| 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
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