首页>
外国专利>
META-CARRIER EMBEDDING TECHNIQUE WITH IMPROVED PERFORMANCE FOR BPSK, MSK, AND O-QPSK MODULATION
META-CARRIER EMBEDDING TECHNIQUE WITH IMPROVED PERFORMANCE FOR BPSK, MSK, AND O-QPSK MODULATION
展开▼
机译:用于BPSK,MSK和O-QPSK调制的具有改进性能的元载波嵌入技术
展开▼
页面导航
摘要
著录项
相似文献
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.
展开▼