AM | DSB | SSB | VSB | FM | |
输入信号功率 | frac{A_{0}^{2}}{2}+frac{overline{m^{2}(t)}}{2} | frac{overline{m^{2}(t)}}{2} | frac{overline{m^{2}(t)}}{4} | frac{overline{m^{2}(t)}}{4} | frac{A_{0}^{2}}{2} |
输入噪声功率 | n0BAM | n0BDSB | n0BSSB | n0BVSB | n0BFM |
输入信噪比 | frac{A_{0}^{2}+overline{m^{2}(t)}}{4n_{0}f_{m}} | frac{overline{m^{2}(t)}}{4n_{0}f_{m}} | frac{overline{m^{2}(t)}}{4n_{0}f_{m}} | frac{overline{m^{2}(t)}}{4n_{0}B_{VSB}} | frac{A_{0}^{2}}{4n_{0}(bigtriangleup f+f_{m})} |
输出信号功率 | frac{overline{m^{2}(t)}}{4} | frac{overline{m^{2}(t)}}{4} | frac{overline{m^{2}(t)}}{16} | frac{overline{m^{2}(t)}}{16} | (k_{d}k_{f})^{2}overline{m^{2}(t)} |
输出噪声功率 | frac{1}{2}n_{0}f_{m} | frac{1}{2}n_{0}f_{m} | frac{1}{4}n_{0}f_{m} | frac{1}{4}n_{0}B_{VSB} | frac{8pi ^{2}k_{d}^{2}n_{0}f_{m}^{3}}{3A_{0}^{2}} |
输出信噪比 | frac{overline{m^{2}(t)}}{2n_{0}f_{m}} | frac{overline{m^{2}(t)}}{2n_{0}f_{m}} | frac{overline{m^{2}(t)}}{4n_{0}f_{m}} | frac{overline{m^{2}(t)}}{4n_{0}B_{VSB}} | frac{3A_{0}^{2}k_{f}^{2}overline{m^{2}(t)}}{8pi ^{2}n_{0}f_{m}^{3}} |
信噪比增益 | frac{2overline{m^{2}(t)}}{A_{0}^{2}+overline{m^{2}(t)}} | 2 | 1 | 1 | 3m2f(mf+1) |