Abstract: Methods and apparatus are provided for calibrating and initializing/aligning an attitude and heading reference system of a crane jib. Magnetometer measurements are generated using a magnetometer that is attached to the crane jib, while crane jib maneuvers are performed including crane jib slewing. The magnetometer measurements are supplied to a processor that is configured to generate magnetometer calibration parameters using the magnetometer measurements and to initialize and align a plurality of filters.

Abstract: Methods and apparatus are provided for determining the attitude and heading angle of a crane jib. Crane jib angular velocity, crane jib roll angle, crane jib pitch angle, crane jib specific force, and magnetic field in the local operating environment of the crane jib are all sensed and supplied to a processor. All of these measurements are processed, in a processor, to estimate the attitude and heading angle of the crane jib.

Abstract: Methods and apparatus are provided for calibrating and initializing/aligning an attitude and heading reference system of a crane jib. Magnetometer measurements are generated using a magnetometer that is attached to the crane jib, while crane jib maneuvers are performed including crane jib slewing. The magnetometer measurements are supplied to a processor that is configured to generate magnetometer calibration parameters using the magnetometer measurements and to initialize and align a plurality of filters.

Abstract: Methods and apparatus are provided for determining the attitude and heading angle of a crane jib. Crane jib angular velocity, crane jib roll angle, crane jib pitch angle, crane jib specific force, and magnetic field in the local operating environment of the crane jib are all sensed and supplied to a processor. All of these measurements are processed, in a processor, to estimate the attitude and heading angle of the crane jib.

Abstract: Systems and methods for forming an electronic assembly are provided. A first inertial sensor having a first sense axis is attached to a bracket. A second inertial sensor having a second sense axis is attached to the bracket such that the second sense axis is substantially orthogonal to the first sense axis. The bracket is attached to a circuit board having at least one microelectronic device mounted thereto.

Abstract: A method and apparatus for calculating corrections to a navigation solution based on differential GPS data includes receiving GPS ephemeris from at least three GPS satellites. A PVT solution is resolved from the GPS ephemeris. The PVT solution includes a Circular Error Probable (CEP). Differential GPS data for calculating the corrections to the PVT solution is received. A corrected PVT solution is then based upon the differential GPS data. The corrected PVT solution is compared to an area defined by the CEP. Where the corrected PVT solution is not within the area, the corrected PVT solution is rejected in favor of the PVT solution for determining an accurate navigational solution.

Abstract: A method and apparatus for calculating corrections to a navigation solution based on differential GPS data includes receiving GPS ephemeris from at least three GPS satellites. A PVT solution is resolved from the GPS ephemeris. The PVT solution includes a Circular Error Probable (CEP). Differential GPS data for calculating the corrections to the PVT solution is received. A corrected PVT solution is then based upon the differential GPS data. The corrected PVT solution is compared to an area defined by the CEP. Where the corrected PVT solution is not within the area, the corrected PVT solution is rejected in favor of the PVT solution for determining an accurate navigational solution.

Abstract: Systems and methods for forming an electronic assembly are provided. A first inertial sensor having a first sense axis is attached to a bracket. A second inertial sensor having a second sense axis is attached to the bracket such that the second sense axis is substantially orthogonal to the first sense axis. The bracket is attached to a circuit board having at least one microelectronic device mounted thereto.

Abstract: Methods and systems for providing an estimate of effectiveness of a selected weapon against a selected target prior to release of the weapon are described. One described method comprises receiving a position uncertainty for a weapon platform, receiving a position uncertainty for a selected target, and determining an ability of the selected weapon to navigate to the selected target. An estimated effectiveness of the selected weapon is determined utilizing one or more of the weapon platform position uncertainty, the target position uncertainty, the navigation capability of the selected weapon, and a kill radius for the selected weapon.