Results 61 to 70 of about 4,457,973 (186)

Multiframe Target Localization With Strapdown Seeker Based on Self‐Adaptive L‐SHADE

open access: yesInternational Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.
Strapdown seekers are increasingly used in the terminal guidance for the advantages of small size and low cost. However, due to the coupling of the seeker with the missile and its limited field of view, there is a risk of losing the target. This paper proposes a multiframe fusion target localization method for missiles with strapdown seekers, which can
Jiayang Wu   +5 more
wiley   +1 more source

Helicopter Test of a Strapdown Airborne Gravimetry System

open access: yesSensors, 2018
Airborne gravimetry from a helicopter has been a feasible tool since the 1990s, with gravimeters mounted on a gyro-stabilised platform. In contrast to fixed-wing aircrafts, the helicopter allows for a higher spatial resolution, since it can move slower ...
Tim Enzlberger Jensen, Rene Forsberg
doaj   +1 more source

Attitude Angle Compensation for a Synchronous Acquisition Method Based on an MEMS Sensor

open access: yesSensors, 2019
As a new type of micro-electro-mechanical systems (MEMS) inertial sensor, the Quartz Vibrating Beam Accelerometer (QVBA) is widely used in intelligent sweeping robots, small aircraft, navigation systems, etc.
Huanhuan Tian   +5 more
doaj   +1 more source

SmokeNav: Millimeter‐Wave‐Radar/Inertial Measurement Unit Integrated Positioning and Semantic Mapping in Visually Degraded Environments for First Responders

open access: yesAdvanced Intelligent Systems, Volume 6, Issue 12, December 2024.
In this work, SmokeNav, a system that fuses inertial sensor and millimeter‐wave radar for accurate user localization and metric map reconstruction in visually degraded environments, is presented. Using a foot‐mounted inertial sensor with human motion constraints, SmokeNav leverages inertial positioning to construct occupancy maps from radar data.
Changhao Chen   +6 more
wiley   +1 more source

Robust adaptive non‐linear alignment algorithm for SINS/DVL integrated navigation system based on variational Bayesian

open access: yesIET Science, Measurement &Technology, Volume 18, Issue 9, Page 524-539, November 2024.
The proposed algorithm VBRAUKF is useful for dynamic alignment of SINS/DVL. According to the inaccurate modelling of the observation model, an adaptive estimation strategy for the measurement noise covariance is designed by Variational Bayesian algorithm based on unscented Kalman filter algorithm to solve dynamic attitude alignment for SINS/DVL ...
Bing Zhu   +5 more
wiley   +1 more source

Data‐driven observability analysis and enhancement for radome slope estimation with constraints on impact angle and terminal acceleration

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1887-1907, October 2024.
The authors propose a data‐driven observability analysis method for radome aberration estimation systems with LOS‐angle‐only measurements, and an observability‐enhanced guidance law that considers both impact angle and terminal acceleration constraints.
Bingyu Jin, Kelin Lu, Yuping Lu
wiley   +1 more source

Improved Pedestrian Location Method for the Indoor Environment Based on MIMU and sEMG Sensors

open access: yesJournal of Sensors, Volume 2024, Issue 1, 2024.
In order to guarantee the pedestrian location accuracy for the indoor environment, an improved pedestrian location method based on the improved Mahony complementary filter algorithm is proposed by the data fusion of microinertial measurement unit (MIMU) and sEMG sensors, which are installed on the lower limbs.
Xu Ling   +3 more
wiley   +1 more source

Single axis reference strapdown inertial measuring unit [PDF]

open access: yes, 1971
Design and tests of single-axis reference strapdown inertial measuring ...
Lee, C. E.
core  

Estimation of temporal parameters during sprint running using a trunk-mounted inertial measurement unit [PDF]

open access: yes, 2012
This research was supported by a grant of the Universit a Italo-Francese (Call Vinci) awarded to E. Bergamini.The purpose of this study was to identify consistent features in the signals supplied by a single inertial measurement unit (IMU), or thereof ...
PICERNO, Pietro   +5 more
core   +1 more source

Optimal Sampling Frequency and Bias Error Modelling for Foot-Mounted IMUs [PDF]

open access: yes, 2013
The use of foot-mounted inertial measurement units (IMUs) has shown promising results in providing accurate human odometry as a component of accurate indoor pedestrian navigation.
Munoz Diaz, Estefania   +3 more
core  

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