EB_Propsim_C8_option_overview_Aerospace

OPTION OVERVIEW:
EB Propsim C8 ASO testing solution
Wideband Multichannel Emulator
EB Propsim C8
ASO (Aerospace and Satellite
modeling tool Option) is a unique
modeling tool for aerospace, aviation,
defense and satellite applications.
The wireless system research and
development for air and space
applications sets different challenges for
the transceivers and receiver functionality
versus terrestrial applications due to
different radio propagation environment.
In air and space applications the
platforms with radio installations are
typically exposed for relatively high
velocities and high accelerations
including multipath propagation,
interference, dynamic path
attenuation/loss, fast fading and slow
fading phenomena.
These platforms are typically
communicating to the ground or other
platforms in a space or air. The range of
different applications is wide and there
are variety of systems utilizing the radio
channel e.g. point-to-point, point-tomultipoint
high speed data applications,
broadcasting applications, a set of
different radar applications, radar
jamming and communication jamming
and platform control communications to
name a few.
The common problem setting for these
applications and systems applies: how to
perform realistic and accurate application
and system evaluation, testing,
optimization and verification on different
scenarios in laboratory conditions?
The EB Propsim C8 radio channel
emulator equipped with Aerospace and
Satellite modeling tool provides a unique
emulation capabilities enabling users to
implement and run the test scenarios in
realistic environments in laboratory
conditions with the highest accuracy and
repeatability available.
Figure 1. Multi-user test scenario
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OPTION OVERVIEW:
EB Propsim C8 ASO testing solution
Wideband Multichannel Emulator
EB Propsim C8
Aerospace and Satellite modeling tool Option (ASO) is a
radio channel modeling tool facilitating emulation of special
communications environment including real Doppler effects in
frequency and code domain.
Typical application areas for ASO are space-, satellite-,
aircraft communication, missile control, radars, radar jammers
etc. ASO tool can be utilized for emulating radio channels for
almost any air-to-air, ground-to-air radio channel links.
Key features for ASO tool includes:
! Support and illustration of user defined dynamic channel
models based on geometry between transceivers and
reflectors.
! Creating channel models with periodic curves.
! User can specify
o Minimum Doppler
o Maximum Doppler
o Period of model
o Min delay of model
o Sinusoidal, triangular or linear Doppler
Figure 2. ASO modeling tool graphical user interface,
dynamic route with dynamic multipath positions.
! Creation of Doppler model curves:
o Periodic sinusoidal
o Triangle
o Linear
! Visualization of custom emulation models:
o Transmitter locations
o Receiver locations
o Speeds of transmitters and receivers
o Position of multipath reflectors
The EB Propsim C8 ASO testing solution supports emulation
of ASO channel models and emulation of other EB Propsim
C8 channel models with same unit. See Technical data for
more details.
Figure 3. Steps for ASO emulation in EB Propsim C8.
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OPTION OVERVIEW:
EB Propsim C8 ASO testing solution
Wideband Multichannel Emulator
EB Propsim C8
Example Applications and use cases
Commercial Aviation – Wireless broadband for in-flight
services
The fast deployment of wireless broadband coverage to the
aircrafts and jet’s sets challenges for network developers and
operators. Excessive amount of testing, optimization and
verification in a single-link and multilink level is needed in
order to provide reliable high speed data links at cruising
altitudes for the passengers.
conditions in link and multilink level as well include the enduser
devices via gateway radio with realistic indoor
environment to the whole test scenario setup.
The test case scenarios for base station and gateway radio
link are typically implemented to test maximum / minimum
curves for Doppler and Range or the scenarios can be based
on real routes of the aircraft’s. In addition to geometry based
information of the radio channels the radio link can be further
measured with system specific scanners, channel sounder or
signal recorder to model all radio channel conditions during
the flight route. The radio environment for each test
scenarios can be stored to the library and repeated when ever
needed with the 100% repeatability from radio environment
point of view.
Figure 4. Aircraft cruising over the broadband cellular
network.
The wireless systems could be based on similar infrastructure
as in terrestrial cell networks but cell beams are covering the
airline routes instead of terrain. Typically there is a gateway
radio installed into aircraft or jet. The gateway covers the enduser
devices inside the aircraft.
The benefits of testing most of the network elements with
end-user devices in laboratory conditions are obvious. 100%
repeatability of test case scenarios, fast implementation of
test case scenarios, fast change of test case scenarios,
utilization of the field measured route data etc. are the
methods that shortens remarkably the development cycles
and deployment of the network elements and applications.
The amount of field testing can be reduced remarkably.
The EB Propsim C8 emulation platform supports the radio
channel emulation for multiple systems and it is possible to do
multi-system testing in realistic environment with the same
tool.
The links between the gateway and ground base stations
needs to be verified, the transceiver must handle high
Doppler and range while the core network must control the
handoffs between cells and payload optimization for multiple
users at multiple aircrafts. The wireless coverage inside the
aircraft has to be verified also with the proper indoor radio
channel models in a link level and multi-user test case
scenarios.
With the EB Propsim C8 ASO emulation solution system
developers and engineers are able to do the air-to-ground-toair
network elements testing and optimization at laboratory
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OPTION OVERVIEW:
EB Propsim C8 ASO testing solution
Wideband Multichannel Emulator
EB Propsim C8
Aerospace and Satellite
- Critical communication links verified
The Aerospace applications require today multiple wireless
high speed data communication links between a spacecraft
and a ground station and satellites. With the EB Propsim C8
ASO solution it is possible to recreate environments in the
laboratory. This enables testing the performance of
communications systems during the critical stages of launch,
flight, space station docking procedures and landing of a
spacecraft.
Transceiver
TRX 1
Transceiver
TRX 3
Transceiver
TRX 2
Transceiver
TRX 4
Transceiver
TRX 5
Figure 7. The mesh network scenarios can be tested in
realistic environment with all radio propagation phenomena
included to the testing by using EB Propsim C8 ASO testing
solution.
Figure 5. Launch.
The launch of the spacecraft is critical and therefore it is
inevitable to ensure the functionality of the communication
links. The functionality of critical communication systems
needs to be ensured prior to the launch. During the launch
the spacecraft is exposed to very high relative accelerations,
dynamic and variable path attenuation and interferences.
Figure 8. User interface of EB Propsim C8 ASO testing
solution, ASO periodic channel models.
Figure 6. Docking.
In docking scenarios the spacecraft radar is used to measure
and control the spacecraft approaching to the docking station.
The high range accuracy is needed to make sure that the
docking will success without crashes.
The communication links in space between human and
spacecraft, lunar module or docking station has to be secured
and tested prior the launch. Typically the communication
network is so-called Mesh / Ad-hoc mobile network where
multiple radios are communicating with each other.
Figure 9. User interface of EB Propsim C8 ASO solution, EB
Propsim C8 standard emulation.
The EB Propsim C8 emulation platform supports the radio
channel emulation for multiple systems and it is possible to do
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Radio tower
Radio tower
Radio tower
OPTION OVERVIEW:
EB Propsim C8 ASO testing solution
Wideband Multichannel Emulator
EB Propsim C8
multi-system testing in realistic environment with the same
tool.
Defense - Data communication, radar and jamming
The amount of wireless applications in defense and in military
is wide, basically all environments from space to underground
are utilized some how. The EB Propsim C8 ASO testing
solution is powerful tool to perform realistic radio channel
emulation in these environments.
The jammer performance of fighter can be developed and
verified against missile radar guidance system. The library of
routes for fighter can be established and the functionality of
jammer algorithms can be compared with 100% same radio
channel conditions. Basically this is not possible to do in a
field. The radio channel conditions between any successive
flight routes are always a bit different.
Radio tower
Figure 12. Missile control.
Radio tower
Radio tower
Figure 10. Tactical network communication scenario.
Most of the scenarios at air-to-air, air-to-ground, ground-to-air
and ground-to-ground conditions can be tested in laboratory
environment with EB Propsim C8 ASO testing solution. EB
Propsim C8 ASO models support wide bandwidth 65MHz.
The terrestrial models are supported up to 100MHz BW.
It is critical to evaluate and test the defense system against
hostile fighters or bombers with different scenarios. The
amount of real missile carrier platform flight tests can be
reduced with a proper set of realistic laboratory testing. The
routes of the hostile can be saved for each scenarios to the
emulator library and run again when needed.
Jamming
Locked ”unlocked/
unknown”
Figure 11. Jamming of locked missile.
Figure 13. Radar applications.
The functionality of radar systems of the fighter in real
environment is critical. The realistic environments for the
fighter radar system can be done with EB Propsim C8 ASO
testing solution. In addition to real time delay and amplitude
control trough all channels, the control of noise interference
and arbitrary (user defined transmit signal) signal can be
utilized in test case implementation.
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OPTION OVERVIEW:
EB Propsim C8 ASO testing solution
Wideband Multichannel Emulator
EB Propsim C8
The emulation of radio channels for antenna beamforming is
supported with multipath propagation, Doppler, noise,
interference and dynamic path attenuation phenomena. Up to
16 antenna element beamformer emulation can be done with
two EB Propsim C8’s. The higher order antenna
configurations can be supported by synchronizing more than
2 EB Propsim C8 units into one test setup.
Figure 14. Multi-link emulations with ASO models.
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OPTION OVERVIEW:
EB Propsim C8 ASO testing solution
Wideband Multichannel Emulator
EB Propsim C8
Technical Data for EB Propsim C8
Number of fading channels up to 16
Number of fading paths
24 paths/ channel when 16 fading channels in use
48 paths/ channel when 8 fading channels in use
Number of physical RF interfaces (IN and OUT) for fading channels up to 8
Emulation interfaces
RF, analog baseband, digital baseband
RF frequency range
350 MHz - 6 GHz
RF bandwidth
70 MHz (100 MHz optional)
RF input level (full range)
-30 to 0 dBm
Adjustable RF output gain
+9 (0dB above 2.5GHz) …-45 dB per channel, adjustable in 0.1 dB steps
ABB input level
up to 630 mV p-p / 0 dBm
ABB output level
up to 630 mV p-p / 0 dBm
DBB input
up to 14 bits
DBB output
up to 14 bits
Path delay resolution
0.1 ns
Path delay accuracy
+/- 1ns
Propagation delay
up to 400 µs (3,2 ms optional)
Delay profiles
Constant, sinusoidal sliding delay, Linear sliding delay, 3GPP birth-death
Channel combining and splitting
Internal, digital
Relative path attenuation
0 - 60 dB
Fading profiles
Constant, Rayleigh, Rice, Nakagami, Lognormal, Suzuki, Pure Doppler, Flat,
Rounded, Gaussian, Jakes, Butterworth, Rice, Arbitrary (with external tools)
Standard channel models
GSM, DCS, TETRA, ITU 3G, JTC, 3GPP standard, 3GPP deployment,
3GPP2 (IS-54, IS-95), 3GPP SCM/SCME MIMO, 3GPP LTE MIMO, WiMAX MIMO
Doppler shift
up to 23 kHz
Playback emulation of measured radio channels
Yes
Import of user defined channel models
Yes
Interference generator
Internal (optional)
Interference signal types AWGN, CW, WCDMA DL, WCDMA UL, GSM, EDGE, 8-PSK, WiMAX, Arbitrary (optional each)
RF local oscillator
Internal
Shadowing
Internal (optional)
Emulation of spatial channels
Yes
Emulation of MIMO channels
Yes
Emulation of 4x4 MIMO channels
Yes
802.11n channel modeling tool Optional
3GPP SCM/SCME channel modeling tool
Optional
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OPTION OVERVIEW:
EB Propsim C8 ASO testing solution
Wideband Multichannel Emulator
EB Propsim C8
Channel Sequence Simulation (CSS)
Aerospace and Satellite channel modeling tool
Interfacing units
Control PC
ATE connections
Power supply
Mechanical dimensions (h x w x d)
Weight
Yes
Optional
WiMAX, LTE, UMTS, Tailored. Each optional
Integrated (external display, keyboard and mouse needed)
Ethernet, GPIB
90 - 240 V, 50/60 Hz, 1500 W
650 x 440 x 580 mm
58 kg
Technical Data for Aerospace channel model emulation in EB Propsim C8 (difference to
standard EB Propsim C8 emulation models)
Number of physical RF interfaces (IN and OUT) for fading channels
Number of fully independent and dynamic fading paths
Independent fading path dynamic
Common fading path dynamic per channel
Emulation interfaces
RF input signal frequency range
up to,8
1 (LOS)+3 (reflectors) paths / channel
0…-30 dB each path independently
0…-45 dB
RF, analog baseband
350 MHz - 6 GHz
The systems above 6GHz are supported by interfacing the intermediate frequency of the system under test or by utilizing
external RF up-/down converters outside EB Propsim C8.
User system frequency
RF bandwidth
Adjustable Propagation delay
Range Rate
Path delay resolution
Path delay accuracy
Acceleration
Delay profiles
Path Delay and Amplitude update rate
Pre-defined fading profiles
Doppler shift
Doppler resolution
Doppler update rate
Doppler profiles
Interference generator
Noise density range
Noise crest factor
Noise resolution
up to 27GHz with external up/down conversion or IF freq. in use
65 MHz (100MHz OPTIONAL)
up to 6.4 ms per path
20 km/s
0.1 ns
+/- 1ns
50 G
Constant, dynamic periodic or user defined
50 kHz
Pure Doppler (3-D LoS), user defined
up to +/-1.25 MHz
0.30 mHz
50 kHz
sinusoidal, triangular or linear, User defined
Internal. AWGN, Arbitrary (each optional). One per channel
-150 to -100 dBm/Hz
Elektrobit System Test Ltd., P.O. Box 45, Automaatiotie 1, FI-90461 Oulunsalo, Finland, Tel.: +358 40 344 2000, Fax: +358 8 570 1301
www.elektrobit.com
Copyright 2008 Elektrobit (EB). All rights reserved. The information contained herein is subject to change without notice. EB retains ownership of and all other
rights to the material expressed in this document. Any reproduction of the content of this document without prior written permission from EB is prohibited.
13 dB
0.1 dB
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