发明名称 SATELLITE TWTA ON-LINE NON-LINEARITY MEASUREMENT
摘要 The present invention discloses methods and systems of measuring transmissio n performance characteristics, such as from an amplifier. The method comprises the steps of receiving a signal, demodulating the signal, generating an idea l 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 (202) for demodulating a received signal, a signal generator (204) for producing an ideal signal (220) from the demodulated signal and a processor (118) for estimating the performance characteristic from a difference between the ideal signal and the received signal.
申请公布号 CA2487817(C) 申请公布日期 2009.12.15
申请号 CA20032487817 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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