and for
ap to 5
h as the
] carto-
s carry-
te 140),
by the
is plani-
m pixel
Figure TP?
hrs e SHOWS, Sat remote sensing is a system to obtain object information by indirect
T aC genes y ; lizing natural energy radiation and consisting of system components such
: platform for data acquisition, data processing and analysis to obtain the object infor-
" mation.
FIGURE 4: SENSORS
Fig. 4
2.] SENSORS
SPECTRAL SPATIAL RANDOM
RESOL. RESOL. RES.
nm mrad bit
(1) OPTICAL 1 PHOTOGRAPHIC CAMERA
— BLACK & WHITE À =400 - 700 nm)
— COLOR 3(A = 100nm);5 0,02 6
mrad bit
— MULTISPECTRAL & 220nm ; J LFC
2. SCANNER (MULTISPECTRAL) | 4-z20nm ; 0,04 8
—— mrad bit
; . LANDSAT TM
3. CCD-ARRAY - A= 100nm ; 0,01 8
n mrad bit
enm : SPOT
(2) NEAR INFRARED — 1. CAMERAS
—IR FILMS SEE 1)
— FALSE COLOR IR FILM
2. SCANNER
3. CCD- ARRAY UNDER DEVELOPMT FOR 1-2 ym
(3) THERMAL INFRARED
2. SCANNER As8-14um ; 0,16 8
€—À— mrad bit
LANDSAT TM
(4) MICROWAVE
4. ACTIVE RADAR pulse:
— L BAND - BRUTE À =30 cm) 3m a
— C BAND FORCE Asgom LO COT 6
—X BAND -COHERENT A=3cm | 25m bit
satellite
SEASAT, SIR
|: Figure 4 summarises the existing sensor types in the optical, near infrared, thermal and
microwave ranges of the electroma gnetic spectrum with their achievable resolutions
38
FORSTER FERNER I MN NUT E E m DR MG