Onyschuk O. Methods and Means of Processing and Measuring the Carrier Frequency of Echo-Signals of Doppler Log

The object of the research is the process of measuring the carrier frequency of echo-signals of doppler log and determination the doppler frequency shifts. The objective of the research -methods and means of processing the echo-signals of doppler log and measurements the carrier frequency. Research methods are based on principle of phenomenological design of echo-signals of doppler log, mathematical vehicle of Gilbert, imitation design, methods of analysis of transitional processes in chains, statistical methods and theory of errors. A value for a theory - the frequency measuring method by means of timing fragmentation of echo-signals has been worked out. The method of tracking narrow-band filtering has been improved. The mathematical model has been modified and the computer physical modelling of doppler signals has been performed. A value for practice. The flow charts of means of preprocessing and measuring of carrier frequency have been developed. Analytic dependencies have been obtained and the errors in the designed methods of measuring carrier frequency of echo-signals have been analyzed, their quantitative assessment in terms of theoretical and experimental research having been performed. The degree of implementation - within the area. The sphere (area) of use - enterprises which are engaged in development of high-fidelity navigation apparatus, including hydroacoustic.