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Electronic Warfare Analysis Paper

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Electronic Warfare Analysis of Army SINCGARS Radios Operation tempo in cyber and electronic warfare can be described by the OODA (Observe Orient Decision Action) loop decision making process (Pace). The steps occupy a logical order of electronic attack or defense. First, a particular electromagnetic characteristic is observed by either human or electronic operators. For example, a spike in a frequency known to be used by the enemy, indicating a potential target for electronic attack, or a sudden increase in noise on friendly systems which could indicate jamming by an adversary. Orientation is the allocation of resources to either exploit or counter the observed characteristic, such as reconfiguring analog or digital tuners, clocks, or filters …show more content…

The system operates in the VHF band of 30 to 88 MHz, segmented into 2320 25 kHz channels. SINCGARS radios are also able to operate in a frequency hopping mode, with a rate of 111 hops per second along its 58 MHz bandwidth, and holding all other factors constant, this gives a static OODA loop operational tempo of 9 ms. The typical radio has a worst-case sensitivity of -110 dBm, as given by the manufacturer, with a typical value of -116 to -120 dBm. Adjacent channel isolation is 45 dB, so interference will be ignored in the analysis …show more content…

This would render conversation intelligible, as every second of transmission would include a static burst that would cause information to be lost. In mathematical terms, this means the 25 kHz wide jamming signal must sweep through the entire bandwidth every second. With 2320 channels, this yields a required tempo for the jammer as: 0.43 ms. The required operational tempo to effectively jam the SINCGARS radio is much higher than operational tempo required to frequency hop. This can be explained by looking at the bandwidth cost for the hopped radio and the swept jammer. The radio hops 111 times per second, with each hop being a distinct channel, but has 2320 channels to choose from. Each second only uses a small part of the total bandwidth, specifically 2.7 MHz out of an available 58 MHz. In contrast, the jammer is blind to the hop pattern, and must sweep over the entire 58 MHz once a second to have a chance of interrupting at least one

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