Underwater Acoustic Covert Communication Based on Compressed Sensing

Abstract Compressed sensing technology is currently a relatively mature channel estimation technology, and the sparsity of underwater acoustic provides basis for application compressed to channel. Channel one most commonly used signal reconstruction methods. The reconstructed based on improve reliability transmission. key SL0 algorithm. Based algorithm, new objective function proposed better approximate L0 norm. In very short time, original can be accurately transmission improved. Finally simulation experiment compare with previously function, which proves that performance better.