<?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:gmd="http://www.isotc211.org/2005/gmd" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:mrl="http://standards.iso.org/iso/19115/-3/mrl/1.0" 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_LOFAR_beamforming_hba</localID>
<namespace>astron</namespace>
<version>1</version>
<creationDate>2024-07-12T12:03:00Z</creationDate>
<lastModificationDate>2024-07-12T12:03:00Z</lastModificationDate>
</PITHIA_Identifier>
</identifier>
<name>LOFAR_beamforming_hba</name>
<description>Individually sampled quadrature components of received voltage in each channel of the array are coherently summed with phase shifting to form a beam in the given direction. The receiver voltages are sampled within a broad band that is split in sub-bands for individual processing and report. Effectively, LOFAR in this operational mode behaves as a large set of receivers operating in different subbands between 110 and 240 MHz.</description>
<capabilities>
<processCapability>
<name>ReceiverBeamVoltage</name>
<observedProperty xlink:href="https://metadata.pithia.eu/ontology/2.2/observedProperty/EM-Wave_ElectricFieldStrength"/>
<dimensionalityInstance xlink:href="https://metadata.pithia.eu/ontology/2.2/dimensionalityInstance/2D"/>
<dimensionalityTimeline xlink:href="https://metadata.pithia.eu/ontology/2.2/dimensionalityTimeline/2DImageSpectrogram"/>
<cadence unit="second">0.1</cadence>
</processCapability>
</capabilities>
<dataLevel xlink:href="https://metadata.pithia.eu/ontology/2.2/dataLevel/L0"/>
<instrumentModePair>
<InstrumentOperationalModePair>
<instrument xlink:href="https://metadata.pithia.eu/resources/2.2/instrument/astron/Instrument_LOFAR_station"/>
<mode xlink:href="https://metadata.pithia.eu/resources/2.2/instrument/astron/Instrument_LOFAR_station#beamforming_hba"/>
</InstrumentOperationalModePair>
</instrumentModePair>
<inputDescription>
<InputOutput>
<name>Direction</name>
<description>
<mrl:LE_Source>
<mrl:description xmlns="http://standards.iso.org/iso/19115/-3/gco/1.0">
<CharacterString>Beamforming direction</CharacterString>
</mrl:description>
</mrl:LE_Source>
</description>
</InputOutput>
</inputDescription>
</AcquisitionCapabilities>
