PatternGenerator_v1 Class Reference

Pattern generator class implementation. More...

Inherits unit.

Public Member Functions
function	PatternGenerator_v1 (in param)
	Class constructor. More...
function	traverse (in obj)
	Setting parameters to object.
Public Member Functions inherited from unit
virtual	traverse (in obj, in varargin)
	Main function call.
function	traverseNode (in obj)
	Set unique ID when creating a unit. More...
function	connectOutput (in obj, in uobj, in unitOutput, in nextUnitInput)
	Specify where signal should go next. More...
function	connectOutputs (in obj, in units, in destInputs)
	Specify where signal should go next. More...
function	writeInputBuffer (in obj, in sig, in inputId)
	write input buffer
function	horzcat (in varargin)
	horizontal concatenation
function	vertcat (in varargin)
	vertical concatenation
function	setparams (in obj, in params, in REQUIRED_PARAMS, in QUIET_PARAMS)
	set parameters More...
function	view (in obj)
	Show interactive GUI through unit_view-class.

Static Public Member Functions
static function	gen_prbs_v1 (in order, in seed, in lengthSequence)
static function	gen_random_pattern_v1 (in probability, in lines, in lengthSequence)

Public Attributes
Property	nInputs
	Number of inputs.
Property	nOutputs
	Number of outputs.
Property	PRBSOrder
	PRBS order.
Property	M
	Modulation Order.
Property	N
	Number of Modes (or polarizations)
Property	lengthSequence
	Output sequence length.
Property	seed
	seeds for PRBS
Property	typePattern
	Type of pattern.
Property	probZero
	Probability of zeros ('0')
Constant Property	allowedPRBSOrders = [7 15 23 31]
Public Attributes inherited from unit
Property	inputBuffer
	Buffer for storing inputs as we traverse the graph.
Property	nextNodes
	Children nodes.
Property	destInputs
	Destination inputs in children.
Property	results
	For storing results.
Property	label
Property	draw
	enable/disable plotting
Property	nInputs
	Number of signals traverse expects.
Property	nOutputs
	Number of outputs traverse expects.

Detailed Description

Pattern generator class implementation.

Outputs a random bit sequence with length "lengthSequence", using pseudorandom bit sequences "PRBS" or Bernoulli distributed sequences "Random".

Observations

1. If you define the Pattern type as PRBS, the sequence will be generated according to the following polynomials:

• (Order=7) = x^7 + x^6 + 1
• (Order=15) = x^15 + x^14 + 1
• (Order=23) = x^23 + x^18 + 1
• (Order=31) = x^31 + x^28 + 1

1. If you define the Pattern type as Random, the sequence will be generated randomly using randi() function.

Example

% Here we put a FULLY WORKING example using the MINIMUM set of required parameters
param.pg.M = 2;
pg = PatternGenerator_v1(param.pg);
sigOut = pg.traverse();

Advanced Example

% Here we put a FULLY WORKING example using the MAXIMUM set of required parameters
param.pg.M = 4;
param.pg.typePattern = 'PRBS';
param.pg.PRBSOrder = 31;
param.pg.seed = [100 200]
pg = PatternGenerator_v1(param.pg);
sigOut = pg.traverse();

OR

%>

% Here ANOTHER FULLY WORKING example using the MAXIMUM set of required parameters
param.pg.M = 4;
param.pg.typePattern = 'Random';
param.pg.probZero = 0.4;
pg = PatternGenerator_v1(param.pg);
sigOut = pg.traverse();

Author

jcesardiniz

Version

2

Definition at line 56 of file PatternGenerator_v1.m.

Constructor & Destructor Documentation

function PatternGenerator_v1::PatternGenerator_v1

(

in

param

)

Class constructor.

Constructs an object of type pattern generator

Parameters

param.lengthSequence	LengthSequence - Output sequence lenghts [symbols].
param.Rs	Rs - Symbol rate
param.typePattern	TypePattern - Type of Pattern. Can be "PRBS" or "Random".
param.PRBSOrder	PRBSOrder - Polynomial order if typePattern set to "PRBS" (7, 15, 23, 31).
param.seed	Seed - Seeds for "PRBS" signal. Should be a vector. Cannot be zero.
param.probZero	ProbZero - Probability of zeros if typePattern set to "Random".

Return values

obj	An instance of the class PatternGenerator_v1

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The documentation for this class was generated from the following file:

• library/tx/PatternGenerator_v1.m