A Digitally Interfaced Analog Correlation Filter System for Object Tracking Applications
This study reports a 24×57 correlation filter system for object tracking applications. While digital interfacing of the input and output data enabled a standard and flexible way of communication with pre- and post-processing digital blocks, the multiply-accumulate (MAC) operations were performed in the analog domain to save power and area. The proposed system utilizes non-volatile floating-gate memories to store filter coefficients. The chip was fabricated in a 0.13- μm CMOS process and occupies 3.23 mm 2 of silicon area. The system dissipates 388.4 μW of power at a throughput of 11.3 kVec/s, achieving an energy efficiency of 25.2 pJ/MAC. Finally, experimental results for a custom filter designed to detect vehicles are presented.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
- Sponsoring Organization:
- USDOE; Defense Advanced Research Projects Agency (DARPA) (United States)
- Grant/Contract Number:
- AC05-00OR22725; HR0011-13-2-0016
- OSTI ID:
- 1464004
- Journal Information:
- IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 65, Issue 9; ISSN 1549-8328
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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