株洲主要地类波谱特征研究

地物波谱是指地物反射电磁波能力的大小 ,不同地物具有不同的反射波谱值 .将株洲地区的地类粗略地划分为水、裸露地、居民点和植被 4大类 ,利用遥感图像处理软件 ERMAPPER6.1,在对航空和航天遥感信息源进行处理的基础上 ,对各地类的波谱值和波谱特性进行了详细研究 .结果表明 :相似地类具有相近的波谱分布 ,不同地类具有不同的波谱分布 ;同一地类因信息源、地理位置和时相不同而具有不同的波谱值 ,其分布表现为一个域 ,不同地类的域值差异较大 ;不同地类的波谱值严重交叉 .这说明地物同波谱特征值之间不是简单的一一对应关系 ,而是一种复杂的映射关系

Research on Spectrum Characteristics of Main Land Types in Zhuzhou

Spectrum refers to the reflection ability of land types. Different land has different spectrum values. This paper divides Zhuzhou land into four kinds of land types:water,land,residence and vegetation,and analyzes their spectrum values and characteristics in different intensively processed remote sensing information such as white-and-black panchromatic airphoto,color infrared airphoto and TM image using ER MAPPER6.1.The results show that similar land types have similar spectrum values and different land types have differentspectrum values;thatvarying with differentinformation,geographical location and phases,land of a same type has different spectrum values (distributed in one spectrum domain) ;and that spectra of different land types overlap seriously. This shows that the relationship between land types and their spectra is not a simple one-to-one correspondence but a multiple and complicated correspondence.