信噪比为10db，实现主瓣指向60度的空间匹配滤波器。-SNR 10db, to achieve the main lobe of the spatial points 60 degrees matched filter.

利用51单片机测量倾斜角，用的传感器为龙邱的MMA8452，在60度范围内，可用所读数据直接除以256，得到角度，I2C协议- Use SCM measure tilt angle sensor used for the dragon Qiu MMA8452, in the range of 60 degrees, can be directly read data divided by 256 to get the angle, I2C protocol

MNIST数据集是机器学习领域中非常经典的一个数据集，由60000个训练样本和10000个测试样本组成，每个样本都是一张28 * 28像素的灰度手写数字图片。(The MNIST data set is a very classic data set in the field of machine learning. It consists of 60,000 training samples and 10,000 test samples. Each sample is a 28 * 28 p