In this simulation, a 2 x 2 MIMO system with BPSK modulation is used. Then, the algorithm of V-BLAST is implemented. After that, weight vector is produced using ZF, MMSE and ML detectors. Finally, the BER performance is plotted. A flat fading Rayleig

用图像处理、植物病理学、色度学、几何特征、距离特征等方面的知识,研究了作物病害受害程度的检测,以生产中常见的玉米小斑病、水稻纹枯病、水稻稻瘟病为研究对象,经过图像预处理后提取作物的颜色特征、几何特征、距离特征,建立了作物危害程度检测模型-With knowledge of image processing, plant pathology, colorimetry, geometry, distance characteristics and other aspects of the study

尺度不变特征转换(Scale-invariant feature transform或SIFT)是一种电脑视觉的算法用来侦测与描述影像中的局部性特征，它在空间尺度中寻找极值点，并提取出其位置、尺度、旋转不变量，此算法由 David Lowe在1999年所发表，2004年完善总结。(SIFT predicts whether an amino acid substitution affects protein function. SIFT prediction is based on the de