scholarly journals Structure Design and Calibration of INS for Distributed POS Technology

2021 ◽  
Vol 233 ◽  
pp. 04042
Author(s):  
Zhen Ma ◽  
Xiyuan Chen
Keyword(s):  
Structure Design ◽  
Observation System ◽  
Fiber Optic Gyroscope ◽  
Dual Mode ◽  
Calibration Experiment ◽  
Combination System ◽  
Orientation System ◽  
The Status ◽  
Earth Observation System ◽  
Working Principle

With the development of science and technology, position and orientation system (POS) technology has become an important tool for airborne earth observation system, and plays an important role in both military and civil fields. The calibration of the device directly affects the accuracy of inertial navigation. Therefore, the paper designs a compact dual mode navigation system with high and low precision, which can be used in distributed POS system. Firstly, the status of IMU calibration technology is introduced. Then it introduces the working principle, structure design and layout design of fiber optic gyroscope (FOG) combination. Finally, the calibration experiment verifies that the designed FOG combination system meets the performance index.

Design of Dual Mode AVA with Enhanced Radiation Characteristics

2021 ◽  
Author(s):  
Sathishkumar N ◽  
Nandalal V ◽  
Rajesh Natarajan
Keyword(s):  
Dual Mode ◽  
Radiation Characteristics ◽  
Pin Diodes ◽  
Full Wave ◽  
Working Principle ◽  
Vivaldi Antenna ◽  
Peak Gain

Abstract Dual mode antipodal Vivaldi antenna (AVA) with narrowband to wideband switching is proposed in this work. The antenna has the footprint of 60 mm x 40 mm x 1.6 mm and FR-4 substrate used for fabrication. The antenna exhibits 8.3 GHz bandwidth in wideband mode with a peak gain of 6.9 dBi and 1.6 GHz bandwidth in narrowband mode with a peak gain of 7 dBi. The simulations are performed using CST full wave simulator and the results are compared with the reference antenna of the same dimensions. PIN diodes are implemented to achieve the frequency switching. The working principle of the antenna is explained through simulation and verified through measurements.

Target Evaluation and Correlation Method (TECM) as an Assessment Approach to Global Earth Observation System of Systems (GEOSS)

2011 ◽  
Vol 2 (1) ◽  
pp. 36-62 ◽  
Author(s):  
Samuel Epelbaum ◽  
Mo Mansouri ◽  
Alex Gorod ◽  
Brian Sauser ◽  
Alexander Fridman
Keyword(s):  
Large Scale ◽  
Correlation Method ◽  
System Of Systems ◽  
Earth Observation ◽  
Observation System ◽  
Societal Benefit ◽  
Large Scale Network ◽  
Assessment Approach ◽  
Earth Observation System ◽  
Scale Network

The Global Earth Observation System of Systems (GEOSS) is a ten-year-long Implementation Plan, which commenced in 2005 as a group effort by numerous participating countries and organizations to build a large-scale network to effectively monitor and respond to the increasingly complex web of global environmental and socio-economic issues. This paper proposes the Target Evaluation and Correlation Method (TECM) as an assessment approach to GEOSS with its 241 Targets across the nine “Societal Benefit Areas,” along with a method to identify Target Correlation Levels (TCL). Applying TECM allows concluding whether the chosen targets within the GEOSS fall into the domain of System of Systems (SoS), while using TCLs delineates the extent of inclusion for these targets in the form of a system. Furthermore, this research investigates the possible ways of raising the correlation levels of the targets for the cases in which TCLs are low.

Structure Design of Laser/Visible Dual-mode Seeker

2014 ◽  
Vol 35 (11) ◽  
pp. 1382-1387
Author(s):  
韩冰 HAN Bing ◽  
武雁熊 WU Yan-xiong ◽  
陈晓苹 CHEN Xiao-ping ◽  
谷立山 GU Li-shan ◽  
马洪涛 MA Hong-tao
Keyword(s):  
Structure Design ◽  
Dual Mode
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