USER’S MANUAL__________________________________________________________________
450 _________________________________________________________________ M211322EN-D
Each individual time series sample consists of 2 floating point numbers
representing the I followed by the Q voltage. The values are full magnitude
with a value of 1. This represents +8dBm on the IFDR, but may change in
future revisions. Floating point numbers are packed into 16-bit words
using "High SNR" packed floating format (see Section 7.7 Initiate
Processing (PROC) on page 275). These 16-bit words are always stored in
the little-endian byte order that is native to the Intel processor chips
common on PCs, which is the reverse of "Network order" used on sockets.
The tsview displays the (I,Q) samples in power and angle format:
Power - 6dBm + 10 x log
10
[I
2
+ Q
2
]
Angle – atan2(Q, I)
The first time series sample number is from the burst pulse. This is
followed by a sample from each range bin with data. The iNumVecs field
in the pulse hdr indicates the total number of samples. If it is a dual
polarization receiver system, this is duplicated for the second receiver (the
iVIQPerBin field in the pulse hdr). The total number of bytes of data is:
Bytes - 2 x 2 x iNumVecs x iVIQPerBin
The number of sample can be different in each pulse within the same file.
This is because the sampling stops when the next trigger arrives. If triggers
are from an external source, the PRT may fluctuate.
Table 26 TS File Format
<rvptsPulseInfo>
Variable size, even
<rvptsPulseHdr #1>
Variable size, even
Pulse Data #1
16-bit words, count from header
<rvptsPulseHdr #2>
Variable size, even
Pulse Data #2
16-bit words, count from header
...
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