可生成一个正弦信号，并加入白噪声，的到正弦信号和白噪声的混合信号，通过低通滤波器对白噪声进行处理,已通过测试。-Generates a sinusoidal signal, and adding white noise, the sinusoidal signal and white noise to the mixed-signal, white noise through a low pass filter processing, has been tested.

卡尔曼滤波函数源代码，使用于受白噪声干扰比较大的数据，已经在硬件平台上测试（MCU使用的是STM32F103，对加速度计进行滤波）-Kalman filter function source code, for use in the white noise by relatively large data, has been tested on the hardware platform (MCU using STM32F103, accelerometer filtering)