Discrete Fourier transform

harmonics in power system is a major concern to power engineers for many years. Harmonics lead to industrial plant downtimes and power losses. Harmonic is the signal whose frequency is a multiple integer of the fundamental frequency. The highly non-linear devices are the sources of harmonics. Harmonic analysis is used to calculate the impact of harmonic producing loads on a power system [1]. The effect of harmonics on power system can be in the form of power efficiency decreasing, wire overheating, ageing of electrical systems, etc. [2]. Several algorithms have been projected on harmonic analysis and we can conclude from previous work done that Fast Fourier transform (FFT) is the most commonly used computation algorithm. FFT is a proficient algorithm used to compute discrete fourier transform (DFT). DFT gives a finite set of discrete-frequency magnitude spectrum values. Nowadays, DSP is become an important tool and have shown fast development in various field following the expressive advances on digital technology, image processing, robotics, circuits fabrication, VLSI applications. Filters is a device which removes unwanted components from signal. Filter classified into analog filter and digital filter. The digital filters are progressive, gives better, faster, minimum disturbances in the output. Digital filters are able to accomplish various operations that world, at best, be highly difficult to follow with analog filters. The types of digital filters are IIR and FIR…

Introduction In color reproduction, gamut or the color gamut is a certain complete subset of colors, which can be accurately represented in a given circumstance such as given color space [1]. In another words gamut literally means the total range of possibilities that can be accomplished from red, green and blue (RGB) for a particular device [2]. If certain color cannot be reproduced accurately there is a way how to calculate the color difference by adequately describing the color by numerical…

effect in the sense that noise often adds to the information-bearing signal at various points between the source and the destination. For the purpose of analysis, all the noise will be lumped into one source added to the signal in the AWGN channel. So, in this paper, effect of various noise on BER of different modulation schemes have been studied. The various sources of noise used for this system are mentioned below: 1. Gaussian Noise: Various types of noise sources are gaussian and have a flat…

Drug content in cocrystals was determined by taking equivalent amount of the powder containing 10mg of levofloxacin, dissolved in 10mL of ethanol, shaken for 10-15 minutes and the volume was made up to 100mL using simulated gastric fluid (enzyme free) of pH 1.2. The samples were centrifuged and filtered through 0.45 µm filter, diluted suitably and analysed using UV-Visible spectrophotometer (Systronics, India) at λmax of 227nm. All observations were done in triplicate. Fourier Transform Infrared…

potential. In Finding Forrester, Jamal, a talented high schooler, meets William Forrester, a hermit author. At first they seem to be two sides of the same coin, but as conflict occurs they rise above their fears and grow for the better. In chaotic confrontations, people’s faults become apparent, and they transform into who they really are. During confrontation, people realize their transformation into who they really are. Professor Crawford, the antagonist who could make or break Jamal’s…

As discussed in the earlier section, wavelet transform of the signals is recommended due to the limitations offered by STFT. AWT (Analytic Wavelet Transform) provides suitable and adaptive time-scale and time-frequency domains. Zhu [15] found better results using AWT over STFT while analyzing the noise causing human hearing loss. AWT is a type of the Continuous Wavelet Transform that calculates the product of signals and complex Morlet wavelet due to which the resulting coefficients are complex…

P. one student was uninterested in the activity because of the topics like superheroes, dragons, and wizards. So I went over and asked what she enjoyed and she shared about soccer. Therefore, for her I chose the genre of realistic fiction for the next round in the activity. Then had the students act out the characters they would find in a realistic fiction book about soccer. All of the students were excited and that student was smiling and engaged in the rest lesson. A small change due to…

In Finding Forrester, an individual's growth and change depends on who is included in their surrounding environment; by seeing how others live helps one make a transformation into who that person will be in the future. People transform into better individuals by whom they involve in their lives. As the main character Jamal decides to take a dare from one of his classmates he breaks into Foresters home. When he breaks in he doesn’t notice that Forrester is still awake, he later finds out by…

How is it that people can look around at other individuals and watch them transform right in front of their eyes? In the movie Finding Forrester people are able to watch many characters transform just due to the human beings around them. Jamal has a strong passion for writing but, is always looking for help to improve. William is a writer who has shut himself away from society. These two happen to have a truly unique meeting, Jamal breaks into William's apartment due to a dare, from this point…

In Metamorphosis by Franz Kafka, Gregor is not the only one who transforms but the whole family dynamic transforms due to his metamorphosis into a cockroach. Due to that transformation, there is conflict between family members particularly between Gregor’s mother and Grete, his sister. This transformation helps the readers see another view on human nature and family dynamics. From the start of the story, Gregor is transformed into a cockroach, which leads his family into conflict about how to…