Signals and Systems - Lecture 4: Continuous-Time (CT) ...
Signals and Systems - Lecture 4: Continuous-Time (CT) Systems
Instructor: Dennis Freeman Description: Drawing analogies with previous concepts in discrete-time systems, this lecture discusses the block diagrams, polynomial expressions, poles, convergence regions, and fundamental modes of continuous-time systems.
Signals and Systems - Lecture 5: Z Transform
Signals and Systems - Lecture 5: Z Transform
Instructor: Dennis Freeman Description: After reviewing concepts in discrete-time systems, the Z transform is introduced, connecting the unit sample response h[n] and the system function H(z). The lecture covers the Z transform's definition, properties, examples, and ...
Signals and Systems - Lecture 7: Discrete Approximation of ...
Signals and Systems - Lecture 7: Discrete Approximation of Continuous-Time ...
Instructor: Dennis Freeman Description: Having established representations and analytical methods for discrete-time and continuous-time systems, today's lecture uses the example of a leaky tank to show how Euler and trapezoidal approximations can convert a continuous ...
Signals and Systems - Lecture 10: Feedback and Control
Signals and Systems - Lecture 10: Feedback and Control
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 ...
Signals and Systems - Lecture 13: Continuous-Time (CT) ...
Signals and Systems - Lecture 13: Continuous-Time (CT) Feedback and ...
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 ...
Signals and Systems - Lecture 14: Fourier Representations
Signals and Systems - Lecture 14: Fourier Representations
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 ...
Signals and Systems - Lecture 9: Frequency Response
Signals and Systems - Lecture 9: Frequency Response
Instructor: Dennis Freeman Description: The response of a system to sinusoidal input gives valuable information about its behavior in the frequency domain, similar to convolution in the time domain. Eigenfunctions and vector plots are used to explore this frequency ...
Groundwater Hydrology - Diffusion Sampling
Groundwater Hydrology - Diffusion Sampling
Q&A with Denis Leblanc: Sample collection, diffusion sampling, contaminant storage, water lifting, multi-level samplers, contaminant plume cleanup.
Signals and Systems - Lecture 1: Signals and Systems
Signals and Systems - Lecture 1: Signals and Systems
Instructor: Dennis Freeman Description: This lecture introduces the administrative details of the course, and uses examples from several engineering fields to illustrate the central abstraction of 6.003: analysis and design of systems via their signal transform ...
Signals and Systems - Lecture 8: Convolution
Signals and Systems - Lecture 8: Convolution
Instructor: Dennis Freeman Description: In linear time-invariant systems, breaking an input signal into individual time-shifted unit impulses allows the output to be expressed as the superposition of unit impulse responses. Convolution is the general method of ...
Introduction to Algorithms - Recitation 20: Dynamic ...
Introduction to Algorithms - Recitation 20: Dynamic Programming: Blackjack
Description: This recitation revisits the perfect-information blackjack problem that was covered in lecture. Instructor: Victor Costan
Introduction to Algorithms - Recitation 24: Final Exam ...
Introduction to Algorithms - Recitation 24: Final Exam Review
Description: This recitation covers the wood-cutting problem (dynamic programming) and Bloom filters (hashing, probability). Instructor: Victor Costan
The Film Experience - Lecture 16 (2007): Film in the 1970s, ...
The Film Experience - Lecture 16 (2007): Film in the 1970s, Part II
Note: This video is from the Fall 2007 class. This lecture continues the discussion of transformation and subversion in 1970s films, specifically as embodied in work of director Robert Altman. Outline - Robert Altman (1925-2006) - Career - Defining qualities: - Moral ...
Introduction to Algorithms - Lecture 23: Computational ...
Introduction to Algorithms - Lecture 23: Computational Complexity
Description: This lecture introduces computational complexity, including how most decision problems are uncomputable, hardness and completeness, and reductions. Instructor: Erik Demaine
The Challenge of World Poverty - Lecture 22: Entrepreneurs ...
The Challenge of World Poverty - Lecture 22: Entrepreneurs and Workers
Description: This lecture talks about the relationship between the poor and entrepreneurship. Instructor: Abhijit Banerjee
The Challenge of World Poverty - Lecture 24: Policies, ...
The Challenge of World Poverty - Lecture 24: Policies, Politics: Can ...
Description: This lecture discusses theories and policies developed to help fight poverty. Instructor: Abhijit Banerjee
The Challenge of World Poverty - Lecture 25: Policies, ...
The Challenge of World Poverty - Lecture 25: Policies, Politics: Can ...
Description: This lecture discusses the impact of political economics on the world's poor. Instructor: Abhijit Banerjee
The Challenge of World Poverty - Lecture 26: Five Thoughts ...
The Challenge of World Poverty - Lecture 26: Five Thoughts in Place of a ...
Description: The professor provides some final thoughts to conclude the course on the challenges of world poverty. Instructor: Abhijit Banerjee
The Challenge of World Poverty - Lecture 15: Risk and ...
The Challenge of World Poverty - Lecture 15: Risk and Insurance
This lecture discusses the ways in which risk is costly to the poor and if insurance is beneficial to this population. Instructor: Abhijit Banerjee
The Challenge of World Poverty - Lecture 16: Insurance
The Challenge of World Poverty - Lecture 16: Insurance
This lecture covers risk and insurance for the world's poor. Instructor: Abhijit Banerjee