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Inherit DigitalRadarData from GenericRadarData
This commit is contained in:
Dan Paulat
parent
571d0b2ce9
commit
730c1a9ba7
2 changed files with 223 additions and 15 deletions
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@ -1,9 +1,6 @@
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#pragma once
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#include <scwx/wsr88d/rda/level2_message.hpp>
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#include <units/angle.h>
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#include <units/length.h>
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#include <scwx/wsr88d/rda/generic_radar_data.hpp>
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namespace scwx
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{
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@ -12,7 +9,7 @@ namespace wsr88d
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namespace rda
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{
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class DigitalRadarData : public Level2Message
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class DigitalRadarData : public GenericRadarData
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{
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public:
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explicit DigitalRadarData();
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@ -56,6 +53,9 @@ public:
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std::uint16_t tover() const;
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std::uint16_t radial_spot_blanking_status() const;
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std::shared_ptr<GenericRadarData::MomentDataBlock>
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moment_data_block(DataBlockType type) const;
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bool Parse(std::istream& is);
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static std::shared_ptr<DigitalRadarData> Create(Level2MessageHeader&& header,
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@ -20,6 +20,8 @@ constexpr float kRangeScale = 0.001f;
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class DigitalRadarData::Impl
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{
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public:
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class MomentDataBlock;
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explicit Impl() {};
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~Impl() = default;
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@ -49,13 +51,59 @@ public:
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std::uint16_t tover_ {};
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std::uint16_t radialSpotBlankingStatus_ {};
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std::vector<std::uint8_t> reflectivity_ {};
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std::vector<std::uint8_t> dopplerVelocity_ {};
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std::vector<std::uint8_t> dopplerSpectrumWidth_ {};
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std::shared_ptr<MomentDataBlock> reflectivityDataBlock_ {nullptr};
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std::shared_ptr<MomentDataBlock> dopplerVelocityDataBlock_ {nullptr};
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std::shared_ptr<MomentDataBlock> dopplerSpectrumWidthDataBlock_ {nullptr};
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};
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class DigitalRadarData::Impl::MomentDataBlock :
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public GenericRadarData::MomentDataBlock
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{
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public:
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explicit MomentDataBlock(const DigitalRadarData* self, DataBlockType type);
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~MomentDataBlock() = default;
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MomentDataBlock(const MomentDataBlock&) = delete;
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MomentDataBlock& operator=(const MomentDataBlock&) = delete;
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MomentDataBlock(MomentDataBlock&&) noexcept = default;
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MomentDataBlock& operator=(MomentDataBlock&&) noexcept = default;
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std::uint16_t number_of_data_moment_gates() const;
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units::kilometers<float> data_moment_range() const;
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std::uint16_t data_moment_range_raw() const;
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units::kilometers<float> data_moment_range_sample_interval() const;
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std::uint16_t data_moment_range_sample_interval_raw() const;
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std::int16_t snr_threshold_raw() const;
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std::uint8_t data_word_size() const;
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float scale() const;
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float offset() const;
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const void* data_moments() const;
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std::vector<std::uint8_t>& data_moment_vector() const;
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private:
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class Impl;
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std::unique_ptr<Impl> p;
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};
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class DigitalRadarData::Impl::MomentDataBlock::Impl
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{
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public:
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explicit Impl() {};
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~Impl() = default;
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std::uint16_t numberOfDataMomentGates_ {};
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std::uint16_t dataMomentRange_ {};
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std::uint16_t dataMomentRangeSampleInterval_ {};
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float scale_ {};
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float offset_ {};
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std::vector<std::uint8_t> dataMoments_ {};
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};
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DigitalRadarData::DigitalRadarData() :
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Level2Message(), p(std::make_unique<Impl>())
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GenericRadarData(), p(std::make_unique<Impl>())
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{
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}
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DigitalRadarData::~DigitalRadarData() = default;
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@ -222,6 +270,151 @@ std::uint16_t DigitalRadarData::radial_spot_blanking_status() const
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return p->radialSpotBlankingStatus_;
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}
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std::shared_ptr<GenericRadarData::MomentDataBlock>
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DigitalRadarData::moment_data_block(DataBlockType type) const
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{
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std::shared_ptr<GenericRadarData::MomentDataBlock> block = nullptr;
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switch (type)
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{
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case DataBlockType::MomentRef:
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block = p->reflectivityDataBlock_;
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break;
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case DataBlockType::MomentVel:
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block = p->dopplerVelocityDataBlock_;
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break;
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case DataBlockType::MomentSw:
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block = p->dopplerSpectrumWidthDataBlock_;
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break;
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default:
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break;
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}
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return block;
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}
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DigitalRadarData::Impl::MomentDataBlock::MomentDataBlock(
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const DigitalRadarData* self, DataBlockType type)
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{
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switch (type)
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{
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case DataBlockType::MomentRef:
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p->numberOfDataMomentGates_ = self->number_of_surveillance_bins();
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p->dataMomentRange_ = self->surveillance_range_raw();
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p->dataMomentRangeSampleInterval_ =
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self->surveillance_range_sample_interval_raw();
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// Table III-E Base Data Scaling
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// Rnum = (R / 2) - 33.0
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p->scale_ = 2.0f;
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p->offset_ = 66.0f; // (33.0 * 2)
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break;
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case DataBlockType::MomentVel:
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p->numberOfDataMomentGates_ = self->number_of_doppler_bins();
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p->dataMomentRange_ = self->doppler_range_raw();
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p->dataMomentRangeSampleInterval_ =
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self->doppler_range_sample_interval_raw();
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// Table III-E Base Data Scaling
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if (self->doppler_velocity_resolution() == 2) // 2 = 0.5 m/s
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{
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// Vnum = (V / 2) - 64.5
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p->scale_ = 2.0f;
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p->offset_ = 129.0f; // (64.5 * 2)
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}
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else // 4 = 1.0 m/s
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{
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// Vnum = V - 129.0
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p->scale_ = 1.0f;
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p->offset_ = 129.0f;
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}
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break;
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case DataBlockType::MomentSw:
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p->numberOfDataMomentGates_ = self->number_of_doppler_bins();
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p->dataMomentRange_ = self->doppler_range_raw();
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p->dataMomentRangeSampleInterval_ =
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self->doppler_range_sample_interval_raw();
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// Table III-E Base Data Scaling
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// SWnum = (SW / 2) - 64.5
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p->scale_ = 2.0f;
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p->offset_ = 129.0f; // (64.5 * 2)
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break;
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}
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}
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std::uint16_t
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DigitalRadarData::Impl::MomentDataBlock::number_of_data_moment_gates() const
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{
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return p->numberOfDataMomentGates_;
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}
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units::kilometers<float>
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DigitalRadarData::Impl::MomentDataBlock::data_moment_range() const
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{
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return units::kilometers<float> {p->dataMomentRange_ * kRangeScale};
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}
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std::uint16_t
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DigitalRadarData::Impl::MomentDataBlock::data_moment_range_raw() const
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{
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return p->dataMomentRange_;
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}
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units::kilometers<float>
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DigitalRadarData::Impl::MomentDataBlock::data_moment_range_sample_interval()
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const
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{
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return units::kilometers<float> {p->dataMomentRangeSampleInterval_ *
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kRangeScale};
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}
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std::uint16_t
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DigitalRadarData::Impl::MomentDataBlock::data_moment_range_sample_interval_raw()
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const
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{
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return p->dataMomentRangeSampleInterval_;
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}
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std::int16_t DigitalRadarData::Impl::MomentDataBlock::snr_threshold_raw() const
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{
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// Table III Digital Radar Data (Message Type 1) Note 10:
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// Value of 00 (prior to scaling) is Signal Below Threshold, value of 01
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// (prior to scaling) is Signal Overlaid
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return 2;
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}
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std::uint8_t DigitalRadarData::Impl::MomentDataBlock::data_word_size() const
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{
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// Data moments are 8-bit for Digital Radar Data
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return 8;
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}
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float DigitalRadarData::Impl::MomentDataBlock::scale() const
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{
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return p->scale_;
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}
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float DigitalRadarData::Impl::MomentDataBlock::offset() const
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{
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return p->offset_;
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}
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const void* DigitalRadarData::Impl::MomentDataBlock::data_moments() const
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{
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return p->dataMoments_.data();
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}
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std::vector<std::uint8_t>&
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DigitalRadarData::Impl::MomentDataBlock::data_moment_vector() const
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{
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return p->dataMoments_;
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}
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bool DigitalRadarData::Parse(std::istream& is)
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{
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logger_->trace("Parsing Digital Radar Data (Message Type 1)");
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@ -337,31 +530,46 @@ bool DigitalRadarData::Parse(std::istream& is)
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if (messageValid && p->surveillancePointer_ != 0)
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{
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p->reflectivityDataBlock_ = std::make_shared<Impl::MomentDataBlock>(
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this, DataBlockType::MomentRef);
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auto& reflectivity = p->reflectivityDataBlock_->data_moment_vector();
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is.seekg(isBegin + std::streamoff(p->surveillancePointer_),
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std::ios_base::beg);
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p->reflectivity_.resize(p->numberOfSurveillanceBins_);
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is.read(reinterpret_cast<char*>(p->reflectivity_.data()),
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reflectivity.resize(p->numberOfSurveillanceBins_);
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is.read(reinterpret_cast<char*>(reflectivity.data()),
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p->numberOfSurveillanceBins_);
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}
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if (messageValid && p->velocityPointer_ != 0)
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{
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p->dopplerVelocityDataBlock_ = std::make_shared<Impl::MomentDataBlock>(
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this, DataBlockType::MomentVel);
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auto& dopplerVelocity =
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p->dopplerVelocityDataBlock_->data_moment_vector();
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is.seekg(isBegin + std::streamoff(p->velocityPointer_),
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std::ios_base::beg);
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p->dopplerVelocity_.resize(p->numberOfDopplerBins_);
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is.read(reinterpret_cast<char*>(p->dopplerVelocity_.data()),
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dopplerVelocity.resize(p->numberOfDopplerBins_);
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is.read(reinterpret_cast<char*>(dopplerVelocity.data()),
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p->numberOfDopplerBins_);
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}
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if (messageValid && p->spectralWidthPointer_ != 0)
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{
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p->dopplerSpectrumWidthDataBlock_ =
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std::make_shared<Impl::MomentDataBlock>(this,
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DataBlockType::MomentVel);
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auto& dopplerSpectrumWidth =
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p->dopplerSpectrumWidthDataBlock_->data_moment_vector();
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is.seekg(isBegin + std::streamoff(p->spectralWidthPointer_),
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std::ios_base::beg);
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p->dopplerSpectrumWidth_.resize(p->numberOfDopplerBins_);
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is.read(reinterpret_cast<char*>(p->dopplerSpectrumWidth_.data()),
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dopplerSpectrumWidth.resize(p->numberOfDopplerBins_);
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is.read(reinterpret_cast<char*>(dopplerSpectrumWidth.data()),
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p->numberOfDopplerBins_);
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}
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