Αποτελέσματα Αναζήτησης
1 Δεκ 2016 · In simpler GPS receivers, the estimation of user’s position and velocity is based on pseudoranges only, whereas in more advanced ones delta-ranges are also applied. The paper describes both...
In simpler GPS receivers, the estimation of user’s position and velocity is based on pseudoranges only, whereas in more advanced ones delta-ranges are also applied.
19 Δεκ 2023 · Two approaches are mainly used to obtain velocity based on GNSS measurements, i.e., Doppler observations and carrier phases differenced in time (that is, TDCP). In a benign environment, Doppler-based velocity can be estimated accurately to within a few cm/s, while TDCP-based velocity can be estimated accurately to within a few mm/s.
4 Νοε 2022 · To evaluate the benefits that TDCP can provide, especially in terms of the smartphone chip, these two approaches to velocity determination are compared using three different devices: a Novatel geodetic receiver, a u-blox multi-frequency receiver, and a Xiaomi Mi8 smartphone.
21 Απρ 2021 · Here, by an appropriate modelling of receiver motion, sequential EKF, correct determination of process noise covariance matrix and proper selection of variance estimation method, a method is proposed to increase the accuracy of single-frequency GPS receiver positioning at high speeds.
19 Σεπ 2022 · Highly accurate and reliable velocity measurements can be obtained by exploiting the raw Doppler, carrier phase, and pseudorange measurements with a GNSS receiver. There are several approaches to GNSS-based velocity determination.
velocity estimation techniques imple-mented for single-frequency receivers, with details on achievable accuracies. We will also discuss TDCP methods along with their associated benefits. Obtaining Velocity. Receiver instantaneous velocity . is defined as the time-derivative of user position . If and are the receiver positions at two epochs ...
