How to set the matrix of the .mat file to double or other types?

I try to use fmincon with options being

M = 2;
DC = false;
pulse = load('PCB1.mat');
[pdaeye,th] = pulse2pda(pulse,100000,M,DC);
figure
t = th*SymbolTime*1e12;
plot(t,pdaeye)
legend('Upper PDA eye','Lower PDA eye')
xlabel('ps')
ylabel('V')
title('Peak Distortion Analysis Eye')
grid on

and this is the error I get:

Error using pulse2pda
Expected P to be one of these types:

double, single, uint8, uint16, uint32, uint64, int8, int16, int32, int64

Instead its type was struct.

Error in pulse2pda (line 60)
validateattributes(P,{'numeric'},{'2d','finite','real'},fcnName,'P');

Error in pda001 (line 4)
[pdaeye,th] = pulse2pda(pulse,100000,M,DC);

Answer 1

[madhan ravi]

[pdaeye,th] = pulse2pda(pulse.pulse,100000,M,DC);

[Ariel]

sorry, i don't understand....qq

Reference to non-existent field 'pulse'.

Error in pda001 (line 4)
[pdaeye,th] = pulse2pda(pulse.pulse,100000,M,DC);

[madhan ravi]

.pulse is the variable that you want to feed into the pulse2pda(...) function.

[Ariel]

i tried my code to this...

M = 2;
DC = false;
pulse = load('test1.mat');
[pdaeye,th] = pulse2pda(pulse.pulse,100000,M,DC);
figure
t = th*SymbolTime*1e12;
plot(t,pdaeye)
legend('Upper PDA eye','Lower PDA eye')
xlabel('ps')
ylabel('V')
title('Peak Distortion Analysis Eye')
grid on

is it right?

[madhan ravi]

Without seeing the screenshot of the contents of pulse struct how do I know?

[Ariel]

haha sorry i think i know what you say~ it has been solved.

now code is

M = 2;
DC = false;
pulse = load('test1.mat');
[pdaeye,th] = pulse2pda(pulse.Vout',500,M,DC);
figure
t = th*SymbolTime*1e12;
plot(t,pdaeye)
legend('Upper PDA eye','Lower PDA eye')
xlabel('ps')
ylabel('V')
title('Peak Distortion Analysis Eye')
grid on

and this is the error I get:

Error using pulseRecoverClock (line 98)
Hula hoop clock recovery algorithm of pulse response failed.  Pulse response may be corrupted.

Error in serdes.utilities.shiftPulse (line 11)
nclockA = pulseRecoverClock( pulse(:,1), samplesPerSymbol );

Error in pulse2pda (line 86)
[P, cursorNdx]=serdes.utilities.shiftPulse(P,N);

Error in pda001 (line 4)
[pdaeye,th] = pulse2pda(pulse.Vout',500,M,DC);
 

how can i do.......

[madhan ravi]

[pdaeye,th] = pulse2pda(pulse.Vout(:), 500, M, DC);

[Ariel]

Error using pulseRecoverClock (line 98)
Hula hoop clock recovery algorithm of pulse response failed.  Pulse response may be corrupted.

Error in serdes.utilities.shiftPulse (line 11)
nclockA = pulseRecoverClock( pulse(:,1), samplesPerSymbol );

Error in pulse2pda (line 86)
[P, cursorNdx]=serdes.utilities.shiftPulse(P,N);

Error in pda001 (line 4)
[pdaeye,th] = pulse2pda(pulse.Vout(:),500,M,DC);

the error it's same....

Answer 2

[Ajit Kasturi]

I assume that you have structs inside the matrix of your .mat file. If you want some element x which is a double or some other type in the struct, you can directly access by S.x If you want entire structure to be converted into array of some type, there is a function called struct2cell which converts the structure into cell array. You can test with the following example:

S.x = linspace(0,2*pi);

S.y = sin(S.x);

C = struct2cell(S)

For more information refer the following page:

https://www.mathworks.com/help/matlab/ref/struct2cell.html