Topic
Inertial reference unit
About: Inertial reference unit is a research topic. Over the lifetime, 1306 publications have been published within this topic receiving 22068 citations. The topic is also known as: IRU.
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TL;DR: A processing algorithm based on the Kalman filter is designed and simulated to process the navigation system velocity error, and to estimate and correct tilt and heading errors along with gyro drifts and accelerometer biases.
6 citations
29 May 2017
TL;DR: Data processing algorithms for MEMS based multi-component Inertial Measurement Unit for indoor navigation using truncated pyramid with five inertial sensors mounted on its planes at different angles relative to each other is described.
Abstract: The development of lightweight MEMS sensors makes it possible to use inertial navigation for restoration of pedestrian trajectory. The main drawback of the current generation of MEMS sensors is their high level of noise and the bias instability due to incomplete factory calibration. One way to solve this problem is to create a multi-component Inertial Measurement Unit. This paper describes data processing algorithms for MEMS based multi-component Inertial Measurement Unit for indoor navigation. The module is constructed in the form of a truncated pyramid with five inertial sensors mounted on its planes at different angles relative to each other. The data from each sensor is fused to increase the accuracy of trajectory estimation.
6 citations
TL;DR: In this article, the authors described what gyros and accelerometers are and how they can be used to make various inertial systems, such as gyros, accelerometers, and inertial sensors.
Abstract: This article has described what gyros and accelerometers are and how they can be used to make various inertial systems. Gyros, accelerometers, and inertial systems are used in the military, scientific, automotive, industrial, medical, and consumer fields. With so many different types, grades, manufacturers, and users of inertial sensors and systems, standardization is important. Standards reduce confusion by establishing an accepted way to describe the technology and product. Standards development requires consensus and can lead to interesting stories.
6 citations
01 Jan 2017
6 citations
09 Aug 1993
TL;DR: A trajectory reference system based on the Global Positioning System can be used instead of conventional radars during missile flight tests and is found to provide superior estimates of the IMU errors.
Abstract: A trajectory reference system based on the Global Positioning System (GPS) can be used instead of conventional radars during missile flight tests. The high quality of the GPS-based trajectory reference makes it useful for evaluating the performance of the missiles' Inertial Measurement Units (IMUs). Such a system was installed and flight tested on two recently launched ballistic missiles. The GPS hardware configuration used on these flights is described. A Kalman filter approach is used to estimate individual IMU errors based on the GPS range and delta range data. The ability of the GPS-based system to identify IMU errors is compared to that of radar; GPS is found to provide superior estimates of the IMU errors.
6 citations