freqdem

Analog frequency demodulator

Public Functions

freqdem	freqdem_create(float _kf)
int	freqdem_destroy(freqdem _q)
int	freqdem_print(freqdem _q)
int	freqdem_reset(freqdem _q)
int	freqdem_demodulate(freqdem _q, float complex _r, float * _m)
int	freqdem_demodulate_block(freqdem _q, float complex * _r, unsigned int _n, float * _m)

Interfaces

freqdem freqdem_create(float _kf)∞

Create freqdem object (frequency modulator)

• _kf : modulation factor

int freqdem_destroy(freqdem _q)∞

Destroy freqdem object

int freqdem_print(freqdem _q)∞

Print freqdem object internals

int freqdem_reset(freqdem _q)∞

Reset state

int freqdem_demodulate(freqdem _q, float complex _r, float * _m)∞

Demodulate sample

• _q : frequency modulator object
• _r : received signal r(t)
• _m : output message signal m(t)

int freqdem_demodulate_block(freqdem _q, float complex * _r, unsigned int _n, float * _m)∞

Demodulate block of samples

• _q : frequency demodulator object
• _r : received signal r(t) [size: _n x 1]
• _n : number of input, output samples
• _m : message signal m(t), shape: (_n, 1)