Sliding filter

In this paper, a nonlinear control scheme for dynamic voltage restorer (DVR) is proposed to reduce the voltage disturbances for loads under grid voltage sags and nonlinear loads. First, the nonlinear model of the system consisting of LC filter is obtained in the dq0 synchronous reference frame.

7p viaespa2711 31-07-2021 20 1   Download

Reconstruction of neuron anatomy structure is a challenging and important task in neuroscience. However, few algorithms can automatically reconstruct the full structure well without manual assistance, making it essential to develop new methods for this task.

19p vioklahoma2711 19-11-2020 11 1   Download

One of the easiest and efficient way of water conservation to solve drinking water scarcity is rooftop water harvesting. To evaluate the performance of the first flush with micromesh filter system, inflow and outflow of the rooftop water samples were analysed for pH, EC, TDS, SAL and TSS parameters. In general, the PH, electrical conductivity, and TDS of the roof water samples were within the drinking water standards and the first flush with micromesh filter system was found to reduce TDS values.

9p chauchaungayxua6 26-06-2020 15 2   Download

Slow sand filtration has been an effective means of treating water for the control of microbiological contaminants. Schmutzdecke is the layer of the microbial community that is responsible for treating the water through the sand bed. As water passes through this biological layer, foreign particles are trapped and essentially eaten by bacteria forms on this layer. Development of Schmutzdecke layer depends on available microbes in raw water, food supply, oxygen supply, residence time, and wetting of sand bed.

9p nguaconbaynhay5 16-05-2020 14 0   Download

The research on hydrophobic and superhydrophobic surface has been extensively studied by many groups around the world. The parameter determined the wetting ability of a surface is value of water contact angle. Measuring contact angle become extremely important for both academic and industrial field. In this study, we propose a simple and affordable methodology to calculate contact angle. This approach used portable microscope of Koolertron for droplet images capturing and free software of ImageJ for contact angle fitting and calculation.

8p bangchungthep4 09-03-2020 24 0   Download

This paper presents a simple compensation scheme for extending the stable input range of a single-bit sigma-delta (Σ-Δ) modulator that is normally stabilized in sliding mode. The proposed control scheme requires a saturation element that provides additional feedback to modify and stabilize the modulator loop filter when the modulator is going to lose stability due to large input level.

4p cathydoll5 27-02-2019 11 0   Download

Lecture Digital signal processing - Chapter 4: FIR filtering and convolution includes content: Block processing methods (Convolution: direct form, convolution table; convolution: LTI form, LTI table; matrix form; flip-and-slide form; overlap-add block convolution method), sample processing methods.

32p youcanletgo_04 15-01-2016 64 4   Download

ITARM - Incremental Temporal Association Rules Mining dựa trên nền của thuật toán Sliding-Window Filtering, duy trì những tập tập phổ biến sau khi dữ liệu đã được cập nhật. Cùng tìm hiểu thuật toán này qua bài tiểu luận Thuật toán hiệu quả trong việc khai thác những luật kết hợp thời gian - ITARM.

20p wave_12 05-04-2014 72 7   Download

Large bandwidth penalty since the subcarriers can’t have perfectly rectangular pulse shapes and still be time-limited. Very high quality (expensive) low pass filters will be required to maintain the orthogonality of the subcarriers at the receiver.

27p nhq_khtn 07-11-2013 53 3   Download

Design Philosophies: Radiological release to the environment is prevented by maintaining R/B pressure negative(-63Pa). Radioactive substance in PCV are removed and captured in the filter device.R/B Closed Cooling Water System (RCW) / Reactor Service Water System (RSW) How are the many Heat exchangers cooled down?

33p giotletinh_hd2009 14-10-2013 86 7   Download

Tham khảo bài thuyết trình 'module 7: advanced application and web filtering', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

23p nhqkhtn 24-08-2013 70 4   Download

PCM consists of three steps to digitize an analog signal: 1.Sampling 2.Quantization 3.Binary encoding Before we sample, we have to filter the signal to limit the maximum frequency of the signal as it affects the sampling rate. Filtering should ensure that we do not distort the signal, ie remove high frequency components that affect the signal shape.

75p vanmanh1008 24-06-2013 48 4   Download

Amplitude distortion: Voice channel occupies the band from 300 to 3400 Hz. Some frequencies are attenuated more than others. Phase distortion Velocity of propagation varies with frequency. Filter: increase toward band center and decrease toward band edge.

18p vanmanh1008 24-06-2013 58 4   Download

The properties of Convolutional codes. We introduced interleaving as a means to combat bursty errors by making the channel seem uncorrelated. We also studied “Concatenated codes” that simply consist of inner and outer codes. They can provide the required performance at a lower complexity.

36p doanhung_dtvtk10 24-03-2013 69 6   Download

How decoding is performed for Convolutional codes? What is a Maximum likelihood decoder? What are soft decisions and hard decisions? How does the Viterbi algorithm work?The demodulator makes a firm or hard decision whether one or zero was transmitted and provides no other information for the decoder such as how reliable the decision is.

29p doanhung_dtvtk10 24-03-2013 58 5   Download

Another class of linear codes, known as Convolutional codes. We studied the structure of the encoder and different ways for representing it.What are the state diagram and trellis representation of the code? How the decoding is performed for Convolutional codes? What is a Maximum likelihood decoder? What are the soft decisions and hard decisions? How does the Viterbi algorithm work?

28p doanhung_dtvtk10 24-03-2013 54 4   Download

Another class of linear codes, known as Convolutional codes. We study the structure of the encoder. We study different ways for representing the encoder.Convolutional codes offer an approach to error control coding substantially different from that of block codes. A convolutional encoder: encodes the entire data stream, into a single codeword. does not need to segment the data stream into blocks of fixed size (Convolutional codes are often forced to block structure by periodic truncation). is a machine with memory.

20p doanhung_dtvtk10 24-03-2013 47 4   Download

Evaluating the average probability of symbol error for different bandpass modulation schemes Comparing different modulation schemes based on their error performances.Transforming signals to improve communications performance by increasing the robustness against channel impairments (noise, interference, fading, ...)

43p doanhung_dtvtk10 24-03-2013 56 4   Download

Some bandpass modulation schemes MPAM, MPSK, MFSK, MQAM How to perform coherent and noncoherent detection.How to calculate the average probability of symbol error for different modulation schemes that we studied? How to compare different modulation schemes based on their error performances?

25p doanhung_dtvtk10 24-03-2013 71 4   Download

Another source of error due to filtering effect of the system: Intersymbol. interference (ISI) The techniques to reduce ISI. Pulse shaping to achieve zero ISI at the sampling time. Equalization to combat the filtering effect of the channel.Some bandpass modulation schemes used in DCS for transmitting information oer channel. MPAM, MPSK, MFSK, MQAM How to detect the transmitted information at the receiver. Coherent detection. Noncoherent detection.

27p doanhung_dtvtk10 24-03-2013 56 5   Download