A Digitally Interfaced Analog Correlation Filter System for Object Tracking Applications

作者：Judy Mohsen; Poore Nicholas Conley; Liu Peixing; Yang Tan; Britton Charles; Bolme David S; Mikkilineni Aravind K; Holleman Jeremy

来源：IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2018, 65(9): 2764-2773.

DOI：10.1109/TCSI.2018.2819962

• Analog signal processing
• analog computing
• correlation filter
• floating-gate memory
• digital interface
• object tracking

This paper reports a 24x57 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-mu m CMOS process and occupies 3.23 mm(2) of silicon area. The system dissipates 388.4 mu W of power at a throughput of 11.3 kVec/s, achieving an energy efficiency of 25.2 pJ/MAC. Experimental results for a custom filter designed to detect vehicles are presented.

• 出版日期2018-9