The invention discloses a super-resolution angle and time
delay estimation based
broadband channel
estimation method. According to the invention, aiming at a
millimeter wave large scale
MIMO system ina
hybrid analog-digital coding architecture, in order to solve a problem of quantization error influence due to limited quantization angle grid resolution in a traditional compression sensing based
broadband channel
estimation method, sparsity of a
millimeter wave channel it utilized, through designing training signals of a transceiving end, a classical
spatial spectrum estimation method is introduced, so that
pilot frequency expenditure required by channel estimation can be reduced substantially and an arrival angle and a leaving angle of the
millimeter wave channel and a super resolution estimation value of corresponding multi-path time
delay can be acquired with high accuracy. Therefore, channel estimation accuracy can be improved distinctively. Besides, according to the invention, phases of a phase shifter in a phase shift network corresponding to an analog pre-
encoder and an analog combiner to limited quantization bits, so that practical
system implementation is facilitated.