Abstract: A vehicle self-carried positioning system, carried in a vehicle, includes an inertial measurement unit, a north finder, a velocity producer, a navigation processor, a wireless communication device, and a display device and map database. Output signals of the inertial measurement unit, the velocity producer, and the north finder are processed to obtain highly accurate position measurements of a vehicle on land and in water, and the vehicle position information can be exchanged with other users through the wireless communication device, and the location and surrounding information can be displayed on the display device by accessing a map database with the vehicle position information.

Abstract: An external method for addressing the trainer-unique functions in a flight training system allows a Control Display Navigation Unit (CDNU), loaded with an actual Operational Flight Program (OFP), to function properly in a Flight Simulator environment of a trainer system without sacrificing the trainer-unique functions. A CDNU Trainer Interface Unit (CTIU) is defined to realize the external method. The CTIU is installed between the CDNU and the trainer system. The communication between the CDNU with an OFP and the trainer system is thus controlled by the CTIU. The trainer-unique functions are controlled externally by the CTIU, thus eliminating an OTP in the CDNU. The CTIU connects the CDNU and the trainer system. It communicates with both the trainer system and the CDNU/OFP using two sets of MIL-STD-1553B Buses. To the CDNU/OFP, it acts like the real navigation and communication systems. To the trainer system, it acts like a CDNU OTP.

Abstract: A positioning and proximity warning method for vehicle includes the steps of outputting global positioning system signals to an integrated positioning/ground proximity warning system processor; outputting an inertial navigation solution to an integrated positioning/ground proximity warning processor; measuring air pressure, and computing barometric measurements which is output to the integrated positioning/ground proximity warning processor; measuring time delay between transmission and reception a radio signal from a terrain surface, and computing radio altitude measurement which is output to the integrated positioning/ground proximity warning processor; accessing a terrain database for obtaining current vehicle position and surrounding terrain height data which is output to the integrated positioning/ground proximity warning processor; and receiving the position, velocity and time information or said pseudorange and delta range measurements of said global positioning system, the inertial navigation solution

Abstract: An integrated Global Positioning System (GPS)/Inertial Measurement Unit (IMU) method and MicroSystem is disclosed, wherein data from an IMU, a MEMS IMU preferred, a GPS chipset, and an earth magnetic field detector are mixed in a mixed GPS/IMU/Magnetic Data microprocessor to achieve a low cost, micro size, and low power consumption mixed GPS/IMU/magnetic position, velocity, and attitude solution. Furthermore, to deal with sensitivity of the MEMS inertial sensors to environment temperature, a temperature based scheduler, error estimator, and a current acting error estimator are co-operated to minimize the mismatching between the filter system modules and the actual ones due to change of environment temperature, so that the system of the present invention can provide high performance and stable navigation solution over a wide range of environment temperature.

Abstract: A vehicle self-carried positioning system, carried in a vehicle, includes an inertial measurement unit, a north finder, a velocity producer, a navigation processor, a wireless communication device, and a display device and map database. Output signals of the inertial measurement unit, the velocity producer, and the north finder are processed to obtain highly accurate position measurements of a vehicle on land and in water, and the vehicle position information can be exchanged with other users through the wireless communication device, and the location and surrounding information can be displayed on the display device by accessing a map database with the vehicle position information.

Abstract: A processing method for motion measurement, which is adapted to apply to output signals proportional to rotation and translational motion of a carrier, respectively from rate sensors and acceleration sensors, is more suitable for emerging MEMS rate and acceleration sensors. Compared with a conventional IMU, the processing method utilizes a feedforward open-loop signal processing scheme to obtain highly accurate motion measurements by means of signal digitizing, temperature control and compensation, sensor error and misalignment calibrations, attitude updating, and damping control loops, and dramatically shrinks the size of mechanical and electronic hardware and power consumption, meanwhile, obtains highly accurate motion measurements.

Abstract: A real time simulation method for jamming and anti-jamming evaluation of GPS systems and GPS/IMU integrated systems includes the steps of receiving real time trajectory data from a 6DOF trajectory generator and generating jamming signals, global positioning system simulated measurements, and inertial measurement unit simulated electronic signals which are injected into an on-board integrated global positioning system/inertial measurement unit system. When the on-board integrated global positioning system/inertial measurement unit system is excited in dynamic operation, a performance under various jamming conditions is able to be tested and evaluated as if carrying a real transportation test under a real jamming environment.

Abstract: A system and method for precision operational control of automated machines includes a motion element, an IMU installed at an end effector of the motion element for sensing and providing a motion measurement of the motion element, a central control processor receiving output of the IMU and producing commands, and a motion actuator receiving the commands from the central control processor to control the movement of the end effector of the motion element, so as to enable autonomous/intelligent control of the automated machine's end effector by incorporating the IMU to permit direct servo-control of the end effector's acceleration, velocity, angular rate, and angle—this closed-loop system minimizes effects of such disturbances like mechanical flexing and bending due to loading and nonlinear torques due to hydraulic components.

Abstract: A system and method for precision operational control of automated machines includes a motion element, an IMU (Inital Measuring Unit) installed at an end effector of the motion element for sensing and providing a motion measurement of the motion element, a central control processor receiving output of the IMU and producing commands, and a motion actuator receiving the commands from the central control processor to control the movement of the end effector of the motion element, so as to enable autonomous/intelligent control of the automated machine's end effector by incorporating the IMU to permit direct servo-control of the end effector's acceleration, velocity, angular rate. and angle—this closed-loop system minimizes effects of such disturbances like mechanical flexing and bending due to loading and nonlinear torques due to hydraulic components.

Abstract: A positioning method and system for water and land vehicles is disclosed for highly accurate and self-contained operation. In which, an inertial navigation system (INS) is built on the micro MEMS (MicroElectroMechanicalSystem) IMU that is the core of the position determination system. To compensate the error of the INS, multiple navigation sensors are integrated into the system. The magnetic sensor is used as a magnetic field sensor to measure the heading of the vehicle. The odometer is used to measure the distance when the vehicle is on land. An automated Zero velocity updating method is used to calibrate the ever increasing INS errors. When the vehicle is in the water, a velocimeter is used to measure water speed for the INS aiding.

Abstract: An angular rate amplifier, which is adapted to amplify useful signals, which are proportional to rotation motion of a carrier, and to suppress noise, which is not proportional to rotation motion of a carrier, in output signals from an angular rate producer, including a MEMS (MicroElectronicMechanicalSystem) angular rate sensor. Compared with a conventional amplifiers, a noise shield and a co-resident trans impedance amplifier are utilized to achieve high signal/noise ratio. Furthermore, the angular rate producer and the noise shield and a co-resident trans impedance amplifier are used in a micro inertial measurement unit (IMU) to improve performance of the micro inertial measurement unit to form highly accurate, digital angular increments, velocity increments, position, velocity, attitude, and heading measurements of a carrier under dynamic environments.

Abstract: An acceleration amplifier, which is adapted to amplify useful signals, which are proportional to translation motion of a carrier, and to suppress noise, which is not proportional to translation motion of a carrier, in output signals from an acceleration producer, including a MEMS (MicroElectronicMechanicalSystem) acceleration sensor. Compared with a conventional amplifiers, a signal centering control means are utilized to further maximize the dynamic range of the acceleration measurements and minimize offset of the acceleration measurements from the acceleration producer. Furthermore, the acceleration producer and the amplifier of the present invention are used in a micro inertial measurement unit (IMU) to improve performance of the micro inertial measurement unit to form highly accurate, digital angular increments, velocity increments, position, velocity, attitude, and heading measurements of a carrier under dynamic environments.

Abstract: A micro inertial measurement unit, which is adapted to apply to output signals proportional to rotation and translational motion of a carrier, respectively from angular rate sensors and acceleration sensors, is employed with MEMS rate and acceleration sensors. Compared with a conventional IMU, the processing method utilizes a feedforward open-loop signal processing scheme to obtain highly accurate motion measurements by means of signal digitizing, temperature control and compensation, sensor error and misalignment calibrations, attitude updating, and damping control loops, and dramatically shrinks the size of mechanical and electronic hardware and power consumption, meanwhile, obtains highly accurate motion measurements.

Abstract: A method and system for remote data acquisition and processing, remote device control and configuration, information sharing between multiple devices (instruments and facilities), and remote device maintenance and upgrading. In fact, the networked devices (instruments and facilities) can be turned into nodes of information source in the Internet, and the information accumulated by these devices (instruments and facilities) is accessible to commercial applications via the Internet. Under this innovative structure each device (instrument and facility) supports the unique interface: Java. All functional modules take the form of a Java class, and are highly modularized. By downloading the latest functional module from the manufacturer's web site, the function of a device (instrument and facility) can be easily upgraded or bugs fixed.

Abstract: A positioning system is disclosed for measuring a position of a vehicle on land, air, and space, using measurements from a global positioning system receiver and an inertial measurement unit. In the present invention, an integrated Kalman filter processes the all-available measurements of the global positioning system: pseudorange, delta range, carrier phase, and the solution of an inertial navigation system. The integrated Kalman filter is a multi-mode, robust kalman filter, in which optimal integrated mode is selected based on the measurement availability and filter stability.

Abstract: An improved fully-coupled vehicle positioning method and system with differential GPS can substantially solve the problems encountered in either the global positioning system-only or the inertial navigation system-only, such as loss of global positioning satellite signal, sensitivity to jamming and spoofing, and an inertial solution's drift over time. In the present invention, the velocity and acceleration from an inertial navigation processor of the integrated GPS/INS system are used to aid the code and carrier phase tracking of the global positioning system satellite signals, so as to enhance the performance of the global positioning and inertial integration system, even in heavy jamming and high dynamic environments. To improve the accuracy of the integrated GPS/INS navigation system, phase measurements are used and the idea of the differential GPS is employed. A master-slave relative positioning scheme is invented and is effective for high accuracy formation driving and flight.

Abstract: An improved positioning and data integrating process and system can substantially solve the problems encountered in system integration for personal hand-held applications, air, land, and water vehicles, wherein an integrated global positioning system/inertial measurement unit, enhanced with optional other devices to derive user position, velocity, attitude, and body acceleration and rotation information, and distributes these data to other onboard systems, for example, in case of aircraft application, flight management system, flight control system, automatic dependent surveillance, cockpit display, enhanced ground proximity warning system, weather radar, and satellite communication system.

Abstract: An improved positioning and data integrating process and system can substantially solve the problems encountered in system integration for personal hand-held applications, air, land, and water vehicles, wherein an integrated global positioning system/inertial measurement unit, enhanced with optional other devices to derive user position, velocity, attitude, and body acceleration and rotation information, and distributes these data to other onboard systems, for example, in case of aircraft application, flight management system, flight control system, automatic dependent surveillance, cockpit display, enhanced ground proximity warning system, weather radar, and satellite communication system.

Abstract: A processing method for motion measurement, which is adapted to apply to output signals proportional to rotation and translational motion of a carrier, respectively from rate sensors and acceleration sensors, is more suitable for emerging MEMS rate and acceleration sensors. Compared with a conventional IMU, the processing method utilizes a feedforward open-loop signal processing scheme to obtain highly accurate motion measurements by means of signal digitizing, temperature control and compensation, sensor error and misalignment calibrations, attitude updating, and damping control loops, and dramatically shrinks the size of mechanical and electronic hardware and power consumption, meanwhile, obtains highly accurate motion measurements.

Abstract: A processing method for motion measurement, which is adapted to be applied to output signals proportional to rotation and translational motion of the carrier, respectively from angular rate sensors and acceleration sensors, is more suitable for emerging MEMS (MicroElectronicMechanicalSystem) angular rate and acceleration sensors. Compared with a conventional IMU, the present invention utilizes a feedforward open-loop signal processing scheme to obtain highly accurate motion measurements by means of signal digitizing, temperature control and compensation, sensor error and misalignment calibrations, attitude updating, and damping control loops, and dramatically shrinks the size of mechanical and electronic hardware and power consumption, meanwhile, obtains highly accurate motion measurements.