1 November 1987 Optical Implementation Of Systolic Finite Impulse Response Filters
Author Affiliations +
Optical Engineering, 26(11), 261169 (1987). doi:10.1117/12.7974211
An optical systolic finite impulse response (FIR) filter (or convolution operation) implementation using barrel shifters and a modified signed digit (MSD) adder is discussed. The computational element used in systolic FIR filters in electronics consists of a multiplier and an accumulator. A speedup in the throughput data rate along with a high degree of regularity and concurrency can be achieved by replacing the multiplier with barrel shifters and accumulators. The optical implementation of this architecture offers reconfigurability together with the inherent speed and massive parallelism of optics. It is shown that an FIR filter of order eight can be implemented by using one liquid crystal light valve (LCLV) and one optical MSD adder. All barrel shifters in the architecture are implemented using different areas in the same LCLV structure. The MSD adder is implemented using symbolic substitution logic (SSL), and the input operands in the various cells are arranged on the same input data plane to give all required summation terms.
P. A. Ramamoorthy, G. Govind, S. Antony, "Optical Implementation Of Systolic Finite Impulse Response Filters," Optical Engineering 26(11), 261169 (1 November 1987). https://doi.org/10.1117/12.7974211


Design of an optical sequential machine
Proceedings of SPIE (August 28 1995)
Optical Implementation Of Systolic FIR Filters
Proceedings of SPIE (November 25 1987)
Efficient Decimation And Interpolation
Proceedings of SPIE (December 10 1986)
Wavelet and subband coding of images: a comparative study
Proceedings of SPIE (November 01 1993)
System Verilog modelling of FIR filters
Proceedings of SPIE (April 26 2006)

Back to Top