5 . considering the signal ' s snr is relatively low and it belongs to weak signal , some feasible simulations of the wavelet soft threshold filter with matlab wavelet analysis tool packet are done , and the c program is compiled and executed 5 .针对红外水分仪出来的信噪比相对较低的微弱信号，利用matlab小波分析工具包进行了小波软阈值滤波的可行性仿真之后，编写c语言程序进行实际实现。
However , many influence factors especially the temperature have influence on the output signal of infrared moisture meter which belongs to the weak signal , and the existing infrared moisture meter have some defects such as just carrying simple filter and temperature compensation on it , so the measurement precision , the capability of adapting the environment and anti - noise are still not satisfying , as well as its performance and maintenance 但由于被测信号十分微弱，测量过程干扰因素较多，尤其是温度，而现有的红外水分仪在信号处理方面往往只是进行简单的滤波与温度补偿，致使仪器在测量精度、适应环境、抗干扰性能、调试与维护等方面还不尽人意。
In view of the above , the wavelet soft threshold value filter and the information fusion technology are introduced ; some explorations and attempts are made on processing the information intelligently , which give a new data processing basis of the infrared moisture meter . the main content and achievements can be summed up as follows : 1 针对以上存在的问题，本课题对红外水分仪的光路系统、硬件电路、系统软件进行了全面设计，还引入小波软阈值滤波与信息融合技术，在智能化信息处理方面进行了一些探索和尝试，为新型红外水分仪的数据处理提供了新的思路。
