The Ohio State University
Department of Electrical and Computer Engineering
Winter 2011
ECE 352
Problem set 2
Review of Discrete Time systems: ECE 351
Problem 1
(10)
Sally and Baines, a modern couple, start to work in January  time k=0.
Their income was zero the previous six month. Their income is steady
and constant for 0<= k <= infinity. Their income is u(k)  the
unit step. The unit, whether it is 5'000 K$, or 10'000 K$ is not known.
Let x(k) be their monthly income.
Their spending strategy is to spend in month k the average
of their income over the past seven month, i.e.
y(k)= (1/7)* [ x(k)+x(k1)+
......
+x(k6)]
1.1 Tabulate their spending y(k) for 0 <= k <= 10
1.2 Plot their spending function y(k) versus k.
1.3 Are they overspending or underspending? Why? Explain.
Problem 2
(10)
Jose and Mria, start to work in January  time k=0.
Their income was zero the previous year. Their income is steady
and constant for 0<= k <= infinity. Their income is u(k)  the
unit step. The unit, whether it is 5'000 K$, or 10'000 K$ is not known.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '09
 clymer
 UCI race classifications, Tour de Georgia, Sally, Jose, Baines

Click to edit the document details