SPECIFICATIONS OF THE POLARIMETER

Input terms Digital data representing complex voltage samples from two orthogonal polarized ( both linearly or both circularly polarized ) antennas
Input Representation Sign-magnitude numbers, 1 bit sign, eight bit magnitude each for real and imaginary parts of the complex voltage samples
Number of Input Frequency Channels ( Time-Multiplexed form ) 256 per sub-band
Number of Output Data Paths 8 data paths, with the spectrum being split into sets of 32 consecutive frequency channels per data path. The Stokes parameters of respective group of 32 channels are sent in time-multiplexed form in each path
Technology FLEX EPLDs, PROM look-up tables
Output Data Representation Sign magnitude numbers, 1-bit sign, 15-bit magnitude for each Stokes parameter
Output Linear Polarization angle error limit ≤ 0.5 deg
Output Data rate per Data path 128 Mbytes per second after Stokes parameter calculation, 16 MWords per second per data path after channel splitting for 8 nodes
Polarization Representation In terms of Stokes parameters I, Q, U, V, ( unnormalized ) representing total power linearly polarized intensity and circularly polarized intensity

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