29:29'must have', 'might have', 'should have' & 'can't have' to talk about the past: Live English Class
BBC Learning English
MIT 6.02 Introduction to EECS II: Digital Communication Systems, Fall 2012 View the complete course: http://ocw.mit.edu/6-02F12 Instructor: George Verghese This lecture introduces phase characteristic in the frequency response, and the derivation of DTFT for a rectangular pulse. An example of how to send a pulse over a low-pass and a bandpass channel opens discussion about modulation and demodulation. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Published 2014-03-18 · Watch on YouTube ↗
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29:29BBC Learning English
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