/*! \brief Create DC correction object object.
*
* Use make_dc_corr_cc() instead.
*/
dc_corr_cc::dc_corr_cc(float alpha)
: gr_sync_block ("dc_corr_cc",
gr_make_io_signature(1, 1, sizeof(gr_complex)),
gr_make_io_signature(1, 1, sizeof(gr_complex))),
d_alpha(alpha),
d_avg_i(0.0),
d_avg_q(0.0),
d_cnt(0)
{
}
/*! \brief Create a sniffe_fr object.
* \param buffsize The internal buffer size.
*
* When choosing buffer size, the user of this class should take into account:
* - The input sample rate.
* - How ofter the data will be popped.
*/
sniffer_f::sniffer_f(int buffsize)
: gr_sync_block ("rx_fft_c",
gr_make_io_signature(1, 1, sizeof(float)),
gr_make_io_signature(0, 0, 0)),
d_minsamp(1000)
{
/* allocate circular buffer */
d_buffer.set_capacity(buffsize);
}
soft_frame_contor::soft_frame_contor(gr_msg_queue_sptr target_queue, short_codec_sptr header_decoder)
: gr_sync_block ("soft_frame_contor",
gr_make_io_signature2 (2, 2, sizeof(unsigned char), sizeof(float)),
gr_make_io_signature (0, 0, 0)),
d_target_queue(target_queue), d_short_decoder(header_decoder), d_soft_float_counter(0)
{
enter_search();
}
/*! \brief Create noise blanker object.
*
* Use make_rx_nb_cc() instead.
*/
rx_nb_cc::rx_nb_cc(double sample_rate, float thld1, float thld2)
: gr_sync_block ("rx_nb_cc",
gr_make_io_signature(1, 1, sizeof(gr_complex)),
gr_make_io_signature(1, 1, sizeof(gr_complex))),
d_sample_rate(sample_rate),
d_thld_nb1(thld1),
d_thld_nb2(thld2),
d_nb1_on(false),
d_nb2_on(false),
d_avgmag_nb1(1.0),
d_avgmag_nb2(1.0),
d_hangtime(0),
d_sigidx(0),
d_delidx(2)
{
memset(d_delay, 0, 8 * sizeof(gr_complex));
}
/*! \brief Create receiver AGC object.
*
* Use make_rx_agc_cc() instead.
*/
rx_agc_cc::rx_agc_cc(double sample_rate, bool agc_on, int threshold,
int manual_gain, int slope, int decay, bool use_hang)
: gr_sync_block ("rx_agc_cc",
gr_make_io_signature(1, 1, sizeof(gr_complex)),
gr_make_io_signature(1, 1, sizeof(gr_complex))),
d_sample_rate(sample_rate),
d_agc_on(agc_on),
d_threshold(threshold),
d_manual_gain(manual_gain),
d_slope(slope),
d_decay(decay),
d_use_hang(use_hang)
{
d_agc = new CAgc();
d_agc->SetParameters(d_agc_on, d_use_hang, d_threshold, d_manual_gain,
d_slope, d_decay, d_sample_rate);
}
lpf_ff::lpf_ff(double sample_rate, double cutoff_freq,
double trans_width, double gain)
: gr_hier_block2("lpf_ff",
gr_make_io_signature(MIN_IN, MAX_IN, sizeof (float)),
gr_make_io_signature(MIN_OUT, MAX_OUT, sizeof (float))),
d_sample_rate(sample_rate),
d_cutoff_freq(cutoff_freq),
d_trans_width(trans_width),
d_gain(gain)
{
/* generate taps */
d_taps = gr_firdes::low_pass(d_gain, d_sample_rate,
d_cutoff_freq, d_trans_width);
/* create low-pass filter (decimation=1) */
lpf = gr_make_fir_filter_fff(1, d_taps);
/* connect filter */
connect(self(), 0, lpf, 0);
connect(lpf, 0, self(), 0);
}
