GNU Radio 3.6.5 C++ API

digital_correlate_access_code_bb Class Reference

Examine input for specified access code, one bit at a time. More...

#include <digital_correlate_access_code_bb.h>

Inheritance diagram for digital_correlate_access_code_bb:
gr_sync_block gr_block gr_basic_block gr_msg_accepter gruel::msg_accepter

List of all members.

Public Member Functions

 ~digital_correlate_access_code_bb ()
int work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
 just like gr_block::general_work, only this arranges to call consume_each for you
bool set_access_code (const std::string &access_code)

Protected Member Functions

 digital_correlate_access_code_bb (const std::string &access_code, int threshold)

Friends

DIGITAL_API
digital_correlate_access_code_bb_sptr 
digital_make_correlate_access_code_bb (const std::string &access_code, int threshold)

Detailed Description

Examine input for specified access code, one bit at a time.

input: stream of bits, 1 bit per input byte (data in LSB) output: stream of bits, 2 bits per output byte (data in LSB, flag in next higher bit)

Each output byte contains two valid bits, the data bit, and the flag bit. The LSB (bit 0) is the data bit, and is the original input data, delayed 64 bits. Bit 1 is the flag bit and is 1 if the corresponding data bit is the first data bit following the access code. Otherwise the flag bit is 0.


Constructor & Destructor Documentation

digital_correlate_access_code_bb::digital_correlate_access_code_bb ( const std::string &  access_code,
int  threshold 
) [protected]
digital_correlate_access_code_bb::~digital_correlate_access_code_bb ( )

Member Function Documentation

bool digital_correlate_access_code_bb::set_access_code ( const std::string &  access_code)
Parameters:
access_codeis represented with 1 byte per bit, e.g., "010101010111000100"
int digital_correlate_access_code_bb::work ( int  noutput_items,
gr_vector_const_void_star input_items,
gr_vector_void_star output_items 
) [virtual]

just like gr_block::general_work, only this arranges to call consume_each for you

The user must override work to define the signal processing code

Implements gr_sync_block.


Friends And Related Function Documentation

DIGITAL_API digital_correlate_access_code_bb_sptr digital_make_correlate_access_code_bb ( const std::string &  access_code,
int  threshold 
) [friend]
Parameters:
access_codeis represented with 1 byte per bit, e.g., "010101010111000100"
thresholdmaximum number of bits that may be wrong

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