DSTA designed and developed the integrated Remote Weapon Display (iRWD) system that links sensors, the Air-Land Tactical Control Centre and air defence firing units in a tight formation, enabling more responsive and effective air defence operations.

With the iRWD, the firing unit now has an air situational awareness beyond what it can see, providing it with an early warning capability. The iRWD is capable of communicating directly with the weapon to provide cue on the target, thereby shortening the reaction time for the operators to acquire the target.

In designing the iRWD system, the DSTA team balanced conflicting requirements between sufficiently ruggedising the system for use when it is mounted on vehicles, and at the same time keeping it lightweight such that it can be carried around by the operators. To achieve optimal weight, the hardware of the ruggedised computers was miniaturised. Military-grade connectors were also employed so that the computers can withstand the rough terrain.

The team found it more cost effective to design a common modular system that can fit into two different types of vehicles. Thus, the solution was developed to be scalable and independent of the type of weapon or vehicle used. Together with the operators, the team employed rapid prototyping approach to evolve the user interface design, delivering a user-friendly system with effective man-machine interface.

By using a software architecture that is common to existing in-house developed systems, the team reused relevant software components that had been tested to shorten software development time, allowing more time for thorough system testing. The team also came up with the initiative to incorporate remote radio control functions on the iRWD display console, thus shortening the response time to switch frequency during operations.