CN116150579A - 一种红外预警卫星接收方法 - Google Patents
一种红外预警卫星接收方法 Download PDFInfo
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Abstract
本发明公开一种红外预警卫星接收方法,包括:地面背景修正模型、目标的探测信噪比模型和探测概率模型;根据地面背景的影响系数以及卫星探测地面时的大气透过率来构建红外预警卫星的地面背景修正模型;根据地面背景修正系数、信号峰值因子、弥散系数等来构建红外预警卫星所探测目标的信噪比模型;根据信噪比影响因子以及气象影响因子来构建探测概率模型;本发明提出了一种精确的红外预警卫星探测概率计算方法,通过计算目标的探测信噪比以及气象影响因子来确定卫星的探测效果。
Description
技术领域
本发明涉及卫星接收领域,更具体地说,涉及一种红外预警卫星接收方法。
背景技术
红外预警卫星主要用于探测地球表面和大气层的红外辐射信号,以便及早发现并警报可能出现的威胁,红外预警卫星是反导作战体系中的重要组成部分,其原理是利用弹道导弹的高温尾焰辐射特性进行早期发现和连续跟踪,为反导拦截作战提供了充足的预警时间。
红外预警卫星对弹道导弹主动段弹道的探测能力是指其通过设定的战术需求,及时、有效探测其覆盖空域内目标的能力,主要包括覆盖范围和预警时间两个方面。研究探测能力可为评估外军预警卫星的作战效能以及未来构建国内天基红外预警卫星系统等提供有效参考。
现有的红外预警卫星接收方法大多侧重于评估红外信号接收以及目标的识别效果,缺少一种在复杂环境下计算卫星识别目标概率的方法。
发明内容
针对上述缺少评估卫星识别目标概率的问题,本发明提出一种红外预警卫星接收方法,包括如下步骤:
S2:输入卫星红外载荷参数:卫星光学系统有效通光口径、卫星光学系统透过率、焦距/>、水平方向探测器面元大小/>、垂直方向探测器面元大小/>、水平方向像元数量/>、垂直方向像元数量/>、系统等效噪声温差/>以及帧频/>;
S3:构建红外预警卫星所探测目标的地面背景修正模型;
以上即为探测目标的地面背景修正方程;
S4:根据地面背景修正模型构建目标的探测信噪比模型;
以上即为目标的探测信噪比计算方程;
S5:根据探测信噪比模型以及气象影响因子构建探测概率模型;
以上即为红外预警卫星探测概率计算方程。
附图说明
图1为本发明的红外预警卫星探测流程图;
图2为红外预警卫星探测示意图;
图3为红外预警卫星受天气大气影响下探测导弹示意图。
具体实施方式
为验证上述方法的有效性,本部分进行实例计算,计算流程如图1所示;
选取典型场景为红外成像卫星探测模型如图2所示;
S1:输入探测目标的参数:
S2:输入卫星红外载荷参数:
S3:通过上述输入的探测目标参数以及卫星红外载荷参数构建红外预警卫星所探测目标的地面背景修正模型;
利用上述数据计算得,
以上即为探测目标的地面背景修正系数;
S4:通过上述输入的探测目标参数、卫星红外载荷参数以及经过地面背景修正的目标辐射强度系数构建目标的探测信噪比模型;
以上即为目标的探测信噪比;
以上即为红外预警卫星对助推段洲际弹道导弹的探测概率。
Claims (4)
1.一种红外预警卫星接收方法, 其特征在于,包括以下步骤:
S1:输入探测目标的参数:目标辐射强度、飞行高度、卫星与目标的距离以及卫星相对目标的天顶角;
S2:输入卫星红外载荷参数:卫星光学系统有效通光口径、卫星光学系统透过率、焦距、水平与垂直方向探测器面元大小、水平与垂直方向像元数量、系统等效噪声温差以及帧频;
S3:构建红外预警卫星所探测目标的地面背景修正模型;
S4:根据地面背景修正模型构建目标的探测信噪比模型;
S5:根据探测信噪比模型以及气象影响因子构建探测概率模型。
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CN117375706A (zh) * | 2023-12-04 | 2024-01-09 | 成都本原星通科技有限公司 | 一种面向接收端的低轨卫星星间干扰优化方法和系统 |
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CN112612064A (zh) * | 2020-11-20 | 2021-04-06 | 中国人民解放军91776部队 | 一种天基探测与跟踪红外动态飞行目标的方法 |
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US20050275582A1 (en) * | 2004-06-14 | 2005-12-15 | Mohan Paul L | System and method for onboard detection of ballistic threats to aircraft |
CN106570253A (zh) * | 2016-10-26 | 2017-04-19 | 中国运载火箭技术研究院 | 一种实时天基红外视景仿真方法 |
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Non-Patent Citations (2)
Title |
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Cited By (2)
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CN117375706A (zh) * | 2023-12-04 | 2024-01-09 | 成都本原星通科技有限公司 | 一种面向接收端的低轨卫星星间干扰优化方法和系统 |
CN117375706B (zh) * | 2023-12-04 | 2024-03-12 | 成都本原星通科技有限公司 | 一种面向接收端的低轨卫星星间干扰优化方法和系统 |
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