Channel estimation method and device based on wireless communication system

The invention belongs to the technical field of power systems, and discloses a channel estimation method and device based on a wireless communication system, and the method comprises the steps: obtaining an observation vector and a sensing matrix according to the pilot frequency type of the wireless communication system, and then obtaining a channel estimation result through an iterative loop algorithm based on the observation vector, the sensing matrix and a preset step length. And obtaining an estimation result of the pilot frequency vector channel, and further obtaining a preliminary channel estimation result of the time domain according to the estimation result. Therefore, the method and the device provided by the invention are based on the compressed sensing principle, and the SAMP algorithm is applied to reduce the pilot frequency quantity, so that the spectrum efficiency and the estimation precision are improved, and the problem of low channel estimation efficiency and estimation precision in the prior