$$\begin{array}{l}TX（：，：，1）＝T{X}_{\theta }＝\frac{E_{\theta }}{\sqrt{{\eta }_0}}·\sqrt{4\pi }·R·e^{j\gamma R}\\ TX（：，：，2）＝T{X}_{\phi }＝\frac{E_{\varphi }}{\sqrt{{\eta }_0}}·\sqrt{4\pi }·R·e^{j\gamma R}\end{array}$$

$${\Vert TX\Vert }^2＝{\left|T{X}_{\theta }\right|}^2+{\left|T{X}_{\varphi }\right|}^2＝E我RP＝P_t{G}_t$$

$$TX（：，：）＝\sqrt{G_t{R}_e｛Z_{我n}｝}．{我}_{我n}$$

$$pl＝\frac{\lambda }{4\pi R}·e^{-j\gamma R}$$

$$\begin{array}{l}RX（：，：，1）＝R{X}_{\theta }＝T{X}_{\theta }·pl＝\frac{E_{\theta }}{\sqrt{{\eta }_0}}·\frac{\lambda }{\sqrt{4\pi }}\\ RX（：，：，2）＝R{X}_{\varphi }＝T{X}_{\varphi }·pl＝\frac{E_{\varphi }}{\sqrt{{\eta }_0}}·\frac{\lambda }{\sqrt{4\pi }}\end{array}$$

$$P_r＝{\Vert RX\Vert }^2{G}_r$$