For a basic receiver how can we estimate/calculate URE when the pseudorange observable is used? Assume that it is a single frequency (L1) receiver.
Is there any metric that can be used to estimate this error to some extent? i.e. does the receiver have any estimate of the quality of the signal other than from the elevation of the satellite and DOP. Is the signal-to-noise ratio (SNR) which appears in the RINEX observation file for each pseudorange of any use here?