Heterogeneous accelerated multipath channel signal real-time generation method

The invention relates to a heterogeneous accelerated multipath channel signal real-time generation method, which realizes high-precision broadband signal delay control by applying a variable fractional delay filter with a FARROW structure, and integrates the steps of integer sampling point delay, amplitude attenuation and phase rotation on the basis, so that the real-time generation of a multipath channel signal is realized. All filter coefficients are obtained at a time through parallel calculation of matrix multiplication of the FARROW polynomial coefficient matrix and the multipath parameter matrix; time domain linear convolution operation is converted into frequency domain multiplication, and fast filtering is realized by using efficient parallelism of Fourier transform and inverse Fourier transform; data transmission time between a host memory and a device memory is hidden by adopting a data'block 'calculation and asynchronous parallel execution strategy. By adopting the method, the problems that the num