restart
Syntax
Description
Examples
Manual Simulation of Satellite Scenario
Create a satellite scenario object and set the AutoSimulate
property to false
to enable manual simulation of the satellite scenario.
sc = satelliteScenario('AutoSimulate',false);
Add a GPS satellite constellation to the scenario.
sat = satellite(sc,"gpsAlmanac.txt");
Simulate the scenario using the advance
function.
while advance(sc) end
Obtain the satellite position histories.
p = states(sat);
AutoSimulate
is false
, so restart the scenario before adding a ground station.
restart(sc);
Add a ground station to the scenario.
gs = groundStation(sc);
Add access analysis between each satellite and ground station.
ac = access(sat,gs);
Simulate the scenario and determine the access intervals.
while advance(sc) end intvls1 = accessIntervals(ac)
intvls1=35×8 table
Source Target IntervalNumber StartTime EndTime Duration StartOrbit EndOrbit
________ ___________________ ______________ ____________________ ____________________ ________ __________ ________
"PRN:1" "Ground station 32" 1 11-Jan-2020 23:20:25 12-Jan-2020 05:15:47 21322 NaN NaN
"PRN:2" "Ground station 32" 1 12-Jan-2020 04:03:16 12-Jan-2020 07:48:06 13490 NaN NaN
"PRN:3" "Ground station 32" 1 11-Jan-2020 19:50:06 11-Jan-2020 21:38:53 6527.3 NaN NaN
"PRN:3" "Ground station 32" 2 12-Jan-2020 01:52:43 12-Jan-2020 06:42:49 17406 NaN NaN
"PRN:4" "Ground station 32" 1 11-Jan-2020 19:50:06 12-Jan-2020 00:11:11 15665 NaN NaN
"PRN:4" "Ground station 32" 2 12-Jan-2020 04:54:02 12-Jan-2020 07:48:06 10444 NaN NaN
"PRN:5" "Ground station 32" 1 12-Jan-2020 05:52:03 12-Jan-2020 07:48:06 6962.4 NaN NaN
"PRN:6" "Ground station 32" 1 12-Jan-2020 02:43:29 12-Jan-2020 07:48:06 18276 NaN NaN
"PRN:7" "Ground station 32" 1 11-Jan-2020 21:09:52 12-Jan-2020 03:27:00 22628 NaN NaN
"PRN:8" "Ground station 32" 1 11-Jan-2020 20:33:36 12-Jan-2020 03:19:45 24369 NaN NaN
"PRN:9" "Ground station 32" 1 11-Jan-2020 19:50:06 12-Jan-2020 00:47:27 17841 NaN NaN
"PRN:9" "Ground station 32" 2 12-Jan-2020 05:08:32 12-Jan-2020 07:48:06 9573.3 NaN NaN
"PRN:10" "Ground station 32" 1 12-Jan-2020 00:32:56 12-Jan-2020 01:59:58 5221.8 NaN NaN
"PRN:11" "Ground station 32" 1 11-Jan-2020 22:15:09 12-Jan-2020 04:39:32 23063 NaN NaN
"PRN:12" "Ground station 32" 1 12-Jan-2020 04:32:16 12-Jan-2020 07:48:06 11749 NaN NaN
"PRN:13" "Ground station 32" 1 12-Jan-2020 00:03:56 12-Jan-2020 02:50:44 10008 NaN NaN
⋮
Visualize the simulation results.
v = satelliteScenarioViewer(sc,'ShowDetails',false);
play(sc);
Verify that the access intervals are the same when you set the AutoSimulate
property to true
.
sc.AutoSimulate = true; intvls2 = accessIntervals(ac)
intvls2=35×8 table
Source Target IntervalNumber StartTime EndTime Duration StartOrbit EndOrbit
________ ___________________ ______________ ____________________ ____________________ ________ __________ ________
"PRN:1" "Ground station 32" 1 11-Jan-2020 23:20:25 12-Jan-2020 05:15:47 21322 NaN NaN
"PRN:2" "Ground station 32" 1 12-Jan-2020 04:03:16 12-Jan-2020 07:48:06 13490 NaN NaN
"PRN:3" "Ground station 32" 1 11-Jan-2020 19:50:06 11-Jan-2020 21:38:53 6527.3 NaN NaN
"PRN:3" "Ground station 32" 2 12-Jan-2020 01:52:43 12-Jan-2020 06:42:49 17406 NaN NaN
"PRN:4" "Ground station 32" 1 11-Jan-2020 19:50:06 12-Jan-2020 00:11:11 15665 NaN NaN
"PRN:4" "Ground station 32" 2 12-Jan-2020 04:54:02 12-Jan-2020 07:48:06 10444 NaN NaN
"PRN:5" "Ground station 32" 1 12-Jan-2020 05:52:03 12-Jan-2020 07:48:06 6962.4 NaN NaN
"PRN:6" "Ground station 32" 1 12-Jan-2020 02:43:29 12-Jan-2020 07:48:06 18276 NaN NaN
"PRN:7" "Ground station 32" 1 11-Jan-2020 21:09:52 12-Jan-2020 03:27:00 22628 NaN NaN
"PRN:8" "Ground station 32" 1 11-Jan-2020 20:33:36 12-Jan-2020 03:19:45 24369 NaN NaN
"PRN:9" "Ground station 32" 1 11-Jan-2020 19:50:06 12-Jan-2020 00:47:27 17841 NaN NaN
"PRN:9" "Ground station 32" 2 12-Jan-2020 05:08:32 12-Jan-2020 07:48:06 9573.3 NaN NaN
"PRN:10" "Ground station 32" 1 12-Jan-2020 00:32:56 12-Jan-2020 01:59:58 5221.8 NaN NaN
"PRN:11" "Ground station 32" 1 11-Jan-2020 22:15:09 12-Jan-2020 04:39:32 23063 NaN NaN
"PRN:12" "Ground station 32" 1 12-Jan-2020 04:32:16 12-Jan-2020 07:48:06 11749 NaN NaN
"PRN:13" "Ground station 32" 1 12-Jan-2020 00:03:56 12-Jan-2020 02:50:44 10008 NaN NaN
⋮
Visualize the scenario.
play(sc);
Input Arguments
sc
— Satellite scenario
satelliteScenario
object
Satellite scenario, specified as a satelliteScenario
object. The argument applies only if the AutoSimulate
property of the sc
object is
false
.
The timeline and playback widgets on the open satellite scenario viewers that were
previously made available after calling the play
function become
unavailable for interaction.
Version History
Introduced in R2022a
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