CONTENTS

Policy on Intellectual Property Right (IPR)
 1     Introduction
 2     Objective
 3     Pulsed EESS signal impact measurement approach
 4     2010 U.S. study of EESS signal impact on GPS receivers
        4.1     Synthetic aperture radar and scatterometer descriptions
                  4.1.1     SAR and scatterometer system parameter details
                  4.1.2     SAR and scatterometer test set-up details
                  4.1.3     SAR and scatterometer signal simulation details
                  4.1.4     SAR and scatterometer signal calibration
        4.2     RNSS receiver characteristics and performance criteria
        4.3     Measurement procedure
                  4.3.1     SBAS ground reference receiver (RNSS1) measurement features
                  4.3.2     Specialized high-precision semi‑codeless receiver (RNSS2) measurement features
        4.4     Measurement results
                  4.4.1     RNSS receiver selectivity and antenna filter model
                  4.4.2     RNSS receiver C/N₀ pulsed RFI impact equations
                  4.4.3     Measured SNR or C/N₀ degradation versus effective duty cycle
        4.5     Possible mitigation techniques
                  4.5.1     Reduction of the ratio of chirp bandwidth overlapping the pre-correlator band
                  4.5.2     Reduction of the ratio of observation time per cycle
                  4.5.3     Reduction of potential for multiple EESS satellite illumination of RNSS receivers
        4.6     2010 U.S. study conclusions of EESS signal impact to GPS receivers
 5     2011 Japanese study of EESS SAR4, 5, 6 (ALOS-2) signal impact on QZSS receivers
 6     Summary