• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.8 no.2
• /
• pp.41-45
• /
• 1994

In this paper, it is implemented that Sub- MRA PWM techinque which is applied to MRA PWM technique using the Digital Signal Processor. Unstable element of analog is reduced for Sub - MRA PWM technique by digital signal pressing. And harmonic is analized by simulation to verify that. It is afford the process induction motor control with real time by minimizing the delay time of digital system. Time delay which is a defect of digital control can by minimized using fast caculation. Therefore, real time control is implemented in the induction motor

• Journal of Astronomy and Space Sciences
• /
• v.13 no.2
• /
• pp.163-172
• /
• 1996

The objective of this paper is to show how digital signal processing experiment(DSPE) was designed and to present its experimental results in orbit and on the ground. The multi-missional and flexible DSPE was designed in a reliable manner. Among several experiments executed in orbit and on the ground, a high-speed(19.2kbps) software modulator experiment was discussed in this paper. A 32bit floating-type TMS320C30, which was developed for commercial purposes, was used on LEO micro-satellites, KITSAT-1 and KITSAT-2. This digital signal processor(DSP) can be applied to the various payloads of the next generation satellites.

• Journal of Satellite, Information and Communications
• /
• v.12 no.2
• /
• pp.1-10
• /
• 2017

In this paper we propose three existing reflection removal algorithms and one proposed algorithm to estimate accurate targets in near field using IR-UWB (Impulse-Radio Ultra Wideband) radar. The received signal includes unnecessary reflected wave signals to the target signal. A reflective cancellation algorithm was used to remove unnecessary signals and estimate only the correct target signal. The location of the targets is estimated in real time with one transmitting antenna and one receiving antenna. In order to overcome the disadvantages of the existing three reflection removal algorithms, we propose a new reflection removal algorithm and estimate the most accurate target. Also we used DSP(Digital Signal Processor) to install the external mounting of vehicles. This paper will contribute to the study of the future reflections.

• The Bulletin of The Korean Astronomical Society
• /
• v.25 no.2
• /
• pp.56-56
• /
• 2000

• KIPE Magazine
• /
• v.9 no.2
• /
• pp.23-25
• /
• 2004

1980년대 초반까지 대부분의 제어기는 아날로그 형태로 구성되어 복잡한 연산을 수행하기에는 많은 제약이 있었으나, 1980년대 초반부터 일반에게 소개되기 시작한 마이크로프로세서는 과거 불가능하다고 여겨졌던 연산을 현실화하는 계기를 마련하였다. 초기에는 8비트 혹은 16비트 형태의 마이크로프로세서가 주류를 이루었으나. 컴퓨터 및 반도체 분야의 눈부신 발달에 힘입어 80년대 중반에는 32비트 고성능 Digital Signal Processor(DSP)가 출현하게 된다.(중략)

• Journal of Advanced Marine Engineering and Technology
• /
• v.38 no.9
• /
• pp.1125-1130
• /
• 2014

In this paper, we propose a sound reception system against surrounding noise for ships based on digital signal processing technologies. In order to suppress unwanted surrounding noises, a digital band-pass filter is designed, which the pass-band of the filter is between 70Hz to 820Hz. Also, we develope a sound direction indicating algorithm with 4 microphones. After filtering the audio signals from 4 microphones, the developed sound direction indicating algorithm can indicate 8 directions. In addition, we implement prototype board for the sound reception using a digital signal processor chip and audio codecs, and verify the proposed algorithm.

• The Transactions of the Korean Institute of Power Electronics
• /
• v.10 no.2
• /
• pp.162-168
• /
• 2005

In this paper, a digital current mode control is designed for the power converter applications. The designed digital current mode controller is derived analytically from the continuous time small signal model of the power converters. Due to the small signal model based derivations of the control law, the designed control method can be applicable to boost, buck, and buck-boost converters. It is also proven that the controlled power converter employing the designed digital current mode controller is always stable regardless of an operating conditions. In order to show the usefulness of a designed controller, experiments are carried out using a 16bit DSP micro-processor, TMS320LF2406A.

• Proceedings of the IEEK Conference
• /
• 1998.06a
• /
• pp.207-210
• /
• 1998

Brushless servomotor systems offer a great advantae in unmanned factories where a great number of servomotors are employed, because of its easy maintenance charateristics and controllability. This paper propose a sinusoidal type brushless DC motor speed servo system which has high efficiency and usability in industrial field as described above. And this servo system is realized by a new Auto-Tuning PI control algorithm and verified it's practical potential of implementation by self-designed driver system. In particular, DSP(digital signal processor) is adopted in this study as controller and sensor signal processor owing to their fast computational capability and suitable architecture.

• 제어로봇시스템학회:학술대회논문집
• /
• 1991.10a
• /
• pp.286-291
• /
• 1991

This paper discusses sliding made control of robot manipurators assuming that nonlinear terms, which are inertia term, Coriolis force term and centrifugal taffn, are external disturbances. We obtained the unknown parameter of its linear terms by Signal Compression Method. We propose a new control input algorithm to decrease chattering in the application of sliding mode control of manipulator whose nonlinear components are regarded as disturbances. In this experiments, we used DSP(Digital Signal Processor) controller to suppress chattering by obtaining a quick switching speed.

• Proceedings of the IEEK Conference
• /
• 2001.06e
• /
• pp.47-50
• /
• 2001

Nowadays ARM7 core is used in many fields such as PDA systems because of the low power and low cost. It is a general-purpose processor, designed for both efficient digital signal processing and controller operations. But the advent of the wireless communication creates a need for high computational performance for signal processing. And then This paper has been designed a floating-point multiplier compatible to IEEE-754 single precision format for ARMTTDMI performance improvement.