Digital m of n correlation device having increased bit rate

Details Digital m of n correlation device having increased bit rate Digital m of n correlation device having increased bit rate

1981-06-01

1983-11-08

Chan, Eddie P.

Boots, shoes, and leggings

364604, 340347DA, G06G 719, G06F 1534, H03K 1302

Patent

active

044146418

ABSTRACT:
A digital m of n correlation device using signal and reference shaft registers, modulo 2 adders, unique 1-bit D/A converters, and single resistor analog summing provides a very fast correlation product for pulse compression modulations such as phase or frequency shift keying. The compression ratio for the digital m of n correlation device, according to the present invention, is 168:1 (equal to the number of bits). The device is capable of bit rates in excess of 100 Mbps and is well suited for LSI fabrication.

REFERENCES:
patent: 3303335 (1967-02-01), Pryor
patent: 3582943 (1971-06-01), Weller
patent: 3621221 (1971-11-01), Cann
patent: 3670151 (1972-06-01), Lindsay et al.
patent: 3831013 (1974-08-01), Alsup et al.
patent: 3903405 (1975-09-01), Gaskill, Jr.
patent: 3961171 (1976-06-01), Freeman
TRW LSI Products, TDC-1004J, Digital Correlator.
Mano, M. M., Computer System Architecture, N.J., Prentice-Hall, 1976, pp. -65.
Analog-Digital Conversion Handbook, MA., Analog Devices, Inc. 1972, pp. II-80-II-81, II-46-II-48.

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