Many communication systems face significant spectral challenges. On the one hand, communication systems are required to transmit a lot of information at a high rate over long ranges, often as part of multi-participant communication networks. On the other hand, they are required to deal with a natural resource that is in perpetual scarcity – the spectrum. Similar challenges apply to other spectrum dependent systems, such as radars and GNSS systems.
The allocation of frequency ranges to spectrum-consuming systems is subject to regulatory approval from the Ministry of Communications. In many cases the regulator does not allow the use of the same frequency range for multiple systems (civilian or military) for fear of mutual interference, which may prevent the systems from operating properly and undermine their operational effectiveness.
The allocation of spectrum to systems should also consider the spectral environment, which may include neighboring countries and other spectrum-consuming entities in the region that have an extensive impact on the spectrum in the State of Israel.
The Israel Defense Forces (IDF) has defined a new concept: "spectral superiority." The term describes the combined actions and means required to create spectral freedom of action on a multidimensional battlefield. Freedom of action is achieved by maximizing the spectral resource in both force buildup and the use of force, allowing flexibility and availability from the operational level to the strategic level. The spectrum is a common medium for a large part of operational systems and missions, having great impact on all those present in the battlefield, from friendly to enemy forces.
In our evolving world, when many systems must use the electromagnetic medium to enable mobility, the spectral medium becomes a scarce resource. We must therefore allow freedom of action to use the spectrum while reducing physical limitations. For instance, many "emergency systems" hold spectrum slices which are rarely used, which is highly inefficient.
Other systems use hopping features (time-hopping / frequency-hopping on a relatively wide spectral slice). Further communication systems utilize only a few percent of the spectral allocation, thereby holding unused "real estate." For example, there are certain radars that are allocated a relatively wide frequency range that is not always fully utilized, even though reducing the frequency allocation may reduce adverse effects on other radiating systems.
Coping in the Immediate Term
Solutions for limited ground areas in the real estate world are often based on building high-rise towers. Similarly, the solutions offered by Omnisys allow different systems to operate in the same frequency slice ("ground area") in the spectral medium. Omnisys allows this through technological capabilities, the use of advanced tools, operations research, “system of systems” engineering, and algorithm development.
The company's technological innovation is characterized by the ability to coordinate between different types of systems in terms of time, spatial location, frequency, waveform, and polarization. Omnisys has proven in its R&D efforts, using advanced modeling methods, that it is possible to combine on the same frequency slice the operations of several systems not currently sharing a common frequency domain.
The solution is based on the use of a new software component –the Smart Network Manager. The role of the network manager is to be a coordinating body between the systems within the framework of regulations and under predetermined conditions. The network manager can act passively or actively. In the first case it verifies coexistence without actual intervention.
In the second case it performs active intervention – shutting down the system, changing frequencies and intensities, and changing modulation – as much as the system’s functionality allows.
This component was developed and tested in a system integration laboratory, which allows: examining the coordination between systems in both daily working conditions and in extreme conditions; verifying the level of compatibility with real scenarios; and making use of the systems in various situations.
Omnisys develops mission planning, management and debriefing systems. The company’s groundbreaking BRO line of battle resource optimization products optimizes mission performance for diverse multi-domain missions in general, and spectrum-related missions in particular. Improving critical decision-making, Omnisys systems have been tested and proven in combat conditions and are sold to leading armed forces around the world.
Omnisys’ empowering technologies are changing the rules of the game in the evolving battlefield, ensuring real-time success in the face of tomorrow’s challenges.