From 35599ee9c8a2822c0f480673b4d8d8e87049094c Mon Sep 17 00:00:00 2001 From: "Matthias P. Braendli" Date: Thu, 14 Mar 2019 08:32:26 +0100 Subject: Add analog bandwidth configuration to UHD and Soapy outputs --- src/ConfigParser.cpp | 2 ++ src/output/SDR.cpp | 8 ++++++++ src/output/SDRDevice.h | 3 +++ src/output/Soapy.cpp | 28 +++++++++++++++++++++++++--- src/output/Soapy.h | 4 +++- src/output/UHD.cpp | 23 ++++++++++++++++++++++- src/output/UHD.h | 4 +++- 7 files changed, 66 insertions(+), 6 deletions(-) (limited to 'src') diff --git a/src/ConfigParser.cpp b/src/ConfigParser.cpp index 21f2c23..9813663 100644 --- a/src/ConfigParser.cpp +++ b/src/ConfigParser.cpp @@ -235,6 +235,7 @@ static void parse_configfile( sdr_device_config.rx_antenna = pt.Get("uhdoutput.rx_antenna", "RX2"); sdr_device_config.rxgain = pt.GetReal("uhdoutput.rxgain", 0.0); sdr_device_config.frequency = pt.GetReal("uhdoutput.frequency", 0); + sdr_device_config.bandwidth = pt.GetReal("uhdoutput.bandwidth", 0); std::string chan = pt.Get("uhdoutput.channel", ""); sdr_device_config.dabMode = mod_settings.dabMode; @@ -287,6 +288,7 @@ static void parse_configfile( outputsoapy_conf.tx_antenna = pt.Get("soapyoutput.tx_antenna", ""); outputsoapy_conf.lo_offset = pt.GetReal("soapyoutput.lo_offset", 0.0); outputsoapy_conf.frequency = pt.GetReal("soapyoutput.frequency", 0); + outputsoapy_conf.bandwidth = pt.GetReal("soapyoutput.bandwidth", 0); std::string chan = pt.Get("soapyoutput.channel", ""); outputsoapy_conf.dabMode = mod_settings.dabMode; diff --git a/src/output/SDR.cpp b/src/output/SDR.cpp index 23a947b..bacb281 100644 --- a/src/output/SDR.cpp +++ b/src/output/SDR.cpp @@ -75,6 +75,7 @@ SDR::SDR(SDRDeviceConfig& config, std::shared_ptr device) : RC_ADD_PARAMETER(txgain, "TX gain"); RC_ADD_PARAMETER(rxgain, "RX gain for DPD feedback"); + RC_ADD_PARAMETER(bandwidth, "Analog front-end bandwidth"); RC_ADD_PARAMETER(freq, "Transmission frequency"); RC_ADD_PARAMETER(muting, "Mute the output by stopping the transmitter"); RC_ADD_PARAMETER(temp, "Temperature in degrees C of the device"); @@ -376,6 +377,10 @@ void SDR::set_parameter(const string& parameter, const string& value) ss >> m_config.rxgain; m_device->set_rxgain(m_config.rxgain); } + else if (parameter == "bandwidth") { + ss >> m_config.bandwidth; + m_device->set_bandwidth(m_config.bandwidth); + } else if (parameter == "freq") { ss >> m_config.frequency; m_device->tune(m_config.lo_offset, m_config.frequency); @@ -409,6 +414,9 @@ const string SDR::get_parameter(const string& parameter) const else if (parameter == "rxgain") { ss << m_config.rxgain; } + else if (parameter == "bandwidth") { + ss << m_config.bandwidth; + } else if (parameter == "freq") { ss << m_config.frequency; } diff --git a/src/output/SDRDevice.h b/src/output/SDRDevice.h index 90a1123..a1a488f 100644 --- a/src/output/SDRDevice.h +++ b/src/output/SDRDevice.h @@ -63,6 +63,7 @@ struct SDRDeviceConfig { double txgain = 0.0; double rxgain = 0.0; bool enableSync = false; + double bandwidth = 0.0; // When working with timestamps, mute the frames that // do not have a timestamp @@ -124,6 +125,8 @@ class SDRDevice { virtual double get_real_secs(void) const = 0; virtual void set_rxgain(double rxgain) = 0; virtual double get_rxgain(void) const = 0; + virtual void set_bandwidth(double bandwidth) = 0; + virtual double get_bandwidth(void) const = 0; virtual size_t receive_frame( complexf *buf, size_t num_samples, diff --git a/src/output/Soapy.cpp b/src/output/Soapy.cpp index 8c84b84..4846279 100644 --- a/src/output/Soapy.cpp +++ b/src/output/Soapy.cpp @@ -2,7 +2,7 @@ Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Her Majesty the Queen in Right of Canada (Communications Research Center Canada) - Copyright (C) 2018 + Copyright (C) 2019 Matthias P. Braendli, matthias.braendli@mpb.li http://opendigitalradio.org @@ -90,15 +90,23 @@ Soapy::Soapy(SDRDeviceConfig& config) : std::fixed << std::setprecision(3) << m_conf.frequency / 1000.0 << " kHz."; + if (m_conf.bandwidth > 0) { + m_device->setBandwidth(SOAPY_SDR_TX, 0, m_conf.bandwidth); + m_device->setBandwidth(SOAPY_SDR_RX, 0, m_conf.bandwidth); + etiLog.level(info) << "SoapySDR:Actual TX bandwidth: " << + std::fixed << std::setprecision(2) << + m_device->getBandwidth(SOAPY_SDR_TX, 0); + } + m_device->setGain(SOAPY_SDR_TX, 0, m_conf.txgain); - etiLog.level(info) << "SoapySDR:Actual tx gain: " << + etiLog.level(info) << "SoapySDR:Actual TX gain: " << std::fixed << std::setprecision(2) << m_device->getGain(SOAPY_SDR_TX, 0); if (not m_conf.tx_antenna.empty()) { m_device->setAntenna(SOAPY_SDR_TX, 0, m_conf.tx_antenna); } - etiLog.level(info) << "SoapySDR:Actual tx antenna: " << + etiLog.level(info) << "SoapySDR:Actual TX antenna: " << m_device->getAntenna(SOAPY_SDR_TX, 0); if (m_device->hasHardwareTime()) { @@ -157,6 +165,20 @@ double Soapy::get_txgain(void) const return m_device->getGain(SOAPY_SDR_TX, 0); } +void Soapy::set_bandwidth(double bandwidth) +{ + m_conf.bandwidth = bandwidth; + if (not m_device) throw runtime_error("Soapy device not set up"); + m_device->setBandwidth(SOAPY_SDR_TX, 0, m_conf.bandwidth); + m_device->setBandwidth(SOAPY_SDR_RX, 0, m_conf.bandwidth); +} + +double Soapy::get_bandwidth(void) const +{ + if (not m_device) throw runtime_error("Soapy device not set up"); + return m_device->getBandwidth(SOAPY_SDR_TX, 0); +} + SDRDevice::RunStatistics Soapy::get_run_statistics(void) const { RunStatistics rs; diff --git a/src/output/Soapy.h b/src/output/Soapy.h index 9feb0b8..4ee53ca 100644 --- a/src/output/Soapy.h +++ b/src/output/Soapy.h @@ -2,7 +2,7 @@ Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Her Majesty the Queen in Right of Canada (Communications Research Center Canada) - Copyright (C) 2018 + Copyright (C) 2019 Matthias P. Braendli, matthias.braendli@mpb.li http://opendigitalradio.org @@ -63,6 +63,8 @@ class Soapy : public Output::SDRDevice virtual double get_tx_freq(void) const override; virtual void set_txgain(double txgain) override; virtual double get_txgain(void) const override; + virtual void set_bandwidth(double bandwidth) override; + virtual double get_bandwidth(void) const override; virtual void transmit_frame(const struct FrameData& frame) override; virtual RunStatistics get_run_statistics(void) const override; virtual double get_real_secs(void) const override; diff --git a/src/output/UHD.cpp b/src/output/UHD.cpp index c6c500b..e85e66f 100644 --- a/src/output/UHD.cpp +++ b/src/output/UHD.cpp @@ -2,7 +2,7 @@ Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Her Majesty the Queen in Right of Canada (Communications Research Center Canada) - Copyright (C) 2018 + Copyright (C) 2019 Matthias P. Braendli, matthias.braendli@mpb.li http://opendigitalradio.org @@ -193,6 +193,15 @@ UHD::UHD(SDRDeviceConfig& config) : throw std::runtime_error("Cannot set USRP sample rate. Aborted."); } + if (m_conf.bandwidth > 0) { + m_usrp->set_tx_bandwidth(m_conf.bandwidth); + m_usrp->set_rx_bandwidth(m_conf.bandwidth); + + etiLog.level(info) << "OutputUHD:Actual TX bandwidth: " << + std::fixed << std::setprecision(2) << + m_usrp->get_tx_bandwidth(); + } + tune(m_conf.lo_offset, m_conf.frequency); m_conf.frequency = m_usrp->get_tx_freq(); @@ -294,6 +303,18 @@ double UHD::get_txgain(void) const return m_usrp->get_tx_gain(); } +void UHD::set_bandwidth(double bandwidth) +{ + m_usrp->set_tx_bandwidth(bandwidth); + m_usrp->set_rx_bandwidth(bandwidth); + m_conf.bandwidth = m_usrp->get_tx_bandwidth(); +} + +double UHD::get_bandwidth(void) const +{ + return m_usrp->get_tx_bandwidth(); +} + void UHD::transmit_frame(const struct FrameData& frame) { const double tx_timeout = 20.0; diff --git a/src/output/UHD.h b/src/output/UHD.h index f42b6e8..29867fb 100644 --- a/src/output/UHD.h +++ b/src/output/UHD.h @@ -2,7 +2,7 @@ Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Her Majesty the Queen in Right of Canada (Communications Research Center Canada) - Copyright (C) 2018 + Copyright (C) 2019 Matthias P. Braendli, matthias.braendli@mpb.li http://opendigitalradio.org @@ -77,6 +77,8 @@ class UHD : public Output::SDRDevice virtual double get_tx_freq(void) const override; virtual void set_txgain(double txgain) override; virtual double get_txgain(void) const override; + virtual void set_bandwidth(double bandwidth) override; + virtual double get_bandwidth(void) const override; virtual void transmit_frame(const struct FrameData& frame) override; virtual RunStatistics get_run_statistics(void) const override; virtual double get_real_secs(void) const override; -- cgit v1.2.3