Group-complementary code sets for implementing pulse-compression

Details Group-complementary code sets for implementing pulse-compression Group-complementary code sets for implementing pulse-compression

1982-03-29

1985-04-23

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 728

Patent

active

045132887

ABSTRACT:
A group-complementary codes provide sets of binary word groups which have the combined properties of optimized aperiodic autocorrelation and optimized cross-correlation between word sets. The optimized aperiodic autocorrelation property allows the implementation of pulse compression processing in sensor systems to achieve zero value temporal or range sidelobes within the principal interpulse period without resorting to weighting techniques for sidelobe reduction. The orthogonal nature of group-complementary codes, apparent from their absence of cross-correlation between sets, allows sensors to be deployed in close proximity, using the same carrier frequency without direct path mutual interference when synchronized.

REFERENCES:
patent: 4219812 (1980-08-01), Rittenbach
patent: 4293953 (1981-10-01), Gutleber
patent: 4328495 (1982-05-01), Thue
Colin et al., "Pulse Compression in Radars Using Binary Phase Modulation" ectrical Communication, vol. 52, No. 2, (1977), pp. 152-157.
TR-RE-81-2 Design and Implementation of a Modification to the SAM/ATU Prototype Signal Processor, G. Weathers and H. Yates, Sep. 30, (1980), Appendix A, pp. 1-26.

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