Sub-ice channel estimation method and device based on sparse dynamic constraint, medium and equipment

The invention discloses a sub-ice channel estimation method and device based on sparse dynamic constraint, a medium and equipment, relates to the technical field of sub-ice channel estimation, and aims to solve the problems of high complexity and large time delay of a channel estimation algorithm. The method comprises the following steps: constructing a Lawson-q-renyi cost function model on the basis of a Lawson norm and a q-renyi kernel function; derivation is carried out on the constructed cost function according to the gradient descent direction, and a general iterative formula of a Lawson-q-renyi cost function model is obtained; and determining an input signal and an iteration parameter of the general iteration formula, and performing iteration processing on the input signal by using the general iteration formula to obtain a channel estimation value. According to the sub-ice channel estimation method based on sparse dynamic constraint provided by the invention, the convergence speed during sub-ice sparse