A concurrent system for the computation of higher-order moments

The cumulants defined in terms of moments are basic to the study of higher- order statistics (HOS) of a stationary stochastic process. This paper prese nts a concurrent systolic array system for the computation of higher-order moments. The system allows for the simultaneous computation of the second-, third-, and fourth-order moments. The architecture achieves good speedup t hrough its excellent exploitation of parallelism, pipelining, and reusabili ty of some intermediate results. The computational complexity and system pe rformance issues related to the architecture are discussed. The concurrent system is designed with the CMOS VLSI technology and is capable of operatin g at 3.9 MHz.