Abstract: Embodiments are directed to determining at least one orientation parameter of a six-way blade coupled to a vehicle via an attachment member. The at least one orientation parameter is determined based on a pure lifting movement of the blade and the attachment member. Rotation rate measurements of the attachment member and/or the blade are taken during the pure lifting movement and used to derive orientation parameters such as the swing angle of the blade and the relative heading between the blade and the attachment member.

Abstract: Embodiments are directed to calibration of a blade and/or attachment member coupled to the body of a vehicle, such as a bulldozer. By analyzing attitude measurements of the blade and attachment member corresponding to directed movements of the vehicle, calibration parameters such as the offset angles of the blade (and attachment member) relative to the body can be determined. Other calibration variables, such as the maximum swing angles of the blade relative to the attachment member, can also be determined.

Abstract: A post-processed GNSS solution from raw GNSS data acquired from a vehicle and optionally other sources is dynamically calculated at the epoch level without using a Kalman filter. Instead, a plurality of GNSS processing methods is applied to each epoch in either the forward or backward direction and the most accurate solution for each epoch of the forward generated solution and backward generated solution is combined. The combined post-processed GNSS solution is determined based on which of the GNSS processing methods were used to generate an epoch of the forward solution and a corresponding epoch of the backward solution.

Abstract: Systems and methods for static session multipath detection are described herein. In certain embodiments, a system includes one or more global navigation satellite system (GNSS) receivers configured to receive GNSS signals from multiple GNSS satellites, wherein the GNSS receiver provides GNSS measurements. The system also includes one or more processors configured to receive the GNSS measurements.

Abstract: Systems and methods for GNSS ambiguity resolution are described herein. In some examples, the systems and methods utilize multiple search engines in parallel to validate potential integer candidates for ambiguity resolution using adaptively adjusted residual thresholds.

Abstract: Systems and methods for GNSS ambiguity resolution are described herein. In some examples, the systems and methods utilize multiple search engines in parallel to validate potential integer candidates for ambiguity resolution using adaptively adjusted residual thresholds.