Concept information
Preferred term
HAIRS
Definition
- The K-band ranging (KBR) system is the instrument of GRACE which measures the dual one-way range change between both satellites. Both KBR are identical, except of the frequencies, which are shifted by 500 KHz to avoid cross-talk between transmitted and received signals and to offset the down-converted signal from zero frequency. Each satellite transmits carrier phase signals on two frequencies allowing for ionospheric corrections. [Summary provided by NASA.] Group: Instrument_Details Entry_ID: HAIRS Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Positioning/Navigation Instrument_Subtype: Radio Short_Name: HAIRS Long_Name: High Accuracy Inter-satellite Ranging System End_Group Group: Associated_Platforms Short_Name: GRACE End_Group Group: Spectral_Frequency_Information Wavelength_Keyword: Radio End_Group Online_Resource: http://www.asd.ssc.nasa.gov/m2m/sensor_report.aspx?sensor_id=1094 Creation_Date: 2007-02-06 Group: Instrument_Logistics Instrument_Owner: GFZ Potsdam End_Group End_Group (en)
Broader concept
- Radio (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/de43af49-b240-40e2-b412-9ba68c15ed7f
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