Recent content by hxluo

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In anyone minute interval, the number of requests for a popular web page is a poisson random variable with expected value 300 requests. a) a web server has a capacity of C requests per minute. if the number of requests in a one minute interval is greater than C, the server is overloaded. Use...

Consider a discrete-time LTI system with transfer function H(z) =(1-3z^-1) / ( 2-z^-1) (a) Sketch the pole-zero plot of H(z). (b) Suppose the system is stable. Determine all possible regions of convergence (ROC) for H(z) under this condition, or state that none exists. (c) Repeat part (b)...

Random variables X and Y have the joint PMF PX,Y(x,y) = c|x+y| x=-2,0,2; y=-1,0,1. 0 otherwise 1) what is the value of constant c? 2)what is P[Y<X]? 3)What is P[Y>X]? 4)what is P[Y=X]? 5)what is P[X<1]?

yes, i learned it before, so is it correct to say H(jw)= -w?

i just don't understand the concept of interpolation that much.

nothing much in the graph, just a straight line from (-1, 2j) to (1, -2j)

yes you are right, so how do i solve this problem?

what is the impact of the temperature on the characteristics of NMOS transistors?

please help, i don't understand what the question is asking, please click on the thumbnail for the question.

A causal LTI filter has the frequency response H(jw) shown in the graph. For each of these input signals, determine the filtered output signal y(t). 1) x(t)=exp(jt) 2) x(t)=(sin(wt))u(t) 3) X(jw)= 1 / ((jw)(6+jw)) 4) X(jw)= 1 / (2+jw) I don't understand what I have to do to find...