Romberg-fast Fourier transform (R-FFT) integration algorithm based on fast Fourier transform (FFT) and numerical integration theory was proposed for modal superposition method.

• 基于快速傅里叶变换(FFT)和数值积分理论,提出了一种应用于振型叠加法的龙贝格快速傅里叶变换(R-FFT)积分算法。