Improved Attitude Determination for Unmanned Aerial Vehicles with a Cross-Shaped Antenna Array

2012 ◽  
Author(s):  
Kefei Liu ◽  
João Paulo C.L. da Costa ◽  
Hing Cheung So ◽  
Luiz F. de A. Gadêlha ◽  
Geovany A. Borges
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Antenna Array ◽  
Attitude Determination ◽  
Aerial Vehicles

scholarly journals LOW-COST NAVIGATION AND GUIDANCE SYSTEMS FOR UNMANNED AERIAL VEHICLES — PART 2: ATTITUDE DETERMINATION AND CONTROL

2013 ◽  
Vol 20 (1) ◽  
pp. 97-126 ◽  
Author(s):  
Roberto Sabatini ◽  
Leopoldo Rodríguez ◽  
Anish Kaharkar ◽  
Celia Bartel ◽  
Tesheen Shaid ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Attitude Determination ◽  
Low Cost ◽  
Sensor Data ◽  
Measurement Unit ◽  
Medium Size ◽  
Integrated Navigation ◽  
Aerial Vehicles ◽  
Guidance Systems ◽  
And Control

ABSTRACT This paper presents the second part of the research activity performed by Cranfield University to assess the potential of low-cost navigation sensors for Unmanned Aerial Vehicles (UAVs). This part focuses on carrier-phase Global Navigation Satellite Systems (GNSS) for attitude determination and control of small to medium size UAVs. Recursive optimal estimation algorithms were developed for combining multiple attitude measurements obtained from different observation points (i.e., antenna locations), and their efficiencies were tested in various dynamic conditions. The proposed algorithms converged rapidly and produced the required output even during high dynamics manoeuvres. Results of theoretical performance analysis and simulation activities are presented in this paper, with emphasis on the advantages of the GNSS interferometric approach in UAV applications (i.e., low cost, high data-rate, low volume/weight, low signal processing requirements, etc.). The simulation activities focussed on the AEROSONDE UAV platform and considered the possible augmentation provided by interferometric GNSS techniques to a low-cost and low-weight/volume integrated navigation system (presented in the first part of this series) which employed a Vision-Based Navigation (VBN) system, a Micro-Electro-Mechanical Sensor (MEMS) based Inertial Measurement Unit (IMU) and code-range GNSS (i.e., GPS and GALILEO) for position and velocity computations. The integrated VBN-IMU-GNSS (VIG) system was augmented using the inteferometric GNSS Attitude Determination (GAD) sensor data and a comparison of the performance achieved with the VIG and VIG/GAD integrated Navigation and Guidance Systems (NGS) is presented in this paper. Finally, the data provided by these NGS are used to optimise the design of a hybrid controller employing Fuzzy Logic and Proportional-Integral-Derivative (PID) techniques for the AEROSONDE UAV.

Improved landing radio altimeter for unmanned aerial vehicles based on an antenna array

2012 ◽  
Author(s):  
Ronaldo S. Ferreira ◽  
Marco A. M. Marinho ◽  
Kefei Liu ◽  
Joao Paulo C. L. da Costa ◽  
Arthur V. Amaral ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Antenna Array ◽  
Aerial Vehicles

Antenna array synthesis with clusters of unmanned aerial vehicles

Automatica ◽  
2008 ◽  
Vol 44 (8) ◽  
pp. 1976-1984 ◽  
Author(s):  
Ramu S. Chandra ◽  
Sean H. Breheny ◽  
Raffaello D’Andrea
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Antenna Array ◽  
Aerial Vehicles ◽  
Antenna Array Synthesis
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