GNU Radio 3.7.2git-79-g931a7b07 C++ API
gr::digital::pn_correlator_cc Class Reference

PN code sequential search correlator. More...

#include <pn_correlator_cc.h>

Inheritance diagram for gr::digital::pn_correlator_cc:
gr::sync_decimator gr::sync_block gr::block gr::basic_block gr::msg_accepter gr::messages::msg_accepter

Public Types

typedef boost::shared_ptr
< pn_correlator_cc
sptr
 

Static Public Member Functions

static sptr make (int degree, int mask=0, int seed=1)
 Make PN code sequential search correlator block. More...
 

Additional Inherited Members

- Public Member Functions inherited from gr::sync_decimator
unsigned decimation () const
 
void set_decimation (unsigned decimation)
 
void forecast (int noutput_items, gr_vector_int &ninput_items_required)
 Estimate input requirements given output request. More...
 
int general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
 compute output items from input items More...
 
int fixed_rate_ninput_to_noutput (int ninput)
 Given ninput samples, return number of output samples that will be produced. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this. More...
 
int fixed_rate_noutput_to_ninput (int noutput)
 Given noutput samples, return number of input samples required to produce noutput. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this. More...
 
- Protected Types inherited from gr::basic_block
enum  vcolor { WHITE, GREY, BLACK }
 
- Protected Member Functions inherited from gr::sync_decimator
 sync_decimator (void)
 
 sync_decimator (const std::string &name, gr::io_signature::sptr input_signature, gr::io_signature::sptr output_signature, unsigned decimation)
 
- Protected Attributes inherited from gr::block
std::vector< long > d_max_output_buffer
 
std::vector< long > d_min_output_buffer
 
gr::thread::mutex d_setlock
 
gr::logger_ptr d_logger
 
gr::logger_ptr d_debug_logger
 

Detailed Description

PN code sequential search correlator.

Receives complex baseband signal, outputs complex correlation against reference PN code, one sample per PN code period. The PN sequence is generated using a GLFSR.

Member Typedef Documentation

Member Function Documentation

static sptr gr::digital::pn_correlator_cc::make ( int  degree,
int  mask = 0,
int  seed = 1 
)
static

Make PN code sequential search correlator block.

Parameters
degreeDegree of shift register must be in [1, 32]. If mask is 0, the degree determines a default mask (see digital_impl_glfsr.cc for the mapping).
maskAllows a user-defined bit mask for indexes of the shift register to feed back.
seedInitial setting for values in shift register.

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