Digital synthesized wideband noise-like waveform
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United States of America Patent
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Dec 8, 1998
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app pub date -
Feb 20, 1996
filing date -
Feb 20, 1996
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Abstract
Apparatus and a method for generating a digital synthesized Gaussian noise-like waveform that may be used to modulate and demodulate communication data. The present invention uses a seed input that addresses a read only memory look-up table, for example, containing digital samples having Gaussian statistics. A sequence generator generates a pair of pseudo-random sequences in response to the seed input that address the read only memory to look up and output a pair of pseudo-random Gaussian samples that are used to generate the Gaussian noise-like waveform. A processor converts the pair of pseudo-random Gaussian samples into corresponding analog I and Q signals, and a modulator 33 modulates the analog I and Q signals to generate a modulated output signal having the Gaussian noise-like waveform.
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Patent Owner(s)
- HUGHES AIRCRAFT COMPANY;MICROELECTRONICS TECHNOLOGY, INC.;TELASIC COMMUNICATIONS
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Cai, Khiem V | Brea, CA | 25 | 748 |
O'Connor, Roger J | Dove Canyon, CA | 7 | 474 |
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