发明名称 SATELLITE TRAVELLING-WAVE TUBE AMPLIFIER ON-LINE NON-LINEARITY MEASUREMENT
摘要 <p>The present invention discloses methods and systems of measuring transmission performance characteristics, such as from an amplifier. The method comprises the steps of receiving a signal, demodulating the signal, generating an ideal signal from the demodulated signal and estimating the performance characteristic from a difference between the ideal signal and the received signal. A system for measuring a transmission performance characteristic, comprises a demodulator for demodulating a received signal, a signal generator for producing an ideal signal from the demodulated signal and a processor for estimating the performance characteristic from a difference between the ideal signal and the received signal.</p>
申请公布号 EP1518342(B1) 申请公布日期 2010.09.15
申请号 EP20030757359 申请日期 2003.06.05
申请人 THE DIRECTV GROUP, INC. 发明人 CHEN, ERNEST, C.
分类号 H04B17/00;H03F1/32;H03F3/58;H04B7/185;H04L1/20;H04L27/36 主分类号 H04B17/00
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