Large aircraft lateral gust moderating method

The invention belongs to flight control technology, and relates to improvement on a large aircraft lateral gust mitigating method, which is characterized by comprising the steps of calculating a sideslip angle Delta Beta generated by front gusts, calculating a rudder compensation instruction Rudc_f1, calculating a rudder correction instruction Rudc_f2, calculating a gust advanced restrain rudder instruction Rudc_f, calculating a gust advanced restrain aileron instruction Ailc_f, calculating a differential pressure sideslip angle Beta f, calculating a corrected sideslip angle Beta fc, calculating a high-frequency sideslip angle, calculating a low-frequency sideslip angle, calculating a final sideslip angle Beta c, calculating an optimal control rudder instruction Rudc_p, calculating an optimal control aileron instruction Ailc_p, determining a rudder comprehensive instruction Rudc1, determining a rudder input instruction Rudc, calculating an aileron comprehensive instruction Ailc1 and calculating aileron input