HaLo - Hardware in the Loop Simulation Platform for Matlab and Simulink
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The "Hardware in the Loop" concept allows cost efficiency in the design of future wireless systems.
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- HaLo 230 Hardware in the loop platform
Principle
The “Hardware in the Loop” concept enables a cost efficient wireless system design for future wireless systems. It addresses the problems within the algorithm design stage and provides the designer with a toolkit for early proof-ofconcept R&D. Built upon Signalion’s flexible and scalable hardware platform, HaLo is a system especially designed for seamless integration in the Matlab/Simulink and C-based design flows. No hardware programming is needed by the user to setup a HaLo transmission. HaLo allows the designer to transmit simulated signals over an air-interface, to receive them, and to send them back to Matlab/Simulink simulation environment. With this approach the designer faces all problems of real world transmission, such as channel estimation errors, RF-impairments, and real world radio channel characteristics already in the first design phase. These are issues that cannot be realistically covered by pure simulations.
Therefore, many of the potential design faults and limitations can be discovered at this early stage of the design fl ow by using the HaLo system. The easy-to-use programming interface also makes HaLo a perfect tool for education and academic research. HaLo supports a wide range of applications as a
- Wireless Signal Monitoring Tool
- Arbitrary Waveform Generator
- Wireless System Simulation/Prototyping System
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- HaLo 220
HaLo-Arbitrary Waveform Generator
In this mode, HaLo serves as a waveform generator that transmits an arbitrary waveform with a bandwidth up to 20MHz. The signal can be either transmitted periodically or on certain trigger events. HaLo-Wireless Signal Monitoring Confi gured as a receiver, HaLo records the baseband waveform of a received RF-signal. This signal can be fed into simulations to further analyze the characteristics.
HaLo-Wireless System Simulation/Prototyping
The HaLo system simply replaces the channel model within the Simulation. Two HaLo devices simulate both the Transmitter and the Receiver of the wireless link. Simulation of an ad-hoc network with many terminals is possible using multiple HaLo systems.
Seamless MATLAB/Simulink integration offers plug’n play operation
HaLo offers Plug & Play interconnection to PC via USB 2.0 with any PC. An ‘easy to use’ application programming interface (API) enables seamless integration of the hardware into your simulation environment just by means of two functions (halo_transmit, halo_receive). Currently MATLAB/Simulink and C are supported by the API. Signal bursts are periodically transmitted. Measurements of the received signals can be done on user request
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- HaLo principle