A=1/sqrt(2);                            % Define the bandwidth smoothing constant
samples = 32;                           % Define how much we're oversampling
t = -pi/2 : pi / (samples - 1) : pi / 2;% Define a time vector for a symbol
middle = samples/2;                     % Define end of first half of symbol
next = middle+1;                        % Define start of second half of symbol
last = samples;                         % Define end of second half of symbol
%
% Waveform 0 is a flat line at A
%
s0(1:last) = A;
%
% Waveform 1 starts out flat, then curves up
%
s1(1:middle) = A;
s1(next:last) = 1-(1-A)*cos(t(next:last)).*cos(t(next:last));
%
% Waveform 2 Curves down, then is flat
%
s2(1:middle)=1-(1-A)*cos(t(1:middle)).*cos(t(1:middle));
s2(next:last)=A;
%
% Waveform 3 Starts at 1, curves down to A, then curves back up to 1
%
s3(1:last)=1-(1-A)*cos(t).*cos(t);
%
% Waveform 4 is an S-curve from -A to +A
%
s4(1:middle)=sin(t(1:middle))+(1-A)*sin(t(1:middle)).*sin(t(1:middle));
s4(next:last)=sin(t(next:last))-(1-A)*sin(t(next:last)).*sin(t(next:last));
%
% Waveform 5 is an S-curve from -A to +1
%
s5(1:middle)=sin(t(1:middle))+(1-A)*sin(t(1:middle)).*sin(t(1:middle));
s5(next:last)=sin(t(next:last));
%
% Waveform 6 is an S-curve from -1 to +A
%
s6(1:middle)=sin(t(1:middle));
s6(next:last)=sin(t(next:last))-(1-A)*sin(t(next:last)).*sin(t(next:last));
%
% Waveform 7 is an S-curve from -1 to +1
%
s7(1:last)=sin(t);
%
% Waveforms 8-15 are simply the negative versions of waveforms 0-7 (in other
% words, they slope downwards instead of upwards, and vice versa.
%
s8=-s0;
s9=-s1;
s10=-s2;
s11=-s3;
s12=-s4;
s13=-s5;
s14=-s6;
s15=-s7;
%
% Display the resulting waveforms one at a time, waiting for a key or a
% button click after showing each plot.
*
plot(s0); drawnow; waitforbuttonpress;
plot(s1); drawnow; waitforbuttonpress;
plot(s2); drawnow; waitforbuttonpress;
plot(s3); drawnow; waitforbuttonpress;
plot(s4); drawnow; waitforbuttonpress;
plot(s5); drawnow; waitforbuttonpress;
plot(s6); drawnow; waitforbuttonpress;
plot(s7); drawnow; waitforbuttonpress;
plot(s8); drawnow; waitforbuttonpress;
plot(s9); drawnow; waitforbuttonpress;
plot(s10); drawnow; waitforbuttonpress;
plot(s11); drawnow; waitforbuttonpress;
plot(s12); drawnow; waitforbuttonpress;
plot(s13); drawnow; waitforbuttonpress;
plot(s14); drawnow; waitforbuttonpress;
plot(s15);