谱元法地震波模拟研究，能够有效地进行波动方程处理和模拟-Spectral element simulation of seismic wave, wave equation can be efficiently processed and simulation

随机调制信号下的模拟ppm，LDPC码的完整的编译码，基于kaiser窗的双谱线插值FFT谐波分析。- Random ppm modulated analog signal under Complete codec LDPC code, Dual-line interpolation FFT harmonic analysis kaiser windows.