Measured quantities
The following table summarizes the quantities that are measured and computed by RVP10.
Subscripts are sometimes used to denote successive samples in time from a given range bin. For example, sn denotes the I and Q time series from the nth pulse from a given range bin. In cases where it is obvious, the subscripts denoting the pulse (time) are dropped. The descriptions of all the data processing algorithms are phrased in terms of the operations performed on data from a single range bin, identical processing then being applied to all of the selected ranges. There is no need to include a range subscript in this data notation.
| Quantity | Description | Type |
|---|---|---|
| p | Analog-to-digital convertor receiver data sample | Real |
| b | Analog-to-digital convertor burst-pulse data sample | Real |
| I, Q | Instantaneous quadrature receiver components | Real |
| s | Instantaneous time series phaser value | Complex |
| s' | Time series after clutter filter | Complex |
| T0 | Zeroth lag autocorrelation of svalues | Real |
| R0 | Zeroth lag autocorrelation of s' values | Real |
| R1 | First lag autocorrelation of s' values | Complex |
| R2 | Second lag autocorrelation of s' values | Complex |
| SQI | Signal Quality Index | Real |
| V | Mean velocity | Real |
| W | Spectrum width | Real |
| CCOR | Clutter correction | Real |
| LOG | (Signal+Noise)/Noise ratio for thresholding | Real |
| SIG | Signal power of weather | Real |
| C | Clutter power | Real |
| N | Noise power | Real |
| Z | Corrected reflectivity factor | Real |
| T | Uncorrected reflectivity factor | Real |
| PMI | Polarimetric Meteorological Index | Real |