DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
An array convolver andor correlator comprises first and second two-dimensional shift registers defined by N rows and M columns, corresponding columns, the first, the second, etc., of the two registers being aligned. N and M are generally in the range of 4 to 512. Data is capable of entering at least one of the left or right columns of each of the two shift registers. The data shifts downward to the bottom row in the first, upper, shift register and upward t the top row in the second, lower, shift register. A plurality of M analog multipliers each has a input from corresponding, aligned columns of each of the two registers. An analog summer has M inputs, one from each of the multipliers. The output of the summer is a correlation or convolution, depending upon which specific columns the data enters.
- Electrical and Electronic Equipment