International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B4, 2012
XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia
Orbital characteristics PSS MSS
Orbit type Circular, Characteristic
sun- Spectral bands 1 4
nn sychronous Spectral bands (with level 0,5),
Orbit height, km 510 imkm
Inclination, degr oes. 97,447 Panchromatic (0,52—0,85)
Satellite characteristics Blue (0,54-0,6)
Weight, kg 400 G 0.630,69)
Payload weight, kg 110 fee ae 0.
Lifetime, years 5-7 Red (0,69-0,72)
Orientation accuracy Not more than Near IR (0,75-0,86)
5 arc seconds Focal length, mm 1797.5 359,5
Maximal roll, pitch angles, degrees + 40° Relative hole 1:10,3 1:5,6
Orientation accuracy, arc seconds 5 Transmittance 0,7 0,6—0,8
Revisit time, days 15 Matrix size, pixels 1920x985 |1920x985
Payload equipment characteristics Nadir shooting
quantization width, bits 12 span width, km 23.3 20.1
GSD, m 2,1 10,5
On board storage 2460 Ground resolution, m
Information storing time Not less than 2
5 days 2.7 12
Radio link quantization width, bits 8 Shooting square, square km 45,3 (6195
frame
Data transmission radiochannels 2 : co frog ento) :
Bandwidth 61,44 or Table 2 Main characteristics of panchromatic and multispectral
122,88 Mbit/s
Time maximal error
Not more than
0,1 ms
Payload work time on one round
Shooting 700
sec and 700
sec
transmitting
data
Table 1 Main technical characteristics of “Canopus-V” satellite.
Shooting scheme is shown on figure 2.
Figure 2. Shooting scheme of “Canopus-V” satellite.
Payload equipment consists of two sensors — panchromatic
(PSS — panchromatic shooting sensor) and multispectral (MSS
— multispectral shooting sensor) which allow to get image in
four spectral bands — near infrared, red, green, blue. Shooting
may be done simultaneously in panchromatic and multispectral
modes and also with different combinations of spectral bands or
only in one spectral band. Main technical characteristics of PSS
and MSS sensors are shown in table 2.
Sensors.
MSS sensor geometry is frame camera sensor, but if has some
feature — it CCD matrixes for different spectral bands dispersed
in focal plane (see figure 3). With this feature multispectral
images may be done only in overlapped areas during satellite
movement. But technology of multispectral synthesis will be the
theme of another article.
Y 13,74. MM
1 2 3| «|
L 49176404
Figure 3. MSS micromatrix placement in focal plane.
This work will be devoted to processing technology of PSS
sensor data.The main feature of PSS sensor — it is done from
different CCD micromatrixes. Scheme of matrix placement is
shown on figure 4.
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Eau 3 x
54: 6 19
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Figure 4. PSS micro matrixes placement in focal plane.
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