发明名称 |
META-CARRIER EMBEDDING TECHNIQUE WITH IMPROVED PERFORMANCE FOR BPSK, MSK, AND O-QPSK MODULATION |
摘要 |
A method of embedding information within a burst carrier signal, the method comprising modulating meta-data using a modulator such that a meta-carrier signal results, lowering a Power Spectral Density (PSD) of the meta-carrier signal by Direct Sequence Spread Spectrum (DSSS) chipping the meta-carrier signal using a linear Pseudo-Random Number (PRN) sequence, embedding one or more modulated symbols of the meta-carrier signal within an unused portion of one or more quadrants of a modulation constellation of a burst carrier signal such that a composite carrier signal results, and synchronously transmitting the composite carrier signal using a transmitter such that symbols of the meta-carrier signal are synchronized with symbols of the burst carrier signal. |
申请公布号 |
EP2732557(A4) |
申请公布日期 |
2015.04.22 |
申请号 |
EP20120804250 |
申请日期 |
2012.07.02 |
申请人 |
COMTECH EF DATA CORP. |
发明人 |
CANNON, RICHARD, HOLLINGSWORTH;BEELER, MICHAEL;MAMARIL, CRIS |
分类号 |
H04L27/34;H04B1/707;H04L27/18 |
主分类号 |
H04L27/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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