{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Matlab+Lab1++Solutions

# Matlab+Lab1++Solutions - -Period = plot tt4 xx4 Period.02...

This preview shows pages 1–3. Sign up to view the full content.

Matlab Solutions: 4.2.1: Function: syn_sin function [xx,tt] = syn_sin(fk, Xk, fs, dur, tstart) %SYN_SIN Function to synthesize a sum of cosine waves % usage: % [xx,tt] = syn_sin(fk, Xk, fs, dur, tstart) % fk = vector of frequencies % (these could be negative or positive) % Xk = vector of complex amplitudes: Amp*eˆ(j*phase) % fs = the number of samples per second for the time axis % dur = total time duration of the signal % tstart = starting time (default is zero, if you make this input optional) % xx = vector of sinusoidal values % tt = vector of times, for the time axis % % Note: fk and Xk must be the same length. % Xk(1) corresponds to frequency fk(1), % Xk(2) corresponds to frequency fk(2), etc. n=length(fk); xx=0; tt = tstart:1/fs:dur; for k=1:n xx=xx+real(Xk(k)*exp(1i*2*pi*fk(k)*tt)); end Tesing: [xx4,tt4] = syn_sin([0,100,250], [10,14*exp(-j*pi/3),8*j], 10000, 0.1,0);

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.

Unformatted text preview: %-Period = ? plot( tt4, xx4) Period : .02 Frequency: 50 5: Testing code: [xx4,tt4] = syn_sin([.5,.5,.5,.5], [2,2*exp(-j*pi*1.25),1,-j], 2000, 6,-.5); plot(tt4,xx4); 6: %--%--- multipath for Lab #2 %--c = 3e8; xv = 0:0.1:300; %-- vehicle locations in meters dt = 1500; %-- location of the transmitter dr = [100,900]; %-- location of the reflector G_r = 1; %-- gain of the reflector phi_r = pi; %-- phase of the reflector fo = 150e6; %-- in Hz lambda = c/fo % Rtv = abs(xv+j*dt); %-- range between xmtr and vehicle zr = dr*[1;j]; Rrefv = abs(xv-zr) + abs(j*dt-zr); %-- range between xmtr, refl and veh % delay_1 = Rtv/c; delay_2 = Rrefv/c; % X_1 = exp(-j*2*pi*fo*delay_1); X_2 = G_r*exp(j*phi_r)*exp(-j*2*pi*fo*delay_2); X_v = X_1 + X_2; % plot( xv, abs(X_v) ) shg...
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern