发明名称 |
Composite BPSK/AM-BPSK based spectral suppression of out-of-band energy from saturated RF amplifier |
摘要 |
An amplitude modulation (AM) based mechanism controllably alters the shape of a binary phase shift keyed (BPSK) digital spreading waveform modulated onto an RF carrier. The modulated RF carrier is amplified by a saturated RF amplifier. The spectral properties of the amplified AM-BPSK waveform, when combined with the spectral properties of a BPSK waveform modulated onto the RF carrier and amplified by another saturated RF amplifier, produces a composite BPSK-modulated RF waveform containing substantially suppressed sidelobes.
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申请公布号 |
US6721369(B1) |
申请公布日期 |
2004.04.13 |
申请号 |
US19990436551 |
申请日期 |
1999.11.09 |
申请人 |
WHERENET CORP |
发明人 |
HASH RONALD J.;BELCHER DONALD K. |
分类号 |
H04L25/03;H04L27/08;H04L27/20;(IPC1-7):H04K1/02;H04L25/49 |
主分类号 |
H04L25/03 |
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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