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The Power of Direct Spatial Antenna Modulation (DSAM)

Altamira has developed and patented a novel framework and approach to controlling antenna arrays that allows not only power pattern control, but also destruction of information as a function of angle at the electromagnetic wave level. This ability to utilize Spatial Information Control (SIC) is a significant departure from traditional antenna array technologies, which preferentially direct or receive RF energy but do not act on the contained information. The ability to control the angular transmission or reception of information, in addition to the array power pattern, enables significant performance improvements in secure communications. SIC technology can be implemented in conjunction with existing protocols, waveforms, spread spectrum and cryptologic systems without impairment.

DSAM Secure Communications
DSAM Secure Communications is next generation technology that enables secure communication in a truly unprecedented manner. Traditional secure communications relies encryption and complicated waveform techniques, and require significant coordination and processing resources at both end of the link. DSAM allows information to be sent in a trusted direction, while the information is corrupted at the physical wave level when received from any other unauthorized angle. This technology can be applied on top of an existing secure link granting added security in unauthorized directions and allowing nominal operation in the intended direction.  Uniquely this technology can also be applied to communications when only a single side of the link is controlled, enabling increased communications security in situations inaccessible to traditional techniques.

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DSAM Spatial Information Control (SIC) technology enables groundbreaking spatially selective anti-jam and interference mitigation capabilities. Traditional Anti-Jam Antenna Systems (AJAS) attempt to steer array pattern nulls towards a jamming source, but are limited to a fixed number of nulls and are only able to target jamming signals after they are identified. Advanced Spatial Information Control is capable of reducing jamming and interference power by an order of magnitude for an unlimited number of jamming and interference sources, including spectrally matched and coherent repeaters that traditional systems are unable to identify as hostile.

DSAM Geo Breaker
DSAM Spatial Information Control (SIC) Geolocation Prevention is next generation technology that degrades adversary abilities to perform direction finding and protects US military forces by preventing emitter geolocation. Geo breaker leverages Altamira’s groundbreaking ability to controllably and reconfigurably alter the information content and spectral properties of an RF transmission seen in different directions. Each adversary intercept site receives a uniquely corrupted version of the true transmission, implemented to reduce the cross-correlation of each intercept, preventing Time Difference of Arrival (TDOA) techniques from being effective.

DSAM Geo Breaker also prevents Angle of Arrival (AoA) geolocation techniques, with the unique ability to send different spectral content, and a spatially varying Doppler shift in directions away from the intended receiver. Adversary intercepts at different locations will fail to align in frequency or occupied bandwidth, preventing independent AoA solutions from combining to produce a positional fix.
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For more information on DSAM or any of Altamira’s products or capabilities, please contact us today at (703) 813-2100.