diff options
Diffstat (limited to 'host/examples/tx_waveforms.cpp')
-rw-r--r-- | host/examples/tx_waveforms.cpp | 49 |
1 files changed, 1 insertions, 48 deletions
diff --git a/host/examples/tx_waveforms.cpp b/host/examples/tx_waveforms.cpp index 7e633262c..9254c3b24 100644 --- a/host/examples/tx_waveforms.cpp +++ b/host/examples/tx_waveforms.cpp @@ -15,6 +15,7 @@ // along with this program. If not, see <http://www.gnu.org/licenses/>. // +#include "wavetable.hpp" #include <uhd/utils/thread_priority.hpp> #include <uhd/utils/safe_main.hpp> #include <uhd/utils/static.hpp> @@ -28,9 +29,7 @@ #include <boost/lexical_cast.hpp> #include <boost/algorithm/string.hpp> #include <iostream> -#include <complex> #include <csignal> -#include <cmath> namespace po = boost::program_options; @@ -41,52 +40,6 @@ static bool stop_signal_called = false; void sig_int_handler(int){stop_signal_called = true;} /*********************************************************************** - * Waveform generators - **********************************************************************/ -static const size_t wave_table_len = 8192; - -class wave_table_class{ -public: - wave_table_class(const std::string &wave_type, const float ampl): - _wave_table(wave_table_len) - { - //compute real wave table with 1.0 amplitude - std::vector<double> real_wave_table(wave_table_len); - if (wave_type == "CONST"){ - for (size_t i = 0; i < wave_table_len; i++) - real_wave_table[i] = 1.0; - } - else if (wave_type == "SQUARE"){ - for (size_t i = 0; i < wave_table_len; i++) - real_wave_table[i] = (i < wave_table_len/2)? 0.0 : 1.0; - } - else if (wave_type == "RAMP"){ - for (size_t i = 0; i < wave_table_len; i++) - real_wave_table[i] = 2.0*i/(wave_table_len-1) - 1.0; - } - else if (wave_type == "SINE"){ - static const double tau = 2*std::acos(-1.0); - for (size_t i = 0; i < wave_table_len; i++) - real_wave_table[i] = std::sin((tau*i)/wave_table_len); - } - else throw std::runtime_error("unknown waveform type: " + wave_type); - - //compute i and q pairs with 90% offset and scale to amplitude - for (size_t i = 0; i < wave_table_len; i++){ - const size_t q = (i+(3*wave_table_len)/4)%wave_table_len; - _wave_table[i] = std::complex<float>(ampl*real_wave_table[i], ampl*real_wave_table[q]); - } - } - - inline std::complex<float> operator()(const size_t index) const{ - return _wave_table[index % wave_table_len]; - } - -private: - std::vector<std::complex<float> > _wave_table; -}; - -/*********************************************************************** * Main function **********************************************************************/ int UHD_SAFE_MAIN(int argc, char *argv[]){ |