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- 10:05, 11 December 2008 (diff | hist) . . (0) . . Final ECE301Fall2008mboutin (→Chapter 7: Sampling) (current)
- 10:03, 11 December 2008 (diff | hist) . . (+26) . . Final ECE301Fall2008mboutin (→Chapter 7: Sampling)
- 10:02, 11 December 2008 (diff | hist) . . (+65) . . Sampling theorem ECE301Fall2008mboutin (→Sampling Theorem) (current)
- 10:00, 11 December 2008 (diff | hist) . . (+400) . . N Sampling theorem ECE301Fall2008mboutin (New page: ==Sampling Theorem== (Test question to state in your own words!) Let <math>\omega_m</math> be a non-negative number. Let x(t) be a signal with <math>X(\omega)=0</math> when <math>|\omega...)
- 21:34, 23 November 2008 (diff | hist) . . (+540) . . N HW10 Emily Blount ECE301Fall2008mboutin (New page: ==Example of a z-transform== let <math>x[n]=\frac{u[n]}{2^n}</math> <math>X(z) = \sum_{n=-\infty}^{\infty}x[n]z^{-n} </math> <math>= \sum_{n=-\infty}^{\infty}\frac{u[n]}{2^n}z^{-n}</mat...) (current)
- 21:26, 23 November 2008 (diff | hist) . . (+46) . . Homework 10 ECE301Fall2008mboutin (→HW10)
- 06:44, 20 November 2008 (diff | hist) . . (+125) . . Cheat3 ECE302Fall2008sanghavi (→Correlation Coefficient)
- 18:14, 17 November 2008 (diff | hist) . . (+635) . . N Emily Blount ECE301Fall2008mboutin (New page: ==A Laplace Transform Example== <math> x(t)=-e^{-2t}u(-t)</math> Therefore the Laplace Transform is: <math>X(s) = \int_{-\infty}^{\infty} x(t)e^{-st}dt</math> <math> = \int_{-\infty}^{...) (current)
- 18:02, 17 November 2008 (diff | hist) . . (+41) . . Homework 9 ECE301Fall2008mboutin (→HW#9)
- 16:42, 10 November 2008 (diff | hist) . . (+715) . . N Confidence Interval Bernoulli RV ECE302Fall2008sanghavi (New page: Example from class on 11/7/08 X is a bernoulli RV with Pr[x=1]=p (unknown) N samples xi...xn <math> p_{ML} = \frac{\sum_i xi}{n} </math> <math> E[p_{ML}]=p </math> <math> Var(p_{ML})=...)
- 16:26, 10 November 2008 (diff | hist) . . (+62) . . Main Page ECE302Fall2008sanghavi (→Helpful Examples)
- 07:46, 7 November 2008 (diff | hist) . . (+51) . . Emily Blount: Sampling Theorem ECE301Fall2008mboutin (→Sampling Theorem) (current)
- 07:46, 7 November 2008 (diff | hist) . . (+400) . . N Emily Blount: Sampling Theorem ECE301Fall2008mboutin (New page: ==Sampling Theorem== (Test question to state in your own words!) Let <math>\omega_m</math> be a non-negative number. Let x(t) be a signal with <math>X(\omega)=0</math> when <math>|\omega...)
- 07:04, 7 November 2008 (diff | hist) . . (+59) . . Homework 8 ECE301Fall2008mboutin
- 07:02, 7 November 2008 (diff | hist) . . (+64) . . Main Page ECE301Fall2008mboutin (→Homework Related Stuff)
- 19:13, 3 November 2008 (diff | hist) . . (+395) . . N ML Estimate for Exponential RV ECE302Fall2008sanghavi (New page: X is exponential RV with unknown parameter lambda, which we want to find. Sample X=x <math>f_X(x;\lambda)=\lambda e^{-\lambda x}</math> Therefore: <math>\lambda^{hat}_{ML}=max(\lambda...)
- 19:05, 3 November 2008 (diff | hist) . . (+60) . . Main Page ECE302Fall2008sanghavi (→Helpful Examples)
- 18:11, 24 October 2008 (diff | hist) . . (+822) . . N Emily Blount: DT and CT frequency response for systems characterized by Linear, Constant coefficients, Difference Equations ECE301Fall2008mboutin (New page: ==CT Frequency Response== First the system: <math>\sum_{k=0}^{N}a_k\frac{d^ky(t)}{dk^t}=\sum_{k=0}^{M}b_k\frac{d^kx(t)}{dt^k}</math> Then the Fourier Transform: <math>\sum_{k=0}^Na_k(j...) (current)
- 17:48, 24 October 2008 (diff | hist) . . (+152) . . Homework 7 ECE301Fall2008mboutin
- 18:07, 21 October 2008 (diff | hist) . . (+41) . . Cheat2 ECE302Fall2008sanghavi
- 18:01, 21 October 2008 (diff | hist) . . (+220) . . Cheat2 ECE302Fall2008sanghavi
- 04:18, 17 October 2008 (diff | hist) . . (+282) . . N Example finding covariance of coin flips, Lec 10/15 ECE302Fall2008sanghavi (New page: n coin flips, X = # of heads, Y = # of tails Cov(X,Y) = ? X + Y = n E[X]+E[y] = n Therefore: X-E[X] + y-E[Y] = 0 X-E[X]= -(y-E[Y]) <math>Cov(X,Y)=-E[[X-E[X]]^2]=-Var(X)=-Var(Y)</m...)
- 04:12, 17 October 2008 (diff | hist) . . (+81) . . Main Page ECE302Fall2008sanghavi (→Helpful Examples)
- 17:26, 15 October 2008 (diff | hist) . . (+596) . . N HW6.3 Emily Blount ECE301Fall2008mboutin (New page: Question 1 was the hardest one for me. I knew there was a trick, but I just couldn't remember how to do it. ==Question 1== Is the signal <math>x(t)=\sum_{k=-\infty}^{\infty} \frac{1}{(t...) (current)
- 17:17, 15 October 2008 (diff | hist) . . (+47) . . Homework 6 ECE301Fall2008mboutin (→Test Answers/Corrections)
- 17:16, 15 October 2008 (diff | hist) . . (-70) . . CT Differentiation in Frequency ECE301Fall2008mboutin (current)
- 17:15, 15 October 2008 (diff | hist) . . (+36) . . Table of Formulas and Properties ECE301Fall2008mboutin (→CT Fourier Transform Properties)
- 17:15, 15 October 2008 (diff | hist) . . (+70) . . CT Differentiation in Frequency ECE301Fall2008mboutin
- 17:14, 15 October 2008 (diff | hist) . . (+58) . . N CT Differentiation in Frequency ECE301Fall2008mboutin (New page: <math>tx(t)\rightarrow j\frac{d}{d\omega}X(j\omega)</math>)
- 17:10, 15 October 2008 (diff | hist) . . (+59) . . Table of Formulas and Properties ECE301Fall2008mboutin (→CT Fourier Transform Properties)
- 17:09, 15 October 2008 (diff | hist) . . (-41) . . Table of Formulas and Properties ECE301Fall2008mboutin (→CT Fourier Transform Properties)
- 17:08, 15 October 2008 (diff | hist) . . (+41) . . Table of Formulas and Properties ECE301Fall2008mboutin (→CT Fourier Transform Properties)
- 08:52, 27 September 2008 (diff | hist) . . (+179) . . HW4.4 ~Emily Blount ECE301Fall2008mboutin (current)
- 08:32, 27 September 2008 (diff | hist) . . (0) . . HW4.1 Emily Blount ECE301Fall2008mboutin
- 11:15, 26 September 2008 (diff | hist) . . (+3) . . Cheat1 ECE302Fall2008sanghavi
- 11:14, 26 September 2008 (diff | hist) . . (+150) . . Cheat1 ECE302Fall2008sanghavi
- 11:09, 26 September 2008 (diff | hist) . . (0) . . Cheat1 ECE302Fall2008sanghavi
- 11:08, 26 September 2008 (diff | hist) . . (-42) . . Cheat1 ECE302Fall2008sanghavi
- 11:06, 26 September 2008 (diff | hist) . . (+154) . . Cheat1 ECE302Fall2008sanghavi
- 11:03, 26 September 2008 (diff | hist) . . (+895) . . Cheat1 ECE302Fall2008sanghavi
- 10:39, 25 September 2008 (diff | hist) . . (+17) . . HW4.5 Emily Blount ECE301Fall2008mboutin (current)
- 10:36, 25 September 2008 (diff | hist) . . (+573) . . N HW4.5 Emily Blount ECE301Fall2008mboutin (New page: == Guess the signal == 1. DT signal x[n] is even. 2. X[n] has a period of 2. 3. <math>\sum_{n=0}^{1}x[n]=3</math> 4. <math>\sum_{n=0}^{1}(-1)^nx[n]=5</math> == Answer == From 2. w...)
- 10:25, 25 September 2008 (diff | hist) . . (+47) . . Homework 4 ECE301Fall2008mboutin (→Guess the Periodic Signal)
- 10:24, 25 September 2008 (diff | hist) . . (+50) . . HW4.4 ~Emily Blount ECE301Fall2008mboutin
- 09:51, 25 September 2008 (diff | hist) . . (+219) . . HW4.4 ~Emily Blount ECE301Fall2008mboutin
- 09:31, 25 September 2008 (diff | hist) . . (+104) . . HW4.4 ~Emily Blount ECE301Fall2008mboutin
- 09:01, 25 September 2008 (diff | hist) . . (+285) . . HW4.4 ~Emily Blount ECE301Fall2008mboutin
- 08:48, 25 September 2008 (diff | hist) . . (0) . . HW4.1 Emily Blount ECE301Fall2008mboutin
- 14:44, 23 September 2008 (diff | hist) . . (+28) . . N HW4.4 ~Emily Blount ECE301Fall2008mboutin (New page: == Define a DT LTI System ==)
- 14:28, 23 September 2008 (diff | hist) . . (+48) . . Homework 4 ECE301Fall2008mboutin (→Define a DT, LTI System)
- 14:27, 23 September 2008 (diff | hist) . . (+49) . . HW4.1 Emily Blount ECE301Fall2008mboutin
- 14:25, 23 September 2008 (diff | hist) . . (+572) . . HW4.1 Emily Blount ECE301Fall2008mboutin
- 14:04, 23 September 2008 (diff | hist) . . (+117) . . HW4.1 Emily Blount ECE301Fall2008mboutin
- 14:01, 23 September 2008 (diff | hist) . . (+143) . . HW4.1 Emily Blount ECE301Fall2008mboutin
- 13:54, 23 September 2008 (diff | hist) . . (+262) . . HW4.1 Emily Blount ECE301Fall2008mboutin
- 13:37, 23 September 2008 (diff | hist) . . (+224) . . HW4.1 Emily Blount ECE301Fall2008mboutin
- 13:29, 23 September 2008 (diff | hist) . . (+19) . . N HW4.1 Emily Blount ECE301Fall2008mboutin (New page: == Chosen Signal ==)
- 13:20, 23 September 2008 (diff | hist) . . (+47) . . Homework 4 ECE301Fall2008mboutin (→Periodic CT Signal, Fourier Series Coefficients)
- 18:12, 19 September 2008 (diff | hist) . . (+330) . . N HW3.C Emily Blount ECE301Fall2008mboutin (New page: 1. Bob can decrypt the message by inverting the secret matrix that Alice is using and multiplying it to the encrypted vector. 2. Yes, she can do it by using linearity. Since she has a me...) (current)
- 18:00, 19 September 2008 (diff | hist) . . (+47) . . Homework 3 ECE301Fall2008mboutin (→Application of linearity)
- 17:57, 19 September 2008 (diff | hist) . . (+152) . . N 3.B Emily Blount ECE301Fall2008mboutin (New page: Answer: tcos(2t) If you want the solution, I completely agree with Brian Thomas, and so I will not just copy and paste, but instead give credit to him.) (current)
- 17:54, 19 September 2008 (diff | hist) . . (+118) . . Talk:HW3.B Brian Thomas ECE301Fall2008mboutin (current)
- 17:46, 19 September 2008 (diff | hist) . . (+8) . . Talk:HW3.A Jack Williams - Causality of Systems ECE301Fall2008mboutin (current)
- 17:44, 19 September 2008 (diff | hist) . . (+274) . . Talk:HW3.A Jack Williams - Causality of Systems ECE301Fall2008mboutin
- 17:40, 19 September 2008 (diff | hist) . . (+469) . . Talk:HW3.A Brian Thomas ECE301Fall2008mboutin (current)
- 17:36, 19 September 2008 (diff | hist) . . (+346) . . Talk:HW3.A Virgil Hsieh ECE301Fall2008mboutin (current)
- 17:25, 19 September 2008 (diff | hist) . . (+363) . . N 3.A Emily Blount ECE301Fall2008mboutin (New page: == Time Invariant == A system is time invariant if for a given input signal x(t) into the system gives y(t) then also for a given input signal x(t-to), for to as a real number, the output...)
- 17:03, 19 September 2008 (diff | hist) . . (+45) . . Homework 3 ECE301Fall2008mboutin (→The basics of linearity)
- 17:02, 19 September 2008 (diff | hist) . . (+45) . . Homework 3 ECE301Fall2008mboutin (→Understanding System’s Properties)
- 07:55, 17 September 2008 (diff | hist) . . (+37) . . HW3.1.b Emily Blount ECE302Fall2008sanghavi (current)
- 07:54, 17 September 2008 (diff | hist) . . (-38) . . HW3.1.b Emily Blount ECE302Fall2008sanghavi
- 07:54, 17 September 2008 (diff | hist) . . (+51) . . HW3.1.b Emily Blount ECE302Fall2008sanghavi
- 07:54, 17 September 2008 (diff | hist) . . (+240) . . N HW3.1.b Emily Blount ECE302Fall2008sanghavi (New page: Once the game show host has opened one door to show a goat, then this problem is exactly like the original Monty Hall problem. There is still a goat, and a car, left behind the doors, the...)
- 07:52, 17 September 2008 (diff | hist) . . (+49) . . Homework3 ECE302Fall2008sanghavi (→Problem 1: Monte Hall, twisted)
- 11:19, 11 September 2008 (diff | hist) . . (+52) . . HW2-E Emily Blount ECE301Fall2008mboutin (current)
- 11:17, 11 September 2008 (diff | hist) . . (+533) . . N HW2-E Emily Blount ECE301Fall2008mboutin (New page: ==Part A== It seems like this system that creates Y_k_[n]=(k+1)^2 d[n-(k+1)] from X_k_[n]=d[n-k] is not time invariant because at each k, the system creates a squared amplitude change in ...)
- 11:03, 11 September 2008 (diff | hist) . . (+12) . . HW2-D Emily Blount ECE301Fall2008mboutin (current)
- 11:01, 11 September 2008 (diff | hist) . . (+819) . . N HW2-D Emily Blount ECE301Fall2008mboutin (New page: A time invariant system is a system that for any x(t) that goes into the system and has an output y(t) has the same response as a shifted input x(t-T) which has an output of the system of ...)
- 10:42, 11 September 2008 (diff | hist) . . (+12) . . HW2-C Emily Blount ECE301Fall2008mboutin (current)
- 10:39, 11 September 2008 (diff | hist) . . (+460) . . HW2-C Emily Blount ECE301Fall2008mboutin
- 10:24, 11 September 2008 (diff | hist) . . (+349) . . HW2-C Emily Blount ECE301Fall2008mboutin
- 10:06, 11 September 2008 (diff | hist) . . (+52) . . HW2-C Emily Blount ECE301Fall2008mboutin
- 10:06, 11 September 2008 (diff | hist) . . (+12) . . HW2-C Emily Blount ECE301Fall2008mboutin
- 10:05, 11 September 2008 (diff | hist) . . (+654) . . N HW2-C Emily Blount ECE301Fall2008mboutin (New page: A Linear system is a system that makes the result of 1. and 2. equal. 1. For any function x1(t) that goes into the system and is multiplied by A is added to a function x2(t) that goes into...)
- 09:55, 11 September 2008 (diff | hist) . . (-34) . . HW2-B Emily Blount ECE301Fall2008mboutin (current)
- 09:54, 11 September 2008 (diff | hist) . . (+324) . . HW2-B Emily Blount ECE301Fall2008mboutin
- 09:50, 11 September 2008 (diff | hist) . . (+52) . . HW2-B Emily Blount ECE301Fall2008mboutin
- 09:49, 11 September 2008 (diff | hist) . . (+119) . . N HW2-B Emily Blount ECE301Fall2008mboutin (New page: The bug is the fact that it isn't sampling enough times to plot a decent graph. Therefore change the code such that...)
- 09:46, 11 September 2008 (diff | hist) . . (+318) . . HW2-A Emily Blount ECE301Fall2008mboutin (current)
- 09:46, 11 September 2008 (diff | hist) . . (-20) . . File:Repeated non periodic signal ECE301Fall2008mboutin.JPG
- 09:28, 11 September 2008 (diff | hist) . . (+88) . . HW2-A Emily Blount ECE301Fall2008mboutin
- 09:26, 11 September 2008 (diff | hist) . . (+58) . . HW2-A Emily Blount ECE301Fall2008mboutin
- 09:25, 11 September 2008 (diff | hist) . . (+246) . . HW2-A Emily Blount ECE301Fall2008mboutin
- 09:24, 11 September 2008 (diff | hist) . . (-20) . . File:Non periodic DT signal - hw2 ECE301Fall2008mboutin.JPG
- 09:09, 11 September 2008 (diff | hist) . . (+453) . . N HW2-A Emily Blount ECE301Fall2008mboutin (New page: A CT signal posted on Homework 1 was: x(t) = sin(t) == Periodic Signal == The New DT Signal: x[n] = sin[n] So taking that signal and making it a periodic DT signal by sampling at frequenc...)
- 09:07, 11 September 2008 (diff | hist) . . (-20) . . File:Periodic DT signal - hw2 ECE301Fall2008mboutin.JPG
- 08:55, 11 September 2008 (diff | hist) . . (+235) . . Homework 2 ECE301Fall2008mboutin
- 05:38, 10 September 2008 (diff | hist) . . (+198) . . N HW2.3 Emily Blount ECE302Fall2008sanghavi (New page: I like to think of it like the Monty Hall problem. Once we know we have a red side, there are only 2 red sides left. So then, what's the chance that one of them is on the back of your ch...) (current)
- 05:36, 10 September 2008 (diff | hist) . . (+47) . . Homework2 ECE302Fall2008sanghavi (→Problem 3: Trick Cards)
- 16:32, 5 September 2008 (diff | hist) . . (+995) . . HW1.1 Emily Blount ECE301Fall2008mboutin
- 16:30, 5 September 2008 (diff | hist) . . (-982) . . HW1.1 Emily Blount ECE301Fall2008mboutin (Removing all content from page)
- 16:30, 5 September 2008 (diff | hist) . . (+982) . . N HW1.1 Emily Blount ECE301Fall2008mboutin (New page: %Emily Blount %Homework 1 %September 4, 2008 %ECE 301, Mimi Boutin %clear memory and console clear; clc; %Part a: Playing Twinkle Twinkle Little Star (since I don't know Hail Purdue.) %...)
- 16:29, 5 September 2008 (diff | hist) . . (+47) . . Homework 1 ECE301Fall2008mboutin (→Playing Music)
- 14:45, 5 September 2008 (diff | hist) . . (+532) . . HW1.5 Emily Blount - Energy and Average Power of sin(x) ECE301Fall2008mboutin (current)
- 14:32, 5 September 2008 (diff | hist) . . (+473) . . N HW1.5 Emily Blount - Energy and Average Power of sin(x) ECE301Fall2008mboutin (New page: The signal is f(t) = sin(t) and t1=0 and t2=2pi == Energy of sin(t) == The energy expended from t1 to t2 is: <math>E=\int_{t0}^{t2}{|f(t)|^2dt}</math> Therefore for our signal: <mat...)
- 14:19, 5 September 2008 (diff | hist) . . (+84) . . Homework 1 ECE301Fall2008mboutin
- 14:15, 5 September 2008 (diff | hist) . . (+46) . . HW1.4 Emily Blount ECE301Fall2008mboutin (→Non periodic Function)
- 14:14, 5 September 2008 (diff | hist) . . (+13) . . File:Function ECE301Fall2008mboutin.JPG (The function f(x)=2x+1 and f(x-6))
- 14:08, 5 September 2008 (diff | hist) . . (+48) . . HW1.4 Emily Blount ECE301Fall2008mboutin (→Periodic Function)
- 14:08, 5 September 2008 (diff | hist) . . (0) . . File:Function sin ECE301Fall2008mboutin.JPG (The function sin(x).)
- 11:23, 5 September 2008 (diff | hist) . . (+400) . . N HW1.4 Emily Blount ECE301Fall2008mboutin (New page: == Periodic Function == A function is periodic if there exists a T>0 such that x(t + T) = x(t). Therefore the function sin(x) is periodic because there exists a T = 2pi such that sin(t+ ...)
- 11:08, 5 September 2008 (diff | hist) . . (+47) . . Homework 1 ECE301Fall2008mboutin (→Periodic and Non-Periodic Functions)
- 11:06, 5 September 2008 (diff | hist) . . (+956) . . HW1.3 Emily Blount - Complex Number Basics ECE301Fall2008mboutin
- 10:46, 5 September 2008 (diff | hist) . . (+7) . . HW1.3 Emily Blount - Complex Number Basics ECE301Fall2008mboutin (→Complex plane)
- 10:44, 5 September 2008 (diff | hist) . . (+30) . . File:Complex Plane2 ECE301Fall2008mboutin.JPG (A complex number represented on the complex plane.)
- 09:05, 5 September 2008 (diff | hist) . . (+295) . . N HW1.3 Emily Blount - Complex Number Basics ECE301Fall2008mboutin (New page: I have the worst problem remembering Euler's Formula and working with it. First here is the formula: == Euler's Formula == :<math> \,\mathrm{e}^{j x} = (\cos x + j\sin x )\,</math> Then...)
- 08:54, 5 September 2008 (diff | hist) . . (+71) . . Homework 1 ECE301Fall2008mboutin