Soft-limited digital pulse compressor

Details Soft-limited digital pulse compressor Soft-limited digital pulse compressor

1985-07-18

1987-07-07

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

342145, 375122, 364728, G06F 1534

Patent

active

046792104

ABSTRACT:
A circuit is provided for correlating both the phase and amplitude of received radar signals with the phase of a transmitted binary reference phase code, which enables implementation by off-the-shelf hardware. The received signal is demodulated and quadrature detected, and each segment of small duration of the received signal is converted to a three-bit data code word, with each data word defining both the phase and the amplitude of the demodulated received signal. Each bit of the same significance (e.g., most significant bit or least significant bit) of a series of data words is delivered to a different one of a group of one-bit correlators. Each correlator correlates the series of bits of the same significance from a sequence of data words, with the bits of the binary reference phase code. The outputs of the correlators whose bits represent the amplitude of the received signal, are multiplied according to the significance or position of the bit, and the products are added.

REFERENCES:
patent: 3760355 (1973-09-01), Brucket
patent: 4156923 (1979-05-01), Lampe et al.
patent: 4224679 (1980-09-01), Nossen et al.
patent: 4400790 (1983-08-01), Chambers et al.
patent: 4506372 (1985-03-01), Massey et al.

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