2016-09-13

試験

【無線工学】受信機

雑音電力PN = k T Bk: ボルツマン係数(= 1.38 × 10-23)T: 絶対温度B: 周波数帯域幅感度高周波増幅器で発生する熱雑音による影響が大。
試験

【無線工学】送信機

変調度$$m=\frac{A-B}{A+B}\times 100 $$DSBの電力$$P_m=P_c+\frac{m^2}{4}P_c+\frac{m^2}{4}P_c=P_c(1+\frac{m^2}{2})$$※ キャリア + LSB ...

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