FIELD: communication engineering; adaptive synchronous and asynchronous communication systems. SUBSTANCE: system has clock generator, D-code shaper, double- keying-frequency signal shaper, signal selector, additional sequences separation unit, dual-channel matching filter, and resolving unit. Random-parameter communication channels may use high- and very- high-frequency bands in code-multiplexing and multiple-access systems. EFFECT: enlarged functional capabilities. 3 cl, 3 dwg
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