DSP-based variable aperture code generation technique

Details DSP-based variable aperture code generation technique DSP-based variable aperture code generation technique

2006-05-09

2006-05-09

Bayard, Emmanuel (Department: 2634)

Pulse or digital communications

Transmitters

Amplitude modulation

C375S238000

Reexamination Certificate

active

07042959

ABSTRACT:
Variable Aperture Coded (VAC) signals for VAC modulation are advantageously generated by a digital signal processor (12) that yields a VAC signal having a single narrow peak in the positive frequency region. A Discrete-Time Hilbert transformer (12) isolates only the positive spectral peaks, thus yielding a VAC signal that affords greater control over zero crossings.

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