The current GPS signal structure and signal power levels are barely sufficient for indoor applications. Recent developments in high sensitivity receiver technology are promising for indoor positioning inside light structures such as wooden frame houses but generally not for concrete high rise buildings. Errors due to multipath and noise associated with weak indoor signals limit the accuracy and...

This paper uses MEMS circuit-level simulation to correlate gyro performance measures such as zero rate output (ZRO), linear acceleration sensitivity (Sa) and cross-axis sensitivity (Sca) to geometrical asymmetries. Elastic and electrostatic asymmetries in the gyroscope may arise due to device-level manufacturing variations in beam width, comb gap and metal mask misalignment in the CMOS-MEMS pro...

We consider the problem of reconstructing a 3-D scene from a moving camera with high frame rate using the affine projection model. This problem is traditionally known as Affine Structure from Motion (Affine SfM), and can be solved using an elegant low-rank factorization formulation. In this paper, we assume that an accelerometer and gyro are rigidly mounted with the camera, so that synchronized...

In this paper we present our approach and experiments with equipping a mobile robot with a novel MEMS angular rate sensor (gyroscope) that was originally developed for automotive usage and is therefore mass produced and very low priced. By fusing its measurement results with data obtained from other cheap sources, it is feasible to use this sensor for continuous tracking although it is still af...

This paper proposes a parameter estimation method for improving the navigation accuracy of an unmanned underwater vehicle, which is equipped with a doppler, a gyro, a depth sensor and a GPS, using an Unscented Kalman Filter (UKF). The error sources are analyzed, and then a kinematical model is constructed accordingly. Using an UKF, the doppler scaling factor and the rotational alignment offset ...

Respiratory rate is a fundamental vital sign that sensitive to different pathological conditions including heart, lung, emotional stress, the influence of body temperature and activity fatigue. The respiratory in humans measured by counting number breaths for one minute monitoring times chest rises falls during inhale exhale process. Various methods measuring are commonly used pneumograph, impe...

A method for gait analysis using wearable acceleration sensors and gyro sensors is proposed in this work. The volunteers wore sensor units that included a tri-axis acceleration sensor and three single axis gyro sensors. The angular velocity data measured by the gyro sensors were used to estimate the translational acceleration in the gait analysis. The translational acceleration was then subtrac...

The Gyro-TWT is a promising candidate for applications requiring high power mm wave amplifiers with large bandwidth. Single stage devices are limited in their operation by backward wave instabilities. Multistage gyroTWT’s may be used to reduce interaction lengths of each section below minimum startup requirements for the parasitic backward wave. Such a two stage device is comprised of an input ...