This paper presents a software solution for multiple sensor integration for autonomous vehicle navigation. The system unique features and shortcomings are taken into account to implement the fusion of an inertial navigation system (INS) with measurements from global navigation satellite system (GNSS), altimeter, odometer and magnetometer employing a complementary extended Kalman filter to produ...

The increasing recent advances in hardware technology for mobile technology and sensor processing has resulted in greater availability of sensor generated data. For example, mobile devices contain many sensors such as GPS, accelerometers, gyroscope, magnetometer, thermometer, etc., which produce large volumes of data over time. This has lead to a need for principled methods for efficient sensor...

Clandestine mine reconnaissance is the Navy's highest MCM priority. During the 1980's, the Superconducting Gradiometer/Magnetometer Sensor (SGMS) was demonstrated in the Magnetic and Acoustic Detection of Mines (MADOM) ATD to provide effective detection/classification capabilities, especially against buried mines, and to reduce significantly acoustic false alarms arising from bottom clutter [1]...

This article presents the development of an image-based sun position sensor and the algorithm for how to aim at the Sun precisely by using image processing. Four-quadrant light sensors and bar-shadow photo sensors were used to detect the Sun's position in the past years. Nevertheless, neither of them can maintain high accuracy under low irradiation conditions. Using the image-based Sun position...

A sensor system for an underwater vehicle is described. The vehicle is equipped with inclinometers, gyroscopes, a magnetometer, a pressure gauge, and a sonar system. The sensor models used for the inclinometers and gyroscopes are straightforward; however, the magnetometer can be corrupted by variations in the earth’s field caused by: external objects and internal magnetic fields. We show how to...

Multichannel superconducting quantum interference device (SQUID) systems based on double relaxation oscillation SQUIDs (DROS) were developed for measuring magnetocardiography (MCG) and magnetoencephalography (MEG) signals. Since DROS provides large fluxto-voltage transfer coefficients, about 10 times larger than the DC SQUIDs, direct readout of the SQUID output was possible using compact roomte...

In this article mathematical and computer models of sun sensor and magnetic sensor are considered that can be used for determination of small satellite attitude. In particular, the mathematical models of slit sun sensor and flux-gate magnetic sensor are given.