Recommendation ITU-R RS.1166-5 (12/2023) - Performance and interference criteria for active spaceborne sensors
Foreword
Policy on Intellectual Property Right (IPR)
Scope
Annex 1 – Performance and interference criteria for  spaceborne active sensors
1 Introduction
     1.1 Systematic and Random interference
2 Altimeters
     2.1 Performance criteria
     2.2 Interference criteria
3 Scatterometers
     3.1 Performance criteria
     3.2 Interference criteria
4 Precipitation radars
     4.1 Precipitation radars based upon GPM DPR
          4.1.1 Performance criteria at 13.597/13.603 GHz
          4.1.2 Interference criteria
          4.1.3 GPM 35 GHz band precipitation radar
               4.1.3.1 Performance criteria
               4.1.3.2 Interference criteria
5 Synthetic aperture radars
     5.1 Performance criteria of SARs
     5.2 Interference criteria of SAR
          5.2.1 Processing gain of noise and noise-like interference
          5.2.2 Processing gain of other interference signals
               5.2.2.1 Range processing gain for pulsed CW interference
               5.2.2.2 Range processing gain for non-pulsed CW interference signals
               5.2.2.3 Range processing gain for linear FM interference signals
               5.2.2.4 Range processing gain for other radar interference waveforms/modulation
               5.2.2.5 Azimuth processing gain of pulsed interference signals
          5.2.3 Calculation of allowable interference
          5.2.4 Interference criteria
          5.2.5 Availability criterion
6 Cloud profile radars
     6.1 Performance criteria for 94 GHz cloud profile radar
     6.2 Interference criteria for 94 GHz cloud profile radar
     6.3 Availability criteria of the cloud profile radar
7 Measurement area of interest for the evaluation of systematic interference
8 Transient impulse interference considerations
     8.1 Determination of peak transient power for some modulation schemes
9 Typical EESS (active) sensor parameters to be used in determining impact from differing types of interference