CAJ | 학술논문

针对双圆极化频率复用中的交叉极化干扰问题，分析了雨衰及雨致去极化对LEO卫星X频段双圆极化频率复用的影响，然后将交叉极化干扰按高斯白噪声处理，并依据数据接收链路误码率门限要求，提出了X频段双圆极化频率复用遥感卫星数据接收系统极化鉴别率的技术需求。研究结果已用于双圆极化遥感卫星数据接收系统的设计，并已成功接收了国内首颗双圆极化频率复用遥感卫星（资源三号卫星，数据速率为450 Mb/s×2）的数据。
침대쌍원겁화빈솔복용중적교차겁화간우문제，분석료우쇠급우치거겁화대LEO위성X빈단쌍원겁화빈솔복용적영향，연후장교차겁화간우안고사백조성처리，병의거수거접수련로오마솔문한요구，제출료X빈단쌍원겁화빈솔복용요감위성수거접수계통겁화감별솔적기술수구。연구결과이용우쌍원겁화요감위성수거접수계통적설계，병이성공접수료국내수과쌍원겁화빈솔복용요감위성（자원삼호위성，수거속솔위450 Mb/s×2）적수거。
The impact of rain attenuation and depolarization on the performance of LEO satellite X-band data transmission link with dual-circular polarization are analyzed. Base on a bit error rate threshold requirement, the cross-polarization interference caused by depolarization may be regarded as AGWN. The XPD requirements of the X-band remote sensing satellite data receive system are proposed. The results have been used in the design of the data receiving system for the double-circular polarized re-mote sensing satellite. The data from ZY-3 satellite (dual circular polarization frequency reuse remote sensing satellite, whose data rate is 450Mbps×2) was successfully received.