Figure 4From: GPS-R L1 interference signal processing for soil moisture estimation: an experimental studySNR value and amplitude. (a) Received SNR value before rainfall associated with satellites G1, G7, G8, G11, G17 and G28. (b) Amplitude in terms of voltage vs. sine of elevation angle of satellites G1, G7, G8, G11, G17, and G28.Back to article page