Landsat预处理

在使用envi中的band_math时需要将两张图像设置为相同的行和列，改程序解决了该问题(In use of envi band_math need two images set to the same rows and columns, change the program to solve the problem)

NDVI时间序列谐波分析法(Harmonic Analysis of NDVI Time-Series)（简称Hants ）对时间序列数据进行平滑。该方法是一种新的物候分析方法，可用于定量化的监测植被动态变化。其核心算法是傅里叶变换和最小二乘法拟合, 即把时间波谱数据分解成许多不同频率的正弦曲线和余弦曲线，从中选取若干个能够反映时间序列特征的曲线进行叠加，以达到时间序列数据的重建目的。(The NDVI Time Series Harmonic Analysis of NDVI Time Series (Hants) smoothes Time Series data. This method is a new phenological analysis method, which can be used for quantitative monitoring of dynamic changes of vegetation. The core algorithm is the Fourier transform and least squares fitting, namely the time spectrum data is decomposed into many different frequency sine curve and cosine curve, selected from several can reflect the characteristics of time sequence curve superposition, the reconstruction of the time series data in order to achieve purpose.)

省时间省事情，非常简便计算速度较快，而且非常容易操作(Saving time and saving things is very simple and fast.)

说明：  使用idl，通过单通道法计算遥感影像地表温度附设计界面(Using IDL to realize single channel method to calculate surface temperature)

高光谱图像的分类，适合各种光谱数据或者RGB图像。只需要调整输出路径就好了。(Hyperspectral image classification, for a variety of spectral data or RGB images. Only you need to adjust the output path just fine.)

说明：  程序在 IDL+ENVI 下编译，名为 rihor_Little_Bear_Tools.sav，支持 ENVI4.8 及以上版本。(rihor_Little_Bear_Tools.sav, Support ENVI4.8 and above)

说明：  对于双基地SAR，基于IDL语言使用BP算法进行成像，以及显示回波信号。(For Bistatic SAR, BP algorithm is used to image and display echo signal based on IDL language.)

说明：  在ENVI中利用此程序可将多光谱影像拆分为单个波段。(In ENVI, multi-spectral images can be divided into single bands by using this program.)

基于IDL的遥感影像多波段计算，单波段计算。可以实现赋值以及简单的运算功能(Multi-band calculation and single-band calculation of remote sensing image based on IDL. It can realize assignment and simple operation function.)

gsm location finder for the gsm modem accurately by AT commands..