pulse2pda
Description
Examples
Create Peak Distortion Analysis Eye from Pulse Response
Load the pulse response column matrix from a file.
load('PulseResponseReflective100ps.mat');
Use the nonreturn to zero (NRZ) modulation scheme. Disregard any DC offset present in the pulse response.
M = 2; DC = false;
Calculate and plot the peak distortion analysis (PDA) eye.
[pdaeye,th] = pulse2pda(pulse,SamplesPerSymbol,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
Input Arguments
P
— Pulse response
column matrix
Input pulse response, specified as a column matrix. The first column contains the primary pulse response and the subsequent columns (if any) contain the crosstalk pulse responses.
Data Types: double
N
— Number of samples per symbol
positive integer scalar
Number of samples per symbol, specified as a positive integer scalar.
Data Types: double
M
— Number of modulation levels
positive integer scalar greater than or equal to 2
Number of modulation levels, specified as a positive integer scalar.
M
defines the modulation scheme used in the peak distortion
analysis (PDA) calculation.
If
M
= 2, the modulation scheme is nonreturn to zero (NRZ).If
M
= 4, the modulation scheme is four-level pulse amplitude modulation (PAM4).
Data Types: double
DC
— Determine whether to maintain DC offsets in pulse response
true
| false
Determine whether to maintain the DC offsets in pulse response
P
.
If
DC
is set totrue
, thepulse2pda
function maintains the DC offsets present in the pulse response.If
DC
is set tofalse
, thepulse2pda
function disregards the DC offsets present in the pulse response.
Data Types: double
Output Arguments
E
— Peak distortion analysis eye
vector
Peak distortion analysis (PDA) eye, returned as a vector.
Data Types: double
TH
— Time histogram bin centers
vector
Horizontal time histogram bin centers, returned as a vector.
Data Types: double
D
— Upper pattern of PDA eye limit
vector
Upper pattern of the PDA eye limit, returned as a vector.
Data Types: double
Version History
Introduced in R2020a
See Also
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