LDI DIGISONDE 4D - Page 243

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DIGISONDE-4D
SYSTEM MANUAL
VERSION 1.2.11
5-46 SECTION 5 - SYSTEM SOFTWARE – ANNEX A
a) 1
st
dimension is Number of Polarizations
b) 2
nd
dimension is Number of Heights to Sample. It is equaled to Number of Ranges if measure-
ment program parameter NRO (Number of Ranges to Output) is zero, otherwise it is equaled to
NRO.
c) 3
rd
dimension is Number of Antennas
d) 4
th
dimension is Number of Dopplers (= Number of Integrated Repeats)
3. Layout of Data: two dimensional array of Doppler Frequency Groups, where
a) 1
st
dimension is Number Of Coarse Frequency Steps or Number of Fixed Frequency repeats
b) 2
nd
dimension is Number Of Fine Frequency Steps
D. Ionogram Data Structure
5:112. We have this Data Structure after Ionogram Calculation process. The following is true for this struc-
ture.
1. Group is Ionogram Frequency Group
2. Layout inside of Ionogram Frequency Group: two-dimensional array of Ionogram Databins, where
a) 1
st
dimension is Number Of Polarizations
b) 2
nd
dimension is Number of Heights to Sample
3. Layout of Data: two dimensional array of Ionogram Frequency Groups, where
c) 1
st
dimension is Number of Coarse Frequency Steps
d) 2
nd
dimension is Number of Fine Frequency Steps
Table 5A- 23: Raw Databin, Length 4
Byte
Offset
Byte
Len
Mnemonic
Description
Units
Type
Range
0
2
RE
Real part of quadrature, from 0 to 65535
-
INT16U
0... 65535
2
2
IM
Imaginary part of quadrature, from 0 to 65535
-
INT16U
0 ...65535
Table 5A- 24: Doppler Databin Format, Length 4
Byte
Offset
Byte
Len
Mnemonic
Description
Units
Type
Range
0
2
AMP
Amplitude, in linear scale, from 0 to 65535
-
INT16U
0... 65535
2
2
PH
Phase, from 0 to 360, but not including 360
360/65536 deg
INT16U
0 ...65535