang 被引量: 2发表: 2005年 加载...
An analytical expression of the code tracking error is suggested for EMLP discriminator, and it can be used to assess the effect of multipath and CW interference. The derived expression shows that the combined effects include three components: multipath component; CW interference component and the ...
iare code biases for receiver and satellite.εPis the un-modeled errors, mainly containing the multipath and random noise. There are several methods to handle these items. In GICI, we implement 12 formula tions, which are thepermutationsof 2 frame definitions, 3 GNSS linear combination types, ...
多径误差(Multipath error) 由两条以上传播路径的无线电信号间干扰而引起的定位误差。 观测时段(Observing session) 利用两个以上的接收机同时收集GNSS数据的时间段。 伪距(Pseudo range) 将接收机中GPS复制码对准所接收的GPS码所需要的时间偏移并乘以光速化算的距离。此时间偏移是信号接收时刻(接收机时间系列)和信号...
Multipath — The GPS receiver detects signals from the satellite, but with one or more reflections. Visible — The GPS receiver detects a signal, and has direct line-of-sight (LOS) with the satellite. Note that the receiver can currently detect multiple signals from the same satellite. Resi...
RINGO calculates code multipath and signal noise level as a standard deviation of the multipath (MP) linear combinations (Estey and Meertens1999), and it detects cycle slips in the MP linear combination, Melbourne–Wübbena (MW) linear combination (Wüebbena1985; Melbourne1985), and ionosphere lin...
Principle of code multipath mitigation based on the steepest descent Non-Line-of-Sight (NLOS) is the phenomenon in which a signal arrives at a receiver through multiple reflection paths. Due to the reflection, the NLOS signal has two properties. One is that the NLOS signal always arrives at ...
Keywords:GPSReceiver;multipath;DLL;PLL 0引言 卫星时钟误差、接收机时钟钟差、电离层延迟误差、对流层延迟误差、热噪声、多径误 差等是影响GPS定位精度的主要因素。这些都会通过影响伪距计算来直接影响到GPS接收 机的定位效果,有的误差可以消除,例如多模星座,差分定位等,但是热噪声和多径误差不 能消除,热噪声引起的误...