12/12/2017-22:07:19
RE: Etude de filtre : JMLC 24/24 Q_O, boomer / pavillon
On trouve pourtant,chez les grands fondeurs,des RMS power detector
(sur signaux complexes et très rapides) afin de détecter la valeur vraie transportée par les porteuses.(delta peak-average).
(Lin.Tech) RMS power detector
Texas Instr. RMS power detector
Analog devices RMS power detector
RMS power detector
(sur signaux complexes et très rapides) afin de détecter la valeur vraie transportée par les porteuses.(delta peak-average).
(Lin.Tech) RMS power detector
Texas Instr. RMS power detector
Analog devices RMS power detector
RMS power detector
Citation :By their nature, root mean square (RMS) power detectors are well-suited to accurately measure the average power of arbitrary waveforms. This is because such devices precisely implement the definition formula for average power, i.e., proportional to the average of the squared signal. Other types of power detectors, such as Schottky diode detectors or demodulating logarithmic amplifiers, implement slightly different operation that often involve the signal envelope. Their response changes whenever the input waveform—but not the average power level—is changed. Modern communication systems use complex modulation (e.g., OFDM, WCDMA), with high PAPR signals.....