发明名称 |
APPARATUS AND METHOD FOR NARROWBAND DATA TRANSMISSION BY MEANS OF A DSSS TRANSMISSION SYSTEM |
摘要 |
A system providing a spread spectrum and a narrowband data transmission may comprise a DSSS transmitter and a DSSS receiver. The DSSS transmitter may convert a bit succession (di) into a chip succession (sk) using a chip sequence (cj, cj′) and send a succession of impulses (s(t)) corresponding to the chip succession (sk). The DSSS receiver may receive impulses (s(t)) sent by the transmitter and filter the received impulses (r(t)) using a filter having an impulse response (x(t)) dependent on the chip sequence (cj, cj′). The chip sequence (cj) may be a spread sequence. The narrowband data transmission may use chip sequence (cj′) and a corresponding impulse response (x(t)) of the filter. The chip sequence (cj′) does not comprise a succession having two directly successive arithmetic sign changes and an arithmetic sign change does not occur after the first and before the last chip in the chip sequence (cj′). |
申请公布号 |
EP3020137(A1) |
申请公布日期 |
2016.05.18 |
申请号 |
EP20140738783 |
申请日期 |
2014.07.03 |
申请人 |
CONTINENTAL AUTOMOTIVE GMBH |
发明人 |
OPITZ, MARTIN;REISINGER, THOMAS |
分类号 |
H04B1/707 |
主分类号 |
H04B1/707 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|