Program Summary
The mathematical function of correlation lies at the heart of virtually all digital signal processing capabilities, enabling systems to compare signals for similarity. But simultaneously scaling correlation for operation at higher frequency, larger bandwidth, and higher dynamic range remains subject to a variety of technical tradeoffs. To eliminate these tradeoffs, the MAX program seeks to develop signal processing architectures capable of a leap ahead in correlator power efficiency without sacrificing bandwidth or high dynamic range operation. The Massive Cross-Correlation (MAX) program will deliver breakthroughs in correlator efficiency and performance, enabling next-generation signal processing that will be integral to modern and future communications, imaging, and sensing platforms.
MAX seeks to develop novel signal processing architectures to achieve 100x improvement in power efficiency and information processing density compared to today’s state-of-the-art digital signal processing systems. Novel signal processing is defined as any approach that is not purely digital, such as analog signal processing, hyperdimensional computing, or hybrid approaches. The MAX program will address key technical challenges including minimizing wasted energy, overcoming dynamic range limitations, and realizing scalable processing gain, to exceed the limits of today’s digital energy-inefficient digital signal processors.
MAX will pursue advanced, small-footprint prototype development of a scalable, highly efficient correlator capable of operation at high dynamic range. It is expected that MAX will advance analog signal processing designs compatible with advanced node complementary metal-oxide semiconductor technologies for future low-cost manufacturing at commercial volumes. The program will also research additional novel circuit design and architectural techniques to advance beyond the end goals of the prototype MAX correlator.