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DSP Laboratory: Introduction, Hardware and Software Setup (m13036)

Author: Erik Luther

Keywords: 6711, Digital, dsk, DSP, labview, LabVIEW DSP, lv, Processing, Signal, speedy, speedy 33, texas instruments, ti, tidsk

Summary: The purpose of this lab is to familiarize students with the DSP development workstation in the signal processing lab by examining sampling, analysis, and reconstruction of continuous-time signals. Specifically, we will first look at sampling/reconstruction of continuous-time signals. We will then examine time- and frequency-domain displays. Finally ... on aliasing.

Subject:	Science and Technology
Language:	English
Popularity:	94.83%
Revised:	2006-01-24
Revisions:	2

Best Practices in Online Teaching (col10453)

Author: Larry Ragan

Institution: Penn State World Campus

Keywords: Best Practices in Online Teaching Course, blended learning, distance education, instructional design, online learning, online pedagogy, online teaching

Summary: This course provides practical strategies and pedagogical advice for instructors teaching in an online environment. The course includes advice about: preparing to teach in an online environment, managing the teaching of a course, and addressing larger issues surrounding online teaching (e.g. workload, intellectual property, etc.) The course includes interviews from ... State University.

Subject:	Social Sciences, Science and Technology
Language:	English
Popularity:	93.07%
Revised:	2007-08-28
Revisions:	2

amplitude wave (col10386)

Author: aek juew

Keywords: amplitude wave, DOPPLER EFFECT, frequency of a sound wave, shock wave, sound wave, Wavelength

Summary: AMPLITUDE:The term 'amplitude' refers to the physical size of an oscillation.For sound waves in air,the amplitude is the maximum distance an individual air molecule will move from its starting point as a sound wave passes by. The amplitude of a sound wave determines its loudness. A sound wave ... can be AMPLITUDE:The term 'amplitude' refers to the physical size of an oscillation.For sound waves in air,the amplitude is the maximum distance an individual air molecule will move from its starting point as a sound wave passes by. The amplitude of a sound wave determines its loudness. A sound wave with a large amplitude will sound louder than a small amplitude wave. BIG BANG:The big bang theory teaches that at a specific moment, the universe began as a very small, extremely dense mass that exploded outward in a violent explosion.According to the theory, the universe is continuing to expand today as a result of this initial explosion.The observed red shift of distant stars and galaxies is one of the primary pieces of evidence for the big bang theory. BLUE SHIFT:The change in color toward the blue end of the spectrum due to an object's motion toward the observer. The blue shift is a result of the frequency of light waves coming from an object being affected by the Doppler effect. It is only noticeable when objects are moving at very high speeds. CONSTRUCTIVE INTERFERENCE:When two waves occupy the same space at the same time, their amplitudes add.If they add to produce a wave with a larger amplitude, they are said to be interfering constructively. DESTRUCTIVE INTERFERENCE:When two waves occupy the same space at the same time,their amplitudes add.If they tend to cancel each other out in doing so,the waves are said to be interfering destructively. DOPPLER EFFECT:The apparent change in frequency of a sound wave. The Doppler effect can be caused by the motion of the source of the sound,the motion of the observer,or by the motion of both. DOPPLER,JOHANN CHRISTIAN:(1803-1853).Austrian physicist and mathematician. J.C.Doppler first explained the Doppler effect in 1842. DOPPLER RADAR:Radar systems often utilize the Doppler effect to measure velocity.A light wave emitted atan object will be reflected back at a different frequency if the object is moving.The change in frequency can then be used to determine the velocity. EINSTEIN,ALBERT:(1879-1955).German-born American physicist.Einstein produced the theories of Relativity in the early 1900's that form the basis of modern physics. These theories gave scientists a different understanding of space and time, and also predicted the expansion of the universe. FREQUENCY:The number of oscillations per unit time. Frequency is commonly measured in oscillations per second, or Hertz. GLOBAL POSITIONING SYSTEM:A network of satellites which circle the globe and broadcast radio signals.These signals are analyzed by GPS units on the ground to yield information about position and speed. HERTZ:The unit of measurement for frequency.One Hertz, or 1 Hz, is defined as one oscillation per second. HERTZ,HEINRICH:(1857-1894).German physicist. HUBBLE,EDWIN:(1889-1953).American astronomer.Hubble's observation of the Doppler effect in distant stars and galaxies help form the foundation of modern understanding of cosmology.Hubble observed that distant galaxies and stars are red shifted and therefore must be moving away from us at very high speeds.These observations are direct evidence that the universe expanding. HUBBLE'S LAW:A mathematical principle that states that the velocity at which a distant star or galaxy is receding from Earth is directly proportional to its distance.The relationship is expressed in the equation v = Hod where v is the velocity of recession, Ho is the Hubble constant, and is the distance of the receding object from Earth.The precise value of the Hubble constant is not known. INFRASONIC:Below the frequency range of human hearing;below 20 Hz.Infrasonic sounds can be

Subject:	Science and Technology
Language:	English
Popularity:	93.73%
Revised:	2006-10-26
Revisions:	New

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