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Instructor: Dennis Freeman Description: As digital signal processing components have become cheaper, traditional design problems in audio and video systems have converted to discrete-time. This lecture compares system responses and Fourier representations in discrete- ...
Instructor: Dennis Freeman Description: The concept of the Fourier series can be applied to aperiodic functions by treating it as a periodic function with period T = infinity. This new transform has some key similarities and differences with the Laplace transform, its ...
Instructor: Dennis Freeman Description: Today's lecture discusses an application of Fourier series, exploring how the vocal tract filters frequencies generated by the vocal cords. Speech synthesis and recognition technology uses frequency analysis to accurately ...
Instructor: Dennis Freeman Description: In the next half of the course, periodic functions are represented as sums of harmonic functions, via Fourier decomposition. Linear time-invariant systems amplify and phase-shift these inputs to produce filtered output, an ...
Instructor: Dennis Freeman Description: Additional examples today illustrate the use of feedback to reduce sensitivity to variable component parameters and crossover distortion in audio systems, and to control two unstable systems (magnetic levitation, inverted ...
Instructor: Dennis Freeman Description: Today's lecture continues the discussion of control systems by demonstrating how feedback loops can add speed and bandwidth to the LM741 op-amp, and allow better control of a robot arm's angular position.
Instructor: Dennis Freeman Description: Bode plots are a simpler method of graphing the frequency response, using the poles and zeros of the system to construct asymptotes for each segment on a log-log plot. The Q factor affects the sharpness of peaks and drop-offs in ...
Instructor: Russ Tedrake Description: Prof. Tedrake introduces the power and complexity of modern control systems, which use feedback to stabilize and compensate for delays and other errors. Examples are taken from his research into perching planes and other ...
Andre Hamman (MIT), Ting Shih, Greg Snyders (ClickDiagnostics, Inc.). 10/12/2009
Discussion with Session IV presenters. Moderator: Alex Pentland, Toshiba Professor of Media, Arts, and Sciences, MIT; Director, Human Dynamics Lab. 10/12/2009
Joe Bondi, CTO, FitnessKeeper, Inc. 10/12/2009
Michael Siegel, Principle Research Scientist, MIT Sloan School of Management. 10/12/2009
Jonathan Hayes, Co-founder & President, Amherst Mobile Ventures Inc. 10/12/2009
Anmol Madan, Ben Waber, Margaret Ding, Paul Kominers, Alex (Sandy) Pentland (MIT). 10/12/2009
Discussion with Session III presenters. Moderator: Leonidas Kontothanassis, Senior Staff Engineer, Performance Analysis, Google Boston Labs. 10/12/2009
Kevin Marcus (Intelius Inc.). 10/12/2009
Michiel van Meeteren, Ate Poorthuis, Elenna Dugundji (Universiteit van Amsterdam, NL). 10/12/2009
Nathan Eagle (MIT, Santa Fe Institute). 10/12/2009
Kurt Iveson (University of Sydney, AU). 10/12/2009
Discussion with Session II presenters. Moderator: Jim Adler, Chief Privacy Officer and General Manager, Systems, Intelius. 10/12/2009