Systems, methods, devices, and/or computer program products for providing communications devoid of cyclostationary features
First Claim
1. A transmitter for a communications system, the transmitter comprising:
- a system configured to generate a communications alphabet responsive to a statistical distribution and a frequency-domain characteristic, to generate a communications waveform based upon at least one waveform element of the communications alphabet and to transmit information based upon the communications waveform;
wherein the communications alphabet comprises a plurality of pseudo-random waveform elements that are orthogonal and statistically independent therebetween.
2 Assignments
0 Petitions
Accused Products
Abstract
A wireless communications system configured for Low Probability of Intercept (LPI), Low Probability of Detection (LPD) and/or Low Probability of Exploitation (LPE) communications may use waveforms substantially devoid of a cyclostationary signature to improve a LPI/LPD/LPE property. A set of M independent “seed” waveforms that satisfy a time-bandwidth constraint may be used via a Gram-Schmidt Orthogonalization (GSO) procedure to generate M orthonormal functions. In accordance with exemplary embodiments, the M seed waveforms may be chosen from a band-limited Gaussian-distributed process and may be used to generate, via an orthogonalization operation a corresponding set of M Gaussian-distributed orthonormal functions substantially devoid of a cyclostationary property.
60 Citations
53 Claims
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1. A transmitter for a communications system, the transmitter comprising:
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a system configured to generate a communications alphabet responsive to a statistical distribution and a frequency-domain characteristic, to generate a communications waveform based upon at least one waveform element of the communications alphabet and to transmit information based upon the communications waveform; wherein the communications alphabet comprises a plurality of pseudo-random waveform elements that are orthogonal and statistically independent therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. A method of transmitting information, the method comprising:
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generating a communications alphabet responsive to a statistical distribution and a frequency-domain characteristic; generating a communications waveform based upon at least one waveform element of the communications alphabet; and transmitting information based upon the communications waveform;
wherein the communications alphabet comprises a plurality of pseudo-random waveform elements that are orthogonal and statistically independent therebetween. - View Dependent Claims (53)
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Specification