An apparatus for reception and detection of RACH data in an LTE input signal includes a hardware accelerator that has a decimator that filters and down-samples the input signal, a first Fourier transform circuit that transforms the decimated signal from the time domain to the frequency domain, and a second transform circuit that multiplies the resulting signal by a complex Z-C sequence and performs an inverse Fourier transform (iFT) operation to transform the multiplied signal from the frequency domain to the time domain. A DSP performs a delay profile analysis operation on the signal resulting from the iFT operation.