SPUC::dqpsk Class Reference
[SPUC non-template classes, Communication classes And functions]

Differential QPSK encoder/decoder. More...

#include <dqpsk.h>

List of all members.

Public Member Functions
	dqpsk ()
complex< long >	encode (complex< long > c)
complex< long >	decode (complex< long > c)
complex< long >	convbits (int sym)
int	qpsk_sym (complex< long > c)
Public Attributes
int **	datbase
int	previous_encoded_symbol
int	previous_decoded_symbol

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Detailed Description

Differential QPSK encoder/decoder.

Encode/Decode the input bits into quaternary qpsk format

Author:

Tony Kirke

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Constructor & Destructor Documentation

SPUC::dqpsk::dqpsk

(

)

Differential encoding/decoding of QPSK Encode/Decode the input bits into quaternary qpsk format

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Member Function Documentation

complex< long > SPUC::dqpsk::convbits

(

int

sym

)

Convert integer symbol (0-3) back to binary pair

complex< long > SPUC::dqpsk::decode

(

complex< long >

c

)

Differential decoder

complex< long > SPUC::dqpsk::encode

(

complex< long >

c

)

Call qpsk_sym to get equivalent symbol value (0-3) of current input bit pair Get current output symbol (0-3) from encoding data base[curr symbol][prev encoded symbol] Call convbits to convert current encoded symbol to bit pair Previous encoded symbol = current encoded symbol

int SPUC::dqpsk::qpsk_sym

(

complex< long >

c

)

Encode bit pair into integer value from 0 to 3 and return symbol

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Member Data Documentation

int** SPUC::dqpsk::datbase

int SPUC::dqpsk::previous_decoded_symbol

int SPUC::dqpsk::previous_encoded_symbol

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

• dqpsk.h
• dqpsk.cpp

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