Reviewed and analyzed issues related to polyustrovskij quasi-optimal algorithms of discrete signal reception. It is shown that the most noise-resistant quasioptimal algorithms designed to deal with chaotic pulse po-mechs on the background of noise are multi-calculation algorithms. A block diagram of a multi-threshold receiver for detection of discrete signals is obtained. Describes and analyzes the work of quasioptimal receiver with gated pulse signals on the background noise and pulse interference.As a result of mathematical simulation the dependences of winning, providing trechorous decisive scheme compared to odnoprovodnoi.