A mapping method for 3D satellite and sensor images using a road extraction algorithm for occlusion processing of virtual targets

Weon, Sun-Hee; Kim, Gye-Young; Cha, Jaehyuk; Park, KeeHong; Choi, Hyung-Il

doi:10.1504/ijcat.2013.051387

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…This design uses the RC low-pass filter circuit to filter out the occasional instantaneous high frequency components in the circuit and pass through the three-phase voltage signal at low frequency. Taking the A phase as an example, the transfer function of the RC low pass filter circuit is shown in formula (1) (2) Power Module Circuit. For any system, a stable and reliable power supply system is the foundation for the stable operation of the system.…”

Section: Hardware Design Of Motor Drive Systemmentioning

confidence: 99%

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Design of Motor Drive System for Four Rotor Unmanned Aerial Vehicle

Li¹,

Liu²,

Zhao³

2018

Proceedings of the 8th International Conference on Social Network, Communication and Education (SNCE 2018)

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The motor drive system is a servo mechanism to control the four rotor UAV (unmanned aerial vehicle) system, and it is also a key component to control the attitude and trajectory of UAV. Its performance directly affects the performance and safety of the flight control system. The working principle of the system is that the motor drive control signal can receive output of flight control computer and convert into current signal to coordinate control of four motor speed, thus the attitude and action of four rotor UAV flight are changed, and the mission set by the operator is completed to control the smooth flight of UAV.

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Section: Hardware Design Of Motor Drive Systemmentioning

confidence: 99%

“…In recent years, with the development of electronic technology, multiple rotor unmanned aerial vehicle (UAV) are brought to the attention of the various countries in the field of civil and military fields because of its concealment and motor ability, low costs of manufacturing and maintenance and widely application [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Design of Motor Drive System for Four Rotor Unmanned Aerial Vehicle

Li¹,

Liu²,

Zhao³

2018

Proceedings of the 8th International Conference on Social Network, Communication and Education (SNCE 2018)

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“…In the aeromodelling field, traditional brush motor hasn't already meet the aeromodelling system's special requirements of the high precision, low power consumption, stability, light weight [1][2]. Brushless motor with small size, light weight, low cost, no commutation spark, no carbon brush wear, long service life, etc [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Design of the Hardware Scheme of the UAV Electronic Governor System

Li¹,

Liu²,

Zhao³

2018

Proceedings of the 8th International Conference on Social Network, Communication and Education (SNCE 2018)

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The traditional aero model DC(direct current) motor is commutated mechanically by brush and commutator, however, there is mechanical friction between the brush and commutator, which will cause noise, sparks, electromagnetic interference and many other problems. Because of the disadvantages of high manufacturing cost, short service life and difficult maintenance, the use of brush motors is restricted in many situations. The DC brushless motor is the rotation of the magnetic pole, while the armature is still. The electronic inverter is controlled by the magnetic pole position signal to supply the power to the armature. Using the electronic inverter to replace the mechanical commutator has a very obvious advantage. This paper designs a UAV(unmanned aerial vehicle) brushless motor speed controller based on SCM(single chip microcomputer), mainly in order to meet the light weight, high control precision, good stability and other special requirements of the UAV brushless motor controller. The results show that the design uses fewer components to realize the start, stop, forward and reverse rotation, acceleration and deceleration, emergency stop and other functions.

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