基于遗传算法的太阳影子定位
本文首先对直杆在太阳下的影长变化进行分析,建立影长变化模型,并画出给定时间和地点的直杆影长变化曲线;其次,根据所给直杆影子顶点的坐标数据,建立经纬度模型并利用遗传算法求解,确定直杆所处的地点及观测日期;最后对所给视频进行采样分析,将采样帧中的影子顶点坐标转化成现实世界中的坐标,然后求出影长,利用经纬度模型求得视频拍摄的地点及日期。
Bo Zhang
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近红外光谱结合非负回归系数回归法(配方回归)解析混合样品的组成比例
准确、快速解析混合样品的组成比例，对食品与农产品加工过程的质量控制和配方设计具有重要作用。传统解决方法多依赖大量代表性样品建立统计模型，耗时耗力。本研究以醇类及酸类液体混合样品、以无近红外特征吸收的四氯化碳为溶剂的低浓度溶液混合样品的透射光谱，以及片状烟叶样品漫反射光谱为研究对象，采用导数光谱与S.G.平滑预处理，结合非负回归系数回归法（配方回归），验证了该 …
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基于数学建模的“五层递进式”创新型人才培养机制的研究与实践
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