<?xml version="1.0" encoding="UTF-8"?>
<AcquisitionCapabilities xmlns="https://metadata.pithia.eu/schemas/2.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="https://metadata.pithia.eu/schemas/2.2 https://metadata.pithia.eu/schemas/2.2/pithia.xsd">
<identifier>
<PITHIA_Identifier>
<localID>AcquisitionCapabilities_GNSS_Scintillation_Receiver_PolaRxS_PolaRx5S</localID>
<namespace>pithia</namespace>
<version>1</version>
<creationDate>2022-02-08T10:30:00Z</creationDate>
<lastModificationDate>2022-05-08T12:30:00Z</lastModificationDate>
</PITHIA_Identifier>
</identifier>
<name>Acquisition capabilities of GNSS Scintillation Receiver PolaRxS/PolaRx5S</name>
<description>
The instrument collects the GNSS signals from the line-of-sight satellites and tracks their
numerical counterparts. The RF front-end down-converts the input signal to a predefined
Intermediate Frequency (IF) prior to its sampling and quantization. Eventually, it provides
prompt In-Phase and Quadrature samples which can be used to estimate the signal Amplitude
variations, while the signal Phase variation can be derived through the output of the loop
filter in charge of tracking the IF carrier. The PolaRx5S provides the raw GNSS samples at
50/100 Hz for the following GNSS constellations and signal types: GPS (L1CA, L1P, L2P, L2C,
L5), GLONASS (L1CA, L2C, L2P, L2CA, L3) GALILEO (L1BC, E5, E5a, E5b, E6BC), BEIDOU (B1, B2,
B3), SBAS (L1CA, L5),IRNSS (L5),QZSS (L1CA, L2C, L5). The PolaRx5S provides the raw GNSS
samples at 50/100 Hz for the following GNSS constellations and signal types: GPS (L1CA, L1P,
L2P, L2C, L5, L1C), GLONASS (L1CA, L1P, L2P, L2CA, L3), GALILEO (E1, E5a, E5b, E5AltBoc,
E6), BEIDOU (B1C, B2a, B2b, B1l, B2l, B3l), SBAS (L1CA, L5), IRNSS (L5), QZSS (L1CA, L1C,
L1S, L2C, L5 ,L6).
</description>
<capabilities>
<processCapability>
<name>Signal Amplitude</name>
<observedProperty xlink:href="https://metadata.pithia.eu/ontology/2.2/observedProperty/WaveAmplitudeVariation"/>
<dimensionalityInstance xlink:href="https://metadata.pithia.eu/ontology/2.2/dimensionalityInstance/1DPoints"/>
<dimensionalityTimeline xlink:href="https://metadata.pithia.eu/ontology/2.2/dimensionalityTimeline/1DTimeseries"/>
<units xlink:href="https://metadata.pithia.eu/ontology/2.2/unit/dB"/>
</processCapability>
<processCapability>
<name>Signal Carrier-Phase</name>
<observedProperty xlink:href="https://metadata.pithia.eu/ontology/2.2/observedProperty/WavePhaseVariation"/>
<dimensionalityInstance xlink:href="https://metadata.pithia.eu/ontology/2.2/dimensionalityInstance/1DPoints"/>
<dimensionalityTimeline xlink:href="https://metadata.pithia.eu/ontology/2.2/dimensionalityTimeline/1DTimeseries"/>
<units xlink:href="https://metadata.pithia.eu/ontology/2.2/unit/rad"/>
</processCapability>
</capabilities>
<dataLevel xlink:href="https://metadata.pithia.eu/ontology/2.2/dataLevel/L1"/>
<qualityAssessment>
<dataQualityFlag xlink:href="https://metadata.pithia.eu/ontology/2.2/dataQualityFlag/DQ0"/>
</qualityAssessment>
<!-- <type
xlink:href="https://metadata.pithia.eu/ontology/2.2/computationType/GNSS-SignalProcessing" /> -->
<!-- Instrument that has these acquisition capabilities -->
<instrumentModePair>
<InstrumentOperationalModePair>
<instrument xlink:href="https://metadata.pithia.eu/resources/2.2/instrument/septentrio/Instrument_GNSS_Scintillation_Receiver_PolaRxS_PolaRx5S"/>
<mode xlink:href="https://metadata.pithia.eu/resources/2.2/instrument/septentrio/Instrument_GNSS_Scintillation_Receiver_PolaRxS_PolaRx5S#GNSS-high-sampling-rate"/>
</InstrumentOperationalModePair>
</instrumentModePair>
</AcquisitionCapabilities>
