Jiawei Huang 37154135 Fourier Transform Assignment 1. Fourier transform of sine wave (code): import numpy as np import matplotlib.pyplot as plt from scipy.fftpack import fft‚fftfreq dt = 0.01 time = np.arange(0‚5.‚dt) f_1 = 3. a_1 = 2.3 y = a_1*np.sin(2.*np.pi*time*f_1) plt.plot(time‚y) plt.xlabel("Time t [s]") plt.ylabel("Wave") plt.title("Wave Signal") plt.show() n = time.shape[-1] transform = (fft(y)[:n/2]) * 2./n frequency = fftfreq(n‚time[1]-time[0])[:n/2]
Premium Hertz Wave Fourier transform
The bidding process for Hertz began when William Ford Jr. announced plans to explore “strategic alternatives” for Hertz in April 2005. Two months later in June‚ an S-1 registration statement was filed setting up a “dual track process” that would result in a Hertz IPO should other sale prospects fail. This decision affects the bidding process in multiple ways. For one there is less time for the two bidding groups to come up with a price and resulting agreement. They are forced to act quickly and find
Premium Investment Car rental companies Internal rate of return
1) Hertz makes five adjustments (ignoring ‘Other adjustments’) to net income before including the changes in operating assets and liabilities. List each of these five items and explain why each of these items is added (subtracted) from net income to calculate Net Cash Provided by Operating Activities. Answer: The five adjustments to net income before including the changes in operating assets and liabilities in the consolidated statement of cash flows of Hertz Global Holdings‚ Inc. are listed
Premium Income statement Generally Accepted Accounting Principles Cash flow statement
Speed of a Computer Patrick Reagan Computers and Information Processing/CIS319 David Avery Jr. December 14‚ 2008 Speed of a Computer Computers have evolved dramatically over the last 70 years. The size may be one of the main changes. The first computers were the size of a classroom. Today a computer can fit in an adult hand. Another change is the speed in which the computer operates or processes information. The computer user in today’s market wants information
Free Computer Operating system Computer data storage
Intense terahertz antenna array with interdigital electrodes Lei Hou‚ Wei Shi*‚ Ming Xu‚ Yong Chen Department of applied physics‚ Xi’an University of Technology‚ Shaanxi‚ China‚ 710048 ABSTRACT In this work a powerful terahertz antenna array with interdigital electrodes is fabricated‚ and the performance of one antenna unit is compared with a conventional resonant dipole antenna. The antenna unit has a better capacity of generating THz wave compared with a conventional resonant dipole antenna
Premium Laser Electromagnetic spectrum Infrared
International Conference on Microelectronics‚ Communication and Renewable Energy (ICMiCR-2013) Compact dual-band Monopole Antenna for WLAN/WiMAX Applications Khalid Ali Sultan Jasim Y. E. Mohammed Ali Dept. Electrical Engineering University of Mosul‚ College of Engineer Mosul‚ Iraq khalidsultan3041@yahoo.com Dept. Electrical Engineering University of Mosul‚ College of Engineer Mosul‚ Iraq a.yessar@yahoo.com Abstract— This paper displays a new compact monopole antenna of dual
Premium Printed circuit board Radio Wireless
Samantha Mackey 13. 2nd hour PHYSICS LAB REPORT: SPEED OF SOUND Purpose: In this lab‚ we will be doing 3 major things: 1) Collecting and organizing data to obtain resonant points in a closed pipe‚ 2) measure the length of a closed-pipe resonator‚ and 3) analyze the data to determine the speed of sound. Procedure: 1. Fill the graduated cylinder nearly to the top with water‚ with a tall glass tube open at both ends (the water level with act as the closed end). 2. Determine
Premium Sound Hertz Frequency
High Frequency communication refers to radio communication in the range of frequency between 3-30 MHz or 3 000 000 – 30 000 000 Hz. The wave length range of High Frequency is 10-100 meters The Higher the frequency the shorter the wave length. High Frequency belongs to the radio portion of the electromagnetic spectrum. When electric current is sent back and forth through a wire an electromagnetic wave is created which can be amplified and transmitted out through an antena. It can then be received
Premium Electromagnetic radiation Radio Electromagnetic spectrum
Speed of Sound Lab Report Jamie Cook PHYS 1114: College Physics I Oklahoma City Community College December 10‚ 2013 Purpose: The purpose of this experiment is to measure the speed of sound in air and to determine the effects of frequency on the speed of sound. Apparatus (equipment used): Signal generator: manufacturer- EMCO‚ model number- SS-1‚ range- 20Hz-2MHz‚ least count- 1Hz Frequency meter: manufacturer- DEADALON CORPORATION‚ model number- N/A‚ range-
Premium Sound Speed Wavelength
*37262* Printed in Switzerland Geneva‚ 2012 ISBN 978-92-61-14021-2 Edition of 2012 Radio Regulations Resolutions and Recommendations 3 E Radio Regulations Resolutions and Recommendations Edition of 2012 Radio Regulations Resolutions and Recommendations Edition of 2012 © ITU 2012 All rights reserved. No part of this publication may be reproduced‚ by any means whatsoever‚ without the prior written permission of ITU. Note by the Secretariat This revision of
Premium Frequency Wavelength Radio