Inrush Current Control Technology Boosts Power Converter Reliability

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System Development Figure 3 The Sidewinder Vehicle Mount unit equips vehicles that do not have communications capability with tactical radios operating in the SRW network. Used in conjunction with the networking AN/PRC-154 Rifleman radio, the Sidewinder quickly transitions the radio from a body-worn radio. Side Hat Radio, Harris AN/PRC-117G, and the Northrop Grumman Freedom radio. Putting JTRS through its Paces According to the JTRS JPEO, the objective of the field exercise was to evaluate the effectiveness of recent SRW patches and parameter updates on platform interoperability and performance in a field environment. Both static and mobile configurations were examined. Each vendor provided multiple radios, which permitted the formation of networks containing up to 14 nodes. Initial test results indicate that all participating radios were able to form a network and exchange Internet Protocol (IP) data and Combat Network Radio (CNR) voice in an interoperable manner. This SIQ test provided initial validation of SRW’s ability to interoperate across multiple radio platforms. The SR- WNM also successfully monitored the configured network throughout the testing, enabling critical insight to the health and status of the heterogeneous SRW network. The success of these tests have been touted by officials as a win for the JTRS business model. That model was a paradigm shift for defense communications in its move away from sole source, [ 52 ] COTS Journal November 2011 stove-piped, point-to-point proprietary systems to a highly competitive, interoperable, networking environment. Successful completion of the SIQ event lays the groundwork for the upcoming Army’s Network Integration Exercise (NIE) 12.1 as mentioned earlier. Four of the six JTRS radios tested as interoperable over-the-air using SRW during this event will also be participating in that exercise. Priorities of NIE 12.1 are to extend the network to the individual Soldier, advance mission command on the move and continue to establish an Integration Network Baseline. JPEO JTRS plans to continue partnering with Army and commercial developers to conduct JTRS waveform interoperability testing in support of future NIE events. Vehicle Mount Solution Facilitating the vehicle side of SRW JTRS, General Dynamics C4 Systems has built a piece of gear called the Sidewinder Vehicle Mount (Figure 3). The unit equips vehicles that do not have communications capability with tactical radios operating in the Soldier Radio Waveform (SRW) network. An accessory for the networking AN/PRC-154 Rifleman radio, the Sidewinder quickly transitions the radio from a body-worn radio to a vehicle-mounted radio, augmenting its power and extending its range. Just as quickly, the Rifleman radio can be removed from the Sidewinder while maintaining connectivity with the tactical network. The Sidewinder’s hardware assembly includes the 20W power amplifier from another JTRS HMS radio, the AN/PRC- 155, and connectors that work with the vehicle’s existing intercom systems and are compatible with standard mounting trays that most vehicles already have in place. The Sidewinder/Rifleman radio combination has been selected by the Army for evaluation at the upcoming NIE 12.1 event. WNW Software Support Another critical JTRS waveform, Wideband Networking Waveform (WNW) has undergone significant developments. WNW does the heavy lifting needed to quickly and efficiently move large amounts of data from the core of the network to the tactical edge. Last month General Dynamics C4 Systems was awarded the Wideband Networking Waveform Software In-Service Support contract by the U.S. Navy’s Space and Naval Warfare Systems Center, to support, maintain and add new capabilities to the Wideband Networking Waveform (WNW). WNW provides the bandwidth capacity needed to move large amounts of data through the U.S. military’s tactical network. The five-year, indefinite delivery, indefinite quantity contract has a maximum potential value of $64.5 million if all options are exercised. Software support and maintenance will increase reliability and improve performance of WNW software thus increasing capabilities within the tactical network. Planned WNW enhancements include increased scalability and throughput adding capability for commanders while on the move. WIN-T Rolls Forward A step up in scope from JTRS is another key military networking program: the Warfighter Information Network – Tactical (WIN-T). WIN-T is the Army’s on-the-move, high-speed, high-capability backbone communications network, linking warfighters in the battlefield with the
Figure 4 Global Information Grid (GIG). This network is intended to provide C4ISR support capabilities. The system is being developed as a network for reliable, secure and seamless video, data, imagery and voice services for the warfighters in the theater to enable decisive combat actions. The WIN-T program consists of four increments. Last year the Army awarded General Dynamics C4 Systems a contract to enable a General Dynamics-led team to begin Low Rate Initial Production of the Warfighter Information Network – Tactical (WIN-T) Increment 2. Increment 2 (Figure 4) equips vehicles with onthe-move broadband communications enabling command and control from anywhere in the battlespace. The fiscal year 2012 procures and continues to field WIN-T Inc 1 to the Army, with a Ka satellite upgrade. WIN-T Inc 2 is currently in Limited Rate Initial Production (LRIP) in anticipation of its Initial Operational Test in FY 2012. WIN-T Inc 3 continues in its Engineering, Manufacturing and Development (EMD) phase to deliver the full networking on the move, including the airborne tier of the program. In March the Army awarded delivery orders to a General Dynamics-Lockheed System Development Two Point of Presence vehicles are shown here during the six-week WIN-T Increment 2 Production Qualification Test-Government (PQT-G) event this summer at Aberdeen Proving Ground, Md. Martin team to procure Warfighter Information Network – Tactical (WIN-T) Increment 2 systems for five additional brigade combat teams (BCTs). The Army has now ordered Increment 2 systems for a total of eight BCTs under a three-year contract that was awarded in March 2010. The first WIN-T Increment 2 fielding is scheduled to take place this month. General Dynamics C4 Systems Scottsdale, AZ. (480) 441-3033. [www.gdc4s.com]. Lockheed Martin Bethesda, MD. (301) 897-6000. [www.lockheedmartin.com]. ViaSat Carlsbad, CA. (760) 476-2200. [www.viasat.com]. OceanServer Digital Compass Products: • Low Cost Family of Electronic Compasses • Solid State Package • High Accuracy Offered in Serial, USB or TTL • Under $200.00 in Low Volume • Hard & Soft Iron Calibration • Fully Engineered Solution For Embedded Applications ocean-server.com (508)-678-0550 November 2011 COTS Journal [ 53 ] Untitled-9 1 1/12/10 10:03:31 AM
Page 1 and 2: Volume 13 Number 11 November 2011 A
Page 3 and 4: 10 The Journal Journal of Military
Page 5 and 6: DEVELOPING GRAPHICS ON-TIME AND ON-
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