43 unsigned char d_sync_word;
45 unsigned short d_fft_size;
46 unsigned char d_interleaver_size;
48 std::vector<gr_complex> d_upchirp;
49 std::vector<gr_complex> d_downchirp;
51 std::vector<gr_complex> d_iq_out;
56 mod_impl(
short spreading_factor,
unsigned char d_sync_word);
62 gr_vector_int &ninput_items,
63 gr_vector_const_void_star &input_items,
64 gr_vector_void_star &output_items);