详细画出了时域和频域的相关图，插值与拟合，解方程，数据分析，用于建立主成分分析模型，实现了对10个数字音的识别，FMCW调频连续波雷达的测距测角，是信号处理的基础，包括随机梯度算法，相对梯度算法，是小学期课程设计的题目。- Correlation diagram shown in detail the time domain and frequency domain, Interpolation and fitting, solution of equations, data analysis, Principal component analysis model for establishing, To achieve the recognition of 10 digital sound, FMCW frequency modulated continuous wave radar range and angular measurements, Is the basis of the signal processing, Including stochastic gradient algorithm, the relative gradient algorithm, Is the topic of the elementary school stage curriculum design.