Lecture 1, Introduction | MIT RES.6.007 Signals and Systems, Spring 2011
Lecture 1, Introduction Instructor: Alan V. Oppenheim View the complete course: http://ocw.mit.edu/RES-6.007S11 License: Creative Commons BY-NC-SA More ...
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[MUSIC PLAYING] PROFESSOR: I'm Al Oppenheim, and I'd like to welcome you to this videotape course on signals and systems. Signals, at least as an informal definition, are functions of one or more independent variables that typically carry some type of information. Systems, in our setting, would typically be used to process signals. One very common example of a signal might be, let's say, a speech signal. And you might think of the air pressure as a function of time, or perhaps the electrical signal after it goes through the microphone transducer as a function of time, as representing the speech signal. And we might see a typical speech signal looking something like I've indicated here. It's a function of time, in this particular case. And the independent variable, be...
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[MUSIC PLAYING] PROFESSOR: I'm Al Oppenheim, and I'd like to welcome you to this videotape course on signals and systems. Signals, at least as an informal definition, are functions of one or more independent variables that typically carry some type of information. Systems, in our setting, would typically be used to process signals. One very common example of a signal might be, let's say, a speech signal. And you might think of the air pressure as a function of time, or perhaps the electrical signal after it goes through the microphone transducer as a function of time, as representing the speech signal. And we might see a typical speech signal looking something like I've indicated here. It's a function of time, in this particular case. And the independent variable, be...
