synchronization for minor frame of any kind of a new formatter system with low hardware
patterns, we can process all downlink format. dependency.
Paying attention to this facts,we have developed
HD 1 Minor frame (29. 16 zsec) 256 bit i —
0 * (VT FR Preamble (1010---) *2 IV TIR Preamble (1010---)
(8Y| (24) (6 X16) @; (24) (6 x16)
€: | |
i i o | o I o o
1 i | I l
ju doe 54 © | we ° |
4 VTIR Preamble (1010---) VTIR Preambla line eme 30bit
"uw
E
MES MES | MES | MES MES | MES |MES | MES rw
5 VTIRIA-DIA-DIA-DIA-D VTA4RI A-DÍ| A-DIA-—-DTA-D Is
1 2 3 4 5 6 7 am
w
eo
ng E
MES | MES |MES ES MES |MES |MES |MES ©
6 VTIRIA-DIA-DIA-—DIA-D V'TiRlA-D|A-D|A4—D1lA-—D T€
9 10 11 12 13 4 15 16 6
i be. i =
o o | o o E
| ge
| eo
o i o o I o ex
i ! | @
MES | MES |MES | MES MES | MES | MES | MES =
250 VTIRIA-D!A-D A-DIA-D V'TIRIA-DIÍA-DIA-DIA-D =
2033 2034 2035 2036 2037 2038 2039 2040
MES | MES-IMES |IMES MES | MES |MES |MES
260 VTIRI A-D|A-D|A-D|A-D VTIRI A-D| A-D|IA-D|A-D
2041 2042 2043 2044 2045 2046 2047 2048
VIS| IRIIVIS IR2]VISIIR3
(8) (8) (8) (8) (8) (8)
*1:MNFS Minor Frame sync pattern signal 7bits (1011000)
TLM signal 1bit
*2:MNFS Minor Frame sync pattern signal 7bits (reversed) 0100111 +
TLM signal 1bit
*3:Line sync pattern code (30bits) 11111010 ,11110011, 0110100 ,000000
Fig.2 : Downlink data format of MOS-1 MESSR/VTIR
209
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B1. Vienna 1996