METHOD FOR ENERGY DETECTION OF SHORT UNMODULATED RADIO-SIGNALS AND SEQUENTIAL ESTIMATION OF INITIAL PHASES OF THOSE AND DOPPLER FREQUENCIES

摘要

A method for energy detection of short unmodulated radio-signals and sequential estimation of initial phases of those and Doppler frequencies is based on verification of statistical hypotheses by minimum average risk criterion with use of energy likelihood ratio. After energy detection of time interval where energy likelihood ratio exceeds the detection threshold to the input short unmodulated radio signal a set of reference expected radio-signals is added, with changed initial phase and Doppler frequency at set of possible values of those for the controlled class of objects with discreetness needed for single-valued estimation formed on basis of a priori knowledge (or measurements) of initial phase and frequency of sounding radio-signal.