GNU Radio 3.6.5 C++ API

Generic CPM modulator. More...
#include <digital_cpmmod_bc.h>
Public Member Functions  
std::vector< float >  get_taps () 
Return the phase response FIR taps.  
Protected Member Functions  
digital_cpmmod_bc (gr_cpm::cpm_type type, float h, unsigned samples_per_sym, unsigned L, double beta)  
Friends  
DIGITAL_API digital_cpmmod_bc_sptr  digital_make_cpmmod_bc (int type, float h, unsigned samples_per_sym, unsigned L, double beta) 
Generic CPM modulator.
Examples:
The input of this block are symbols from an Mary alphabet +/1, +/3, ..., +/(M1). Usually, M = 2 and therefore, the valid inputs are +/1. The modulator will silently accept any other inputs, though. The output is the phasemodulated signal.
digital_cpmmod_bc::digital_cpmmod_bc  (  gr_cpm::cpm_type  type, 
float  h,  
unsigned  samples_per_sym,  
unsigned  L,  
double  beta  
)  [protected] 
Build a generic CPM modulator block.
type  The modulation type. Can be one of LREC, LRC, LSRC, TFM or GAUSSIAN. See gr_cpm::phase_response() for a detailed description. 
h  The modulation index. is the maximum phase change that can occur between two symbols, i.e., if you only send ones, the phase will increase by every samples_per_sym samples. Set this to 0.5 for Minimum Shift Keying variants. 
samples_per_sym  Samples per symbol. 
L  The length of the phase duration in symbols. For L=1, this yields full response CPM symbols, for L > 1, partialresponse. 
beta  For LSRC, this is the rolloff factor. For Gaussian pulses, this is the 3 dB timebandwidth product. 
std::vector<float> digital_cpmmod_bc::get_taps  (  )  [inline] 
Return the phase response FIR taps.
DIGITAL_API digital_cpmmod_bc_sptr digital_make_cpmmod_bc  (  int  type, 
float  h,  
unsigned  samples_per_sym,  
unsigned  L,  
double  beta  
)  [friend] 