利用辐射带AP8模式计算了低高度内辐射带高能质子强度的各向异性特征。计算表明,对于给定的高度,投掷角为90°的粒子分布的区域比投掷角为80°的粒子分布区域要大得多,而且最大粒子强度也大得多。对于低高度典型的一点,粒子强度在投掷角为90°时最强,在其他角度,粒子强度迅速下降,反映出低高度内辐射带高能质子单向强度强烈的各向异性。 The anisotropy of the high-energy proton radiation intensity in the low-altitude radiative band was calculated using the mode of the radiation band AP8. Calculations show that for a given height, the area for particle distribution with a throw angle of 90 ° is much larger than the particle distribution area with a throw angle of 80 °, and the maximum particle strength is much greater. For the typical low height, the particle intensity is the strongest at a throw angle of 90 °, and at other angles the particle strength declines rapidly, reflecting the intense unidirectional anisotropy of the high-energy protons in the low-height radiation bands.