基于广播电视卫星的双基海杂波建模与实测数据分析  

Modeling and Analysis of Bistatic Sea Clutter Based on Broadcasting Satellite

作　　者：方蕊 彭章友[1] Fang Rui

机构地区：[1]上海大学特种光纤与光接入网省部共建教育部重点实验室,上海200444

出　　处：《工业控制计算机》2025年第1期58-59,62,共3页Industrial Control Computer

摘　　要：针对无源雷达系统中的海面目标检测场景,提出了一种基于卫星发射源的海面回波信号仿真方法,得到理论仿真的双基海杂波数据。考虑卫星位置、接收机高度以及接收天线的波束宽度等因素,将海面照射范围划分成小面元,基于海面的电磁散射以及运动速度,利用卫星发射信号调制,得到具有物理机制的海杂波;同时实测得到中星九号照射下的双基海杂波,利用实测数据验证了理论仿真的有效性,并进一步对仿真数据进行分析。Aiming at the sea surface target detection in passive radar system,this paper proposes a simulation method of bistatic sea clutter based on broadcasting satellite.Considering factors such as satellite position,receiver height and receiving antenna beamwidth to get sea surface irradiation range,and dividing the sea surface into several surface elements.Based on the electromagnetic scattering and motion speed of the elements,bistatic sea clutter with physical mechanism is obtained by using the modulation of satellite transmit signal.The bistatic sea clutter data based on Chinasat 9 is measured to verify the validity of proposed theoretical simulation,the simulation sea clutter is also further analyzed in this paper.

关 键 词：双基海杂波 广播电视卫星 多普勒速度 

分 类 号：TN957.51[电子电信—信号与信息处理] P714[电子电信—信息与通信工程] U675.74[天文地球—海洋科学]