Sirisuk, Phaophak
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Sirisuk, Phaophak
Alternative Name
Sirisuk, P.
Main Affiliation
Email
phaophak.si@kmitl.ac.th
11 results
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Item type:Publication, Efficient parallel architecture for implementation of the CMA adaptive antenna(2013-07-01); This paper presents an efficient parallel architecture for implementation of a constant modulus algorithm (CMA) adaptive array antenna. By inserting delay units into the original CMA, a novel delayed CMA (DCMA) that can significantly reduce the associated critical path is derived. Consequently, a pipelining architecture that supports parallel processing is introduced for implementation of the DCMA. In addition to the pipelining technique, a power-of-two multiplier is proposed for the DCMA leading to the efficient FPGA implementation. The effects of delays and finite word-length on the convergence property of CMA are investigated via simulations. Moreover, the synthesized results demonstrate that FPGA implementation of the proposed architecture using power-of-two arithmetic achieves 26.9% resource reduction in comparison with that of fixed-point arithmetic and operating clock frequency higher than 65 MHz. The implemented FPGA was tested to confirm that the designed architecture operates well for CMA. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Effect of soil perturbation on radar identification of buried object using matrix pencil method(2016-03-07) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Adaptive array antenna using on-off and CMA algorithms for microwave RFID readers(2011-01-01); ; This paper proposes an adaptive antenna using a combination of on-off and CMA algorithms. With the proposed technique, the on-off algorithm is first employed to search for a desired signal direction in which maximum received power is achieved. Then, interference is suppressed by performing CMA. Simulations are conducted according to the potential application of the proposed adaptive antenna. The simulation results show the SINR improvement implying that the proposed adaptive antenna can be applied to microwave RFID systems in order to resolve reader collision. Furthermore, the proposed adaptive antenna is implemented and then experimented. The experimental results verify that the proposed adaptive antenna can reduce interference resulting in the collision problem. Copyright © 2011 The Institute of Electronics, Information and Communication Engineers. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Smart antenna using a combination of D3LS and NCLS algorithms(2012-10-02) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, A novel fuzzy logic control technique tuned by particle swarm optimization for maximum power point tracking for a photovoltaic system using a current-mode boost converter with bifurcation control(2010-04-01); This paper presents a novel fuzzy logic control technique tuned by particle swarm optimization (PSO-FLC) for maximum power point tracking (MPPT) for a photovoltaic (PV) system. The proposed PV system composes of a current-mode boost converter (CMBC) with bifurcation control. An optimal slope compensation technique is used in the CMBC to keep the system adequately remote from the first bifurcation point in spite of nonlinear characteristics and instabilities of this converter. The proposed PSO technique allows easy and more accurate tuning of FLC compared with the trialand-error based tuning. Consequently, the proposed PSO-FLC method provides faster tracking of maximum power point (MPP) under varying light intensities and temperature conditions. The proposed MPPT technique is simple and particularly suitable for PV system equipped with CMBC Experimental results are shown to confirm superiority of the proposed technique comparing with the conventional PVVC technique and the trial-and-error based tuning FLC. © ICROS, KIEE and Springer 2010. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Leaf Sensor for Stomata Transpiration Monitoring Using Temperature and Humidity(2018-07-02); Chongcheawchamnan, MitchaiThis paper presents a leaf sensor which was designed for stomatal transpiration detection. The sensor consists of a thermocouple, a humidity sensor and a programmed microcontroller. The thermocouple measures temperature difference between the leaf and its surrounding atmosphere while relative humidity of the atmosphere was recorded. The sensor design was verified with the standard tool and the image of stomata captured with a high-gain camera lens. From the experimental results, data collected from the developed sensor indicates the stomatal status. This proves the potentiality of the proposed sensor for stomatal transpiration detection. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, IoT-based Versatile Platform for Precision Farming(2018-12-24); This paper presents the use of IoT (Internet of Things) in agriculture such as smart or precision farming. The versatile controller is developed to monitor and control temperature and relative humidity in different ways to serve different types of use. Control methods including timer, hysteresis control, condition control, can be arranged in different sequences and periods of time. Eight multifunction output ports are available for actuators or loads. Results from real implementation are shown. Temperature and humidity in a greenhouse can be controlled in predefined ranges to suit with planting processes. Data on the cloud can be monitored in real-Time on PC or mobile application. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Performance comparison between a two-switch and RCD clamp forward converters(2019-07-01) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, FPGA implementation of QR decomposition using MGS algorithm(2010-04-29); FPGA implementation of MGS-QRD is presented in this paper. Mapping conventional QR triangular array of (2m <sup>2</sup>+3m+1) cells onto a linear architecture of m+1 cells is employed to reduce the number of required QR processors. The architecture for MGS-QRD implementation is discussed, including the structure of a boundary cell (BC) and internal cell (IC). A divider in BC is modified as a Look-Up Table (LUT) and multiplier. The multiplier divided from the divider can be accomplished by sharing it with another multiplier to reduce the resource for BC implementation. Furthermore, the conventional complex multiplication in IC is also modified with three multipliers and four adders. The designed architecture based on discrete mapping of MGS-QRD is implemented to examine FPGA resource utilization. The implementation results show the FPGA performance and resource utilization of MGS-QRD. © 2010 Springer-Verlag. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Performance evaluation of D3LS and NCLS smart antenna in mobile communications(2012-12-01)